[INFO] cloning repository https://github.com/e-kohlm/CompB17_2_Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/e-kohlm/CompB17_2_Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fe-kohlm%2FCompB17_2_Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fe-kohlm%2FCompB17_2_Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5246e3c1d723dc02a6d2d29e2579ab9ce5f843ec
[INFO] checking e-kohlm/CompB17_2_Rust against master#c29082fe7dc6e902169cacbae165562a7e4a1fd6 for pr-120805
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fe-kohlm%2FCompB17_2_Rust" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/e-kohlm/CompB17_2_Rust on toolchain c29082fe7dc6e902169cacbae165562a7e4a1fd6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c29082fe7dc6e902169cacbae165562a7e4a1fd6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/e-kohlm/CompB17_2_Rust
[INFO] finished tweaking git repo https://github.com/e-kohlm/CompB17_2_Rust
[INFO] tweaked toml for git repo https://github.com/e-kohlm/CompB17_2_Rust written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/e-kohlm/CompB17_2_Rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c29082fe7dc6e902169cacbae165562a7e4a1fd6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking e-kohlm/CompB17_2_Rust against try#a76cc2633df38feca72f20156e7d9e4b074337f3 for pr-120805
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fe-kohlm%2FCompB17_2_Rust" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/e-kohlm/CompB17_2_Rust on toolchain a76cc2633df38feca72f20156e7d9e4b074337f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a76cc2633df38feca72f20156e7d9e4b074337f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/e-kohlm/CompB17_2_Rust
[INFO] finished tweaking git repo https://github.com/e-kohlm/CompB17_2_Rust
[INFO] tweaked toml for git repo https://github.com/e-kohlm/CompB17_2_Rust written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/e-kohlm/CompB17_2_Rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a76cc2633df38feca72f20156e7d9e4b074337f3" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking e-kohlm/CompB17_2_Rust against try#a76cc2633df38feca72f20156e7d9e4b074337f3 for pr-120805
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fe-kohlm%2FCompB17_2_Rust" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/e-kohlm/CompB17_2_Rust on toolchain a76cc2633df38feca72f20156e7d9e4b074337f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a76cc2633df38feca72f20156e7d9e4b074337f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/e-kohlm/CompB17_2_Rust
[INFO] finished tweaking git repo https://github.com/e-kohlm/CompB17_2_Rust
[INFO] tweaked toml for git repo https://github.com/e-kohlm/CompB17_2_Rust written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/e-kohlm/CompB17_2_Rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a76cc2633df38feca72f20156e7d9e4b074337f3" "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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+a76cc2633df38feca72f20156e7d9e4b074337f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a8a22d20acd3070e9715c8c2e22cf13012944f927fb971d0ad98be2fa540272
[INFO] running `Command { std: "docker" "start" "-a" "1a8a22d20acd3070e9715c8c2e22cf13012944f927fb971d0ad98be2fa540272", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a8a22d20acd3070e9715c8c2e22cf13012944f927fb971d0ad98be2fa540272", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a8a22d20acd3070e9715c8c2e22cf13012944f927fb971d0ad98be2fa540272", kill_on_drop: false }`
[INFO] [stdout] 1a8a22d20acd3070e9715c8c2e22cf13012944f927fb971d0ad98be2fa540272
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+a76cc2633df38feca72f20156e7d9e4b074337f3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b8171d55469d16ef1db3f75078f604460617a94ae41a1d540abff5976e7fd04
[INFO] running `Command { std: "docker" "start" "-a" "5b8171d55469d16ef1db3f75078f604460617a94ae41a1d540abff5976e7fd04", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.38
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]    Compiling syn v1.0.92
[INFO] [stderr]    Compiling beef v0.5.1
[INFO] [stderr]    Compiling utf8-ranges v1.0.5
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling logos-derive v0.12.0
[INFO] [stderr]     Checking logos v0.12.0
[INFO] [stderr]     Checking cb-2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.71s
[INFO] running `Command { std: "docker" "inspect" "5b8171d55469d16ef1db3f75078f604460617a94ae41a1d540abff5976e7fd04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b8171d55469d16ef1db3f75078f604460617a94ae41a1d540abff5976e7fd04", kill_on_drop: false }`
[INFO] [stdout] 5b8171d55469d16ef1db3f75078f604460617a94ae41a1d540abff5976e7fd04