Dec 19 17:16:35.693 INFO checking erikjohnston/synapse-find-unreferenced-state-groups against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 17:16:35.693 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-3/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/erikjohnston/synapse-find-unreferenced-state-groups:/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 17:16:36.160 INFO [stdout] dc3c48fc84e80b05bd132c75095eb1a129b52152290207579a5c636a4dd641d1
Dec 19 17:16:36.168 INFO running `"docker" "start" "-a" "dc3c48fc84e80b05bd132c75095eb1a129b52152290207579a5c636a4dd641d1"`
Dec 19 17:16:38.648 INFO [stderr]     Checking regex v1.0.5
Dec 19 17:16:38.648 INFO [stderr]     Checking postgres-protocol v0.3.2
Dec 19 17:16:40.684 INFO [stderr]     Checking postgres-shared v0.4.2
Dec 19 17:16:43.127 INFO [stderr]     Checking postgres v0.15.2
Dec 19 17:16:43.465 INFO [stderr]     Checking console v0.6.2
Dec 19 17:16:45.003 INFO [stderr]     Checking indicatif v0.9.0
Dec 19 17:16:46.196 INFO [stderr]     Checking rust-synapse-find-unreferenced-state-groups v0.1.0 (/opt/crater/workdir)
Dec 19 17:16:47.692 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 17:16:47.692 INFO [stderr]    --> src/main.rs:252:17
Dec 19 17:16:47.692 INFO [stderr]     |
Dec 19 17:16:47.692 INFO [stderr] 252 |                 writeln!(fs, "{}", state_group);
Dec 19 17:16:47.692 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:16:47.692 INFO [stderr]     |
Dec 19 17:16:47.692 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 17:16:47.692 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 17:16:47.692 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 17:16:47.692 INFO [stderr] 
Dec 19 17:16:47.752 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 17:16:47.752 INFO [stderr]    --> src/main.rs:252:17
Dec 19 17:16:47.752 INFO [stderr]     |
Dec 19 17:16:47.752 INFO [stderr] 252 |                 writeln!(fs, "{}", state_group);
Dec 19 17:16:47.752 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:16:47.752 INFO [stderr]     |
Dec 19 17:16:47.752 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 17:16:47.752 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 17:16:47.752 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 17:16:47.752 INFO [stderr] 
Dec 19 17:16:47.795 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.35s
Dec 19 17:16:48.956 INFO running `"docker" "inspect" "dc3c48fc84e80b05bd132c75095eb1a129b52152290207579a5c636a4dd641d1"`
Dec 19 17:16:49.238 INFO running `"docker" "rm" "-f" "dc3c48fc84e80b05bd132c75095eb1a129b52152290207579a5c636a4dd641d1"`
Dec 19 17:16:49.552 INFO [stdout] dc3c48fc84e80b05bd132c75095eb1a129b52152290207579a5c636a4dd641d1