Dec 06 13:39:46.577 INFO testing GrahamClark/collections-exercises-rust against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 06 13:39:46.577 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 06 13:39:46.798 INFO [stdout] 33795889c4ab1001177332271a04452a83c59e384193033adf335fab73ee7bb0
Dec 06 13:39:46.804 INFO running `"docker" "start" "-a" "33795889c4ab1001177332271a04452a83c59e384193033adf335fab73ee7bb0"`
Dec 06 13:39:48.324 INFO [stderr] usermod: no changes
Dec 06 13:39:48.388 INFO [stderr]    Compiling collections_exercises v0.1.0 (/source)
Dec 06 13:39:50.620 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.25s
Dec 06 13:39:50.634 INFO [stderr] su: No module specific data is present
Dec 06 13:39:51.320 INFO running `"docker" "inspect" "33795889c4ab1001177332271a04452a83c59e384193033adf335fab73ee7bb0"`
Dec 06 13:39:51.630 INFO running `"docker" "rm" "-f" "33795889c4ab1001177332271a04452a83c59e384193033adf335fab73ee7bb0"`
Dec 06 13:39:51.944 INFO [stdout] 33795889c4ab1001177332271a04452a83c59e384193033adf335fab73ee7bb0
Dec 06 13:39:51.950 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 06 13:39:52.454 INFO [stdout] 2da82f136063a744e8149d8b422cd8bd9005b6907b880cfe5ad84ee0d60bb25d
Dec 06 13:39:52.456 INFO running `"docker" "start" "-a" "2da82f136063a744e8149d8b422cd8bd9005b6907b880cfe5ad84ee0d60bb25d"`
Dec 06 13:39:53.973 INFO [stderr] usermod: no changes
Dec 06 13:39:54.033 INFO [stderr]    Compiling collections_exercises v0.1.0 (/source)
Dec 06 13:39:55.344 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.34s
Dec 06 13:39:55.344 INFO [stderr] su: No module specific data is present
Dec 06 13:39:56.084 INFO running `"docker" "inspect" "2da82f136063a744e8149d8b422cd8bd9005b6907b880cfe5ad84ee0d60bb25d"`
Dec 06 13:39:56.381 INFO running `"docker" "rm" "-f" "2da82f136063a744e8149d8b422cd8bd9005b6907b880cfe5ad84ee0d60bb25d"`
Dec 06 13:39:56.676 INFO [stdout] 2da82f136063a744e8149d8b422cd8bd9005b6907b880cfe5ad84ee0d60bb25d
Dec 06 13:39:56.680 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 06 13:39:57.220 INFO [stdout] 4ed5cda79dfcf6de755a98bd4cb7649110e67abd81522f1bf5251e527c05f542
Dec 06 13:39:57.224 INFO running `"docker" "start" "-a" "4ed5cda79dfcf6de755a98bd4cb7649110e67abd81522f1bf5251e527c05f542"`
Dec 06 13:39:58.494 INFO [stderr] usermod: no changes
Dec 06 13:39:58.556 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
Dec 06 13:39:58.560 INFO [stderr]      Running /target/debug/deps/collections_exercises-47a3f3024ab26d76
Dec 06 13:39:58.564 INFO [stderr]      Running /target/debug/deps/collections_exercises-df7e47f78b181281
Dec 06 13:39:58.564 INFO [stdout] 
Dec 06 13:39:58.564 INFO [stdout] running 0 tests
Dec 06 13:39:58.564 INFO [stdout] 
Dec 06 13:39:58.564 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 13:39:58.564 INFO [stdout] 
Dec 06 13:39:58.580 INFO [stdout] 
Dec 06 13:39:58.580 INFO [stderr]    Doc-tests collections_exercises
Dec 06 13:39:58.580 INFO [stdout] running 0 tests
Dec 06 13:39:58.580 INFO [stdout] 
Dec 06 13:39:58.580 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 13:39:58.580 INFO [stdout] 
Dec 06 13:39:59.325 INFO [stdout] 
Dec 06 13:39:59.325 INFO [stdout] running 0 tests
Dec 06 13:39:59.325 INFO [stdout] 
Dec 06 13:39:59.325 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 13:39:59.325 INFO [stdout] 
Dec 06 13:39:59.331 INFO [stderr] su: No module specific data is present
Dec 06 13:40:00.463 INFO running `"docker" "inspect" "4ed5cda79dfcf6de755a98bd4cb7649110e67abd81522f1bf5251e527c05f542"`
Dec 06 13:40:00.854 INFO running `"docker" "rm" "-f" "4ed5cda79dfcf6de755a98bd4cb7649110e67abd81522f1bf5251e527c05f542"`
Dec 06 13:40:01.184 INFO [stdout] 4ed5cda79dfcf6de755a98bd4cb7649110e67abd81522f1bf5251e527c05f542