[INFO] fetching crate rustfmt_lib 2.0.0-rc.2...
[INFO] testing rustfmt_lib-2.0.0-rc.2 against 1.60.0 for beta-1.61-1
[INFO] extracting crate rustfmt_lib 2.0.0-rc.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate rustfmt_lib 2.0.0-rc.2 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rustfmt_lib 2.0.0-rc.2
[INFO] finished tweaking crates.io crate rustfmt_lib 2.0.0-rc.2
[INFO] tweaked toml for crates.io crate rustfmt_lib 2.0.0-rc.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded psm v0.1.18
[INFO] [stderr]   Downloaded measureme v0.7.1
[INFO] [stderr]   Downloaded annotate-snippets v0.6.1
[INFO] [stderr]   Downloaded rustc-ap-rustc_fs_util v659.0.0
[INFO] [stderr]   Downloaded rustfmt-config_proc_macro v0.5.1
[INFO] [stderr]   Downloaded rustc-ap-rustc_lexer v659.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_attr v659.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_macros v659.0.0
[INFO] [stderr]   Downloaded rustc-ap-arena v659.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_index v659.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_span v659.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_ast_passes v659.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_ast_pretty v659.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_feature v659.0.0
[INFO] [stderr]   Downloaded rustc-ap-graphviz v659.0.0
[INFO] [stderr]   Downloaded rustc-ap-serialize v659.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_errors v659.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_session v659.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_ast v659.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_data_structures v659.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_target v659.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_parse v659.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_expand v659.0.0
[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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 893bdc1166650101a1454a06a33834f2857c5a933a68820dd7c5811533c8df54
[INFO] running `Command { std: "docker" "start" "-a" "893bdc1166650101a1454a06a33834f2857c5a933a68820dd7c5811533c8df54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "893bdc1166650101a1454a06a33834f2857c5a933a68820dd7c5811533c8df54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "893bdc1166650101a1454a06a33834f2857c5a933a68820dd7c5811533c8df54", kill_on_drop: false }`
[INFO] [stdout] 893bdc1166650101a1454a06a33834f2857c5a933a68820dd7c5811533c8df54
[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=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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e1338b6c3cb8a761803635a86daac0be0b9b1b231040c6a32a9d3d1f011bb210
[INFO] running `Command { std: "docker" "start" "-a" "e1338b6c3cb8a761803635a86daac0be0b9b1b231040c6a32a9d3d1f011bb210", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling rustc-rayon-core v0.3.2
[INFO] [stderr]    Compiling rustc-ap-graphviz v659.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_ast v659.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_target v659.0.0
[INFO] [stderr]    Compiling annotate-snippets v0.6.1
[INFO] [stderr]    Compiling rustc-ap-rustc_fs_util v659.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_attr v659.0.0
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling yansi-term v0.1.2
[INFO] [stderr]    Compiling bytecount v0.6.2
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling diff v0.1.12
[INFO] [stderr]    Compiling unicode_categories v0.1.1
[INFO] [stderr]    Compiling dunce v1.0.2
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling psm v0.1.18
[INFO] [stderr]    Compiling stacker v0.1.14
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling rustc-ap-rustc_lexer v659.0.0
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling thread_local v1.1.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling termize v0.1.1
[INFO] [stderr]    Compiling dirs-sys v0.3.7
[INFO] [stderr]    Compiling smallvec v0.6.14
[INFO] [stderr]    Compiling generic-array v0.12.4
[INFO] [stderr]    Compiling ena v0.14.0
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/smallvec-1.8.0/src/lib.rs:83:37
[INFO] [stdout]    |
[INFO] [stdout] 83 | #![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 `smallvec` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lock_api-0.3.4/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 stable release channel
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-graphviz-659.0.0/lib.rs:278:1
[INFO] [stdout]     |
[INFO] [stdout] 278 | #![feature(rustc_private, nll)]
[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] [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: build failed
[INFO] running `Command { std: "docker" "inspect" "e1338b6c3cb8a761803635a86daac0be0b9b1b231040c6a32a9d3d1f011bb210", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1338b6c3cb8a761803635a86daac0be0b9b1b231040c6a32a9d3d1f011bb210", kill_on_drop: false }`
[INFO] [stdout] e1338b6c3cb8a761803635a86daac0be0b9b1b231040c6a32a9d3d1f011bb210