[INFO] fetching crate tui-tree-widget 0.8.1...
[INFO] building tui-tree-widget-0.8.1 against master#461e8078010433ff7de2db2aaae8a3cfb0847215 for pr-94962
[INFO] extracting crate tui-tree-widget 0.8.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate tui-tree-widget 0.8.1 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 crates.io crate tui-tree-widget 0.8.1
[INFO] finished tweaking crates.io crate tui-tree-widget 0.8.1
[INFO] tweaked toml for crates.io crate tui-tree-widget 0.8.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate tui-tree-widget 0.8.1 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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:1ede1414886370302e694df474b9877c02906499f04c196936ce0973d30c5eaa" "/opt/rustwide/cargo-home/bin/cargo" "+461e8078010433ff7de2db2aaae8a3cfb0847215" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1545813ebc4de9facd724a02fcbc7bbc1bd52fe9d755a29861b2dded1f30b749
[INFO] running `Command { std: "docker" "start" "-a" "1545813ebc4de9facd724a02fcbc7bbc1bd52fe9d755a29861b2dded1f30b749", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1545813ebc4de9facd724a02fcbc7bbc1bd52fe9d755a29861b2dded1f30b749", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1545813ebc4de9facd724a02fcbc7bbc1bd52fe9d755a29861b2dded1f30b749", kill_on_drop: false }`
[INFO] [stdout] 1545813ebc4de9facd724a02fcbc7bbc1bd52fe9d755a29861b2dded1f30b749
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:1ede1414886370302e694df474b9877c02906499f04c196936ce0973d30c5eaa" "/opt/rustwide/cargo-home/bin/cargo" "+461e8078010433ff7de2db2aaae8a3cfb0847215" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7008637066c18841d1e95e96257001eee75981a2c608e2208f0c3cedccea323
[INFO] running `Command { std: "docker" "start" "-a" "e7008637066c18841d1e95e96257001eee75981a2c608e2208f0c3cedccea323", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.117
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling cassowary v0.3.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling termion v1.5.6
[INFO] [stderr]    Compiling tui v0.17.0
[INFO] [stderr]    Compiling tui-tree-widget v0.8.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.07s
[INFO] running `Command { std: "docker" "inspect" "e7008637066c18841d1e95e96257001eee75981a2c608e2208f0c3cedccea323", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7008637066c18841d1e95e96257001eee75981a2c608e2208f0c3cedccea323", kill_on_drop: false }`
[INFO] [stdout] e7008637066c18841d1e95e96257001eee75981a2c608e2208f0c3cedccea323
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:1ede1414886370302e694df474b9877c02906499f04c196936ce0973d30c5eaa" "/opt/rustwide/cargo-home/bin/cargo" "+461e8078010433ff7de2db2aaae8a3cfb0847215" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e2ab0f87762892239ece1c8ff62af62223c447e0756b36bc0ef20b3ef7effa1a
[INFO] running `Command { std: "docker" "start" "-a" "e2ab0f87762892239ece1c8ff62af62223c447e0756b36bc0ef20b3ef7effa1a", kill_on_drop: false }`
[INFO] [stderr]    Compiling tui-tree-widget v0.8.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.53s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/tui_tree_widget-336617f26ae72b46)
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "e2ab0f87762892239ece1c8ff62af62223c447e0756b36bc0ef20b3ef7effa1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2ab0f87762892239ece1c8ff62af62223c447e0756b36bc0ef20b3ef7effa1a", kill_on_drop: false }`
[INFO] [stdout] e2ab0f87762892239ece1c8ff62af62223c447e0756b36bc0ef20b3ef7effa1a