[INFO] cloning repository https://github.com/daraghk/decision-tree-learner
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/daraghk/decision-tree-learner" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaraghk%2Fdecision-tree-learner", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaraghk%2Fdecision-tree-learner'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4eab5b5ef26e21fccc9e6ed722f31119ace15899
[INFO] building daraghk/decision-tree-learner against master#461e8078010433ff7de2db2aaae8a3cfb0847215 for pr-94962
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaraghk%2Fdecision-tree-learner" "/workspace/builds/worker-107/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-107/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/daraghk/decision-tree-learner on toolchain 461e8078010433ff7de2db2aaae8a3cfb0847215
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+461e8078010433ff7de2db2aaae8a3cfb0847215" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/daraghk/decision-tree-learner
[INFO] finished tweaking git repo https://github.com/daraghk/decision-tree-learner
[INFO] tweaked toml for git repo https://github.com/daraghk/decision-tree-learner written to /workspace/builds/worker-107/source/Cargo.toml
[INFO] crate git repo https://github.com/daraghk/decision-tree-learner already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+461e8078010433ff7de2db2aaae8a3cfb0847215" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /workspace/builds/worker-107/source/main/Cargo.toml
[INFO] [stderr] workspace: /workspace/builds/worker-107/source/Cargo.toml
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded half v1.8.1
[INFO] [stderr]   Downloaded arff v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+461e8078010433ff7de2db2aaae8a3cfb0847215" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dfacc9de927c2d88b260ab6ea302fcedb033e801d1e7a7a34f5afa133f555b0c
[INFO] running `Command { std: "docker" "start" "-a" "dfacc9de927c2d88b260ab6ea302fcedb033e801d1e7a7a34f5afa133f555b0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dfacc9de927c2d88b260ab6ea302fcedb033e801d1e7a7a34f5afa133f555b0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfacc9de927c2d88b260ab6ea302fcedb033e801d1e7a7a34f5afa133f555b0c", kill_on_drop: false }`
[INFO] [stdout] dfacc9de927c2d88b260ab6ea302fcedb033e801d1e7a7a34f5afa133f555b0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+461e8078010433ff7de2db2aaae8a3cfb0847215" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c624cee3f50117a3cde678a38eb517890cd5e1af0e34259a50e15361cac392e0
[INFO] running `Command { std: "docker" "start" "-a" "c624cee3f50117a3cde678a38eb517890cd5e1af0e34259a50e15361cac392e0", kill_on_drop: false }`
[INFO] [stderr] warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
[INFO] [stderr] package:   /opt/rustwide/workdir/main/Cargo.toml
[INFO] [stderr] workspace: /opt/rustwide/workdir/Cargo.toml
[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" "c624cee3f50117a3cde678a38eb517890cd5e1af0e34259a50e15361cac392e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c624cee3f50117a3cde678a38eb517890cd5e1af0e34259a50e15361cac392e0", kill_on_drop: false }`
[INFO] [stdout] c624cee3f50117a3cde678a38eb517890cd5e1af0e34259a50e15361cac392e0