[INFO] cloning repository https://github.com/ctaggart/rustfmt_4132
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ctaggart/rustfmt_4132" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fctaggart%2Frustfmt_4132", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fctaggart%2Frustfmt_4132'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e483cd9dccc3e9c3a2810de7d9a30aaf318153fc
[INFO] testing ctaggart/rustfmt_4132 against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fctaggart%2Frustfmt_4132" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ctaggart/rustfmt_4132 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ctaggart/rustfmt_4132
[INFO] finished tweaking git repo https://github.com/ctaggart/rustfmt_4132
[INFO] tweaked toml for git repo https://github.com/ctaggart/rustfmt_4132 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/ctaggart/rustfmt_4132 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cargo_metadata v0.8.2
[INFO] [stderr]   Downloaded rustc-ap-rustc_lexer v654.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_ast_passes v654.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_parse v654.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_macros v654.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_attr v654.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_span v654.0.0
[INFO] [stderr]   Downloaded rustc-ap-serialize v654.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_feature v654.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_expand v654.0.0
[INFO] [stderr]   Downloaded termize v0.1.1
[INFO] [stderr]   Downloaded rustc-ap-arena v654.0.0
[INFO] [stderr]   Downloaded annotate-snippets v0.6.1
[INFO] [stderr]   Downloaded measureme v0.7.1
[INFO] [stderr]   Downloaded rustc-ap-rustc_fs_util v654.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_session v654.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_ast v654.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_ast_pretty v654.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_errors v654.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_target v654.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_data_structures v654.0.0
[INFO] [stderr]   Downloaded rustc-ap-graphviz v654.0.0
[INFO] [stderr]   Downloaded rustc-rayon v0.3.0
[INFO] [stderr]   Downloaded rustfmt-nightly v1.4.14
[INFO] [stderr]   Downloaded rustfmt-config_proc_macro v0.2.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_index v654.0.0
[INFO] [stderr]   Downloaded rustc-rayon-core v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f92713a29fdcc8f4b2eb915fdab1648d415eb987ea99032b2ce33c6b6b4b167a
[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" "f92713a29fdcc8f4b2eb915fdab1648d415eb987ea99032b2ce33c6b6b4b167a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f92713a29fdcc8f4b2eb915fdab1648d415eb987ea99032b2ce33c6b6b4b167a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f92713a29fdcc8f4b2eb915fdab1648d415eb987ea99032b2ce33c6b6b4b167a", kill_on_drop: false }`
[INFO] [stdout] f92713a29fdcc8f4b2eb915fdab1648d415eb987ea99032b2ce33c6b6b4b167a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "RUSTFLAGS=--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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef67863d1c9e18393043ceb961345f83a2f3b4b6dbd73254b23ff8c84ca65396
[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" "ef67863d1c9e18393043ceb961345f83a2f3b4b6dbd73254b23ff8c84ca65396", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling smallvec v1.3.0
[INFO] [stderr]    Compiling rustc-rayon-core v0.3.0
[INFO] [stderr]    Compiling rustc-ap-graphviz v654.0.0
[INFO] [stderr]    Compiling scoped-tls v1.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_ast v654.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_target v654.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_fs_util v654.0.0
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]    Compiling rustfmt-nightly v1.4.14
[INFO] [stderr]    Compiling diff v0.1.12
[INFO] [stderr]    Compiling rustc-workspace-hack v1.0.0
[INFO] [stderr]    Compiling bytecount v0.6.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[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-1.3.0/lib.rs:61:32
[INFO] [stdout]    |
[INFO] [stdout] 61 | #![cfg_attr(feature = "union", feature(untagged_unions))]
[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-1.3.0/lib.rs:63:37
[INFO] [stdout]    |
[INFO] [stdout] 63 | #![cfg_attr(feature = "may_dangle", feature(dropck_eyepatch))]
[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/rustc-ap-graphviz-654.0.0/lib.rs:278:1
[INFO] [stdout]     |
[INFO] [stdout] 278 | #![feature(rustc_private, nll)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling memoffset v0.5.4
[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-graphviz`
[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] [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: build failed
[INFO] running `Command { std: "docker" "inspect" "ef67863d1c9e18393043ceb961345f83a2f3b4b6dbd73254b23ff8c84ca65396", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef67863d1c9e18393043ceb961345f83a2f3b4b6dbd73254b23ff8c84ca65396", kill_on_drop: false }`
[INFO] [stdout] ef67863d1c9e18393043ceb961345f83a2f3b4b6dbd73254b23ff8c84ca65396