[INFO] fetching crate evcxr 0.11.0...
[INFO] testing evcxr-0.11.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate evcxr 0.11.0 into /workspace/builds/worker-51/source
[INFO] validating manifest of crates.io crate evcxr 0.11.0 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 evcxr 0.11.0
[INFO] finished tweaking crates.io crate evcxr 0.11.0
[INFO] tweaked toml for crates.io crate evcxr 0.11.0 written to /workspace/builds/worker-51/source/Cargo.toml
[INFO] crate crates.io crate evcxr 0.11.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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] 467570f8296bd6099fac2905b1f47fef3b76117f5ec76ddb36400e1ec600956d
[INFO] running `Command { std: "docker" "start" "-a" "467570f8296bd6099fac2905b1f47fef3b76117f5ec76ddb36400e1ec600956d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "467570f8296bd6099fac2905b1f47fef3b76117f5ec76ddb36400e1ec600956d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "467570f8296bd6099fac2905b1f47fef3b76117f5ec76ddb36400e1ec600956d", kill_on_drop: false }`
[INFO] [stdout] 467570f8296bd6099fac2905b1f47fef3b76117f5ec76ddb36400e1ec600956d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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] fc06245ecb080ead1085bac4c67fd13074062173e39245fba6717045b14fe8e2
[INFO] running `Command { std: "docker" "start" "-a" "fc06245ecb080ead1085bac4c67fd13074062173e39245fba6717045b14fe8e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling text-size v1.1.0
[INFO] [stderr]    Compiling fst v0.4.7
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling ra_ap_la-arena v0.0.66
[INFO] [stderr]    Compiling drop_bomb v0.1.5
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling arrayvec v0.7.1
[INFO] [stderr]    Compiling dissimilar v1.0.2
[INFO] [stderr]    Compiling cov-mark v2.0.0-pre.1
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling ra_ap_limit v0.0.66
[INFO] [stderr]    Compiling anymap v0.12.1
[INFO] [stderr]    Compiling scoped-tls v1.0.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling semver v1.0.3
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]    Compiling snap v1.0.5
[INFO] [stderr]    Compiling camino v1.0.4
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling jod-thread v0.1.2
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling home v0.5.3
[INFO] [stderr]    Compiling gimli v0.24.0
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling rustc-demangle v0.1.20
[INFO] [stderr]    Compiling dot v0.1.4
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling evcxr_input v1.0.0
[INFO] [stderr]    Compiling json v0.12.4
[INFO] [stderr]    Compiling instant v0.1.10
[INFO] [stderr]    Compiling libloading v0.7.0
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling rustc-ap-rustc_lexer v725.0.0
[INFO] [stderr]    Compiling tracing-core v0.1.18
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling always-assert v0.1.2
[INFO] [stderr]    Compiling perf-event-open-sys v1.0.1
[INFO] [stderr]    Compiling ena v0.14.0
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling inotify-sys v0.1.5
[INFO] [stderr]    Compiling object v0.25.3
[INFO] [stderr]    Compiling mio v0.7.13
[INFO] [stderr]    Compiling filetime v0.2.14
[INFO] [stderr]    Compiling memmap2 v0.3.0
[INFO] [stderr]    Compiling dirs-sys v0.3.6
[INFO] [stderr]    Compiling sig v1.0.0
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling ra_ap_stdx v0.0.66
[INFO] [stderr]    Compiling ra_ap_toolchain v0.0.66
[INFO] [stderr]    Compiling tinyvec v1.3.1
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling which v4.1.0
[INFO] [stderr]    Compiling dashmap v4.0.2
[INFO] [stderr]    Compiling expect-test v1.1.0
[INFO] [stderr]    Compiling perf-event v0.4.7
[INFO] [stderr]    Compiling inotify v0.9.3
[INFO] [stderr]    Compiling unicode-bidi v0.3.5
[INFO] [stderr]    Compiling form_urlencoded v1.0.1
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr] error: could not compile `num_cpus`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name num_cpus /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/num_cpus-1.13.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=69b489850d458ebd -C extra-filename=-69b489850d458ebd --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern libc=/opt/rustwide/target/debug/deps/liblibc-ef703b7b559de845.rmeta --cap-lints allow --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" "fc06245ecb080ead1085bac4c67fd13074062173e39245fba6717045b14fe8e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc06245ecb080ead1085bac4c67fd13074062173e39245fba6717045b14fe8e2", kill_on_drop: false }`
[INFO] [stdout] fc06245ecb080ead1085bac4c67fd13074062173e39245fba6717045b14fe8e2
