[INFO] cloning repository https://github.com/CGQAQ/rust-exercises
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CGQAQ/rust-exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCGQAQ%2Frust-exercises", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCGQAQ%2Frust-exercises'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1c745c44d5f1e9c5801e7db0c18fc7278836cd7e
[INFO] testing CGQAQ/rust-exercises against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCGQAQ%2Frust-exercises" "/workspace/builds/worker-72/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-72/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CGQAQ/rust-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/CGQAQ/rust-exercises
[INFO] finished tweaking git repo https://github.com/CGQAQ/rust-exercises
[INFO] tweaked toml for git repo https://github.com/CGQAQ/rust-exercises written to /workspace/builds/worker-72/source/Cargo.toml
[INFO] crate git repo https://github.com/CGQAQ/rust-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-72/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/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] f3ef33f32aaf2384674411b1f9cac6a33fa30b2637d76fcf1cad9364c7b63588
[INFO] running `Command { std: "docker" "start" "-a" "f3ef33f32aaf2384674411b1f9cac6a33fa30b2637d76fcf1cad9364c7b63588", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3ef33f32aaf2384674411b1f9cac6a33fa30b2637d76fcf1cad9364c7b63588", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3ef33f32aaf2384674411b1f9cac6a33fa30b2637d76fcf1cad9364c7b63588", kill_on_drop: false }`
[INFO] [stdout] f3ef33f32aaf2384674411b1f9cac6a33fa30b2637d76fcf1cad9364c7b63588
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/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] 7951aea57f9bc912dfd87e479e614ac111db76e06d8685b832096071096f4101
[INFO] running `Command { std: "docker" "start" "-a" "7951aea57f9bc912dfd87e479e614ac111db76e06d8685b832096071096f4101", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling list v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "7951aea57f9bc912dfd87e479e614ac111db76e06d8685b832096071096f4101", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7951aea57f9bc912dfd87e479e614ac111db76e06d8685b832096071096f4101", kill_on_drop: false }`
[INFO] [stdout] 7951aea57f9bc912dfd87e479e614ac111db76e06d8685b832096071096f4101
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/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] 44b9ae1c87df7e3b8f386e10651c58084f5f29afd868ccea95f00a1aa59bc6ae
[INFO] running `Command { std: "docker" "start" "-a" "44b9ae1c87df7e3b8f386e10651c58084f5f29afd868ccea95f00a1aa59bc6ae", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling list v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.36s
[INFO] running `Command { std: "docker" "inspect" "44b9ae1c87df7e3b8f386e10651c58084f5f29afd868ccea95f00a1aa59bc6ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44b9ae1c87df7e3b8f386e10651c58084f5f29afd868ccea95f00a1aa59bc6ae", kill_on_drop: false }`
[INFO] [stdout] 44b9ae1c87df7e3b8f386e10651c58084f5f29afd868ccea95f00a1aa59bc6ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/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] 6a11750c70d6276b752ea3d973abef03bc39de609ef20e80c4f5894dcc3dd896
[INFO] running `Command { std: "docker" "start" "-a" "6a11750c70d6276b752ea3d973abef03bc39de609ef20e80c4f5894dcc3dd896", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 13.52s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/list-1947d1cf0af89032)
[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" "6a11750c70d6276b752ea3d973abef03bc39de609ef20e80c4f5894dcc3dd896", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a11750c70d6276b752ea3d973abef03bc39de609ef20e80c4f5894dcc3dd896", kill_on_drop: false }`
[INFO] [stdout] 6a11750c70d6276b752ea3d973abef03bc39de609ef20e80c4f5894dcc3dd896