[INFO] cloning repository https://github.com/fearless23/learn_rust_lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fearless23/learn_rust_lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffearless23%2Flearn_rust_lang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffearless23%2Flearn_rust_lang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 30fdacd3f2e879d427500f6ded6af5f7404d6848
[INFO] testing fearless23/learn_rust_lang against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffearless23%2Flearn_rust_lang" "/workspace/builds/worker-20/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-20/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fearless23/learn_rust_lang on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fearless23/learn_rust_lang
[INFO] finished tweaking git repo https://github.com/fearless23/learn_rust_lang
[INFO] tweaked toml for git repo https://github.com/fearless23/learn_rust_lang written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] crate git repo https://github.com/fearless23/learn_rust_lang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 351f2c9de82a12eaa0e1d5e04846478b198a900cac89fc0ec61fe2176623f4d6
[INFO] running `Command { std: "docker" "start" "-a" "351f2c9de82a12eaa0e1d5e04846478b198a900cac89fc0ec61fe2176623f4d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "351f2c9de82a12eaa0e1d5e04846478b198a900cac89fc0ec61fe2176623f4d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "351f2c9de82a12eaa0e1d5e04846478b198a900cac89fc0ec61fe2176623f4d6", kill_on_drop: false }`
[INFO] [stdout] 351f2c9de82a12eaa0e1d5e04846478b198a900cac89fc0ec61fe2176623f4d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 284694c6d3da8a8bbb909aa18082a490ccac13e40b1ec7a0d9674750d46d95ae
[INFO] running `Command { std: "docker" "start" "-a" "284694c6d3da8a8bbb909aa18082a490ccac13e40b1ec7a0d9674750d46d95ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling learn_rust_lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "284694c6d3da8a8bbb909aa18082a490ccac13e40b1ec7a0d9674750d46d95ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "284694c6d3da8a8bbb909aa18082a490ccac13e40b1ec7a0d9674750d46d95ae", kill_on_drop: false }`
[INFO] [stdout] 284694c6d3da8a8bbb909aa18082a490ccac13e40b1ec7a0d9674750d46d95ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ae82a732af0697dc3e70c444b658e20290f6640c236cb6051fcbc53b1f5a24d
[INFO] running `Command { std: "docker" "start" "-a" "7ae82a732af0697dc3e70c444b658e20290f6640c236cb6051fcbc53b1f5a24d", kill_on_drop: false }`
[INFO] [stderr]    Compiling learn_rust_lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "7ae82a732af0697dc3e70c444b658e20290f6640c236cb6051fcbc53b1f5a24d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ae82a732af0697dc3e70c444b658e20290f6640c236cb6051fcbc53b1f5a24d", kill_on_drop: false }`
[INFO] [stdout] 7ae82a732af0697dc3e70c444b658e20290f6640c236cb6051fcbc53b1f5a24d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f160870fa5ef7838f0e2d740526bffd8dec24851065372929a706bc791d6df03
[INFO] running `Command { std: "docker" "start" "-a" "f160870fa5ef7838f0e2d740526bffd8dec24851065372929a706bc791d6df03", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/learn_rust_lang-61ff4da232527ade)
[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" "f160870fa5ef7838f0e2d740526bffd8dec24851065372929a706bc791d6df03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f160870fa5ef7838f0e2d740526bffd8dec24851065372929a706bc791d6df03", kill_on_drop: false }`
[INFO] [stdout] f160870fa5ef7838f0e2d740526bffd8dec24851065372929a706bc791d6df03