Dec 18 00:43:53.624 INFO checking eminence/snapshot_trim against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 00:43:53.625 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/eminence/snapshot_trim:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 00:43:53.940 INFO [stdout] e76cb3ddd82d395cde26a897ba21d948e56a9678f8778ebfbc95f77d20621c3d
Dec 18 00:43:53.942 INFO running `"docker" "start" "-a" "e76cb3ddd82d395cde26a897ba21d948e56a9678f8778ebfbc95f77d20621c3d"`
Dec 18 00:43:55.302 INFO [stderr]     Checking docopt v0.8.1
Dec 18 00:43:56.488 INFO [stderr]     Checking snapshot_trim v0.1.0 (/opt/crater/workdir)
Dec 18 00:43:56.963 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 00:43:56.963 INFO [stderr]   --> src/main.rs:66:9
Dec 18 00:43:56.963 INFO [stderr]    |
Dec 18 00:43:56.963 INFO [stderr] 66 |         write!(fmt, "<Snapshot {:?} {:?}>", self.snap, self.state);
Dec 18 00:43:56.963 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:43:56.963 INFO [stderr]    |
Dec 18 00:43:56.963 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 00:43:56.963 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 00:43:56.963 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 18 00:43:56.963 INFO [stderr] 
Dec 18 00:43:56.982 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 00:43:56.982 INFO [stderr]   --> src/main.rs:66:9
Dec 18 00:43:56.982 INFO [stderr]    |
Dec 18 00:43:56.982 INFO [stderr] 66 |         write!(fmt, "<Snapshot {:?} {:?}>", self.snap, self.state);
Dec 18 00:43:56.982 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 00:43:56.982 INFO [stderr]    |
Dec 18 00:43:56.982 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 00:43:56.982 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 00:43:56.982 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 18 00:43:56.982 INFO [stderr] 
Dec 18 00:43:57.001 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.78s
Dec 18 00:43:57.322 INFO running `"docker" "inspect" "e76cb3ddd82d395cde26a897ba21d948e56a9678f8778ebfbc95f77d20621c3d"`
Dec 18 00:43:57.454 INFO running `"docker" "rm" "-f" "e76cb3ddd82d395cde26a897ba21d948e56a9678f8778ebfbc95f77d20621c3d"`
Dec 18 00:43:57.692 INFO [stdout] e76cb3ddd82d395cde26a897ba21d948e56a9678f8778ebfbc95f77d20621c3d