[INFO] updating cached repository cyplo/rustback
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/cyplo/rustback
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/cyplo/rustback" "work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/cyplo/rustback"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/cyplo/rustback'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cyplo/rustback" "work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/cyplo/rustback"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/cyplo/rustback'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 65900c95e8fed47f1558facbc8bd7e02746906a3
[INFO] sha for GitHub repo cyplo/rustback: 65900c95e8fed47f1558facbc8bd7e02746906a3
[INFO] validating manifest of cyplo/rustback on toolchain master#f66e4697ae286985ddefc53c3a047614568458bb
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cyplo/rustback on toolchain try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing cyplo/rustback
[INFO] finished frobbing cyplo/rustback
[INFO] frobbed toml for cyplo/rustback written to work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/cyplo/rustback/Cargo.toml
[INFO] started frobbing cyplo/rustback
[INFO] finished frobbing cyplo/rustback
[INFO] frobbed toml for cyplo/rustback written to work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/cyplo/rustback/Cargo.toml
[INFO] crate cyplo/rustback has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking cyplo/rustback against master#f66e4697ae286985ddefc53c3a047614568458bb for pr-58592
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58592/worker-7/master#f66e4697ae286985ddefc53c3a047614568458bb:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/cyplo/rustback:/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" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 57441315bf40f16d18a379c94af660c0f383338c5897a3aea505ee396ba4c431
[INFO] running `"docker" "start" "-a" "57441315bf40f16d18a379c94af660c0f383338c5897a3aea505ee396ba4c431"`
[INFO] [stderr]     Checking dir-diff v0.3.1
[INFO] [stderr]     Checking bakare v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `path`
[INFO] [stderr]   --> src/backup.rs:32:32
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn file_version(&self, path: &Path) -> Version {
[INFO] [stderr]    |                                ^^^^ help: consider prefixing with an underscore: `_path`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `what`
[INFO] [stderr]   --> src/restore.rs:34:41
[INFO] [stderr]    |
[INFO] [stderr] 34 |     pub fn restore_as_of_version(&self, what: WhatToRestore, version: Version) -> Result<(), io::Error> {
[INFO] [stderr]    |                                         ^^^^ help: consider prefixing with an underscore: `_what`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `version`
[INFO] [stderr]   --> src/restore.rs:34:62
[INFO] [stderr]    |
[INFO] [stderr] 34 |     pub fn restore_as_of_version(&self, what: WhatToRestore, version: Version) -> Result<(), io::Error> {
[INFO] [stderr]    |                                                              ^^^^^^^ help: consider prefixing with an underscore: `_version`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `next`
[INFO] [stderr]  --> src/storage.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     fn next(self) -> Self {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Index`
[INFO] [stderr]   --> src/storage.rs:29:1
[INFO] [stderr]    |
[INFO] [stderr] 29 | struct Index<'a> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/storage.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn new() -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `store`
[INFO] [stderr]   --> src/storage.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn store(&mut self, source_path: &'a str, hash: Hash) -> (Version, String) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `latest_version_for_path`
[INFO] [stderr]   --> src/storage.rs:91:5
[INFO] [stderr]    |
[INFO] [stderr] 91 |     fn latest_version_for_path(&self, path: &str) -> Option<Version> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `path`
[INFO] [stderr]   --> src/backup.rs:32:32
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn file_version(&self, path: &Path) -> Version {
[INFO] [stderr]    |                                ^^^^ help: consider prefixing with an underscore: `_path`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `what`
[INFO] [stderr]   --> src/restore.rs:34:41
[INFO] [stderr]    |
[INFO] [stderr] 34 |     pub fn restore_as_of_version(&self, what: WhatToRestore, version: Version) -> Result<(), io::Error> {
[INFO] [stderr]    |                                         ^^^^ help: consider prefixing with an underscore: `_what`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `version`
[INFO] [stderr]   --> src/restore.rs:34:62
[INFO] [stderr]    |
[INFO] [stderr] 34 |     pub fn restore_as_of_version(&self, what: WhatToRestore, version: Version) -> Result<(), io::Error> {
[INFO] [stderr]    |                                                              ^^^^^^^ help: consider prefixing with an underscore: `_version`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.24s
[INFO] running `"docker" "inspect" "57441315bf40f16d18a379c94af660c0f383338c5897a3aea505ee396ba4c431"`
[INFO] running `"docker" "rm" "-f" "57441315bf40f16d18a379c94af660c0f383338c5897a3aea505ee396ba4c431"`
[INFO] [stdout] 57441315bf40f16d18a379c94af660c0f383338c5897a3aea505ee396ba4c431