[INFO] fetching crate once_cell 1.8.0...
[INFO] building once_cell-1.8.0 against try#d5c88c22807925c189328ef9d923c5d2b11a95b8+rustflags=-Zprofile-closures for pr-87066-3
[INFO] extracting crate once_cell 1.8.0 into /workspace/builds/worker-80/source
[INFO] validating manifest of crates.io crate once_cell 1.8.0 on toolchain d5c88c22807925c189328ef9d923c5d2b11a95b8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate once_cell 1.8.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate once_cell 1.8.0
[INFO] tweaked toml for crates.io crate once_cell 1.8.0 written to /workspace/builds/worker-80/source/Cargo.toml
[INFO] crate crates.io crate once_cell 1.8.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "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 cfg-if v0.1.5
[INFO] [stderr]   Downloaded aho-corasick v0.7.4
[INFO] [stderr]   Downloaded utf8-ranges v1.0.1
[INFO] [stderr]   Downloaded regex-syntax v0.6.9
[INFO] [stderr]   Downloaded ucd-util v0.1.4
[INFO] [stderr]   Downloaded regex v1.2.0
[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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2600ef8b7839e54bc92b843d2a35de720e3a5325c58eaaa06c574b78bf9bfc4f
[INFO] running `Command { std: "docker" "start" "-a" "2600ef8b7839e54bc92b843d2a35de720e3a5325c58eaaa06c574b78bf9bfc4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2600ef8b7839e54bc92b843d2a35de720e3a5325c58eaaa06c574b78bf9bfc4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2600ef8b7839e54bc92b843d2a35de720e3a5325c58eaaa06c574b78bf9bfc4f", kill_on_drop: false }`
[INFO] [stdout] 2600ef8b7839e54bc92b843d2a35de720e3a5325c58eaaa06c574b78bf9bfc4f
[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 -Zprofile-closures" "-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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a77a28d01a68cf1de3ff2076b04ae047da27d13122b2fbf17cc2d3d84c0d9a18
[INFO] running `Command { std: "docker" "start" "-a" "a77a28d01a68cf1de3ff2076b04ae047da27d13122b2fbf17cc2d3d84c0d9a18", kill_on_drop: false }`
[INFO] [stderr]    Compiling once_cell v1.8.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "a77a28d01a68cf1de3ff2076b04ae047da27d13122b2fbf17cc2d3d84c0d9a18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a77a28d01a68cf1de3ff2076b04ae047da27d13122b2fbf17cc2d3d84c0d9a18", kill_on_drop: false }`
[INFO] [stdout] a77a28d01a68cf1de3ff2076b04ae047da27d13122b2fbf17cc2d3d84c0d9a18
[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 -Zprofile-closures" "-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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 327511acaab63d3aeb2b990632721fb9eb338722b4999c544ed8eb05750154b7
[INFO] running `Command { std: "docker" "start" "-a" "327511acaab63d3aeb2b990632721fb9eb338722b4999c544ed8eb05750154b7", kill_on_drop: false }`
[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" "327511acaab63d3aeb2b990632721fb9eb338722b4999c544ed8eb05750154b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "327511acaab63d3aeb2b990632721fb9eb338722b4999c544ed8eb05750154b7", kill_on_drop: false }`
[INFO] [stdout] 327511acaab63d3aeb2b990632721fb9eb338722b4999c544ed8eb05750154b7