Dec 19 17:23:00.109 INFO checking eminence/snapshot_trim against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 17:23:00.109 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-4/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 17:23:00.700 INFO [stdout] 300a27244c699c974521ec2fc538cb995ccea6ee2cdf54811c6420ee9157d843
Dec 19 17:23:00.708 INFO running `"docker" "start" "-a" "300a27244c699c974521ec2fc538cb995ccea6ee2cdf54811c6420ee9157d843"`
Dec 19 17:23:02.299 INFO [stderr]     Checking toml v0.4.5
Dec 19 17:23:02.299 INFO [stderr]     Checking docopt v0.8.1
Dec 19 17:23:04.584 INFO [stderr]     Checking snapshot_trim v0.1.0 (/opt/crater/workdir)
Dec 19 17:23:05.078 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 17:23:05.078 INFO [stderr]   --> src/main.rs:66:9
Dec 19 17:23:05.078 INFO [stderr]    |
Dec 19 17:23:05.078 INFO [stderr] 66 |         write!(fmt, "<Snapshot {:?} {:?}>", self.snap, self.state);
Dec 19 17:23:05.078 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:23:05.078 INFO [stderr]    |
Dec 19 17:23:05.078 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 17:23:05.078 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 17:23:05.078 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 19 17:23:05.078 INFO [stderr] 
Dec 19 17:23:05.098 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 17:23:05.098 INFO [stderr]   --> src/main.rs:66:9
Dec 19 17:23:05.098 INFO [stderr]    |
Dec 19 17:23:05.098 INFO [stderr] 66 |         write!(fmt, "<Snapshot {:?} {:?}>", self.snap, self.state);
Dec 19 17:23:05.098 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:23:05.098 INFO [stderr]    |
Dec 19 17:23:05.098 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 17:23:05.098 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 17:23:05.098 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 19 17:23:05.098 INFO [stderr] 
Dec 19 17:23:05.118 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.91s
Dec 19 17:23:05.492 INFO running `"docker" "inspect" "300a27244c699c974521ec2fc538cb995ccea6ee2cdf54811c6420ee9157d843"`
Dec 19 17:23:05.654 INFO running `"docker" "rm" "-f" "300a27244c699c974521ec2fc538cb995ccea6ee2cdf54811c6420ee9157d843"`
Dec 19 17:23:05.780 INFO [stdout] 300a27244c699c974521ec2fc538cb995ccea6ee2cdf54811c6420ee9157d843