[INFO] crate tar 0.4.20 is already in cache
[INFO] extracting crate tar 0.4.20 into work/ex/pr-59928/sources/master#df25d79a33b0c82b716699a75a41bfdc6089850a/reg/tar/0.4.20
[INFO] extracting crate tar 0.4.20 into work/ex/pr-59928/sources/try#424a4ae163d6517f301cd4048a4b5dd785be5b2f/reg/tar/0.4.20
[INFO] validating manifest of tar-0.4.20 on toolchain master#df25d79a33b0c82b716699a75a41bfdc6089850a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+df25d79a33b0c82b716699a75a41bfdc6089850a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tar-0.4.20 on toolchain try#424a4ae163d6517f301cd4048a4b5dd785be5b2f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+424a4ae163d6517f301cd4048a4b5dd785be5b2f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tar-0.4.20
[INFO] finished frobbing tar-0.4.20
[INFO] frobbed toml for tar-0.4.20 written to work/ex/pr-59928/sources/master#df25d79a33b0c82b716699a75a41bfdc6089850a/reg/tar/0.4.20/Cargo.toml
[INFO] started frobbing tar-0.4.20
[INFO] finished frobbing tar-0.4.20
[INFO] frobbed toml for tar-0.4.20 written to work/ex/pr-59928/sources/try#424a4ae163d6517f301cd4048a4b5dd785be5b2f/reg/tar/0.4.20/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+df25d79a33b0c82b716699a75a41bfdc6089850a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+424a4ae163d6517f301cd4048a4b5dd785be5b2f-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+df25d79a33b0c82b716699a75a41bfdc6089850a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+424a4ae163d6517f301cd4048a4b5dd785be5b2f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking tar-0.4.20 against master#df25d79a33b0c82b716699a75a41bfdc6089850a for pr-59928
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-59928/worker-6/master#df25d79a33b0c82b716699a75a41bfdc6089850a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-59928/sources/master#df25d79a33b0c82b716699a75a41bfdc6089850a/reg/tar/0.4.20:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+df25d79a33b0c82b716699a75a41bfdc6089850a-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a21c00a3f945913b68a2539e3365f6a2adb081f64daa7ccb928881398b475758
[INFO] running `"docker" "start" "-a" "a21c00a3f945913b68a2539e3365f6a2adb081f64daa7ccb928881398b475758"`
[INFO] [stderr]     Checking tar v0.4.20 (/opt/crater/workdir)
[INFO] [stderr] error: the item `xattr` is imported redundantly
[INFO] [stderr]    --> src/entry.rs:601:17
[INFO] [stderr]     |
[INFO] [stderr] 601 |             use xattr;
[INFO] [stderr]     |                 ^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:30:1
[INFO] [stderr]     |
[INFO] [stderr] 30  | extern crate xattr;
[INFO] [stderr]     | ------------------- the item `xattr` is already imported here
[INFO] [stderr]     |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]    --> src/lib.rs:22:24
[INFO] [stderr]     |
[INFO] [stderr] 22  | #![cfg_attr(test, deny(warnings))]
[INFO] [stderr]     |                        ^^^^^^^^
[INFO] [stderr]     = note: #[deny(unused_imports)] implied by #[deny(warnings)]
[INFO] [stderr] 
[INFO] [stderr] error: the item `libc` is imported redundantly
[INFO] [stderr]    --> src/header.rs:753:17
[INFO] [stderr]     |
[INFO] [stderr] 753 |             use libc;
[INFO] [stderr]     |                 ^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:26:1
[INFO] [stderr]     |
[INFO] [stderr] 26  | extern crate libc;
[INFO] [stderr]     | ------------------ the item `libc` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: the item `xattr` is imported redundantly
[INFO] [stderr]    --> src/entry.rs:601:17
[INFO] [stderr]     |
[INFO] [stderr] 601 |             use xattr;
[INFO] [stderr]     |                 ^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:30:1
[INFO] [stderr]     |
[INFO] [stderr] 30  | extern crate xattr;
[INFO] [stderr]     | ------------------- the item `xattr` is already imported here
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `libc` is imported redundantly
[INFO] [stderr]    --> src/header.rs:753:17
[INFO] [stderr]     |
[INFO] [stderr] 753 |             use libc;
[INFO] [stderr]     |                 ^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/lib.rs:26:1
[INFO] [stderr]     |
[INFO] [stderr] 26  | extern crate libc;
[INFO] [stderr]     | ------------------ the item `libc` is already imported here
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `tar`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "a21c00a3f945913b68a2539e3365f6a2adb081f64daa7ccb928881398b475758"`
[INFO] running `"docker" "rm" "-f" "a21c00a3f945913b68a2539e3365f6a2adb081f64daa7ccb928881398b475758"`
[INFO] [stdout] a21c00a3f945913b68a2539e3365f6a2adb081f64daa7ccb928881398b475758