[INFO] cloning repository https://github.com/Junscuzzy/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/Junscuzzy/rust-exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJunscuzzy%2Frust-exercises", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJunscuzzy%2Frust-exercises'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7d8ac151740db280df7dd1297cb2ffa796b1d26b
[INFO] testing Junscuzzy/rust-exercises against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJunscuzzy%2Frust-exercises" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Junscuzzy/rust-exercises on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Junscuzzy/rust-exercises
[INFO] finished tweaking git repo https://github.com/Junscuzzy/rust-exercises
[INFO] tweaked toml for git repo https://github.com/Junscuzzy/rust-exercises written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/Junscuzzy/rust-exercises already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9e069fa92e7dc430fe1872f9f52075eb9f3a2854fd7b8e3d11a1dcaeb38f28dc
[INFO] running `Command { std: "docker" "start" "-a" "9e069fa92e7dc430fe1872f9f52075eb9f3a2854fd7b8e3d11a1dcaeb38f28dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e069fa92e7dc430fe1872f9f52075eb9f3a2854fd7b8e3d11a1dcaeb38f28dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e069fa92e7dc430fe1872f9f52075eb9f3a2854fd7b8e3d11a1dcaeb38f28dc", kill_on_drop: false }`
[INFO] [stdout] 9e069fa92e7dc430fe1872f9f52075eb9f3a2854fd7b8e3d11a1dcaeb38f28dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8feb4f894ebc7198bb0f1771491ce61b1dbcb3110f7f86923d4178f65c939a6e
[INFO] running `Command { std: "docker" "start" "-a" "8feb4f894ebc7198bb0f1771491ce61b1dbcb3110f7f86923d4178f65c939a6e", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling exercises v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.68s
[INFO] running `Command { std: "docker" "inspect" "8feb4f894ebc7198bb0f1771491ce61b1dbcb3110f7f86923d4178f65c939a6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8feb4f894ebc7198bb0f1771491ce61b1dbcb3110f7f86923d4178f65c939a6e", kill_on_drop: false }`
[INFO] [stdout] 8feb4f894ebc7198bb0f1771491ce61b1dbcb3110f7f86923d4178f65c939a6e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 04d482823e0d5f76f1451040545d018c66361ea38c919651c18ddc5943b7d994
[INFO] running `Command { std: "docker" "start" "-a" "04d482823e0d5f76f1451040545d018c66361ea38c919651c18ddc5943b7d994", 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] [stderr]    Compiling exercises v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "04d482823e0d5f76f1451040545d018c66361ea38c919651c18ddc5943b7d994", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04d482823e0d5f76f1451040545d018c66361ea38c919651c18ddc5943b7d994", kill_on_drop: false }`
[INFO] [stdout] 04d482823e0d5f76f1451040545d018c66361ea38c919651c18ddc5943b7d994
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 43d7a0e9db7a991fb34516a17d00cc6e8e5632a0f62cc589d8bf2e1c25e1eb77
[INFO] running `Command { std: "docker" "start" "-a" "43d7a0e9db7a991fb34516a17d00cc6e8e5632a0f62cc589d8bf2e1c25e1eb77", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/exercises-157815815c38669e)
[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" "43d7a0e9db7a991fb34516a17d00cc6e8e5632a0f62cc589d8bf2e1c25e1eb77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43d7a0e9db7a991fb34516a17d00cc6e8e5632a0f62cc589d8bf2e1c25e1eb77", kill_on_drop: false }`
[INFO] [stdout] 43d7a0e9db7a991fb34516a17d00cc6e8e5632a0f62cc589d8bf2e1c25e1eb77