[INFO] cloning repository https://github.com/rust-lang-nursery/rustfmt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rust-lang-nursery/rustfmt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-lang-nursery%2Frustfmt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-lang-nursery%2Frustfmt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1d6002ae3887536578e87b17935a83b94953a8d8
[INFO] documenting rust-lang-nursery/rustfmt 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%2Frust-lang-nursery%2Frustfmt" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rust-lang-nursery/rustfmt 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] removed /workspace/builds/worker-5/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/rust-lang-nursery/rustfmt
[INFO] finished tweaking git repo https://github.com/rust-lang-nursery/rustfmt
[INFO] tweaked toml for git repo https://github.com/rust-lang-nursery/rustfmt written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/rust-lang-nursery/rustfmt 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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 97c7463cce5d602c79152a854de160ab1a8ef52a27a07fd3d8ce1d6c67d33027
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "97c7463cce5d602c79152a854de160ab1a8ef52a27a07fd3d8ce1d6c67d33027", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97c7463cce5d602c79152a854de160ab1a8ef52a27a07fd3d8ce1d6c67d33027", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97c7463cce5d602c79152a854de160ab1a8ef52a27a07fd3d8ce1d6c67d33027", kill_on_drop: false }`
[INFO] [stdout] 97c7463cce5d602c79152a854de160ab1a8ef52a27a07fd3d8ce1d6c67d33027
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] dc961d5c4b03e202aed9c2ffe0af789742201d8c7362ec161db07d02150ca30d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "dc961d5c4b03e202aed9c2ffe0af789742201d8c7362ec161db07d02150ca30d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.65
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]    Compiling rustfmt-nightly v1.4.37 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking yansi-term v0.1.2
[INFO] [stderr]     Checking bytecount v0.6.2
[INFO] [stderr]     Checking diff v0.1.11
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]     Checking semver-parser v0.10.2
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking anyhow v1.0.25
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking annotate-snippets v0.8.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]     Checking globset v0.4.6
[INFO] [stderr]     Checking env_logger v0.8.1
[INFO] [stderr]     Checking ignore v0.4.17
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.11
[INFO] [stderr]    Compiling thiserror-impl v1.0.6
[INFO] [stderr]    Compiling rustfmt-config_proc_macro v0.2.0 (/opt/rustwide/workdir/config_proc_macro)
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]    Compiling proc-macro-error v0.4.11
[INFO] [stderr]     Checking thiserror v1.0.6
[INFO] [stderr]    Compiling structopt-derive v0.4.4
[INFO] [stderr]     Checking structopt v0.3.11
[INFO] [stderr]     Checking serde v1.0.126
[INFO] [stderr]     Checking semver v0.11.0
[INFO] [stderr]     Checking cargo-platform v0.1.1
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking toml v0.5.3
[INFO] [stderr]     Checking cargo_metadata v0.12.3
[INFO] [stderr]  Documenting rustfmt-nightly v1.4.37 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `rustc_ast`
[INFO] [stdout]   --> src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | extern crate rustc_ast;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `rustfmt-nightly`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name rustfmt_nightly src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="cargo-fmt"' --cfg 'feature="default"' --cfg 'feature="rustfmt-format-diff"' --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern annotate_snippets=/opt/rustwide/target/debug/deps/libannotate_snippets-bd495f62b4c6259d.rmeta --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-c2a8dfdc06e3379d.rmeta --extern bytecount=/opt/rustwide/target/debug/deps/libbytecount-99a0c591a43d5926.rmeta --extern cargo_metadata=/opt/rustwide/target/debug/deps/libcargo_metadata-fe295d4068bbd011.rmeta --extern derive_new=/opt/rustwide/target/debug/deps/libderive_new-b3588b785fab52e7.so --extern diff=/opt/rustwide/target/debug/deps/libdiff-1274d4e815d27e43.rmeta --extern dirs=/opt/rustwide/target/debug/deps/libdirs-2f2c54d775fb5c2c.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-1785543c800e5da0.rmeta --extern getopts=/opt/rustwide/target/debug/deps/libgetopts-91512fd93d3c3a68.rmeta --extern ignore=/opt/rustwide/target/debug/deps/libignore-952eba009c9a4307.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-0afb4b0f5d1f045c.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-acd7d23482fe8b54.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-f8abb66ffc16068c.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-64a526cf55638d0b.rmeta --extern rustc_workspace_hack=/opt/rustwide/target/debug/deps/librustc_workspace_hack-cd69959e5925b6e5.rmeta --extern rustfmt_config_proc_macro=/opt/rustwide/target/debug/deps/librustfmt_config_proc_macro-ca1894494ea7ef31.so --extern serde=/opt/rustwide/target/debug/deps/libserde-098ef49db42e1231.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-dbfb968e08f1f548.rmeta --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-16f0715f3a985154.rmeta --extern term=/opt/rustwide/target/debug/deps/libterm-b5affe426e1345b3.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-709464c349f8e4ce.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-425624b3ab07d67d.rmeta --extern unicode_segmentation=/opt/rustwide/target/debug/deps/libunicode_segmentation-7df306539200d65a.rmeta --extern unicode_width=/opt/rustwide/target/debug/deps/libunicode_width-c8bc5ad539d09cd6.rmeta --extern unicode_categories=/opt/rustwide/target/debug/deps/libunicode_categories-cd41d3b7ff673702.rmeta --cap-lints=warn --crate-version 1.4.37` (exit status: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0463]: can't find crate for `rustc_ast`
[INFO] [stdout]   --> src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | extern crate rustc_ast;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "dc961d5c4b03e202aed9c2ffe0af789742201d8c7362ec161db07d02150ca30d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc961d5c4b03e202aed9c2ffe0af789742201d8c7362ec161db07d02150ca30d", kill_on_drop: false }`
[INFO] [stdout] dc961d5c4b03e202aed9c2ffe0af789742201d8c7362ec161db07d02150ca30d
