[INFO] updating cached repository klardotsh/souls
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/klardotsh/souls
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/klardotsh/souls" "work/ex/pr-57483/sources/master#2bde39b8edce6463e1c37f8a8082a875e7b536b1/gh/klardotsh/souls"`
[INFO] [stderr] Cloning into 'work/ex/pr-57483/sources/master#2bde39b8edce6463e1c37f8a8082a875e7b536b1/gh/klardotsh/souls'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/klardotsh/souls" "work/ex/pr-57483/sources/try#0d8b5d1f16bab9e975695518ff8705bdab9fe94c/gh/klardotsh/souls"`
[INFO] [stderr] Cloning into 'work/ex/pr-57483/sources/try#0d8b5d1f16bab9e975695518ff8705bdab9fe94c/gh/klardotsh/souls'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7778c262175d1dba5a2a979bd8ab36e66c7fb8de
[INFO] sha for GitHub repo klardotsh/souls: 7778c262175d1dba5a2a979bd8ab36e66c7fb8de
[INFO] validating manifest of klardotsh/souls on toolchain master#2bde39b8edce6463e1c37f8a8082a875e7b536b1
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+2bde39b8edce6463e1c37f8a8082a875e7b536b1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of klardotsh/souls on toolchain try#0d8b5d1f16bab9e975695518ff8705bdab9fe94c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0d8b5d1f16bab9e975695518ff8705bdab9fe94c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing klardotsh/souls
[INFO] finished frobbing klardotsh/souls
[INFO] frobbed toml for klardotsh/souls written to work/ex/pr-57483/sources/master#2bde39b8edce6463e1c37f8a8082a875e7b536b1/gh/klardotsh/souls/Cargo.toml
[INFO] started frobbing klardotsh/souls
[INFO] finished frobbing klardotsh/souls
[INFO] frobbed toml for klardotsh/souls written to work/ex/pr-57483/sources/try#0d8b5d1f16bab9e975695518ff8705bdab9fe94c/gh/klardotsh/souls/Cargo.toml
[INFO] crate klardotsh/souls has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+2bde39b8edce6463e1c37f8a8082a875e7b536b1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: Package `toml v0.3.1` does not have feature `serde`. It has a required dependency with that name, but only optional dependencies can be used as features. This is currently a warning to ease the transition, but it will become an error in the future.
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0d8b5d1f16bab9e975695518ff8705bdab9fe94c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: Package `toml v0.3.1` does not have feature `serde`. It has a required dependency with that name, but only optional dependencies can be used as features. This is currently a warning to ease the transition, but it will become an error in the future.
[INFO] checking klardotsh/souls against master#2bde39b8edce6463e1c37f8a8082a875e7b536b1 for pr-57483
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57483/worker-4/master#2bde39b8edce6463e1c37f8a8082a875e7b536b1:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57483/sources/master#2bde39b8edce6463e1c37f8a8082a875e7b536b1/gh/klardotsh/souls:/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" "+2bde39b8edce6463e1c37f8a8082a875e7b536b1-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 49a68e05e764654573f1809ce3b96a40ed71add20fe2b9163d8a2973018b4c3c
[INFO] running `"docker" "start" "-a" "49a68e05e764654573f1809ce3b96a40ed71add20fe2b9163d8a2973018b4c3c"`
[INFO] [stderr] warning: Package `toml v0.3.1` does not have feature `serde`. It has a required dependency with that name, but only optional dependencies can be used as features. This is currently a warning to ease the transition, but it will become an error in the future.
[INFO] [stderr]     Checking net2 v0.2.27
[INFO] [stderr]     Checking inotify v0.3.0
[INFO] [stderr]     Checking filetime v0.1.10
[INFO] [stderr]     Checking xattr v0.1.11
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking sha1 v0.1.1
[INFO] [stderr]     Checking base64 v0.4.1
[INFO] [stderr]     Checking toml v0.3.1
[INFO] [stderr]     Checking redis v0.5.4
[INFO] [stderr]     Checking chrono v0.3.0
[INFO] [stderr]     Checking tar v0.4.11
[INFO] [stderr]     Checking miow v0.1.5
[INFO] [stderr]     Checking mio v0.5.1
[INFO] [stderr]     Checking notify v4.0.1
[INFO] [stderr]     Checking souls v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]   --> src/bin/harvester.rs:70:9
[INFO] [stderr]    |
[INFO] [stderr] 70 |     let result: Result<usize, redis::RedisError> = redis_con.rpush("backlog", buf);
[INFO] [stderr]    |         ^^^^^^ help: consider using `_result` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]   --> src/bin/harvester.rs:70:9
[INFO] [stderr]    |
[INFO] [stderr] 70 |     let result: Result<usize, redis::RedisError> = redis_con.rpush("backlog", buf);
[INFO] [stderr]    |         ^^^^^^ help: consider using `_result` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/harvester.rs:73:23
[INFO] [stderr]    |
[INFO] [stderr] 73 | fn on_updated_package(mut path: &mut PathBuf, mapping: &HarvestMapping) {
[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/bin/harvester.rs:73:23
[INFO] [stderr]    |
[INFO] [stderr] 73 | fn on_updated_package(mut path: &mut PathBuf, mapping: &HarvestMapping) {
[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]     Finished dev [unoptimized + debuginfo] target(s) in 13.74s
[INFO] running `"docker" "inspect" "49a68e05e764654573f1809ce3b96a40ed71add20fe2b9163d8a2973018b4c3c"`
[INFO] running `"docker" "rm" "-f" "49a68e05e764654573f1809ce3b96a40ed71add20fe2b9163d8a2973018b4c3c"`
[INFO] [stdout] 49a68e05e764654573f1809ce3b96a40ed71add20fe2b9163d8a2973018b4c3c