[INFO] fetching crate margin 0.0.0...
[INFO] building margin-0.0.0 against try#615edd3ad1cf6871c977dc900317cb6c2070fd6b for pr-97334
[INFO] extracting crate margin 0.0.0 into /workspace/builds/worker-36/source
[INFO] validating manifest of crates.io crate margin 0.0.0 on toolchain 615edd3ad1cf6871c977dc900317cb6c2070fd6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+615edd3ad1cf6871c977dc900317cb6c2070fd6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate margin 0.0.0
[INFO] finished tweaking crates.io crate margin 0.0.0
[INFO] tweaked toml for crates.io crate margin 0.0.0 written to /workspace/builds/worker-36/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+615edd3ad1cf6871c977dc900317cb6c2070fd6b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+615edd3ad1cf6871c977dc900317cb6c2070fd6b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+615edd3ad1cf6871c977dc900317cb6c2070fd6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7cf2e281f00cf6f9ae9c070d26c6df8353385236cf986e5b73b718f2b55c2eca
[INFO] running `Command { std: "docker" "start" "-a" "7cf2e281f00cf6f9ae9c070d26c6df8353385236cf986e5b73b718f2b55c2eca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7cf2e281f00cf6f9ae9c070d26c6df8353385236cf986e5b73b718f2b55c2eca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cf2e281f00cf6f9ae9c070d26c6df8353385236cf986e5b73b718f2b55c2eca", kill_on_drop: false }`
[INFO] [stdout] 7cf2e281f00cf6f9ae9c070d26c6df8353385236cf986e5b73b718f2b55c2eca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+615edd3ad1cf6871c977dc900317cb6c2070fd6b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b293e146ca186c5d00eb133f4568cae751ced77336632a8bb43d8055522f73f
[INFO] running `Command { std: "docker" "start" "-a" "2b293e146ca186c5d00eb133f4568cae751ced77336632a8bb43d8055522f73f", kill_on_drop: false }`
[INFO] [stderr]    Compiling margin v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.71s
[INFO] running `Command { std: "docker" "inspect" "2b293e146ca186c5d00eb133f4568cae751ced77336632a8bb43d8055522f73f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b293e146ca186c5d00eb133f4568cae751ced77336632a8bb43d8055522f73f", kill_on_drop: false }`
[INFO] [stdout] 2b293e146ca186c5d00eb133f4568cae751ced77336632a8bb43d8055522f73f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+615edd3ad1cf6871c977dc900317cb6c2070fd6b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5aeb4c4599872d991012ef6c03d7d02c564284ae46836d1c0743248c74ccbcc
[INFO] running `Command { std: "docker" "start" "-a" "c5aeb4c4599872d991012ef6c03d7d02c564284ae46836d1c0743248c74ccbcc", kill_on_drop: false }`
[INFO] [stderr]    Compiling margin v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.34s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/margin-0cf4e289019c9653)
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "c5aeb4c4599872d991012ef6c03d7d02c564284ae46836d1c0743248c74ccbcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5aeb4c4599872d991012ef6c03d7d02c564284ae46836d1c0743248c74ccbcc", kill_on_drop: false }`
[INFO] [stdout] c5aeb4c4599872d991012ef6c03d7d02c564284ae46836d1c0743248c74ccbcc