[INFO] fetching crate mdbook-open-on-git-xx 0.0.1...
[INFO] checking mdbook-open-on-git-xx-0.0.1 against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] extracting crate mdbook-open-on-git-xx 0.0.1 into /workspace/builds/worker-85/source
[INFO] validating manifest of crates.io crate mdbook-open-on-git-xx 0.0.1 on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "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-85/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "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-85/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef312e8469dc4e1738bbd664965275b5f5a7d13feb2b9cb214f70ac40cd5e06c
[INFO] running `Command { std: "docker" "start" "-a" "ef312e8469dc4e1738bbd664965275b5f5a7d13feb2b9cb214f70ac40cd5e06c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef312e8469dc4e1738bbd664965275b5f5a7d13feb2b9cb214f70ac40cd5e06c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef312e8469dc4e1738bbd664965275b5f5a7d13feb2b9cb214f70ac40cd5e06c", kill_on_drop: false }`
[INFO] [stdout] ef312e8469dc4e1738bbd664965275b5f5a7d13feb2b9cb214f70ac40cd5e06c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7108a9bb3b10be7297c0b155faa6465a983675be20b88ca0f330d362d3a5277e
[INFO] running `Command { std: "docker" "start" "-a" "7108a9bb3b10be7297c0b155faa6465a983675be20b88ca0f330d362d3a5277e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling serde v1.0.105
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling siphasher v0.3.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking smallvec v1.2.0
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]     Checking utf-8 v0.7.5
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking modifier v0.1.0
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking sequence_trie v0.3.6
[INFO] [stderr]    Compiling pulldown-cmark v0.6.1
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking strum v0.15.0
[INFO] [stderr]     Checking glob v0.2.11
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking is-match v0.1.0
[INFO] [stderr]     Checking shlex v0.1.1
[INFO] [stderr]     Checking open v1.4.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking futf v0.1.4
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr] error: could not compile `regex-syntax`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name regex_syntax /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-syntax-0.6.17/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="unicode-age"' --cfg 'feature="unicode-bool"' --cfg 'feature="unicode-case"' --cfg 'feature="unicode-gencat"' --cfg 'feature="unicode-perl"' --cfg 'feature="unicode-script"' --cfg 'feature="unicode-segment"' -C metadata=c9f5991d2f9ce036 -C extra-filename=-c9f5991d2f9ce036 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --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" "7108a9bb3b10be7297c0b155faa6465a983675be20b88ca0f330d362d3a5277e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7108a9bb3b10be7297c0b155faa6465a983675be20b88ca0f330d362d3a5277e", kill_on_drop: false }`
[INFO] [stdout] 7108a9bb3b10be7297c0b155faa6465a983675be20b88ca0f330d362d3a5277e