[INFO] cloning repository https://github.com/Summer-of-Rust/sor-lab-intro-williamdual
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Summer-of-Rust/sor-lab-intro-williamdual" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSummer-of-Rust%2Fsor-lab-intro-williamdual", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSummer-of-Rust%2Fsor-lab-intro-williamdual'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 636140e8fb76f951a32793aaf01a51b1d8acb19c
[INFO] checking Summer-of-Rust/sor-lab-intro-williamdual against master#bb89df6903539e7014b8db29bccd6a9ee9553122 for pr-121072
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSummer-of-Rust%2Fsor-lab-intro-williamdual" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Summer-of-Rust/sor-lab-intro-williamdual on toolchain bb89df6903539e7014b8db29bccd6a9ee9553122
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bb89df6903539e7014b8db29bccd6a9ee9553122" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Summer-of-Rust/sor-lab-intro-williamdual
[INFO] finished tweaking git repo https://github.com/Summer-of-Rust/sor-lab-intro-williamdual
[INFO] tweaked toml for git repo https://github.com/Summer-of-Rust/sor-lab-intro-williamdual written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Summer-of-Rust/sor-lab-intro-williamdual 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" "+bb89df6903539e7014b8db29bccd6a9ee9553122" "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 Summer-of-Rust/sor-lab-intro-williamdual against try#e2d5da3bc6e298ce5f33ab9bd4e47f6a307ec8d0 for pr-121072
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSummer-of-Rust%2Fsor-lab-intro-williamdual" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Summer-of-Rust/sor-lab-intro-williamdual on toolchain e2d5da3bc6e298ce5f33ab9bd4e47f6a307ec8d0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e2d5da3bc6e298ce5f33ab9bd4e47f6a307ec8d0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Summer-of-Rust/sor-lab-intro-williamdual
[INFO] finished tweaking git repo https://github.com/Summer-of-Rust/sor-lab-intro-williamdual
[INFO] tweaked toml for git repo https://github.com/Summer-of-Rust/sor-lab-intro-williamdual written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Summer-of-Rust/sor-lab-intro-williamdual 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" "+e2d5da3bc6e298ce5f33ab9bd4e47f6a307ec8d0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+e2d5da3bc6e298ce5f33ab9bd4e47f6a307ec8d0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 240b655c1e4da5e4280b89cf106f7f6638f240ddfce33659ce3f4b8961d11bac
[INFO] running `Command { std: "docker" "start" "-a" "240b655c1e4da5e4280b89cf106f7f6638f240ddfce33659ce3f4b8961d11bac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "240b655c1e4da5e4280b89cf106f7f6638f240ddfce33659ce3f4b8961d11bac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "240b655c1e4da5e4280b89cf106f7f6638f240ddfce33659ce3f4b8961d11bac", kill_on_drop: false }`
[INFO] [stdout] 240b655c1e4da5e4280b89cf106f7f6638f240ddfce33659ce3f4b8961d11bac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+e2d5da3bc6e298ce5f33ab9bd4e47f6a307ec8d0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff2b5a8bcc69771bf4b5b21522bd42915c31c7742ef8371abfcfb2b5904fbe67
[INFO] running `Command { std: "docker" "start" "-a" "ff2b5a8bcc69771bf4b5b21522bd42915c31c7742ef8371abfcfb2b5904fbe67", kill_on_drop: false }`
[INFO] [stderr]     Checking sor-lab-1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] running `Command { std: "docker" "inspect" "ff2b5a8bcc69771bf4b5b21522bd42915c31c7742ef8371abfcfb2b5904fbe67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff2b5a8bcc69771bf4b5b21522bd42915c31c7742ef8371abfcfb2b5904fbe67", kill_on_drop: false }`
[INFO] [stdout] ff2b5a8bcc69771bf4b5b21522bd42915c31c7742ef8371abfcfb2b5904fbe67