[INFO] crate ident 0.3.10 is already in cache
[INFO] extracting crate ident 0.3.10 into work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/ident/0.3.10
[INFO] extracting crate ident 0.3.10 into work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/reg/ident/0.3.10
[INFO] validating manifest of ident-0.3.10 on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ident-0.3.10 on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ident-0.3.10
[INFO] finished frobbing ident-0.3.10
[INFO] frobbed toml for ident-0.3.10 written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/ident/0.3.10/Cargo.toml
[INFO] started frobbing ident-0.3.10
[INFO] finished frobbing ident-0.3.10
[INFO] frobbed toml for ident-0.3.10 written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/reg/ident/0.3.10/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking ident-0.3.10 against master#5f9c0448dde167128d668da4555879f64e56af1d for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-4/master#5f9c0448dde167128d668da4555879f64e56af1d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/ident/0.3.10:/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" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 90cb478e64a789aa96c1c759255064e4d706591bd5f5a17c4df99a0672a604a3
[INFO] running `"docker" "start" "-a" "90cb478e64a789aa96c1c759255064e4d706591bd5f5a17c4df99a0672a604a3"`
[INFO] [stderr]     Checking ident v0.3.10 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `swap` is imported redundantly
[INFO] [stderr]   --> src/ident_collections.rs:59:13
[INFO] [stderr]    |
[INFO] [stderr] 6  | use std::mem::swap;
[INFO] [stderr]    |     -------------- the item `swap` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 59 |         use std::mem::swap;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `swap` is imported redundantly
[INFO] [stderr]   --> src/ident_collections.rs:59:13
[INFO] [stderr]    |
[INFO] [stderr] 6  | use std::mem::swap;
[INFO] [stderr]    |     -------------- the item `swap` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 59 |         use std::mem::swap;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `"docker" "inspect" "90cb478e64a789aa96c1c759255064e4d706591bd5f5a17c4df99a0672a604a3"`
[INFO] running `"docker" "rm" "-f" "90cb478e64a789aa96c1c759255064e4d706591bd5f5a17c4df99a0672a604a3"`
[INFO] [stdout] 90cb478e64a789aa96c1c759255064e4d706591bd5f5a17c4df99a0672a604a3