Nov 17 15:34:58.345 INFO testing Ermain-12/Introduction-to-Rust against try#2e026d6e5d7621634147ad4c8074f1d964dbb1be for pr-55982
Nov 17 15:34:58.345 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-5/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-alt build --frozen" "-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"`
Nov 17 15:34:58.841 INFO [stdout] ad2e7e577eea12d99165ea2f3c231e2f76e6f4249c97ad7a9539d3c16edf0067
Nov 17 15:34:58.843 INFO running `"docker" "start" "-a" "ad2e7e577eea12d99165ea2f3c231e2f76e6f4249c97ad7a9539d3c16edf0067"`
Nov 17 15:34:59.975 INFO [stderr] usermod: no changes
Nov 17 15:35:00.055 INFO [stderr]    Compiling hello_world v0.1.0 (/source)
Nov 17 15:35:01.007 INFO [stderr] warning: variable does not need to be mutable
Nov 17 15:35:01.007 INFO [stderr]   --> src/main.rs:27:8
Nov 17 15:35:01.007 INFO [stderr]    |
Nov 17 15:35:01.007 INFO [stderr] 27 |    let mut twenty_one = my_vec.pop();
Nov 17 15:35:01.007 INFO [stderr]    |        ----^^^^^^^^^^
Nov 17 15:35:01.007 INFO [stderr]    |        |
Nov 17 15:35:01.007 INFO [stderr]    |        help: remove this `mut`
Nov 17 15:35:01.007 INFO [stderr]    |
Nov 17 15:35:01.007 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 17 15:35:01.007 INFO [stderr] 
Nov 17 15:35:02.262 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.26s
Nov 17 15:35:02.272 INFO [stderr] su: No module specific data is present
Nov 17 15:35:02.900 INFO running `"docker" "inspect" "ad2e7e577eea12d99165ea2f3c231e2f76e6f4249c97ad7a9539d3c16edf0067"`
Nov 17 15:35:03.171 INFO running `"docker" "rm" "-f" "ad2e7e577eea12d99165ea2f3c231e2f76e6f4249c97ad7a9539d3c16edf0067"`
Nov 17 15:35:03.388 INFO [stdout] ad2e7e577eea12d99165ea2f3c231e2f76e6f4249c97ad7a9539d3c16edf0067
Nov 17 15:35:03.390 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-5/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-alt test --frozen --no-run" "-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"`
Nov 17 15:35:03.721 INFO [stdout] e89f572b8fd0068e34bce38f0bf9c09bc1b19430d304958dc7cf92c7de0248d0
Nov 17 15:35:03.729 INFO running `"docker" "start" "-a" "e89f572b8fd0068e34bce38f0bf9c09bc1b19430d304958dc7cf92c7de0248d0"`
Nov 17 15:35:04.387 INFO [stderr] usermod: no changes
Nov 17 15:35:04.435 INFO [stderr]    Compiling hello_world v0.1.0 (/source)
Nov 17 15:35:05.283 INFO [stderr] warning: variable does not need to be mutable
Nov 17 15:35:05.283 INFO [stderr]   --> src/main.rs:27:8
Nov 17 15:35:05.283 INFO [stderr]    |
Nov 17 15:35:05.283 INFO [stderr] 27 |    let mut twenty_one = my_vec.pop();
Nov 17 15:35:05.283 INFO [stderr]    |        ----^^^^^^^^^^
Nov 17 15:35:05.283 INFO [stderr]    |        |
Nov 17 15:35:05.283 INFO [stderr]    |        help: remove this `mut`
Nov 17 15:35:05.283 INFO [stderr]    |
Nov 17 15:35:05.283 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 17 15:35:05.283 INFO [stderr] 
Nov 17 15:35:05.541 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.13s
Nov 17 15:35:05.545 INFO [stderr] su: No module specific data is present
Nov 17 15:35:05.864 INFO running `"docker" "inspect" "e89f572b8fd0068e34bce38f0bf9c09bc1b19430d304958dc7cf92c7de0248d0"`
Nov 17 15:35:06.043 INFO running `"docker" "rm" "-f" "e89f572b8fd0068e34bce38f0bf9c09bc1b19430d304958dc7cf92c7de0248d0"`
Nov 17 15:35:06.199 INFO [stdout] e89f572b8fd0068e34bce38f0bf9c09bc1b19430d304958dc7cf92c7de0248d0
Nov 17 15:35:06.201 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-5/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-alt test --frozen" "-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"`
Nov 17 15:35:06.381 INFO [stdout] 2a00e0bacfad2bbcf71663e6da7864b418d3b5fd4564d133fd8048d3d025e729
Nov 17 15:35:06.381 INFO running `"docker" "start" "-a" "2a00e0bacfad2bbcf71663e6da7864b418d3b5fd4564d133fd8048d3d025e729"`
Nov 17 15:35:07.030 INFO [stderr] usermod: no changes
Nov 17 15:35:07.093 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
Nov 17 15:35:07.093 INFO [stderr]      Running /target/debug/deps/hello_world-7d457f736f527f3b
Nov 17 15:35:07.107 INFO [stderr] su: No module specific data is present
Nov 17 15:35:07.107 INFO [stdout] 
Nov 17 15:35:07.107 INFO [stdout] running 0 tests
Nov 17 15:35:07.107 INFO [stdout] 
Nov 17 15:35:07.107 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 17 15:35:07.107 INFO [stdout] 
Nov 17 15:35:07.501 INFO running `"docker" "inspect" "2a00e0bacfad2bbcf71663e6da7864b418d3b5fd4564d133fd8048d3d025e729"`
Nov 17 15:35:07.617 INFO running `"docker" "rm" "-f" "2a00e0bacfad2bbcf71663e6da7864b418d3b5fd4564d133fd8048d3d025e729"`
Nov 17 15:35:07.746 INFO [stdout] 2a00e0bacfad2bbcf71663e6da7864b418d3b5fd4564d133fd8048d3d025e729