[INFO] updating cached repository https://github.com/davidbarsky/fs-sync
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f35f62e82a0658d83c69ac81955c2dbf6f932aa2
[INFO] checking davidbarsky/fs-sync against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidbarsky%2Ffs-sync" "work/builds/worker-2/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/davidbarsky/fs-sync on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/davidbarsky/fs-sync
[INFO] finished tweaking git repo https://github.com/davidbarsky/fs-sync
[INFO] tweaked toml for git repo https://github.com/davidbarsky/fs-sync written to work/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/davidbarsky/fs-sync already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b5b1c1c426a95e1cd25ac13a4e74e27dca073386d496f6177255b2e2e33a2e9c
[INFO] running `"docker" "start" "-a" "b5b1c1c426a95e1cd25ac13a4e74e27dca073386d496f6177255b2e2e33a2e9c"`
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling openssl-sys v0.9.20
[INFO] [stderr]    Compiling cmake v0.1.26
[INFO] [stderr]    Compiling libz-sys v1.0.18
[INFO] [stderr]     Checking memchr v2.0.0
[INFO] [stderr]     Checking loggerv v0.4.0
[INFO] [stderr]    Compiling structopt-derive v0.1.1
[INFO] [stderr]     Checking structopt v0.1.1
[INFO] [stderr]     Checking globset v0.2.1
[INFO] [stderr]    Compiling libssh2-sys v0.2.6
[INFO] [stderr]     Checking ignore v0.3.1
[INFO] [stderr]     Checking ssh2 v0.3.2
[INFO] [stderr]     Checking backtrace v0.3.3
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking fs-sync v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: method is never used: `len`
[INFO] [stderr]   --> src/local.rs:71:5
[INFO] [stderr]    |
[INFO] [stderr] 71 |     pub fn len(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_empty`
[INFO] [stderr]   --> src/local.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     pub fn is_empty(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `full_sync`
[INFO] [stderr]    --> src/local.rs:191:5
[INFO] [stderr]     |
[INFO] [stderr] 191 |     fn full_sync(&self, file_map: &PathMap) -> Result<(), Error> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_empty`
[INFO] [stderr]   --> src/local.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     pub fn is_empty(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `full_sync`
[INFO] [stderr]    --> src/local.rs:191:5
[INFO] [stderr]     |
[INFO] [stderr] 191 |     fn full_sync(&self, file_map: &PathMap) -> Result<(), Error> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.92s
[INFO] running `"docker" "inspect" "b5b1c1c426a95e1cd25ac13a4e74e27dca073386d496f6177255b2e2e33a2e9c"`
[INFO] running `"docker" "rm" "-f" "b5b1c1c426a95e1cd25ac13a4e74e27dca073386d496f6177255b2e2e33a2e9c"`
[INFO] [stdout] b5b1c1c426a95e1cd25ac13a4e74e27dca073386d496f6177255b2e2e33a2e9c