[INFO] cloning repository https://github.com/manpat/skelet-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/manpat/skelet-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmanpat%2Fskelet-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmanpat%2Fskelet-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f1efd4c10efc2cc2389ed4fb0b534feb6bb168e3
[INFO] documenting manpat/skelet-rs 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%2Fmanpat%2Fskelet-rs" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/manpat/skelet-rs 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/manpat/skelet-rs
[INFO] finished tweaking git repo https://github.com/manpat/skelet-rs
[INFO] tweaked toml for git repo https://github.com/manpat/skelet-rs written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/manpat/skelet-rs 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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] badd2bad91ce4cf78e936018787f0117835fe4dd01388141ad682c3d837a6468
[INFO] running `Command { std: "docker" "start" "-a" "badd2bad91ce4cf78e936018787f0117835fe4dd01388141ad682c3d837a6468", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "badd2bad91ce4cf78e936018787f0117835fe4dd01388141ad682c3d837a6468", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "badd2bad91ce4cf78e936018787f0117835fe4dd01388141ad682c3d837a6468", kill_on_drop: false }`
[INFO] [stdout] badd2bad91ce4cf78e936018787f0117835fe4dd01388141ad682c3d837a6468
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 3392c3bc9f327ae2f7f621059bad2bd8c7fa6f2395e25b6b5d83a6e97fa4778e
[INFO] running `Command { std: "docker" "start" "-a" "3392c3bc9f327ae2f7f621059bad2bd8c7fa6f2395e25b6b5d83a6e97fa4778e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]     Checking smallvec v1.5.0
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling syn v1.0.52
[INFO] [stderr]    Compiling winit v0.23.0
[INFO] [stderr]    Compiling wayland-sys v0.28.2
[INFO] [stderr]    Compiling nom v6.0.1
[INFO] [stderr]     Checking andrew v0.3.1
[INFO] [stderr]    Compiling wayland-scanner v0.28.2
[INFO] [stderr]    Compiling gl v0.14.0
[INFO] [stderr]    Compiling wayland-client v0.28.2
[INFO] [stderr]    Compiling wayland-protocols v0.28.2
[INFO] [stderr]     Checking nix v0.18.0
[INFO] [stderr]     Checking net2 v0.2.36
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking x11-dl v2.18.5
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking backtrace v0.3.55
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking xcursor v0.3.3
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking common v0.1.1 (https://github.com/manpat/common-rs.git#1524e056)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/common-rs-f24099189d4075d5/1524e05/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_fn)]
[INFO] [stdout]   |            ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/common-rs-f24099189d4075d5/1524e05/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_fn)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/common-rs-f24099189d4075d5/1524e05/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(box_syntax)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/common-rs-f24099189d4075d5/1524e05/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(specialization)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/common-rs-f24099189d4075d5/1524e05/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(generators, generator_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/common-rs-f24099189d4075d5/1524e05/src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(const_fn_floating_point_arithmetic)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `common`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "3392c3bc9f327ae2f7f621059bad2bd8c7fa6f2395e25b6b5d83a6e97fa4778e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3392c3bc9f327ae2f7f621059bad2bd8c7fa6f2395e25b6b5d83a6e97fa4778e", kill_on_drop: false }`
[INFO] [stdout] 3392c3bc9f327ae2f7f621059bad2bd8c7fa6f2395e25b6b5d83a6e97fa4778e
