[INFO] cloning repository https://github.com/GrahamClark/collections-exercises-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GrahamClark/collections-exercises-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGrahamClark%2Fcollections-exercises-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGrahamClark%2Fcollections-exercises-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 07217f7bbfeea46e91534db8ae932919ea060e90
[INFO] testing GrahamClark/collections-exercises-rust against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGrahamClark%2Fcollections-exercises-rust" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/GrahamClark/collections-exercises-rust on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/GrahamClark/collections-exercises-rust
[INFO] finished tweaking git repo https://github.com/GrahamClark/collections-exercises-rust
[INFO] tweaked toml for git repo https://github.com/GrahamClark/collections-exercises-rust written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/GrahamClark/collections-exercises-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 111c73bd57a63580ab132af33b66f9b88d627ef41283044d617a01e4aa33cbb1
[INFO] running `Command { std: "docker" "start" "-a" "111c73bd57a63580ab132af33b66f9b88d627ef41283044d617a01e4aa33cbb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "111c73bd57a63580ab132af33b66f9b88d627ef41283044d617a01e4aa33cbb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "111c73bd57a63580ab132af33b66f9b88d627ef41283044d617a01e4aa33cbb1", kill_on_drop: false }`
[INFO] [stdout] 111c73bd57a63580ab132af33b66f9b88d627ef41283044d617a01e4aa33cbb1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 324d26f794e23fa355edc8bfb089a64aa80115ebecd11ccff1bbf7c9e88db383
[INFO] running `Command { std: "docker" "start" "-a" "324d26f794e23fa355edc8bfb089a64aa80115ebecd11ccff1bbf7c9e88db383", kill_on_drop: false }`
[INFO] [stderr]    Compiling collections_exercises v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 46s
[INFO] running `Command { std: "docker" "inspect" "324d26f794e23fa355edc8bfb089a64aa80115ebecd11ccff1bbf7c9e88db383", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "324d26f794e23fa355edc8bfb089a64aa80115ebecd11ccff1bbf7c9e88db383", kill_on_drop: false }`
[INFO] [stdout] 324d26f794e23fa355edc8bfb089a64aa80115ebecd11ccff1bbf7c9e88db383
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c82e063559e48fcb5e087d59cf3649cbc2ec5ccdbca6e601b856d17b5ffde24
[INFO] running `Command { std: "docker" "start" "-a" "8c82e063559e48fcb5e087d59cf3649cbc2ec5ccdbca6e601b856d17b5ffde24", 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 test [unoptimized + debuginfo] target(s) in 40.37s
[INFO] running `Command { std: "docker" "inspect" "8c82e063559e48fcb5e087d59cf3649cbc2ec5ccdbca6e601b856d17b5ffde24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c82e063559e48fcb5e087d59cf3649cbc2ec5ccdbca6e601b856d17b5ffde24", kill_on_drop: false }`
[INFO] [stdout] 8c82e063559e48fcb5e087d59cf3649cbc2ec5ccdbca6e601b856d17b5ffde24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 47b72948f4e949b2fce3a55c871715ce58ee16054383cc4b398960ef682cc30e
[INFO] running `Command { std: "docker" "start" "-a" "47b72948f4e949b2fce3a55c871715ce58ee16054383cc4b398960ef682cc30e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.32s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/collections_exercises-ddd7328907951281)
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/collections_exercises-04445775c464ddbf)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests collections_exercises
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "47b72948f4e949b2fce3a55c871715ce58ee16054383cc4b398960ef682cc30e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47b72948f4e949b2fce3a55c871715ce58ee16054383cc4b398960ef682cc30e", kill_on_drop: false }`
[INFO] [stdout] 47b72948f4e949b2fce3a55c871715ce58ee16054383cc4b398960ef682cc30e