Dec 13 20:02:05.944 INFO testing erikjohnston/synapse-find-unreferenced-state-groups against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 13 20:02:05.944 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-alt build --frozen" "-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 13 20:02:06.527 INFO [stdout] 9902526f7bd33f339776f9370605c29c2bd2f1d08998e764c610630674675393
Dec 13 20:02:06.533 INFO running `"docker" "start" "-a" "9902526f7bd33f339776f9370605c29c2bd2f1d08998e764c610630674675393"`
Dec 13 20:02:08.270 INFO [stderr] usermod: no changes
Dec 13 20:02:08.559 INFO [stderr]    Compiling fallible-iterator v0.1.5
Dec 13 20:02:08.562 INFO [stderr]    Compiling memchr v1.0.2
Dec 13 20:02:08.562 INFO [stderr]    Compiling socket2 v0.3.8
Dec 13 20:02:08.566 INFO [stderr]    Compiling stringprep v0.1.2
Dec 13 20:02:08.568 INFO [stderr]    Compiling regex v1.0.5
Dec 13 20:02:20.120 INFO [stderr]    Compiling postgres-protocol v0.3.2
Dec 13 20:02:26.221 INFO [stderr]    Compiling console v0.6.2
Dec 13 20:02:28.114 INFO [stderr]    Compiling postgres-shared v0.4.2
Dec 13 20:02:30.836 INFO [stderr]    Compiling indicatif v0.9.0
Dec 13 20:02:34.823 INFO [stderr]    Compiling postgres v0.15.2
Dec 13 20:02:42.097 INFO [stderr]    Compiling rust-synapse-find-unreferenced-state-groups v0.1.0 (/source)
Dec 13 20:02:45.128 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 20:02:45.128 INFO [stderr]    --> src/main.rs:252:17
Dec 13 20:02:45.128 INFO [stderr]     |
Dec 13 20:02:45.128 INFO [stderr] 252 |                 writeln!(fs, "{}", state_group);
Dec 13 20:02:45.128 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 20:02:45.128 INFO [stderr]     |
Dec 13 20:02:45.128 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 13 20:02:45.128 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 20:02:45.128 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 13 20:02:45.128 INFO [stderr] 
Dec 13 20:02:50.595 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.29s
Dec 13 20:02:50.601 INFO [stderr] su: No module specific data is present
Dec 13 20:02:51.679 INFO running `"docker" "inspect" "9902526f7bd33f339776f9370605c29c2bd2f1d08998e764c610630674675393"`
Dec 13 20:02:52.033 INFO running `"docker" "rm" "-f" "9902526f7bd33f339776f9370605c29c2bd2f1d08998e764c610630674675393"`
Dec 13 20:02:52.399 INFO [stdout] 9902526f7bd33f339776f9370605c29c2bd2f1d08998e764c610630674675393
Dec 13 20:02:52.411 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen --no-run" "-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 13 20:02:52.931 INFO [stdout] ca3c3a5248d50fbdfb4bae30d7f99b2a54f463af526ee4dda64c04b3d80fda75
Dec 13 20:02:52.939 INFO running `"docker" "start" "-a" "ca3c3a5248d50fbdfb4bae30d7f99b2a54f463af526ee4dda64c04b3d80fda75"`
Dec 13 20:02:54.075 INFO [stderr] usermod: no changes
Dec 13 20:02:54.262 INFO [stderr]    Compiling rust-synapse-find-unreferenced-state-groups v0.1.0 (/source)
Dec 13 20:02:57.311 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 20:02:57.311 INFO [stderr]    --> src/main.rs:252:17
Dec 13 20:02:57.311 INFO [stderr]     |
Dec 13 20:02:57.311 INFO [stderr] 252 |                 writeln!(fs, "{}", state_group);
Dec 13 20:02:57.311 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 20:02:57.311 INFO [stderr]     |
Dec 13 20:02:57.311 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 13 20:02:57.311 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 20:02:57.311 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 13 20:02:57.311 INFO [stderr] 
Dec 13 20:02:57.901 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.80s
Dec 13 20:02:57.910 INFO [stderr] su: No module specific data is present
Dec 13 20:02:58.907 INFO running `"docker" "inspect" "ca3c3a5248d50fbdfb4bae30d7f99b2a54f463af526ee4dda64c04b3d80fda75"`
Dec 13 20:02:59.158 INFO running `"docker" "rm" "-f" "ca3c3a5248d50fbdfb4bae30d7f99b2a54f463af526ee4dda64c04b3d80fda75"`
Dec 13 20:02:59.479 INFO [stdout] ca3c3a5248d50fbdfb4bae30d7f99b2a54f463af526ee4dda64c04b3d80fda75
Dec 13 20:02:59.481 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen" "-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 13 20:02:59.947 INFO [stdout] 64338d51cac95069ab499c89f23b5961077056e4e6bcdcb245b9e3cba37d071e
Dec 13 20:02:59.955 INFO running `"docker" "start" "-a" "64338d51cac95069ab499c89f23b5961077056e4e6bcdcb245b9e3cba37d071e"`
Dec 13 20:03:02.082 INFO [stderr] usermod: no changes
Dec 13 20:03:02.280 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.18s
Dec 13 20:03:02.308 INFO [stderr]      Running /target/debug/deps/rust_synapse_find_unreferenced_state_groups-5fec9ac8f4b15d37
Dec 13 20:03:02.310 INFO [stdout] 
Dec 13 20:03:02.310 INFO [stdout] running 0 tests
Dec 13 20:03:02.310 INFO [stdout] 
Dec 13 20:03:02.310 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 20:03:02.310 INFO [stdout] 
Dec 13 20:03:02.318 INFO [stderr] su: No module specific data is present
Dec 13 20:03:03.649 INFO running `"docker" "inspect" "64338d51cac95069ab499c89f23b5961077056e4e6bcdcb245b9e3cba37d071e"`
Dec 13 20:03:04.065 INFO running `"docker" "rm" "-f" "64338d51cac95069ab499c89f23b5961077056e4e6bcdcb245b9e3cba37d071e"`
Dec 13 20:03:04.358 INFO [stdout] 64338d51cac95069ab499c89f23b5961077056e4e6bcdcb245b9e3cba37d071e