[INFO] cloning repository https://github.com/dbrgn/xc-bot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dbrgn/xc-bot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdbrgn%2Fxc-bot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdbrgn%2Fxc-bot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8e4a7de1b5f77130b72f9bc06e0c659365ccbd33
[INFO] documenting dbrgn/xc-bot against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdbrgn%2Fxc-bot" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dbrgn/xc-bot 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 git repo https://github.com/dbrgn/xc-bot
[INFO] finished tweaking git repo https://github.com/dbrgn/xc-bot
[INFO] tweaked toml for git repo https://github.com/dbrgn/xc-bot written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/dbrgn/xc-bot 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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] dfa60464d0662792f4e50f5b844304b7805f140fca31506a688d99b360709acd
[INFO] running `Command { std: "docker" "start" "-a" "dfa60464d0662792f4e50f5b844304b7805f140fca31506a688d99b360709acd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dfa60464d0662792f4e50f5b844304b7805f140fca31506a688d99b360709acd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfa60464d0662792f4e50f5b844304b7805f140fca31506a688d99b360709acd", kill_on_drop: false }`
[INFO] [stdout] dfa60464d0662792f4e50f5b844304b7805f140fca31506a688d99b360709acd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "RUSTDOCFLAGS=--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" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd2648cab7a3ab4eb3c8db71c206f44fb4dac6442d6d22d765ca63cb8424a1cb
[INFO] running `Command { std: "docker" "start" "-a" "bd2648cab7a3ab4eb3c8db71c206f44fb4dac6442d6d22d765ca63cb8424a1cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.91
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.65
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking futures-core v0.3.13
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking futures-sink v0.3.13
[INFO] [stderr]    Compiling lexical-core v0.7.5
[INFO] [stderr]     Checking futures-io v0.3.13
[INFO] [stderr]     Checking futures-task v0.3.13
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking ahash v0.4.7
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling encoding_rs v0.8.28
[INFO] [stderr]    Compiling whoami v1.1.1
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]    Compiling wyz v0.2.0
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling funty v1.1.0
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling httparse v1.3.5
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling unicode_categories v0.1.1
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking httpdate v0.3.2
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]    Compiling cpuid-bool v0.1.2
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]     Checking ipnet v2.3.0
[INFO] [stderr]    Compiling dotenv v0.15.0
[INFO] [stderr]     Checking bytemuck v1.5.1
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]    Compiling xc-bot v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking data-encoding v2.3.2
[INFO] [stderr]    Compiling tokio v1.4.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling ahash v0.6.3
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]     Checking sharded-slab v0.1.1
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking tinyvec v1.1.1
[INFO] [stderr]    Compiling futures-channel v0.3.13
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]     Checking http v0.2.3
[INFO] [stderr]    Compiling lock_api v0.4.2
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking ryu v1.0.5
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking crc32fast v1.2.1
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]     Checking tracing-log v0.1.2
[INFO] [stderr]    Compiling hashlink v0.6.0
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking unicode-normalization v0.1.17
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]     Checking bitvec v0.19.5
[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-0.6.23/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="default"' --cfg 'feature="unicode"' --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=5c8121566f39070a -C extra-filename=-5c8121566f39070a --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow` (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" "bd2648cab7a3ab4eb3c8db71c206f44fb4dac6442d6d22d765ca63cb8424a1cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd2648cab7a3ab4eb3c8db71c206f44fb4dac6442d6d22d765ca63cb8424a1cb", kill_on_drop: false }`
[INFO] [stdout] bd2648cab7a3ab4eb3c8db71c206f44fb4dac6442d6d22d765ca63cb8424a1cb
