[INFO] cloning repository https://github.com/graders-rs/graders
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/graders-rs/graders" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgraders-rs%2Fgraders", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgraders-rs%2Fgraders'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b7ff9f6195041b2a2b1b4e0988b675d2c6c4651d
[INFO] documenting graders-rs/graders against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgraders-rs%2Fgraders" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/graders-rs/graders on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/graders-rs/graders
[INFO] finished tweaking git repo https://github.com/graders-rs/graders
[INFO] tweaked toml for git repo https://github.com/graders-rs/graders written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/graders-rs/graders already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d33b957954cef54ec9a45d01f09af83c181ab59e6bf79b151310fbf322f7f813
[INFO] running `Command { std: "docker" "start" "-a" "d33b957954cef54ec9a45d01f09af83c181ab59e6bf79b151310fbf322f7f813", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d33b957954cef54ec9a45d01f09af83c181ab59e6bf79b151310fbf322f7f813", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d33b957954cef54ec9a45d01f09af83c181ab59e6bf79b151310fbf322f7f813", kill_on_drop: false }`
[INFO] [stdout] d33b957954cef54ec9a45d01f09af83c181ab59e6bf79b151310fbf322f7f813
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b4da9b402652c8d2d088628a6d93f7dc4d6484cf68404456a0a6aa6a085aaa80
[INFO] running `Command { std: "docker" "start" "-a" "b4da9b402652c8d2d088628a6d93f7dc4d6484cf68404456a0a6aa6a085aaa80", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.117
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling futures-core v0.3.19
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]     Checking futures-io v0.3.19
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]     Checking futures-sink v0.3.19
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking cpufeatures v0.2.1
[INFO] [stderr]    Compiling futures-task v0.3.19
[INFO] [stderr]    Compiling futures-channel v0.3.19
[INFO] [stderr]    Compiling futures-util v0.3.19
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking cache-padded v1.2.0
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]    Compiling serde_json v1.0.78
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]     Checking event-listener v2.5.2
[INFO] [stderr]    Compiling parking_lot_core v0.9.0
[INFO] [stderr]     Checking yasna v0.5.0
[INFO] [stderr]     Checking cookie-factory v0.3.2
[INFO] [stderr]    Compiling httparse v1.5.1
[INFO] [stderr]     Checking async-task v4.1.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling zstd-safe v4.1.6+zstd.1.5.2
[INFO] [stderr]     Checking base64ct v1.0.1
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]    Compiling amq-protocol v7.0.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling time-macros v0.2.4
[INFO] [stderr]    Compiling lapin v2.0.0
[INFO] [stderr]     Checking num_threads v0.1.6
[INFO] [stderr]     Checking ipnet v2.3.1
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]     Checking is_executable v1.0.1
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]     Checking tracing-core v0.1.21
[INFO] [stderr]    Compiling nom v7.1.0
[INFO] [stderr]     Checking rustls-pemfile v0.2.1
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking spin v0.9.2
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking object v0.27.1
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking async-mutex v1.4.0
[INFO] [stderr] error: could not compile `object`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name object --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/object-0.27.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="archive"' --cfg 'feature="coff"' --cfg 'feature="elf"' --cfg 'feature="macho"' --cfg 'feature="pe"' --cfg 'feature="read_core"' --cfg 'feature="unaligned"' -C metadata=fa661c8e22b46f68 -C extra-filename=-fa661c8e22b46f68 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-ac6662fc63ce7061.rmeta --cap-lints allow` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b4da9b402652c8d2d088628a6d93f7dc4d6484cf68404456a0a6aa6a085aaa80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4da9b402652c8d2d088628a6d93f7dc4d6484cf68404456a0a6aa6a085aaa80", kill_on_drop: false }`
[INFO] [stdout] b4da9b402652c8d2d088628a6d93f7dc4d6484cf68404456a0a6aa6a085aaa80