[INFO] cloning repository https://github.com/rust-lang/rust-central-station
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rust-lang/rust-central-station" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-lang%2Frust-central-station", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-lang%2Frust-central-station'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a2cba67189ffce196991d26f43ab5d9349796869
[INFO] checking rust-lang/rust-central-station against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-lang%2Frust-central-station" "/workspace/builds/worker-24/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-24/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rust-lang/rust-central-station 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/rust-lang/rust-central-station
[INFO] finished tweaking git repo https://github.com/rust-lang/rust-central-station
[INFO] tweaked toml for git repo https://github.com/rust-lang/rust-central-station written to /workspace/builds/worker-24/source/Cargo.toml
[INFO] crate git repo https://github.com/rust-lang/rust-central-station 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 cc v1.0.65
[INFO] [stderr]   Downloaded filetime v0.2.13
[INFO] [stderr]   Downloaded syn v1.0.51
[INFO] [stderr]   Downloaded curl v0.4.34
[INFO] [stderr]   Downloaded error-chain v0.5.0
[INFO] [stderr]   Downloaded backtrace v0.2.3
[INFO] [stderr]   Downloaded tokio-codec v0.1.2
[INFO] [stderr]   Downloaded memoffset v0.5.6
[INFO] [stderr]   Downloaded tokio-fs v0.1.7
[INFO] [stderr]   Downloaded handlebars v1.1.0
[INFO] [stderr]   Downloaded tokio-curl v0.1.11
[INFO] [stderr]   Downloaded futures v0.1.30
[INFO] [stderr]   Downloaded backtrace-sys v0.1.37
[INFO] [stderr]   Downloaded tokio-udp v0.1.6
[INFO] [stderr]   Downloaded mio-uds v0.6.8
[INFO] [stderr]   Downloaded tokio-uds v0.2.7
[INFO] [stderr]   Downloaded socket2 v0.3.17
[INFO] [stderr]   Downloaded winapi v0.3.7
[INFO] [stderr]   Downloaded rand_core v0.4.0
[INFO] [stderr]   Downloaded curl-sys v0.4.38+curl-7.73.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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] 408a7a9e245c3fc7cbf01158077eeba104ff71cfaeeec70ab3857a7cb1ff01aa
[INFO] running `Command { std: "docker" "start" "-a" "408a7a9e245c3fc7cbf01158077eeba104ff71cfaeeec70ab3857a7cb1ff01aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "408a7a9e245c3fc7cbf01158077eeba104ff71cfaeeec70ab3857a7cb1ff01aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "408a7a9e245c3fc7cbf01158077eeba104ff71cfaeeec70ab3857a7cb1ff01aa", kill_on_drop: false }`
[INFO] [stdout] 408a7a9e245c3fc7cbf01158077eeba104ff71cfaeeec70ab3857a7cb1ff01aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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] 1a6f46b9108b3c1559b0d5a99624f24d2ba318bbe77f2a1af3479021488ebb7f
[INFO] running `Command { std: "docker" "start" "-a" "1a6f46b9108b3c1559b0d5a99624f24d2ba318bbe77f2a1af3479021488ebb7f", kill_on_drop: false }`
[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" "1a6f46b9108b3c1559b0d5a99624f24d2ba318bbe77f2a1af3479021488ebb7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a6f46b9108b3c1559b0d5a99624f24d2ba318bbe77f2a1af3479021488ebb7f", kill_on_drop: false }`
[INFO] [stdout] 1a6f46b9108b3c1559b0d5a99624f24d2ba318bbe77f2a1af3479021488ebb7f