[INFO] crate rustfmt_fn 0.1.0 is already in cache
[INFO] checking rustfmt_fn-0.1.0 against try#4662032ab74cd44d423120d08d251dfead4914a0 for pr-72788
[INFO] extracting crate rustfmt_fn 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate rustfmt_fn 0.1.0 on toolchain 4662032ab74cd44d423120d08d251dfead4914a0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+4662032ab74cd44d423120d08d251dfead4914a0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rustfmt_fn 0.1.0
[INFO] finished tweaking crates.io crate rustfmt_fn 0.1.0
[INFO] tweaked toml for crates.io crate rustfmt_fn 0.1.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+4662032ab74cd44d423120d08d251dfead4914a0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+4662032ab74cd44d423120d08d251dfead4914a0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustfmt-nightly v1.4.15
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+4662032ab74cd44d423120d08d251dfead4914a0" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 06c9ad8b141b6af93faa4f2d1fe86e70301c187d9dcb4f2548b1a7cf6ad53113
[INFO] running `"docker" "start" "-a" "06c9ad8b141b6af93faa4f2d1fe86e70301c187d9dcb4f2548b1a7cf6ad53113"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]    Compiling rustfmt-nightly v1.4.15
[INFO] [stderr]     Checking annotate-snippets v0.6.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]    Compiling rustfmt-config_proc_macro v0.2.0
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking cargo_metadata v0.8.2
[INFO] [stderr]     Checking measureme v0.7.1
[INFO] [stderr]     Checking rustc-ap-rustc_data_structures v659.0.0
[INFO] [stderr]    Compiling structopt-derive v0.4.7
[INFO] [stderr]     Checking rustc-ap-arena v659.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_span v659.0.0
[INFO] [stderr]     Checking structopt v0.3.14
[INFO] [stderr]     Checking rustc-ap-rustc_ast v659.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_feature v659.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_errors v659.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_target v659.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_ast_pretty v659.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_session v659.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_attr v659.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_parse v659.0.0
[INFO] [stderr] error: environment variable `CFG_RELEASE_CHANNEL` not defined
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_attr-659.0.0/builtin.rs:655:27
[INFO] [stderr]     |
[INFO] [stderr] 655 |             let channel = env!("CFG_RELEASE_CHANNEL");
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: environment variable `CFG_RELEASE` not defined
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_attr-659.0.0/builtin.rs:657:48
[INFO] [stderr]     |
[INFO] [stderr] 657 |             let rustc_version = Version::parse(env!("CFG_RELEASE")).unwrap();
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `rustc-ap-rustc_attr`.
[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 `"docker" "inspect" "06c9ad8b141b6af93faa4f2d1fe86e70301c187d9dcb4f2548b1a7cf6ad53113"`
[INFO] running `"docker" "rm" "-f" "06c9ad8b141b6af93faa4f2d1fe86e70301c187d9dcb4f2548b1a7cf6ad53113"`
[INFO] [stdout] 06c9ad8b141b6af93faa4f2d1fe86e70301c187d9dcb4f2548b1a7cf6ad53113