[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] testing dustlang/rustfmt against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdustlang%2Frustfmt" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dustlang/rustfmt on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6/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-6/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f6b3330fc0de7378372e2009ac855018a5acd421a738201945fefd4e8e7e98c
[INFO] running `Command { std: "docker" "start" "-a" "4f6b3330fc0de7378372e2009ac855018a5acd421a738201945fefd4e8e7e98c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f6b3330fc0de7378372e2009ac855018a5acd421a738201945fefd4e8e7e98c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f6b3330fc0de7378372e2009ac855018a5acd421a738201945fefd4e8e7e98c", kill_on_drop: false }`
[INFO] [stdout] 4f6b3330fc0de7378372e2009ac855018a5acd421a738201945fefd4e8e7e98c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=forbid" "-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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff56a0bc279ce4489a693a75f49f5012b006aa9fb5df2906ebe5dcbacbc003e6
[INFO] running `Command { std: "docker" "start" "-a" "ff56a0bc279ce4489a693a75f49f5012b006aa9fb5df2906ebe5dcbacbc003e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.17
[INFO] [stderr]    Compiling syn v1.0.24
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling cc v1.0.54
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling rustc-rayon-core v0.3.1
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling arrayvec v0.5.1
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_graphviz v711.0.0
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling scoped-tls v1.0.0
[INFO] [stderr]    Compiling yansi-term v0.1.1
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling rustc-ap-rustc_fs_util v711.0.0
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling anyhow v1.0.31
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling rustfmt-nightly v2.0.0-rc.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling rustc-workspace-hack v1.0.0
[INFO] [stderr]    Compiling dunce v1.0.0
[INFO] [stderr]    Compiling diff v0.1.12
[INFO] [stderr]    Compiling instant v0.1.7
[INFO] [stderr]    Compiling rustc-ap-rustc_lexer v711.0.0
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling lock_api v0.4.1
[INFO] [stderr]    Compiling tracing-core v0.1.15
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling perf-event-open-sys v1.0.1
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling jobserver v0.1.21
[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] [stderr]    Compiling termize v0.1.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling bstr v0.2.13
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling parking_lot_core v0.8.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.12
[INFO] [stderr]    Compiling annotate-snippets v0.8.0
[INFO] [stderr]    Compiling regex v1.3.7
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lock_api`
[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" "ff56a0bc279ce4489a693a75f49f5012b006aa9fb5df2906ebe5dcbacbc003e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff56a0bc279ce4489a693a75f49f5012b006aa9fb5df2906ebe5dcbacbc003e6", kill_on_drop: false }`
[INFO] [stdout] ff56a0bc279ce4489a693a75f49f5012b006aa9fb5df2906ebe5dcbacbc003e6