[INFO] crate tsukuyomi-macros 0.5.2 is already in cache
[INFO] checking tsukuyomi-macros-0.5.2 against master#914adf04af1c1a984707f778da3d04590c03d144 for pr-72331
[INFO] extracting crate tsukuyomi-macros 0.5.2 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate tsukuyomi-macros 0.5.2 on toolchain 914adf04af1c1a984707f778da3d04590c03d144
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate tsukuyomi-macros 0.5.2
[INFO] finished tweaking crates.io crate tsukuyomi-macros 0.5.2
[INFO] tweaked toml for crates.io crate tsukuyomi-macros 0.5.2 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+914adf04af1c1a984707f778da3d04590c03d144" "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] f5ceb271db8ba0f772d27c40020dc126402d080c1da57e2b6d968f368f3110dd
[INFO] running `"docker" "start" "-a" "f5ceb271db8ba0f772d27c40020dc126402d080c1da57e2b6d968f368f3110dd"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro2 v1.0.14
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling syn v1.0.23
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking gimli v0.21.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking object v0.19.0
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking tower-service v0.2.0
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking filetime v0.2.10
[INFO] [stderr]     Checking ryu v1.0.4
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking tsukuyomi-service v0.1.0
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking cookie v0.11.2
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking addr2line v0.12.1
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]     Checking backtrace v0.3.48
[INFO] [stderr]     Checking tsukuyomi-macros v0.5.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr] error: unused extern crate
[INFO] [stderr]  --> src/lib.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | extern crate proc_macro;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove it
[INFO] [stderr]   |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]  --> src/lib.rs:4:71
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![deny(nonstandard_style, rust_2018_idioms, rust_2018_compatibility, unused)]
[INFO] [stderr]   |                                                                       ^^^^^^
[INFO] [stderr]   = note: `#[deny(unused_extern_crates)]` implied by `#[deny(unused)]`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `tsukuyomi-macros`.
[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" "f5ceb271db8ba0f772d27c40020dc126402d080c1da57e2b6d968f368f3110dd"`
[INFO] running `"docker" "rm" "-f" "f5ceb271db8ba0f772d27c40020dc126402d080c1da57e2b6d968f368f3110dd"`
[INFO] [stdout] f5ceb271db8ba0f772d27c40020dc126402d080c1da57e2b6d968f368f3110dd