[INFO] updating cached repository deecewan/dotter
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/deecewan/dotter
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/deecewan/dotter" "work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/deecewan/dotter"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/deecewan/dotter'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/deecewan/dotter" "work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/deecewan/dotter"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/deecewan/dotter'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1827754b09963a3e90ead18dee84b10ab8ca1f15
[INFO] sha for GitHub repo deecewan/dotter: 1827754b09963a3e90ead18dee84b10ab8ca1f15
[INFO] validating manifest of deecewan/dotter on toolchain master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of deecewan/dotter on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing deecewan/dotter
[INFO] finished frobbing deecewan/dotter
[INFO] frobbed toml for deecewan/dotter written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/deecewan/dotter/Cargo.toml
[INFO] started frobbing deecewan/dotter
[INFO] finished frobbing deecewan/dotter
[INFO] frobbed toml for deecewan/dotter written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/deecewan/dotter/Cargo.toml
[INFO] crate deecewan/dotter already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking deecewan/dotter against try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b for pr-59199
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59199/worker-4/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/deecewan/dotter:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 9157a6472dcc5e88b47e1b401141786410656be00b4227df3aee01074267339f
[INFO] running `"docker" "start" "-a" "9157a6472dcc5e88b47e1b401141786410656be00b4227df3aee01074267339f"`
[INFO] [stderr]    Compiling rayon-core v1.0.2
[INFO] [stderr]    Compiling deque v0.3.2
[INFO] [stderr]     Checking untrusted v0.5.0
[INFO] [stderr]    Compiling num_cpus v1.5.1
[INFO] [stderr]     Checking toml v0.4.1
[INFO] [stderr]     Checking clap v2.24.2
[INFO] [stderr]    Compiling rayon v0.7.1
[INFO] [stderr]    Compiling ring v0.11.0
[INFO] [stderr]     Checking dotter v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `open_in_place`
[INFO] [stderr]  --> src/secure.rs:1:33
[INFO] [stderr]   |
[INFO] [stderr] 1 | use ring::aead::{seal_in_place, open_in_place, AES_256_GCM, SealingKey};
[INFO] [stderr]   |                                 ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `open_in_place`
[INFO] [stderr]  --> src/secure.rs:1:33
[INFO] [stderr]   |
[INFO] [stderr] 1 | use ring::aead::{seal_in_place, open_in_place, AES_256_GCM, SealingKey};
[INFO] [stderr]   |                                 ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `res`
[INFO] [stderr]    --> src/checkin.rs:106:21
[INFO] [stderr]     |
[INFO] [stderr] 106 |                 let res = fs::copy(entry.path(), item_path);
[INFO] [stderr]     |                     ^^^ help: consider prefixing with an underscore: `_res`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `res`
[INFO] [stderr]    --> src/checkin.rs:108:21
[INFO] [stderr]     |
[INFO] [stderr] 108 |                 let res = fs::create_dir(item_path);
[INFO] [stderr]     |                     ^^^ help: consider prefixing with an underscore: `_res`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `res`
[INFO] [stderr]    --> src/checkin.rs:134:9
[INFO] [stderr]     |
[INFO] [stderr] 134 |     let res = unix::fs::symlink(new_path, path);
[INFO] [stderr]     |         ^^^ help: consider prefixing with an underscore: `_res`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `res`
[INFO] [stderr]  --> src/secure.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let res = random_nonce.fill(&mut nonce);
[INFO] [stderr]   |         ^^^ help: consider prefixing with an underscore: `_res`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `matches`
[INFO] [stderr]  --> src/secure.rs:5:15
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn secure(matches: &ArgMatches) {
[INFO] [stderr]   |               ^^^^^^^ help: consider prefixing with an underscore: `_matches`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `res`
[INFO] [stderr]    --> src/checkin.rs:106:21
[INFO] [stderr]     |
[INFO] [stderr] 106 |                 let res = fs::copy(entry.path(), item_path);
[INFO] [stderr]     |                     ^^^ help: consider prefixing with an underscore: `_res`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `res`
[INFO] [stderr]    --> src/checkin.rs:108:21
[INFO] [stderr]     |
[INFO] [stderr] 108 |                 let res = fs::create_dir(item_path);
[INFO] [stderr]     |                     ^^^ help: consider prefixing with an underscore: `_res`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `res`
[INFO] [stderr]    --> src/checkin.rs:134:9
[INFO] [stderr]     |
[INFO] [stderr] 134 |     let res = unix::fs::symlink(new_path, path);
[INFO] [stderr]     |         ^^^ help: consider prefixing with an underscore: `_res`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `res`
[INFO] [stderr]  --> src/secure.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let res = random_nonce.fill(&mut nonce);
[INFO] [stderr]   |         ^^^ help: consider prefixing with an underscore: `_res`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `matches`
[INFO] [stderr]  --> src/secure.rs:5:15
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn secure(matches: &ArgMatches) {
[INFO] [stderr]   |               ^^^^^^^ help: consider prefixing with an underscore: `_matches`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.58s
[INFO] running `"docker" "inspect" "9157a6472dcc5e88b47e1b401141786410656be00b4227df3aee01074267339f"`
[INFO] running `"docker" "rm" "-f" "9157a6472dcc5e88b47e1b401141786410656be00b4227df3aee01074267339f"`
[INFO] [stdout] 9157a6472dcc5e88b47e1b401141786410656be00b4227df3aee01074267339f