[INFO] cloning repository https://github.com/ChanceCtrl/fff
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ChanceCtrl/fff" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChanceCtrl%2Ffff", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChanceCtrl%2Ffff'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 940bf4b4bdce5f36bd344aab779ffdef084ebc5d
[INFO] checking ChanceCtrl/fff against master#c797096598b80ba4a40397ad7e91584fcd3df5f1 for pr-146377
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChanceCtrl%2Ffff" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ChanceCtrl/fff
[INFO] finished tweaking git repo https://github.com/ChanceCtrl/fff
[INFO] tweaked toml for git repo https://github.com/ChanceCtrl/fff written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ChanceCtrl/fff on toolchain c797096598b80ba4a40397ad7e91584fcd3df5f1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c797096598b80ba4a40397ad7e91584fcd3df5f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ChanceCtrl/fff 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" "+c797096598b80ba4a40397ad7e91584fcd3df5f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cc v1.2.9
[INFO] [stderr]   Downloaded clang v2.0.0
[INFO] [stderr]   Downloaded opencv-binding-generator v0.94.1
[INFO] [stderr]   Downloaded opencv v0.94.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+c797096598b80ba4a40397ad7e91584fcd3df5f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9331e355b7f074e4f5ddb1a659dcd814c7739ab55b5bddba94f65e63ee91e9ab
[INFO] running `Command { std: "docker" "start" "-a" "9331e355b7f074e4f5ddb1a659dcd814c7739ab55b5bddba94f65e63ee91e9ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9331e355b7f074e4f5ddb1a659dcd814c7739ab55b5bddba94f65e63ee91e9ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9331e355b7f074e4f5ddb1a659dcd814c7739ab55b5bddba94f65e63ee91e9ab", kill_on_drop: false }`
[INFO] [stdout] 9331e355b7f074e4f5ddb1a659dcd814c7739ab55b5bddba94f65e63ee91e9ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+c797096598b80ba4a40397ad7e91584fcd3df5f1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e16c723aca59197caa0e1be012342a76ba3475ab9452c933661796732c1e175c
[INFO] running `Command { std: "docker" "start" "-a" "e16c723aca59197caa0e1be012342a76ba3475ab9452c933661796732c1e175c", kill_on_drop: false }`
[INFO] [stderr]    Compiling clang-sys v1.8.1
[INFO] [stderr]    Compiling semver v1.0.24
[INFO] [stderr]    Compiling percent-encoding v2.3.1
[INFO] [stderr]    Compiling cc v1.2.9
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling clang v2.0.0
[INFO] [stderr]    Compiling opencv-binding-generator v0.94.1
[INFO] [stderr]    Compiling opencv v0.94.1
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "e16c723aca59197caa0e1be012342a76ba3475ab9452c933661796732c1e175c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e16c723aca59197caa0e1be012342a76ba3475ab9452c933661796732c1e175c", kill_on_drop: false }`
[INFO] [stdout] e16c723aca59197caa0e1be012342a76ba3475ab9452c933661796732c1e175c
