[INFO] cloning repository https://github.com/osa1/ghc-prof-compare
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/osa1/ghc-prof-compare" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fosa1%2Fghc-prof-compare", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fosa1%2Fghc-prof-compare'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f88efc26969b0c0fae74dbaad35c34cd94332ed9
[INFO] documenting osa1/ghc-prof-compare 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%2Fosa1%2Fghc-prof-compare" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/osa1/ghc-prof-compare 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/osa1/ghc-prof-compare
[INFO] finished tweaking git repo https://github.com/osa1/ghc-prof-compare
[INFO] tweaked toml for git repo https://github.com/osa1/ghc-prof-compare written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/osa1/ghc-prof-compare 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 9af8e0ae19121a03c1a8cd198044158a9b0ac7b0441a3d9205f62ba5f9283800
[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" "9af8e0ae19121a03c1a8cd198044158a9b0ac7b0441a3d9205f62ba5f9283800", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9af8e0ae19121a03c1a8cd198044158a9b0ac7b0441a3d9205f62ba5f9283800", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9af8e0ae19121a03c1a8cd198044158a9b0ac7b0441a3d9205f62ba5f9283800", kill_on_drop: false }`
[INFO] [stdout] 9af8e0ae19121a03c1a8cd198044158a9b0ac7b0441a3d9205f62ba5f9283800
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 198eff954ef6a95072c37499c1da979354d9d9d183f6336cfbeeb91f5ad4de9e
[INFO] running `Command { std: "docker" "start" "-a" "198eff954ef6a95072c37499c1da979354d9d9d183f6336cfbeeb91f5ad4de9e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]     Checking regex-syntax v0.6.16
[INFO] [stderr]     Checking utf8parse v0.1.1
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking rustyline v6.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking serde v1.0.104
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]     Checking ghc-utils v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting ghc-utils v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> bin/obj_loc.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | #![feature(or_patterns)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]    |
[INFO] [stdout]    = help: the feature `or_patterns` has been stable since 1.53.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `ghc-utils`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name obj_loc bin/obj_loc.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern ansi_term=/opt/rustwide/target/debug/deps/libansi_term-fd7abddf7181542f.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-9c3e61dbf4d85c6d.rmeta --extern ghc_utils=/opt/rustwide/target/debug/deps/libghc_utils-6519539d40c88ee9.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-acd7d23482fe8b54.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-cbed3e4f136bae3f.rmeta --extern rustyline=/opt/rustwide/target/debug/deps/librustyline-38997adad48db13a.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-1051be067e43e266.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-fe655cc76a0e7be5.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unresolved link to `<file extension>`
[INFO] [stdout]  --> bin/fs_compare.rs:1:31
[INFO] [stdout]   |
[INFO] [stdout] 1 | //! fs-compare <dir1> <dir2> [<file extension>]
[INFO] [stdout]   |                               ^^^^^^^^^^^^^^^^ missing type for generic parameters
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "198eff954ef6a95072c37499c1da979354d9d9d183f6336cfbeeb91f5ad4de9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "198eff954ef6a95072c37499c1da979354d9d9d183f6336cfbeeb91f5ad4de9e", kill_on_drop: false }`
[INFO] [stdout] 198eff954ef6a95072c37499c1da979354d9d9d183f6336cfbeeb91f5ad4de9e
