[INFO] updating cached repository ThomasHertleif/cluster-heist
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ThomasHertleif/cluster-heist
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ThomasHertleif/cluster-heist" "work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/ThomasHertleif/cluster-heist"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/ThomasHertleif/cluster-heist'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ThomasHertleif/cluster-heist" "work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/ThomasHertleif/cluster-heist"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/ThomasHertleif/cluster-heist'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3bcf3cb67c37632d70f0628fed38a6ff82e939b8
[INFO] sha for GitHub repo ThomasHertleif/cluster-heist: 3bcf3cb67c37632d70f0628fed38a6ff82e939b8
[INFO] validating manifest of ThomasHertleif/cluster-heist on toolchain master#efe2f32a6b8217425f361ec7c206910c611c03ee
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ThomasHertleif/cluster-heist on toolchain try#78b0bd8441ef961f6475e3d47fe3bca38cb83432
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ThomasHertleif/cluster-heist
[INFO] finished frobbing ThomasHertleif/cluster-heist
[INFO] frobbed toml for ThomasHertleif/cluster-heist written to work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/ThomasHertleif/cluster-heist/Cargo.toml
[INFO] started frobbing ThomasHertleif/cluster-heist
[INFO] finished frobbing ThomasHertleif/cluster-heist
[INFO] frobbed toml for ThomasHertleif/cluster-heist written to work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/ThomasHertleif/cluster-heist/Cargo.toml
[INFO] crate ThomasHertleif/cluster-heist already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking ThomasHertleif/cluster-heist against master#efe2f32a6b8217425f361ec7c206910c611c03ee for pr-60039
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039/worker-7/master#efe2f32a6b8217425f361ec7c206910c611c03ee:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/ThomasHertleif/cluster-heist:/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" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 23b68cde36960fac270a7e23a6d664c68d9aec00ce3dc86fb2ce0e9981771db9
[INFO] running `"docker" "start" "-a" "23b68cde36960fac270a7e23a6d664c68d9aec00ce3dc86fb2ce0e9981771db9"`
[INFO] [stderr]     Checking net2 v0.2.32
[INFO] [stderr]     Checking filetime v0.1.15
[INFO] [stderr]     Checking simple-server v0.3.0
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]     Checking miow v0.1.5
[INFO] [stderr]     Checking mio v0.5.1
[INFO] [stderr]     Checking notify v4.0.3
[INFO] [stderr]     Checking cluster-heist v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `DirEntry`
[INFO] [stderr]   --> src/main.rs:60:25
[INFO] [stderr]    |
[INFO] [stderr] 60 |     use std::fs::{self, DirEntry};
[INFO] [stderr]    |                         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `DirEntry`
[INFO] [stderr]   --> src/main.rs:60:25
[INFO] [stderr]    |
[INFO] [stderr] 60 |     use std::fs::{self, DirEntry};
[INFO] [stderr]    |                         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     t.join();
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     t.join();
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.23s
[INFO] running `"docker" "inspect" "23b68cde36960fac270a7e23a6d664c68d9aec00ce3dc86fb2ce0e9981771db9"`
[INFO] running `"docker" "rm" "-f" "23b68cde36960fac270a7e23a6d664c68d9aec00ce3dc86fb2ce0e9981771db9"`
[INFO] [stdout] 23b68cde36960fac270a7e23a6d664c68d9aec00ce3dc86fb2ce0e9981771db9