[INFO] cloning repository https://github.com/chrisdickinson/mdn-cli
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chrisdickinson/mdn-cli" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrisdickinson%2Fmdn-cli", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrisdickinson%2Fmdn-cli'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c7afb6c1782457501a3a842119e135300b1ccbc2
[INFO] documenting chrisdickinson/mdn-cli against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrisdickinson%2Fmdn-cli" "/workspace/builds/worker-27/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-27/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chrisdickinson/mdn-cli on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/chrisdickinson/mdn-cli
[INFO] finished tweaking git repo https://github.com/chrisdickinson/mdn-cli
[INFO] tweaked toml for git repo https://github.com/chrisdickinson/mdn-cli written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] crate git repo https://github.com/chrisdickinson/mdn-cli already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aa7f61be2f415782752d2c620ec5ff8514164bb7b3694113692519b37dc899a1
[INFO] running `Command { std: "docker" "start" "-a" "aa7f61be2f415782752d2c620ec5ff8514164bb7b3694113692519b37dc899a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa7f61be2f415782752d2c620ec5ff8514164bb7b3694113692519b37dc899a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa7f61be2f415782752d2c620ec5ff8514164bb7b3694113692519b37dc899a1", kill_on_drop: false }`
[INFO] [stdout] aa7f61be2f415782752d2c620ec5ff8514164bb7b3694113692519b37dc899a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 559d66ed1cefe1f826cae03f996dbf36cdc2feb413432e64c6a15a984de838b3
[INFO] running `Command { std: "docker" "start" "-a" "559d66ed1cefe1f826cae03f996dbf36cdc2feb413432e64c6a15a984de838b3", 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] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.43
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]    Compiling serde_json v1.0.58
[INFO] [stderr]     Checking futures-core v0.3.6
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]     Checking pin-project-lite v0.1.10
[INFO] [stderr]     Checking futures-io v0.3.6
[INFO] [stderr]     Checking subtle v2.3.0
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking fastrand v1.4.0
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling pin-project-internal v0.4.26
[INFO] [stderr]     Checking tinyvec v0.3.4
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]    Compiling const_fn v0.4.2
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking async-task v4.0.2
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking encoding_index_tests v0.1.4
[INFO] [stderr]     Checking vec-arena v1.0.0
[INFO] [stderr]     Checking dtoa v0.4.6
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]    Compiling curl v0.4.33
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]    Compiling anyhow v1.0.33
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling isahc v0.9.10
[INFO] [stderr]     Checking data-encoding v2.3.0
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]    Compiling http-types v2.5.0
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking xml-rs v0.8.3
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking infer v0.2.3
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]    Compiling encoding_rs v0.8.24
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking std_prelude v0.2.12
[INFO] [stderr]     Checking thin-slice v0.1.1
[INFO] [stderr]     Checking wild v2.0.4
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking shell-words v1.0.0
[INFO] [stderr]     Checking ego-tree v0.6.2
[INFO] [stderr]     Checking urlencoding v1.1.1
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking form_urlencoded v1.0.0
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking encoding-index-singlebyte v1.20141219.5
[INFO] [stderr]     Checking encoding-index-japanese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-tradchinese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-korean v1.20141219.5
[INFO] [stderr]     Checking encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]     Checking async-mutex v1.4.0
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking line-wrap v0.1.1
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name build_script_build --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.43/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' -C metadata=f2c47d466456e4c3 -C extra-filename=-f2c47d466456e4c3 --out-dir /opt/rustwide/target/debug/build/syn-f2c47d466456e4c3 -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" "559d66ed1cefe1f826cae03f996dbf36cdc2feb413432e64c6a15a984de838b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "559d66ed1cefe1f826cae03f996dbf36cdc2feb413432e64c6a15a984de838b3", kill_on_drop: false }`
[INFO] [stdout] 559d66ed1cefe1f826cae03f996dbf36cdc2feb413432e64c6a15a984de838b3
