Dec 11 20:55:24.825 INFO checking cholcombe973/memory_monitor against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 20:55:24.825 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-0/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +3a75e80557a103497cffbcab395a2f37061a77ea-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 11 20:55:25.448 INFO [stdout] c8a3b79c502796033fbc05bf5cb19ceeb5a585005fd8bdbbcbbb28f58411de57
Dec 11 20:55:25.450 INFO running `"docker" "start" "-a" "c8a3b79c502796033fbc05bf5cb19ceeb5a585005fd8bdbbcbbb28f58411de57"`
Dec 11 20:55:26.792 INFO [stderr] usermod: no changes
Dec 11 20:55:26.929 INFO [stderr]     Checking nom v2.2.1
Dec 11 20:55:26.930 INFO [stderr]    Compiling semver v0.6.0
Dec 11 20:55:26.930 INFO [stderr]     Checking nix v0.9.0
Dec 11 20:55:26.930 INFO [stderr]     Checking humannum v0.1.0
Dec 11 20:55:26.930 INFO [stderr]     Checking simplelog v0.4.2
Dec 11 20:55:29.904 INFO [stderr]    Compiling rustc_version v0.2.1
Dec 11 20:55:32.044 INFO [stderr]    Compiling procinfo v0.4.2
Dec 11 20:55:44.088 INFO [stderr]     Checking process_utils v0.1.0
Dec 11 20:55:44.794 INFO [stderr]     Checking memory_monitor v0.1.0 (/source)
Dec 11 20:55:47.084 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 20:55:47.085 INFO [stderr]   --> src/main.rs:85:5
Dec 11 20:55:47.085 INFO [stderr]    |
Dec 11 20:55:47.085 INFO [stderr] 85 | /     kill_and_restart(
Dec 11 20:55:47.085 INFO [stderr] 86 | |         pid_info,
Dec 11 20:55:47.085 INFO [stderr] 87 | |         memory_byte_limit,
Dec 11 20:55:47.085 INFO [stderr] 88 | |         matches.is_present("parent"),
Dec 11 20:55:47.085 INFO [stderr] 89 | |         matches.is_present("test"),
Dec 11 20:55:47.085 INFO [stderr] 90 | |     );
Dec 11 20:55:47.085 INFO [stderr]    | |______^
Dec 11 20:55:47.085 INFO [stderr]    |
Dec 11 20:55:47.085 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 20:55:47.086 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 20:55:47.086 INFO [stderr] 
Dec 11 20:55:47.086 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 20:55:47.086 INFO [stderr]   --> src/main.rs:85:5
Dec 11 20:55:47.086 INFO [stderr]    |
Dec 11 20:55:47.086 INFO [stderr] 85 | /     kill_and_restart(
Dec 11 20:55:47.086 INFO [stderr] 86 | |         pid_info,
Dec 11 20:55:47.086 INFO [stderr] 87 | |         memory_byte_limit,
Dec 11 20:55:47.086 INFO [stderr] 88 | |         matches.is_present("parent"),
Dec 11 20:55:47.086 INFO [stderr] 89 | |         matches.is_present("test"),
Dec 11 20:55:47.086 INFO [stderr] 90 | |     );
Dec 11 20:55:47.086 INFO [stderr]    | |______^
Dec 11 20:55:47.086 INFO [stderr]    |
Dec 11 20:55:47.086 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 20:55:47.086 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 20:55:47.086 INFO [stderr] 
Dec 11 20:55:47.153 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.33s
Dec 11 20:55:47.169 INFO [stderr] su: No module specific data is present
Dec 11 20:55:48.437 INFO running `"docker" "inspect" "c8a3b79c502796033fbc05bf5cb19ceeb5a585005fd8bdbbcbbb28f58411de57"`
Dec 11 20:55:48.770 INFO running `"docker" "rm" "-f" "c8a3b79c502796033fbc05bf5cb19ceeb5a585005fd8bdbbcbbb28f58411de57"`
Dec 11 20:55:49.178 INFO [stdout] c8a3b79c502796033fbc05bf5cb19ceeb5a585005fd8bdbbcbbb28f58411de57