[INFO] cloning repository https://github.com/dandavison/trogon
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dandavison/trogon" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdandavison%2Ftrogon", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdandavison%2Ftrogon'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 802533e0c68875f808222e0ae0d57a57610bc37d
[INFO] documenting dandavison/trogon 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%2Fdandavison%2Ftrogon" "/workspace/builds/worker-76/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-76/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dandavison/trogon 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] removed /workspace/builds/worker-76/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/dandavison/trogon
[INFO] finished tweaking git repo https://github.com/dandavison/trogon
[INFO] tweaked toml for git repo https://github.com/dandavison/trogon written to /workspace/builds/worker-76/source/Cargo.toml
[INFO] crate git repo https://github.com/dandavison/trogon 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded inotify-sys v0.1.4
[INFO] [stderr]   Downloaded dtoa v0.4.7
[INFO] [stderr]   Downloaded rocket_contrib v0.4.6
[INFO] [stderr]   Downloaded filetime v0.2.13
[INFO] [stderr]   Downloaded dtoa-short v0.3.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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] e85de1e5fc8bf7e8f20829f1dff1b79cf8e896f1ba19505bdc005e0602e4bd69
[INFO] running `Command { std: "docker" "start" "-a" "e85de1e5fc8bf7e8f20829f1dff1b79cf8e896f1ba19505bdc005e0602e4bd69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e85de1e5fc8bf7e8f20829f1dff1b79cf8e896f1ba19505bdc005e0602e4bd69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e85de1e5fc8bf7e8f20829f1dff1b79cf8e896f1ba19505bdc005e0602e4bd69", kill_on_drop: false }`
[INFO] [stdout] e85de1e5fc8bf7e8f20829f1dff1b79cf8e896f1ba19505bdc005e0602e4bd69
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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] 6ebae022d095424a4dd087c232d70f3cc98c4dae206d453c110367eaf5e2e659
[INFO] running `Command { std: "docker" "start" "-a" "6ebae022d095424a4dd087c232d70f3cc98c4dae206d453c110367eaf5e2e659", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.56
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]     Checking futures-core v0.3.8
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling yansi v0.5.0
[INFO] [stderr]     Checking subtle v2.4.0
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking futures-sink v0.3.8
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking pin-project-lite v0.2.0
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking smallvec v1.5.1
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking futures-io v0.3.8
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling subtle v1.0.0
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking bytes v1.0.0
[INFO] [stderr]     Checking pin-project-lite v0.1.11
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling zeroize v1.2.0
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling openssl v0.10.32
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]    Compiling language-tags v0.2.2
[INFO] [stderr]    Compiling typeable v0.1.2
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]    Compiling base64 v0.12.3
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]     Checking dtoa v0.4.7
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]    Compiling state v0.4.2
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]     Checking utf-8 v0.7.5
[INFO] [stderr]    Compiling encoding_rs v0.8.26
[INFO] [stderr]     Checking httpdate v0.3.2
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking tower-service v0.3.0
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]     Checking thin-slice v0.1.1
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ego-tree v0.6.2
[INFO] [stderr]     Checking ipnet v2.3.0
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking tinyvec v1.1.0
[INFO] [stderr] error: could not compile `proc-macro2`
[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/proc-macro2-1.0.24/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="default"' --cfg 'feature="proc-macro"' -C metadata=288946a289e33aed -C extra-filename=-288946a289e33aed --out-dir /opt/rustwide/target/debug/build/proc-macro2-288946a289e33aed -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" "6ebae022d095424a4dd087c232d70f3cc98c4dae206d453c110367eaf5e2e659", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ebae022d095424a4dd087c232d70f3cc98c4dae206d453c110367eaf5e2e659", kill_on_drop: false }`
[INFO] [stdout] 6ebae022d095424a4dd087c232d70f3cc98c4dae206d453c110367eaf5e2e659
