[INFO] fetching crate ew 0.4.0...
[INFO] testing ew-0.4.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate ew 0.4.0 into /workspace/builds/worker-99/source
[INFO] validating manifest of crates.io crate ew 0.4.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ew 0.4.0
[INFO] finished tweaking crates.io crate ew 0.4.0
[INFO] tweaked toml for crates.io crate ew 0.4.0 written to /workspace/builds/worker-99/source/Cargo.toml
[INFO] crate crates.io crate ew 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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 ew-testfunc v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b08b35f7ed006c9bd2a0319ce6e283e989bcc0374aa6a28ae1dc72552dcb2121
[INFO] running `Command { std: "docker" "start" "-a" "b08b35f7ed006c9bd2a0319ce6e283e989bcc0374aa6a28ae1dc72552dcb2121", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b08b35f7ed006c9bd2a0319ce6e283e989bcc0374aa6a28ae1dc72552dcb2121", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b08b35f7ed006c9bd2a0319ce6e283e989bcc0374aa6a28ae1dc72552dcb2121", kill_on_drop: false }`
[INFO] [stdout] b08b35f7ed006c9bd2a0319ce6e283e989bcc0374aa6a28ae1dc72552dcb2121
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 09cc54b9b8b514357523de0d1c6466adfcb051a670b4a8b970e4d6bb99adff55
[INFO] running `Command { std: "docker" "start" "-a" "09cc54b9b8b514357523de0d1c6466adfcb051a670b4a8b970e4d6bb99adff55", 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]    Compiling libc v0.2.89
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling ew v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.34s
[INFO] running `Command { std: "docker" "inspect" "09cc54b9b8b514357523de0d1c6466adfcb051a670b4a8b970e4d6bb99adff55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09cc54b9b8b514357523de0d1c6466adfcb051a670b4a8b970e4d6bb99adff55", kill_on_drop: false }`
[INFO] [stdout] 09cc54b9b8b514357523de0d1c6466adfcb051a670b4a8b970e4d6bb99adff55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-99/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 661a3a99e3f98654e234ca7c66d44521c748043560e43116aaf2e31827737105
[INFO] running `Command { std: "docker" "start" "-a" "661a3a99e3f98654e234ca7c66d44521c748043560e43116aaf2e31827737105", kill_on_drop: false }`
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling ew-testfunc v0.1.0
[INFO] [stderr]    Compiling ew v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `ew`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name particleswarm_rastrigin_statistics_inertia --edition=2018 examples/particleswarm-rastrigin-statistics-inertia.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 -C metadata=e73ffcdd9cec3bda -C extra-filename=-e73ffcdd9cec3bda --out-dir /opt/rustwide/target/debug/examples -L dependency=/opt/rustwide/target/debug/deps --extern ew=/opt/rustwide/target/debug/deps/libew-6624f18354ad3581.rlib --extern ew_testfunc=/opt/rustwide/target/debug/deps/libew_testfunc-ca384232d279d46c.rlib --extern num=/opt/rustwide/target/debug/deps/libnum-0d30f19bb888e98e.rlib --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-e46c9431fc429766.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-3c7d05e70a055a4d.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" "661a3a99e3f98654e234ca7c66d44521c748043560e43116aaf2e31827737105", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "661a3a99e3f98654e234ca7c66d44521c748043560e43116aaf2e31827737105", kill_on_drop: false }`
[INFO] [stdout] 661a3a99e3f98654e234ca7c66d44521c748043560e43116aaf2e31827737105