[INFO] updating cached repository https://github.com/c-o-l-o-r/egg
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 96e6658bd0aad5b0a00f61b78d6a6b5353103dc4
[INFO] checking c-o-l-o-r/egg against beta-2019-10-27 for pr-65897
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fc-o-l-o-r%2Fegg" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/c-o-l-o-r/egg on toolchain beta-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/c-o-l-o-r/egg
[INFO] finished tweaking git repo https://github.com/c-o-l-o-r/egg
[INFO] tweaked toml for git repo https://github.com/c-o-l-o-r/egg written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/c-o-l-o-r/egg already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=allow" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-10-27" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b9591a9c3ba0792642a627c055bb4722280a03f0274a4e2b685fd7e34f0e3bf5
[INFO] running `"docker" "start" "-a" "b9591a9c3ba0792642a627c055bb4722280a03f0274a4e2b685fd7e34f0e3bf5"`
[INFO] [stderr]    Compiling serde v1.0.89
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling cranelift-entity v0.26.0
[INFO] [stderr]     Checking wasmparser v0.22.1
[INFO] [stderr]     Checking wasmparser v0.23.0
[INFO] [stderr]    Compiling cmake v0.1.37
[INFO] [stderr]     Checking errno v0.2.4
[INFO] [stderr]     Checking nix v0.12.0
[INFO] [stderr]     Checking page_size v0.4.1
[INFO] [stderr]     Checking nix v0.13.0
[INFO] [stderr]    Compiling raw-cpuid v6.1.0
[INFO] [stderr]     Checking backtrace v0.3.14
[INFO] [stderr]    Compiling serde_derive v1.0.89
[INFO] [stderr]     Checking digest v0.8.0
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.26.0
[INFO] [stderr]     Checking cranelift-bforest v0.26.0
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]    Compiling wabt-sys v0.5.4
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking blake2b_simd v0.4.1
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]    Compiling cranelift-codegen v0.26.0
[INFO] [stderr]     Checking rayon v1.0.3
[INFO] [stderr] error: could not compile `serde_derive`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name serde_derive /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_derive-1.0.89/src/lib.rs --color never --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C debuginfo=2 --cfg 'feature="default"' -C metadata=889735323fc90632 -C extra-filename=-889735323fc90632 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-2c0ef3b823f9a021.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-e60195879ae9df3e.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-c15c7336a8e74ce0.rlib --cap-lints allow --cap-lints=allow` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `serde`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name serde /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde-1.0.89/src/lib.rs --color never --crate-type lib --emit=dep-info,metadata -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="rc"' --cfg 'feature="std"' -C metadata=c71c990c374410d3 -C extra-filename=-c71c990c374410d3 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=allow --cfg ops_bound --cfg core_reverse --cfg de_boxed_c_str --cfg de_rc_dst --cfg core_duration --cfg integer128 --cfg range_inclusive --cfg num_nonzero` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `serde`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name serde /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde-1.0.89/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="rc"' --cfg 'feature="std"' -C metadata=abf4042e7d9afe99 -C extra-filename=-abf4042e7d9afe99 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=allow --cfg ops_bound --cfg core_reverse --cfg de_boxed_c_str --cfg de_rc_dst --cfg core_duration --cfg integer128 --cfg range_inclusive --cfg num_nonzero` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "b9591a9c3ba0792642a627c055bb4722280a03f0274a4e2b685fd7e34f0e3bf5"`
[INFO] running `"docker" "rm" "-f" "b9591a9c3ba0792642a627c055bb4722280a03f0274a4e2b685fd7e34f0e3bf5"`
[INFO] [stdout] b9591a9c3ba0792642a627c055bb4722280a03f0274a4e2b685fd7e34f0e3bf5