Dec 14 09:58:20.290 INFO testing GrahamClark/collections-exercises-rust against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 14 09:58:20.290 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 09:58:20.828 INFO [stdout] 16032a5abbcca3a60f95881a64b6d9d7baf460106426df17dbb2ae3ba1e87076
Dec 14 09:58:20.828 INFO running `"docker" "start" "-a" "16032a5abbcca3a60f95881a64b6d9d7baf460106426df17dbb2ae3ba1e87076"`
Dec 14 09:58:22.229 INFO [stderr] usermod: no changes
Dec 14 09:58:22.291 INFO [stderr]    Compiling collections_exercises v0.1.0 (/source)
Dec 14 09:58:24.452 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.20s
Dec 14 09:58:24.459 INFO [stderr] su: No module specific data is present
Dec 14 09:58:25.309 INFO running `"docker" "inspect" "16032a5abbcca3a60f95881a64b6d9d7baf460106426df17dbb2ae3ba1e87076"`
Dec 14 09:58:25.621 INFO running `"docker" "rm" "-f" "16032a5abbcca3a60f95881a64b6d9d7baf460106426df17dbb2ae3ba1e87076"`
Dec 14 09:58:25.845 INFO [stdout] 16032a5abbcca3a60f95881a64b6d9d7baf460106426df17dbb2ae3ba1e87076
Dec 14 09:58:25.851 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 09:58:26.180 INFO [stdout] 967eb9a27c68896f3f427cce110c3578f989c30da2ff2c2bff87640fd23f8150
Dec 14 09:58:26.188 INFO running `"docker" "start" "-a" "967eb9a27c68896f3f427cce110c3578f989c30da2ff2c2bff87640fd23f8150"`
Dec 14 09:58:27.384 INFO [stderr] usermod: no changes
Dec 14 09:58:27.480 INFO [stderr]    Compiling collections_exercises v0.1.0 (/source)
Dec 14 09:58:28.854 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.44s
Dec 14 09:58:28.867 INFO [stderr] su: No module specific data is present
Dec 14 09:58:29.396 INFO running `"docker" "inspect" "967eb9a27c68896f3f427cce110c3578f989c30da2ff2c2bff87640fd23f8150"`
Dec 14 09:58:29.645 INFO running `"docker" "rm" "-f" "967eb9a27c68896f3f427cce110c3578f989c30da2ff2c2bff87640fd23f8150"`
Dec 14 09:58:30.013 INFO [stdout] 967eb9a27c68896f3f427cce110c3578f989c30da2ff2c2bff87640fd23f8150
Dec 14 09:58:30.017 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 09:58:30.511 INFO [stdout] 114a0e1f966b8d13745b895e6c4e3eb452f03e94e2b83a4fd463e21659293464
Dec 14 09:58:30.516 INFO running `"docker" "start" "-a" "114a0e1f966b8d13745b895e6c4e3eb452f03e94e2b83a4fd463e21659293464"`
Dec 14 09:58:31.639 INFO [stderr] usermod: no changes
Dec 14 09:58:31.696 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
Dec 14 09:58:31.696 INFO [stderr]      Running /target/debug/deps/collections_exercises-881f02e684f04c42
Dec 14 09:58:31.704 INFO [stdout] 
Dec 14 09:58:31.704 INFO [stdout] running 0 tests
Dec 14 09:58:31.704 INFO [stdout] 
Dec 14 09:58:31.704 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 14 09:58:31.704 INFO [stdout] 
Dec 14 09:58:31.715 INFO [stderr]      Running /target/debug/deps/collections_exercises-b3dd00197ced021e
Dec 14 09:58:31.719 INFO [stderr]    Doc-tests collections_exercises
Dec 14 09:58:31.719 INFO [stdout] 
Dec 14 09:58:31.719 INFO [stdout] running 0 tests
Dec 14 09:58:31.719 INFO [stdout] 
Dec 14 09:58:31.719 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 14 09:58:31.719 INFO [stdout] 
Dec 14 09:58:32.551 INFO [stdout] 
Dec 14 09:58:32.551 INFO [stdout] running 0 tests
Dec 14 09:58:32.551 INFO [stdout] 
Dec 14 09:58:32.551 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 14 09:58:32.551 INFO [stdout] 
Dec 14 09:58:32.557 INFO [stderr] su: No module specific data is present
Dec 14 09:58:33.380 INFO running `"docker" "inspect" "114a0e1f966b8d13745b895e6c4e3eb452f03e94e2b83a4fd463e21659293464"`
Dec 14 09:58:33.719 INFO running `"docker" "rm" "-f" "114a0e1f966b8d13745b895e6c4e3eb452f03e94e2b83a4fd463e21659293464"`
Dec 14 09:58:34.003 INFO [stdout] 114a0e1f966b8d13745b895e6c4e3eb452f03e94e2b83a4fd463e21659293464