[INFO] cloning repository https://github.com/tomaster777/collection_exercises
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tomaster777/collection_exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomaster777%2Fcollection_exercises", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomaster777%2Fcollection_exercises'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2468ac4fc75d3466543f75c86546859ef6a04ca9
[INFO] testing tomaster777/collection_exercises against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomaster777%2Fcollection_exercises" "/workspace/builds/worker-50/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-50/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tomaster777/collection_exercises on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tomaster777/collection_exercises
[INFO] finished tweaking git repo https://github.com/tomaster777/collection_exercises
[INFO] tweaked toml for git repo https://github.com/tomaster777/collection_exercises written to /workspace/builds/worker-50/source/Cargo.toml
[INFO] crate git repo https://github.com/tomaster777/collection_exercises already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cfb5604a08efd23b580fede2b70bbfe50bb2188060bc637d0f5567e7d333d7a9
[INFO] running `Command { std: "docker" "start" "-a" "cfb5604a08efd23b580fede2b70bbfe50bb2188060bc637d0f5567e7d333d7a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cfb5604a08efd23b580fede2b70bbfe50bb2188060bc637d0f5567e7d333d7a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfb5604a08efd23b580fede2b70bbfe50bb2188060bc637d0f5567e7d333d7a9", kill_on_drop: false }`
[INFO] [stdout] cfb5604a08efd23b580fede2b70bbfe50bb2188060bc637d0f5567e7d333d7a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed2316017d2226ca9dfdb4b5f5be347bcb342db6d91d6a7a4e76d10bc09c2d80
[INFO] running `Command { std: "docker" "start" "-a" "ed2316017d2226ca9dfdb4b5f5be347bcb342db6d91d6a7a4e76d10bc09c2d80", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling collections_exercises v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.43s
[INFO] running `Command { std: "docker" "inspect" "ed2316017d2226ca9dfdb4b5f5be347bcb342db6d91d6a7a4e76d10bc09c2d80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed2316017d2226ca9dfdb4b5f5be347bcb342db6d91d6a7a4e76d10bc09c2d80", kill_on_drop: false }`
[INFO] [stdout] ed2316017d2226ca9dfdb4b5f5be347bcb342db6d91d6a7a4e76d10bc09c2d80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c525c69e10c85a9143aae6b5e5460f7d1e7f0afa1818f8f5d9ddd009fcc0738b
[INFO] running `Command { std: "docker" "start" "-a" "c525c69e10c85a9143aae6b5e5460f7d1e7f0afa1818f8f5d9ddd009fcc0738b", kill_on_drop: false }`
[INFO] [stderr]    Compiling collections_exercises v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `Command { std: "docker" "inspect" "c525c69e10c85a9143aae6b5e5460f7d1e7f0afa1818f8f5d9ddd009fcc0738b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c525c69e10c85a9143aae6b5e5460f7d1e7f0afa1818f8f5d9ddd009fcc0738b", kill_on_drop: false }`
[INFO] [stdout] c525c69e10c85a9143aae6b5e5460f7d1e7f0afa1818f8f5d9ddd009fcc0738b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 795a336392aeb48a110c4b024fe27c7b144f7d9bc8f6c7a91b3590b226220803
[INFO] running `Command { std: "docker" "start" "-a" "795a336392aeb48a110c4b024fe27c7b144f7d9bc8f6c7a91b3590b226220803", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.35s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/collections_exercises-99c2b7177484395e)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::ex_1_check ... ok
[INFO] [stdout] test tests::ex_2_check ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "795a336392aeb48a110c4b024fe27c7b144f7d9bc8f6c7a91b3590b226220803", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "795a336392aeb48a110c4b024fe27c7b144f7d9bc8f6c7a91b3590b226220803", kill_on_drop: false }`
[INFO] [stdout] 795a336392aeb48a110c4b024fe27c7b144f7d9bc8f6c7a91b3590b226220803