[INFO] cloning repository https://github.com/shenek/ucelofka
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shenek/ucelofka" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshenek%2Fucelofka", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshenek%2Fucelofka'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f8171175bb84e782b1bca68f91e49e00d3351d31
[INFO] checking shenek/ucelofka against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshenek%2Fucelofka" "/workspace/builds/worker-80/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-80/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shenek/ucelofka on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/shenek/ucelofka
[INFO] finished tweaking git repo https://github.com/shenek/ucelofka
[INFO] tweaked toml for git repo https://github.com/shenek/ucelofka written to /workspace/builds/worker-80/source/Cargo.toml
[INFO] crate git repo https://github.com/shenek/ucelofka already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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 remove_dir_all v0.6.1
[INFO] [stderr]   Downloaded seahash v4.1.0
[INFO] [stderr]   Downloaded test-case v1.1.0
[INFO] [stderr]   Downloaded fluent-syntax v0.11.0
[INFO] [stderr]   Downloaded fluent v0.15.0
[INFO] [stderr]   Downloaded sass-sys v0.4.21
[INFO] [stderr]   Downloaded surf v2.1.0
[INFO] [stderr]   Downloaded nipper v0.1.8
[INFO] [stderr]   Downloaded ouroboros_macro v0.8.0
[INFO] [stderr]   Downloaded fluent-bundle v0.15.0
[INFO] [stderr]   Downloaded open v1.4.0
[INFO] [stderr]   Downloaded html2text v0.2.1
[INFO] [stderr]   Downloaded ouroboros v0.8.0
[INFO] [stderr]   Downloaded async-channel v1.6.0
[INFO] [stderr]   Downloaded signal-hook v0.3.4
[INFO] [stderr]   Downloaded http-client v6.3.1
[INFO] [stderr]   Downloaded async-h1 v2.3.1
[INFO] [stderr]   Downloaded trunk v0.8.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6bcbedb61efb5eefc7c6d079c46088848514b7c20bed136f6073217cff62ac4a
[INFO] running `Command { std: "docker" "start" "-a" "6bcbedb61efb5eefc7c6d079c46088848514b7c20bed136f6073217cff62ac4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6bcbedb61efb5eefc7c6d079c46088848514b7c20bed136f6073217cff62ac4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bcbedb61efb5eefc7c6d079c46088848514b7c20bed136f6073217cff62ac4a", kill_on_drop: false }`
[INFO] [stdout] 6bcbedb61efb5eefc7c6d079c46088848514b7c20bed136f6073217cff62ac4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d8641558f1a6acde41db375fb159592922bc6a45c7ea953367ed8f5a86749ab6
[INFO] running `Command { std: "docker" "start" "-a" "d8641558f1a6acde41db375fb159592922bc6a45c7ea953367ed8f5a86749ab6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: failed to create jobserver
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to increase jobserver pipe capacity from 4096 to 8192; jobserver otherwise might deadlock
[INFO] running `Command { std: "docker" "inspect" "d8641558f1a6acde41db375fb159592922bc6a45c7ea953367ed8f5a86749ab6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8641558f1a6acde41db375fb159592922bc6a45c7ea953367ed8f5a86749ab6", kill_on_drop: false }`
[INFO] [stdout] d8641558f1a6acde41db375fb159592922bc6a45c7ea953367ed8f5a86749ab6