[INFO] cloning repository https://github.com/wangzhf/crates-learning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wangzhf/crates-learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwangzhf%2Fcrates-learning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwangzhf%2Fcrates-learning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 40ae52fc1c53cf1576e1bfc5e9261dd905b13b11
[INFO] testing wangzhf/crates-learning against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwangzhf%2Fcrates-learning" "/workspace/builds/worker-26/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-26/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wangzhf/crates-learning on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wangzhf/crates-learning
[INFO] finished tweaking git repo https://github.com/wangzhf/crates-learning
[INFO] tweaked toml for git repo https://github.com/wangzhf/crates-learning written to /workspace/builds/worker-26/source/Cargo.toml
[INFO] crate git repo https://github.com/wangzhf/crates-learning already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a54a648fc131764f09ef06f3477b842a7cb3ec573ae1861d818b5909f96b0d78
[INFO] running `Command { std: "docker" "start" "-a" "a54a648fc131764f09ef06f3477b842a7cb3ec573ae1861d818b5909f96b0d78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a54a648fc131764f09ef06f3477b842a7cb3ec573ae1861d818b5909f96b0d78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a54a648fc131764f09ef06f3477b842a7cb3ec573ae1861d818b5909f96b0d78", kill_on_drop: false }`
[INFO] [stdout] a54a648fc131764f09ef06f3477b842a7cb3ec573ae1861d818b5909f96b0d78
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ebe2d381f60a930acc1082330995fbab92d1d6c0074ad66ea894a44a27d7bd5e
[INFO] running `Command { std: "docker" "start" "-a" "ebe2d381f60a930acc1082330995fbab92d1d6c0074ad66ea894a44a27d7bd5e", 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 crates-learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.87s
[INFO] running `Command { std: "docker" "inspect" "ebe2d381f60a930acc1082330995fbab92d1d6c0074ad66ea894a44a27d7bd5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebe2d381f60a930acc1082330995fbab92d1d6c0074ad66ea894a44a27d7bd5e", kill_on_drop: false }`
[INFO] [stdout] ebe2d381f60a930acc1082330995fbab92d1d6c0074ad66ea894a44a27d7bd5e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e0a6c153c8be4292fb006b0c1a2e81063fd0e45bff64d14ac686f0d44ac6928b
[INFO] running `Command { std: "docker" "start" "-a" "e0a6c153c8be4292fb006b0c1a2e81063fd0e45bff64d14ac686f0d44ac6928b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling crates-learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.68s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/crates_learning-a4cb1d4feb81710f)
[INFO] running `Command { std: "docker" "inspect" "e0a6c153c8be4292fb006b0c1a2e81063fd0e45bff64d14ac686f0d44ac6928b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0a6c153c8be4292fb006b0c1a2e81063fd0e45bff64d14ac686f0d44ac6928b", kill_on_drop: false }`
[INFO] [stdout] e0a6c153c8be4292fb006b0c1a2e81063fd0e45bff64d14ac686f0d44ac6928b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fbe77c71c02e5554f8189538f6e5d32697c6fa63c702328877f44bd19f805f9d
[INFO] running `Command { std: "docker" "start" "-a" "fbe77c71c02e5554f8189538f6e5d32697c6fa63c702328877f44bd19f805f9d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "fbe77c71c02e5554f8189538f6e5d32697c6fa63c702328877f44bd19f805f9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbe77c71c02e5554f8189538f6e5d32697c6fa63c702328877f44bd19f805f9d", kill_on_drop: false }`
[INFO] [stdout] fbe77c71c02e5554f8189538f6e5d32697c6fa63c702328877f44bd19f805f9d