"Local profile (diff)" command fails (with valgrind 3.19.0)

I am trying to run the "Local profile (diff)" command given on this page. Unfortunately it doesn't work:

$ ./target/release/collector profile_local cachegrind +3071e0aef6dfd0a150c3fb1da0abad4ec86ca0aa --rustc2 +94b77248c5aa991f2597b4a1c1a49e297ac2f3e2 --include ctfe-stress-5 --profiles Debug --scenarios Full
Running with 1 job(s)
detecting the channel of the `3071e0aef6dfd0a150c3fb1da0abad4ec86ca0aa` toolchain...
downloading <https://ci-artifacts.rust-lang.org/rustc-builds/3071e0aef6dfd0a150c3fb1da0abad4ec86ca0aa/rustc-nightly-x86_64-unknown-linux-gnu.tar.xz>...
75.26 MB / 75.26 MB [===============================================================================================================================================================================================================================================] 100.00 % 11.18 MB/s 
downloading <https://ci-artifacts.rust-lang.org/rustc-builds/3071e0aef6dfd0a150c3fb1da0abad4ec86ca0aa/rust-std-nightly-x86_64-unknown-linux-gnu.tar.xz>...
27.80 MB / 27.80 MB [===============================================================================================================================================================================================================================================] 100.00 % 11.16 MB/s 
toolchain `3071e0aef6dfd0a150c3fb1da0abad4ec86ca0aa` is successfully installed!
Profiling 3071e0aef6dfd0a150c3fb1da0abad4ec86ca0aa with Cachegrind
Executing benchmark ctfe-stress-5 (1/1)
Preparing ctfe-stress-5
Running ctfe-stress-5: Debug + [Full]
Finished benchmark ctfe-stress-5 (1/1)
collector error: Failed to profile 'ctfe-stress-5' with Cachegrind, recorded: expected success, got exit status: 101

stderr=   Compiling ctfe-stress-5 v0.1.0 (/tmp/.tmprorwj9)
==92466== Cachegrind, a cache and branch-prediction profiler
==92466== Copyright (C) 2002-2017, and GNU GPL'd, by Nicholas Nethercote et al.
==92466== Using Valgrind-3.19.0 and LibVEX; rerun with -h for copyright info
==92466== Command: /home/r/.rustup/toolchains/3071e0aef6dfd0a150c3fb1da0abad4ec86ca0aa/bin/rustc --crate-name ctfe_stress_5 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=60c11a1ed113cdf7 -C extra-filename=-60c11a1ed113cdf7 --out-dir /tmp/.tmprorwj9/target/debug/deps -L dependency=/tmp/.tmprorwj9/target/debug/deps -Ctarget-cpu=native -Adeprecated -Aunknown-lints -Zincremental-verify-ich
==92466== 
--92466-- warning: L3 cache found, using its data for the LL simulation.
### unhandled dwarf2 abbrev form code 0x25
### unhandled dwarf2 abbrev form code 0x25
### unhandled dwarf2 abbrev form code 0x25
### unhandled dwarf2 abbrev form code 0x23
### unhandled dwarf2 abbrev form code 0x25
### unhandled dwarf2 abbrev form code 0x25
### unhandled dwarf2 abbrev form code 0x25
### unhandled dwarf2 abbrev form code 0x23
==92466== Valgrind: debuginfo reader: ensure_valid failed:
==92466== Valgrind:   during call to ML_(img_get)
==92466== Valgrind:   request for range [2334864704, +4) exceeds
==92466== Valgrind:   valid image size of 2821480 for image:
==92466== Valgrind:   "/home/r/.rustup/toolchains/3071e0aef6dfd0a150c3fb1da0abad4ec86ca0aa/bin/rustc"
==92466== 
==92466== Valgrind: debuginfo reader: Possibly corrupted debuginfo file.
==92466== Valgrind: I can't recover.  Giving up.  Sorry.
==92466== 
thread 'main' panicked at 'command did not complete successfully: MALLOC_CONF="dirty_decay_ms:0,muzzy_decay_ms:0" RUSTC_FORCE_INCR_COMP_ARTIFACT_HEADER="rustc-perf" RUSTC_FORCE_RUSTC_VERSION="rustc-perf" "valgrind" "--tool=cachegrind" "--cache-sim=no" "--branch-sim=no" "--cachegrind-out-file=cgout" "/home/r/.rustup/toolchains/3071e0aef6dfd0a150c3fb1da0abad4ec86ca0aa/bin/rustc" "--crate-name" "ctfe_stress_5" "src/lib.rs" "--error-format=json" "--json=diagnostic-rendered-ansi,artifacts,future-incompat" "--crate-type" "lib" "--emit=dep-info,metadata,link" "-C" "embed-bitcode=no" "-C" "debuginfo=2" "-C" "metadata=60c11a1ed113cdf7" "-C" "extra-filename=-60c11a1ed113cdf7" "--out-dir" "/tmp/.tmprorwj9/target/debug/deps" "-L" "dependency=/tmp/.tmprorwj9/target/debug/deps" "-Ctarget-cpu=native" "-Adeprecated" "-Aunknown-lints" "-Zincremental-verify-ich"', collector/src/bin/rustc-fake.rs:24:5
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
error: could not compile `ctfe-stress-5` (lib)


