[INFO] cloning repository https://github.com/haishenming/learn_rust_the_hard_way
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/haishenming/learn_rust_the_hard_way" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhaishenming%2Flearn_rust_the_hard_way", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhaishenming%2Flearn_rust_the_hard_way'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 50d153259cd5c3aa51b519cfd9d2b6775448ece3
[INFO] testing haishenming/learn_rust_the_hard_way against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhaishenming%2Flearn_rust_the_hard_way" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/haishenming/learn_rust_the_hard_way 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/haishenming/learn_rust_the_hard_way
[INFO] finished tweaking git repo https://github.com/haishenming/learn_rust_the_hard_way
[INFO] tweaked toml for git repo https://github.com/haishenming/learn_rust_the_hard_way written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/haishenming/learn_rust_the_hard_way 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 648629cf585bddad9afd657df38bdf3ce727b1c518cfbc34ae2b6109d615e3e6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "648629cf585bddad9afd657df38bdf3ce727b1c518cfbc34ae2b6109d615e3e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "648629cf585bddad9afd657df38bdf3ce727b1c518cfbc34ae2b6109d615e3e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "648629cf585bddad9afd657df38bdf3ce727b1c518cfbc34ae2b6109d615e3e6", kill_on_drop: false }`
[INFO] [stdout] 648629cf585bddad9afd657df38bdf3ce727b1c518cfbc34ae2b6109d615e3e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 42789bbdbd9d6d5cd104bbd0b966a3a63b20033caf46454fe77cda5186480fec
[INFO] running `Command { std: "docker" "start" "-a" "42789bbdbd9d6d5cd104bbd0b966a3a63b20033caf46454fe77cda5186480fec", kill_on_drop: false }`
[INFO] [stderr]    Compiling learn_rust_the_hard_way v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "42789bbdbd9d6d5cd104bbd0b966a3a63b20033caf46454fe77cda5186480fec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42789bbdbd9d6d5cd104bbd0b966a3a63b20033caf46454fe77cda5186480fec", kill_on_drop: false }`
[INFO] [stdout] 42789bbdbd9d6d5cd104bbd0b966a3a63b20033caf46454fe77cda5186480fec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] ab9608ebf227b6e2bff362eacd5377c5d4966a2f9886d97a39e055d38aa29b5f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ab9608ebf227b6e2bff362eacd5377c5d4966a2f9886d97a39e055d38aa29b5f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling learn_rust_the_hard_way v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `Command { std: "docker" "inspect" "ab9608ebf227b6e2bff362eacd5377c5d4966a2f9886d97a39e055d38aa29b5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab9608ebf227b6e2bff362eacd5377c5d4966a2f9886d97a39e055d38aa29b5f", kill_on_drop: false }`
[INFO] [stdout] ab9608ebf227b6e2bff362eacd5377c5d4966a2f9886d97a39e055d38aa29b5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] a688dc05f2e4dda6850c7429206206162e1aa21dce83d368480bb3fb68daa08d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a688dc05f2e4dda6850c7429206206162e1aa21dce83d368480bb3fb68daa08d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/learn_rust_the_hard_way-c0137afa93429f1a)
[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" "a688dc05f2e4dda6850c7429206206162e1aa21dce83d368480bb3fb68daa08d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a688dc05f2e4dda6850c7429206206162e1aa21dce83d368480bb3fb68daa08d", kill_on_drop: false }`
[INFO] [stdout] a688dc05f2e4dda6850c7429206206162e1aa21dce83d368480bb3fb68daa08d