[INFO] fetching crate task-hookrs 0.6.0...
[INFO] checking task-hookrs-0.6.0 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate task-hookrs 0.6.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate task-hookrs 0.6.0 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate task-hookrs 0.6.0
[INFO] finished tweaking crates.io crate task-hookrs 0.6.0
[INFO] tweaked toml for crates.io crate task-hookrs 0.6.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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] 8b80dfa10d5e4d69a2393cb081fa1a65fa5a4421b9839a839b7af5ffeee37e9d
[INFO] running `"docker" "start" "-a" "8b80dfa10d5e4d69a2393cb081fa1a65fa5a4421b9839a839b7af5ffeee37e9d"`
[INFO] [stderr]    Compiling derive_builder v0.6.0
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]    Compiling darling_core v0.6.3
[INFO] [stderr]    Compiling darling_macro v0.6.3
[INFO] [stderr]    Compiling darling v0.6.3
[INFO] [stderr]    Compiling derive_builder_core v0.3.0
[INFO] [stderr]     Checking task-hookrs v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: the item `env_logger` is imported redundantly
[INFO] [stderr]    --> src/task.rs:816:13
[INFO] [stderr]     |
[INFO] [stderr] 816 |         use env_logger;
[INFO] [stderr]     |             ^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:59:1
[INFO] [stderr]     |
[INFO] [stderr] 59  | extern crate env_logger;
[INFO] [stderr]     | ------------------------ the item `env_logger` is already imported here
[INFO] [stderr]     |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]    --> src/lib.rs:40:5
[INFO] [stderr]     |
[INFO] [stderr] 40  |     unused_imports,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `task-hookrs`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "8b80dfa10d5e4d69a2393cb081fa1a65fa5a4421b9839a839b7af5ffeee37e9d"`
[INFO] running `"docker" "rm" "-f" "8b80dfa10d5e4d69a2393cb081fa1a65fa5a4421b9839a839b7af5ffeee37e9d"`
[INFO] [stdout] 8b80dfa10d5e4d69a2393cb081fa1a65fa5a4421b9839a839b7af5ffeee37e9d