Dec 11 19:00:29.353 INFO checking eminence/snapshot_trim against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 19:00:29.353 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-7/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa9aa79c3c583aab59ac9134542d60a780c35e2e-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 11 19:00:29.753 INFO [stdout] 58f761229805379422d5fd342b257c4447ee5226085917e1cc4b2b4d9a65e88b
Dec 11 19:00:29.760 INFO running `"docker" "start" "-a" "58f761229805379422d5fd342b257c4447ee5226085917e1cc4b2b4d9a65e88b"`
Dec 11 19:00:30.835 INFO [stderr] usermod: no changes
Dec 11 19:00:31.000 INFO [stderr]     Checking toml v0.4.5
Dec 11 19:00:31.000 INFO [stderr]     Checking docopt v0.8.1
Dec 11 19:00:33.600 INFO [stderr]     Checking snapshot_trim v0.1.0 (/source)
Dec 11 19:00:35.008 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 19:00:35.008 INFO [stderr]   --> src/main.rs:66:9
Dec 11 19:00:35.008 INFO [stderr]    |
Dec 11 19:00:35.008 INFO [stderr] 66 |         write!(fmt, "<Snapshot {:?} {:?}>", self.snap, self.state);
Dec 11 19:00:35.008 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 19:00:35.008 INFO [stderr]    |
Dec 11 19:00:35.008 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 19:00:35.008 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 19:00:35.008 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 11 19:00:35.008 INFO [stderr] 
Dec 11 19:00:35.082 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 19:00:35.082 INFO [stderr]   --> src/main.rs:66:9
Dec 11 19:00:35.082 INFO [stderr]    |
Dec 11 19:00:35.082 INFO [stderr] 66 |         write!(fmt, "<Snapshot {:?} {:?}>", self.snap, self.state);
Dec 11 19:00:35.082 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 19:00:35.082 INFO [stderr]    |
Dec 11 19:00:35.082 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 19:00:35.082 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 19:00:35.082 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 11 19:00:35.082 INFO [stderr] 
Dec 11 19:00:35.113 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.23s
Dec 11 19:00:35.113 INFO [stderr] su: No module specific data is present
Dec 11 19:00:35.826 INFO running `"docker" "inspect" "58f761229805379422d5fd342b257c4447ee5226085917e1cc4b2b4d9a65e88b"`
Dec 11 19:00:36.214 INFO running `"docker" "rm" "-f" "58f761229805379422d5fd342b257c4447ee5226085917e1cc4b2b4d9a65e88b"`
Dec 11 19:00:36.385 INFO [stdout] 58f761229805379422d5fd342b257c4447ee5226085917e1cc4b2b4d9a65e88b