[INFO] updating cached repository harikb/aerate
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/harikb/aerate
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/harikb/aerate" "work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/harikb/aerate"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/harikb/aerate'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/harikb/aerate" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/harikb/aerate"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/harikb/aerate'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0c0810f3cce6886e17c6ffcd60f6c4c342eb17ff
[INFO] sha for GitHub repo harikb/aerate: 0c0810f3cce6886e17c6ffcd60f6c4c342eb17ff
[INFO] validating manifest of harikb/aerate on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of harikb/aerate on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing harikb/aerate
[INFO] finished frobbing harikb/aerate
[INFO] frobbed toml for harikb/aerate written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/harikb/aerate/Cargo.toml
[INFO] started frobbing harikb/aerate
[INFO] finished frobbing harikb/aerate
[INFO] frobbed toml for harikb/aerate written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/harikb/aerate/Cargo.toml
[INFO] crate harikb/aerate already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking harikb/aerate against master#e305df1846a6d985315917ae0c81b74af8b4e641 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-4/master#e305df1846a6d985315917ae0c81b74af8b4e641:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/harikb/aerate:/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" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c7cc6a8f11f52ec02c4e48442c7994ccdcab0a936ab5c93b1ab61578fea0a156
[INFO] running `"docker" "start" "-a" "c7cc6a8f11f52ec02c4e48442c7994ccdcab0a936ab5c93b1ab61578fea0a156"`
[INFO] [stderr]     Checking same-file v1.0.1
[INFO] [stderr]     Checking args v2.1.0
[INFO] [stderr]     Checking clap v2.29.2
[INFO] [stderr]     Checking rust-crypto v0.2.36
[INFO] [stderr]     Checking walkdir v2.0.1
[INFO] [stderr]     Checking aerate v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/checksum/check.rs:55:21
[INFO] [stderr]    |
[INFO] [stderr] 55 |                 let mut ifp = File::open(entry.path())?;
[INFO] [stderr]    |                     ----^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/checksum/common.rs:40:33
[INFO] [stderr]    |
[INFO] [stderr] 40 |                             let mut sz1: u64;
[INFO] [stderr]    |                                 ----^^^
[INFO] [stderr]    |                                 |
[INFO] [stderr]    |                                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/checksum/create.rs:78:29
[INFO] [stderr]    |
[INFO] [stderr] 78 |                         let mut ifp = File::open(entry.path())?;
[INFO] [stderr]    |                             ----^^^
[INFO] [stderr]    |                             |
[INFO] [stderr]    |                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/checksum/check.rs:55:21
[INFO] [stderr]    |
[INFO] [stderr] 55 |                 let mut ifp = File::open(entry.path())?;
[INFO] [stderr]    |                     ----^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/checksum/common.rs:40:33
[INFO] [stderr]    |
[INFO] [stderr] 40 |                             let mut sz1: u64;
[INFO] [stderr]    |                                 ----^^^
[INFO] [stderr]    |                                 |
[INFO] [stderr]    |                                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/checksum/create.rs:78:29
[INFO] [stderr]    |
[INFO] [stderr] 78 |                         let mut ifp = File::open(entry.path())?;
[INFO] [stderr]    |                             ----^^^
[INFO] [stderr]    |                             |
[INFO] [stderr]    |                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.27s
[INFO] running `"docker" "inspect" "c7cc6a8f11f52ec02c4e48442c7994ccdcab0a936ab5c93b1ab61578fea0a156"`
[INFO] running `"docker" "rm" "-f" "c7cc6a8f11f52ec02c4e48442c7994ccdcab0a936ab5c93b1ab61578fea0a156"`
[INFO] [stdout] c7cc6a8f11f52ec02c4e48442c7994ccdcab0a936ab5c93b1ab61578fea0a156