[INFO] fetching crate mdbook-open-on-git-xx 0.0.1...
[INFO] checking mdbook-open-on-git-xx-0.0.1 against master#f90b06d7fb00470177516c5881bcec0432cb4f24 for pr-94063
[INFO] extracting crate mdbook-open-on-git-xx 0.0.1 into /workspace/builds/worker-20/source
[INFO] validating manifest of crates.io crate mdbook-open-on-git-xx 0.0.1 on toolchain f90b06d7fb00470177516c5881bcec0432cb4f24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f90b06d7fb00470177516c5881bcec0432cb4f24" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mdbook-open-on-git-xx 0.0.1
[INFO] finished tweaking crates.io crate mdbook-open-on-git-xx 0.0.1
[INFO] tweaked toml for crates.io crate mdbook-open-on-git-xx 0.0.1 written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] crate crates.io crate mdbook-open-on-git-xx 0.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f90b06d7fb00470177516c5881bcec0432cb4f24" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+f90b06d7fb00470177516c5881bcec0432cb4f24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2c387ea503562c9e2f96b10ac2b3a0192e50535051377265eef16906a7a5375f
[INFO] running `Command { std: "docker" "start" "-a" "2c387ea503562c9e2f96b10ac2b3a0192e50535051377265eef16906a7a5375f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c387ea503562c9e2f96b10ac2b3a0192e50535051377265eef16906a7a5375f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c387ea503562c9e2f96b10ac2b3a0192e50535051377265eef16906a7a5375f", kill_on_drop: false }`
[INFO] [stdout] 2c387ea503562c9e2f96b10ac2b3a0192e50535051377265eef16906a7a5375f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+f90b06d7fb00470177516c5881bcec0432cb4f24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3a6679e0690bd4626cb6d85951330ba59bd3d25a3f95cdac6c29d5d99ced5d2
[INFO] running `Command { std: "docker" "start" "-a" "d3a6679e0690bd4626cb6d85951330ba59bd3d25a3f95cdac6c29d5d99ced5d2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling serde v1.0.105
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking smallvec v1.2.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling siphasher v0.3.2
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking utf-8 v0.7.5
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking modifier v0.1.0
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]     Checking sequence_trie v0.3.6
[INFO] [stderr]    Compiling pulldown-cmark v0.6.1
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking strum v0.15.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking glob v0.2.11
[INFO] [stderr]     Checking is-match v0.1.0
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking shlex v0.1.1
[INFO] [stderr]     Checking open v1.4.0
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling error-chain v0.12.2
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking futf v0.1.4
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking base64 v0.9.3
[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-1.0.105/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="std"' -C metadata=1642848925cbae7f -C extra-filename=-1642848925cbae7f --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=forbid --cfg ops_bound --cfg core_reverse --cfg de_boxed_c_str --cfg de_boxed_path --cfg de_rc_dst --cfg core_duration --cfg integer128 --cfg range_inclusive --cfg num_nonzero --cfg core_try_from --cfg num_nonzero_signed --cfg std_atomic64 --cfg std_atomic` (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" "d3a6679e0690bd4626cb6d85951330ba59bd3d25a3f95cdac6c29d5d99ced5d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3a6679e0690bd4626cb6d85951330ba59bd3d25a3f95cdac6c29d5d99ced5d2", kill_on_drop: false }`
[INFO] [stdout] d3a6679e0690bd4626cb6d85951330ba59bd3d25a3f95cdac6c29d5d99ced5d2