Dec 14 10:33:59.580 INFO testing Ermain-12/Introduction-to-Rust against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 14 10:33:59.580 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-5/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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"`
Dec 14 10:33:59.868 INFO [stdout] 5dac1110efb6462061fc4239d7e1ead924c48809482913fc1bcb095dc93e2f55
Dec 14 10:33:59.870 INFO running `"docker" "start" "-a" "5dac1110efb6462061fc4239d7e1ead924c48809482913fc1bcb095dc93e2f55"`
Dec 14 10:34:00.434 INFO [stderr] usermod: no changes
Dec 14 10:34:00.454 INFO [stderr]    Compiling hello_world v0.1.0 (/source)
Dec 14 10:34:01.359 INFO [stderr] warning: variable does not need to be mutable
Dec 14 10:34:01.359 INFO [stderr]   --> src/main.rs:27:8
Dec 14 10:34:01.359 INFO [stderr]    |
Dec 14 10:34:01.359 INFO [stderr] 27 |    let mut twenty_one = my_vec.pop();
Dec 14 10:34:01.359 INFO [stderr]    |        ----^^^^^^^^^^
Dec 14 10:34:01.359 INFO [stderr]    |        |
Dec 14 10:34:01.359 INFO [stderr]    |        help: remove this `mut`
Dec 14 10:34:01.359 INFO [stderr]    |
Dec 14 10:34:01.359 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 14 10:34:01.359 INFO [stderr] 
Dec 14 10:34:02.275 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.85s
Dec 14 10:34:02.276 INFO [stderr] su: No module specific data is present
Dec 14 10:34:02.611 INFO running `"docker" "inspect" "5dac1110efb6462061fc4239d7e1ead924c48809482913fc1bcb095dc93e2f55"`
Dec 14 10:34:02.699 INFO running `"docker" "rm" "-f" "5dac1110efb6462061fc4239d7e1ead924c48809482913fc1bcb095dc93e2f55"`
Dec 14 10:34:02.792 INFO [stdout] 5dac1110efb6462061fc4239d7e1ead924c48809482913fc1bcb095dc93e2f55
Dec 14 10:34:02.796 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-5/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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"`
Dec 14 10:34:03.018 INFO [stdout] e3d50390e04f81106820456c5264f2adaa81ffa2b5fd79cc088999825e41b736
Dec 14 10:34:03.020 INFO running `"docker" "start" "-a" "e3d50390e04f81106820456c5264f2adaa81ffa2b5fd79cc088999825e41b736"`
Dec 14 10:34:03.604 INFO [stderr] usermod: no changes
Dec 14 10:34:03.659 INFO [stderr]    Compiling hello_world v0.1.0 (/source)
Dec 14 10:34:04.483 INFO [stderr] warning: variable does not need to be mutable
Dec 14 10:34:04.483 INFO [stderr]   --> src/main.rs:27:8
Dec 14 10:34:04.483 INFO [stderr]    |
Dec 14 10:34:04.483 INFO [stderr] 27 |    let mut twenty_one = my_vec.pop();
Dec 14 10:34:04.483 INFO [stderr]    |        ----^^^^^^^^^^
Dec 14 10:34:04.483 INFO [stderr]    |        |
Dec 14 10:34:04.483 INFO [stderr]    |        help: remove this `mut`
Dec 14 10:34:04.483 INFO [stderr]    |
Dec 14 10:34:04.483 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 14 10:34:04.483 INFO [stderr] 
Dec 14 10:34:04.702 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.07s
Dec 14 10:34:04.708 INFO [stderr] su: No module specific data is present
Dec 14 10:34:05.143 INFO running `"docker" "inspect" "e3d50390e04f81106820456c5264f2adaa81ffa2b5fd79cc088999825e41b736"`
Dec 14 10:34:05.253 INFO running `"docker" "rm" "-f" "e3d50390e04f81106820456c5264f2adaa81ffa2b5fd79cc088999825e41b736"`
Dec 14 10:34:05.381 INFO [stdout] e3d50390e04f81106820456c5264f2adaa81ffa2b5fd79cc088999825e41b736
Dec 14 10:34:05.382 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-5/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-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"`
Dec 14 10:34:05.591 INFO [stdout] dfbf84962d9bf977066801572c8116a5a51f843e75d0e527816c2a6386a1bdf7
Dec 14 10:34:05.593 INFO running `"docker" "start" "-a" "dfbf84962d9bf977066801572c8116a5a51f843e75d0e527816c2a6386a1bdf7"`
Dec 14 10:34:06.000 INFO [stderr] usermod: no changes
Dec 14 10:34:06.045 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
Dec 14 10:34:06.046 INFO [stderr]      Running /target/debug/deps/hello_world-773055671ab890f6
Dec 14 10:34:06.047 INFO [stdout] 
Dec 14 10:34:06.047 INFO [stdout] running 0 tests
Dec 14 10:34:06.047 INFO [stdout] 
Dec 14 10:34:06.047 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 14 10:34:06.047 INFO [stdout] 
Dec 14 10:34:06.049 INFO [stderr] su: No module specific data is present
Dec 14 10:34:06.284 INFO running `"docker" "inspect" "dfbf84962d9bf977066801572c8116a5a51f843e75d0e527816c2a6386a1bdf7"`
Dec 14 10:34:06.386 INFO running `"docker" "rm" "-f" "dfbf84962d9bf977066801572c8116a5a51f843e75d0e527816c2a6386a1bdf7"`
Dec 14 10:34:06.460 INFO [stdout] dfbf84962d9bf977066801572c8116a5a51f843e75d0e527816c2a6386a1bdf7