[INFO] cloning repository https://github.com/dustlang/rustfmt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dustlang/rustfmt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdustlang%2Frustfmt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdustlang%2Frustfmt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4bd5e4eddeb2d122ac47b5754fa2a3608cb23d3c
[INFO] documenting dustlang/rustfmt 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%2Fdustlang%2Frustfmt" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dustlang/rustfmt 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-0/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/dustlang/rustfmt
[INFO] finished tweaking git repo https://github.com/dustlang/rustfmt
[INFO] tweaked toml for git repo https://github.com/dustlang/rustfmt written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/dustlang/rustfmt 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]  Downloading crates ...
[INFO] [stderr]   Downloaded annotate-snippets v0.8.0
[INFO] [stderr]   Downloaded ignore v0.4.15
[INFO] [stderr]   Downloaded rustc-rayon-core v0.3.1
[INFO] [stderr]   Downloaded rustc-rayon v0.3.1
[INFO] [stderr]   Downloaded tracing-core v0.1.15
[INFO] [stderr]   Downloaded dunce v1.0.0
[INFO] [stderr]   Downloaded cargo_metadata v0.11.1
[INFO] [stderr]   Downloaded yansi-term v0.1.1
[INFO] [stderr]   Downloaded measureme v9.1.0
[INFO] [stderr]   Downloaded psm v0.1.8
[INFO] [stderr]   Downloaded unicode_categories v0.1.1
[INFO] [stderr]   Downloaded stacker v0.1.12
[INFO] [stderr]   Downloaded indexmap v1.5.2
[INFO] [stderr]   Downloaded termize v0.1.1
[INFO] [stderr]   Downloaded rustc-workspace-hack v1.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_graphviz v711.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_lexer v711.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_arena v711.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_fs_util v711.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_attr v711.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_ast_pretty v711.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_lint_defs v711.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_index v711.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_macros v711.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_feature v711.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_serialize v711.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_errors v711.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_span v711.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_ast_passes v711.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_session v711.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_data_structures v711.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_expand v711.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_ast v711.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_target v711.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_parse v711.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] afb80e5b5134abfb766794ac606d9eb2816d42a1576d09d22ac268f631894f26
[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" "afb80e5b5134abfb766794ac606d9eb2816d42a1576d09d22ac268f631894f26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "afb80e5b5134abfb766794ac606d9eb2816d42a1576d09d22ac268f631894f26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afb80e5b5134abfb766794ac606d9eb2816d42a1576d09d22ac268f631894f26", kill_on_drop: false }`
[INFO] [stdout] afb80e5b5134abfb766794ac606d9eb2816d42a1576d09d22ac268f631894f26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] dc6214ad26f113ca5ece70f30b542e38fae84503e81cee1ba22b60cfd85645aa
[INFO] running `Command { std: "docker" "start" "-a" "dc6214ad26f113ca5ece70f30b542e38fae84503e81cee1ba22b60cfd85645aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.24
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling rustc-rayon-core v0.3.1
[INFO] [stderr]     Checking rustc-ap-rustc_graphviz v711.0.0
[INFO] [stderr]     Checking yansi-term v0.1.1
[INFO] [stderr]     Checking rustc-ap-rustc_fs_util v711.0.0
[INFO] [stderr]    Compiling rustfmt-nightly v2.0.0-rc.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking dunce v1.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling indexmap v1.5.2
[INFO] [stderr]    Compiling psm v0.1.8
[INFO] [stderr]    Compiling stacker v0.1.12
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]     Checking rustc-ap-rustc_lexer v711.0.0
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking perf-event-open-sys v1.0.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_graphviz-711.0.0/src/lib.rs:278:1
[INFO] [stdout]     |
[INFO] [stdout] 278 | #![feature(nll)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lock_api-0.4.1/src/lib.rs:91:42
[INFO] [stdout]    |
[INFO] [stdout] 91 | #![cfg_attr(feature = "nightly", 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 beta release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lock_api-0.4.1/src/lib.rs:91:34
[INFO] [stdout]    |
[INFO] [stdout] 91 | #![cfg_attr(feature = "nightly", feature(const_fn))]
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/smallvec-1.6.1/src/lib.rs:76:37
[INFO] [stdout]    |
[INFO] [stdout] 76 | #![cfg_attr(feature = "may_dangle", feature(dropck_eyepatch))]
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^
[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 E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustc-ap-rustc_graphviz` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 2 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] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "dc6214ad26f113ca5ece70f30b542e38fae84503e81cee1ba22b60cfd85645aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc6214ad26f113ca5ece70f30b542e38fae84503e81cee1ba22b60cfd85645aa", kill_on_drop: false }`
[INFO] [stdout] dc6214ad26f113ca5ece70f30b542e38fae84503e81cee1ba22b60cfd85645aa
