[INFO] fetching crate tui-tree-widget 0.4.0...
[INFO] checking tui-tree-widget-0.4.0 against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] extracting crate tui-tree-widget 0.4.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate tui-tree-widget 0.4.0 on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tui-tree-widget 0.4.0
[INFO] finished tweaking crates.io crate tui-tree-widget 0.4.0
[INFO] tweaked toml for crates.io crate tui-tree-widget 0.4.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate tui-tree-widget 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f921b795a591ffb49457d9e3a9b2bd2153378d1bfa8e6fc79e8babec4d60b85a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f921b795a591ffb49457d9e3a9b2bd2153378d1bfa8e6fc79e8babec4d60b85a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f921b795a591ffb49457d9e3a9b2bd2153378d1bfa8e6fc79e8babec4d60b85a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f921b795a591ffb49457d9e3a9b2bd2153378d1bfa8e6fc79e8babec4d60b85a", kill_on_drop: false }`
[INFO] [stdout] f921b795a591ffb49457d9e3a9b2bd2153378d1bfa8e6fc79e8babec4d60b85a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d2b8bb035014a0919d2bede1463842b61cc8764507cb43303070359058622f5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7d2b8bb035014a0919d2bede1463842b61cc8764507cb43303070359058622f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Checking tui v0.14.0
[INFO] [stderr]     Checking tui-tree-widget v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.72s
[INFO] running `Command { std: "docker" "inspect" "7d2b8bb035014a0919d2bede1463842b61cc8764507cb43303070359058622f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d2b8bb035014a0919d2bede1463842b61cc8764507cb43303070359058622f5", kill_on_drop: false }`
[INFO] [stdout] 7d2b8bb035014a0919d2bede1463842b61cc8764507cb43303070359058622f5