[INFO] fetching crate procspawn 0.10.0...
[INFO] testing procspawn-0.10.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate procspawn 0.10.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate procspawn 0.10.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate procspawn 0.10.0
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate procspawn 0.10.0
[INFO] tweaked toml for crates.io crate procspawn 0.10.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate procspawn 0.10.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ade68a0c3e7dfb53ca8be97e4542b1144fd48c7b1f44b0a2a412a464bd942ff
[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" "0ade68a0c3e7dfb53ca8be97e4542b1144fd48c7b1f44b0a2a412a464bd942ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ade68a0c3e7dfb53ca8be97e4542b1144fd48c7b1f44b0a2a412a464bd942ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ade68a0c3e7dfb53ca8be97e4542b1144fd48c7b1f44b0a2a412a464bd942ff", kill_on_drop: false }`
[INFO] [stdout] 0ade68a0c3e7dfb53ca8be97e4542b1144fd48c7b1f44b0a2a412a464bd942ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab82609d0c8dfbe09f493f4312fd5dce182f9ee312cd3f0c250b3643fd6ee248
[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" "ab82609d0c8dfbe09f493f4312fd5dce182f9ee312cd3f0c250b3643fd6ee248", kill_on_drop: false }`
[INFO] [stderr]    Compiling backtrace v0.3.60
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling object v0.25.3
[INFO] [stderr]    Compiling findshlibs v0.8.0
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling ipc-channel v0.15.0
[INFO] [stderr]    Compiling procspawn v0.10.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.70s
[INFO] running `Command { std: "docker" "inspect" "ab82609d0c8dfbe09f493f4312fd5dce182f9ee312cd3f0c250b3643fd6ee248", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab82609d0c8dfbe09f493f4312fd5dce182f9ee312cd3f0c250b3643fd6ee248", kill_on_drop: false }`
[INFO] [stdout] ab82609d0c8dfbe09f493f4312fd5dce182f9ee312cd3f0c250b3643fd6ee248
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 538f2b78fba9d8d713be73139c4459ff103b608088eba3f6e3b04765f6ded713
[INFO] running `Command { std: "docker" "start" "-a" "538f2b78fba9d8d713be73139c4459ff103b608088eba3f6e3b04765f6ded713", kill_on_drop: false }`
[INFO] [stderr]    Compiling procspawn v0.10.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `procspawn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name procspawn --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test --cfg 'feature="backtrace"' --cfg 'feature="default"' --cfg 'feature="findshlibs"' --cfg 'feature="safe-shared-libraries"' -C metadata=29ff20270ef90a18 -C extra-filename=-29ff20270ef90a18 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern backtrace=/opt/rustwide/target/debug/deps/libbacktrace-7941d829f4118aab.rlib --extern findshlibs=/opt/rustwide/target/debug/deps/libfindshlibs-3b96228667286417.rlib --extern ipc_channel=/opt/rustwide/target/debug/deps/libipc_channel-8634ba8988fec6f0.rlib --extern libc=/opt/rustwide/target/debug/deps/liblibc-265ea9156ddd3fc7.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-3e5f996a9fcd97a5.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "538f2b78fba9d8d713be73139c4459ff103b608088eba3f6e3b04765f6ded713", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "538f2b78fba9d8d713be73139c4459ff103b608088eba3f6e3b04765f6ded713", kill_on_drop: false }`
[INFO] [stdout] 538f2b78fba9d8d713be73139c4459ff103b608088eba3f6e3b04765f6ded713