[INFO] fetching crate evcxr 0.12.0...
[INFO] testing evcxr-0.12.0 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate evcxr 0.12.0 into /workspace/builds/worker-54/source
[INFO] validating manifest of crates.io crate evcxr 0.12.0 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate evcxr 0.12.0
[INFO] finished tweaking crates.io crate evcxr 0.12.0
[INFO] tweaked toml for crates.io crate evcxr 0.12.0 written to /workspace/builds/worker-54/source/Cargo.toml
[INFO] crate crates.io crate evcxr 0.12.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8df7e4fec7c4f488c4580105de1a49edfcadc8ffaeadebe0722d3091d9eb5431
[INFO] running `Command { std: "docker" "start" "-a" "8df7e4fec7c4f488c4580105de1a49edfcadc8ffaeadebe0722d3091d9eb5431", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8df7e4fec7c4f488c4580105de1a49edfcadc8ffaeadebe0722d3091d9eb5431", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8df7e4fec7c4f488c4580105de1a49edfcadc8ffaeadebe0722d3091d9eb5431", kill_on_drop: false }`
[INFO] [stdout] 8df7e4fec7c4f488c4580105de1a49edfcadc8ffaeadebe0722d3091d9eb5431
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3731e4f78d0836be2b1bfb91e4f08769e163118bd5e9295e3420fd77454046dc
[INFO] running `Command { std: "docker" "start" "-a" "3731e4f78d0836be2b1bfb91e4f08769e163118bd5e9295e3420fd77454046dc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling text-size v1.1.0
[INFO] [stderr]    Compiling ra_ap_la-arena v0.0.76
[INFO] [stderr]    Compiling fst v0.4.7
[INFO] [stderr]    Compiling smol_str v0.1.18
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling drop_bomb v0.1.5
[INFO] [stderr]    Compiling dissimilar v1.0.3
[INFO] [stderr]    Compiling cov-mark v2.0.0-pre.1
[INFO] [stderr]    Compiling ra_ap_paths v0.0.76
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling ra_ap_limit v0.0.76
[INFO] [stderr]    Compiling anymap v0.12.1
[INFO] [stderr]    Compiling arrayvec v0.7.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling camino v1.0.5
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]    Compiling matches v0.1.9
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling unicode-bidi v0.3.7
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling anyhow v1.0.44
[INFO] [stderr]    Compiling cc v1.0.71
[INFO] [stderr]    Compiling home v0.5.3
[INFO] [stderr]    Compiling gimli v0.25.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling jod-thread v0.1.2
[INFO] [stderr]    Compiling dot v0.1.4
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling json v0.12.4
[INFO] [stderr]    Compiling evcxr_input v1.0.0
[INFO] [stderr]    Compiling instant v0.1.11
[INFO] [stderr]    Compiling libloading v0.7.1
[INFO] [stderr]    Compiling tracing-core v0.1.21
[INFO] [stderr]    Compiling rustc-ap-rustc_lexer v725.0.0
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling always-assert v0.1.2
[INFO] [stderr]    Compiling ena v0.14.0
[INFO] [stderr]    Compiling object v0.26.2
[INFO] [stderr] error: could not compile `object`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name object --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/object-0.26.2/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 --cfg 'feature="archive"' --cfg 'feature="coff"' --cfg 'feature="elf"' --cfg 'feature="macho"' --cfg 'feature="pe"' --cfg 'feature="read_core"' --cfg 'feature="unaligned"' -C metadata=536f69a579d446be -C extra-filename=-536f69a579d446be --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-e6bbee201eb478c9.rmeta --cap-lints allow --cap-lints=forbid` (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" "3731e4f78d0836be2b1bfb91e4f08769e163118bd5e9295e3420fd77454046dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3731e4f78d0836be2b1bfb91e4f08769e163118bd5e9295e3420fd77454046dc", kill_on_drop: false }`
[INFO] [stdout] 3731e4f78d0836be2b1bfb91e4f08769e163118bd5e9295e3420fd77454046dc