 stdout=

detecting the channel of the `94b77248c5aa991f2597b4a1c1a49e297ac2f3e2` toolchain...
downloading <https://ci-artifacts.rust-lang.org/rustc-builds/94b77248c5aa991f2597b4a1c1a49e297ac2f3e2/rustc-nightly-x86_64-unknown-linux-gnu.tar.xz>...
73.95 MB / 73.95 MB [================================================================================================================================================================================================================================================] 100.00 % 8.94 MB/s 
downloading <https://ci-artifacts.rust-lang.org/rustc-builds/94b77248c5aa991f2597b4a1c1a49e297ac2f3e2/rust-std-nightly-x86_64-unknown-linux-gnu.tar.xz>...
27.78 MB / 27.78 MB [================================================================================================================================================================================================================================================] 100.00 % 8.36 MB/s 
toolchain `94b77248c5aa991f2597b4a1c1a49e297ac2f3e2` is successfully installed!
Profiling 94b77248c5aa991f2597b4a1c1a49e297ac2f3e2 with Cachegrind
Executing benchmark ctfe-stress-5 (1/1)
Preparing ctfe-stress-5
Running ctfe-stress-5: Debug + [Full]
Finished benchmark ctfe-stress-5 (1/1)
collector error: Failed to profile 'ctfe-stress-5' with Cachegrind, recorded: expected success, got exit status: 101

stderr=   Compiling ctfe-stress-5 v0.1.0 (/tmp/.tmpyrVw1y)
==92495== Cachegrind, a cache and branch-prediction profiler
==92495== Copyright (C) 2002-2017, and GNU GPL'd, by Nicholas Nethercote et al.
==92495== Using Valgrind-3.19.0 and LibVEX; rerun with -h for copyright info
==92495== Command: /home/r/.rustup/toolchains/94b77248c5aa991f2597b4a1c1a49e297ac2f3e2/bin/rustc --crate-name ctfe_stress_5 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=60c11a1ed113cdf7 -C extra-filename=-60c11a1ed113cdf7 --out-dir /tmp/.tmpyrVw1y/target/debug/deps -L dependency=/tmp/.tmpyrVw1y/target/debug/deps -Ctarget-cpu=native -Adeprecated -Aunknown-lints -Zincremental-verify-ich
==92495== 
--92495-- warning: L3 cache found, using its data for the LL simulation.
### unhandled dwarf2 abbrev form code 0x25
### unhandled dwarf2 abbrev form code 0x25
### unhandled dwarf2 abbrev form code 0x25
### unhandled dwarf2 abbrev form code 0x23
### unhandled dwarf2 abbrev form code 0x25
### unhandled dwarf2 abbrev form code 0x25
### unhandled dwarf2 abbrev form code 0x25
### unhandled dwarf2 abbrev form code 0x23
==92495== Valgrind: debuginfo reader: ensure_valid failed:
==92495== Valgrind:   during call to ML_(img_get)
==92495== Valgrind:   request for range [2334864704, +4) exceeds
==92495== Valgrind:   valid image size of 2821480 for image:
==92495== Valgrind:   "/home/r/.rustup/toolchains/94b77248c5aa991f2597b4a1c1a49e297ac2f3e2/bin/rustc"
==92495== 
==92495== Valgrind: debuginfo reader: Possibly corrupted debuginfo file.
==92495== Valgrind: I can't recover.  Giving up.  Sorry.
==92495== 
thread 'main' panicked at 'command did not complete successfully: MALLOC_CONF="dirty_decay_ms:0,muzzy_decay_ms:0" RUSTC_FORCE_INCR_COMP_ARTIFACT_HEADER="rustc-perf" RUSTC_FORCE_RUSTC_VERSION="rustc-perf" "valgrind" "--tool=cachegrind" "--cache-sim=no" "--branch-sim=no" "--cachegrind-out-file=cgout" "/home/r/.rustup/toolchains/94b77248c5aa991f2597b4a1c1a49e297ac2f3e2/bin/rustc" "--crate-name" "ctfe_stress_5" "src/lib.rs" "--error-format=json" "--json=diagnostic-rendered-ansi,artifacts,future-incompat" "--crate-type" "lib" "--emit=dep-info,metadata,link" "-C" "embed-bitcode=no" "-C" "debuginfo=2" "-C" "metadata=60c11a1ed113cdf7" "-C" "extra-filename=-60c11a1ed113cdf7" "--out-dir" "/tmp/.tmpyrVw1y/target/debug/deps" "-L" "dependency=/tmp/.tmpyrVw1y/target/debug/deps" "-Ctarget-cpu=native" "-Adeprecated" "-Aunknown-lints" "-Zincremental-verify-ich"', collector/src/bin/rustc-fake.rs:24:5
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
error: could not compile `ctfe-stress-5` (lib)


 stdout=

Cannot open results/cgout-3071e0aef6dfd0a150c3fb1da0abad4ec86ca0aa-ctfe-stress-5-Debug-Full for reading
collector error: Cannot run cg_diff

Caused by:
    failed to generate cachegrind diff
Diffs:
collector error: 3 benchmarks failed

Am I doing something wrong?

This is on Debian testing with all apt-updates installed.

$ valgrind --version
valgrind-3.19.0

Is that valgrind too old, or so?

Reproduce the failure with the profile_local command and Valgrind 3.19.0, then inspect collector/src/bin/rustc-fake.rs and the Cachegrind/cg_diff path shown in the output. Determine why Valgrind rejects the rustc debug information; done means local profiling completes and the generated Cachegrind diff can be read.