[INFO] updating cached repository erikjohnston/synapse-find-unreferenced-state-groups
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/erikjohnston/synapse-find-unreferenced-state-groups
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/erikjohnston/synapse-find-unreferenced-state-groups" "work/ex/beta-1.37-6/sources/1.36.0/gh/erikjohnston/synapse-find-unreferenced-state-groups"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/erikjohnston/synapse-find-unreferenced-state-groups'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/erikjohnston/synapse-find-unreferenced-state-groups" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/erikjohnston/synapse-find-unreferenced-state-groups"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/erikjohnston/synapse-find-unreferenced-state-groups'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7c8afafd8479bd84bdf5005d029b412a83419268
[INFO] sha for GitHub repo erikjohnston/synapse-find-unreferenced-state-groups: 7c8afafd8479bd84bdf5005d029b412a83419268
[INFO] validating manifest of erikjohnston/synapse-find-unreferenced-state-groups on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of erikjohnston/synapse-find-unreferenced-state-groups on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing erikjohnston/synapse-find-unreferenced-state-groups
[INFO] finished frobbing erikjohnston/synapse-find-unreferenced-state-groups
[INFO] frobbed toml for erikjohnston/synapse-find-unreferenced-state-groups written to work/ex/beta-1.37-6/sources/1.36.0/gh/erikjohnston/synapse-find-unreferenced-state-groups/Cargo.toml
[INFO] started frobbing erikjohnston/synapse-find-unreferenced-state-groups
[INFO] finished frobbing erikjohnston/synapse-find-unreferenced-state-groups
[INFO] frobbed toml for erikjohnston/synapse-find-unreferenced-state-groups written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/erikjohnston/synapse-find-unreferenced-state-groups/Cargo.toml
[INFO] crate erikjohnston/synapse-find-unreferenced-state-groups already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing erikjohnston/synapse-find-unreferenced-state-groups against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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=warn" "-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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 6f48e8103618570163e0b48b6cb9c31bd6477808de9f5472a396217303a0a3d4
[INFO] running `"docker" "start" "-a" "6f48e8103618570163e0b48b6cb9c31bd6477808de9f5472a396217303a0a3d4"`
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling termios v0.3.0
[INFO] [stderr]    Compiling socket2 v0.3.8
[INFO] [stderr]    Compiling sha2 v0.7.1
[INFO] [stderr]    Compiling hmac v0.5.0
[INFO] [stderr]    Compiling parking_lot v0.6.4
[INFO] [stderr]    Compiling postgres-protocol v0.3.2
[INFO] [stderr]    Compiling aho-corasick v0.6.8
[INFO] [stderr]    Compiling postgres-shared v0.4.2
[INFO] [stderr]    Compiling regex v1.0.5
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling postgres v0.15.2
[INFO] [stderr]    Compiling console v0.6.2
[INFO] [stderr]    Compiling indicatif v0.9.0
[INFO] [stderr]    Compiling rust-synapse-find-unreferenced-state-groups v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:43:24
[INFO] [stderr]    |
[INFO] [stderr] 43 |     let mut args: Vec<&ToSql> = Vec::new();
[INFO] [stderr]    |                        ^^^^^ help: use `dyn`: `dyn ToSql`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:112:13
[INFO] [stderr]     |
[INFO] [stderr] 112 |         let mut rows = stmt.query(&[&missing_sg]).unwrap();
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:252:17
[INFO] [stderr]     |
[INFO] [stderr] 252 |                 writeln!(fs, "{}", state_group);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.59s
[INFO] running `"docker" "inspect" "6f48e8103618570163e0b48b6cb9c31bd6477808de9f5472a396217303a0a3d4"`
[INFO] running `"docker" "rm" "-f" "6f48e8103618570163e0b48b6cb9c31bd6477808de9f5472a396217303a0a3d4"`
[INFO] [stdout] 6f48e8103618570163e0b48b6cb9c31bd6477808de9f5472a396217303a0a3d4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 18280d0b2bd0e1db9de78aa0958b135bd8847af4955176f6f8f200b771eb1074
[INFO] running `"docker" "start" "-a" "18280d0b2bd0e1db9de78aa0958b135bd8847af4955176f6f8f200b771eb1074"`
[INFO] [stderr]    Compiling rust-synapse-find-unreferenced-state-groups v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:43:24
[INFO] [stderr]    |
[INFO] [stderr] 43 |     let mut args: Vec<&ToSql> = Vec::new();
[INFO] [stderr]    |                        ^^^^^ help: use `dyn`: `dyn ToSql`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:112:13
[INFO] [stderr]     |
[INFO] [stderr] 112 |         let mut rows = stmt.query(&[&missing_sg]).unwrap();
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:252:17
[INFO] [stderr]     |
[INFO] [stderr] 252 |                 writeln!(fs, "{}", state_group);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.33s
[INFO] running `"docker" "inspect" "18280d0b2bd0e1db9de78aa0958b135bd8847af4955176f6f8f200b771eb1074"`
[INFO] running `"docker" "rm" "-f" "18280d0b2bd0e1db9de78aa0958b135bd8847af4955176f6f8f200b771eb1074"`
[INFO] [stdout] 18280d0b2bd0e1db9de78aa0958b135bd8847af4955176f6f8f200b771eb1074
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 957d55189c09971c1b6a851a2946a06ce5bc5eb69cdaa1847fccdf99fc296861
[INFO] running `"docker" "start" "-a" "957d55189c09971c1b6a851a2946a06ce5bc5eb69cdaa1847fccdf99fc296861"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_synapse_find_unreferenced_state_groups-d042013bc06aa2d6
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "957d55189c09971c1b6a851a2946a06ce5bc5eb69cdaa1847fccdf99fc296861"`
[INFO] running `"docker" "rm" "-f" "957d55189c09971c1b6a851a2946a06ce5bc5eb69cdaa1847fccdf99fc296861"`
[INFO] [stdout] 957d55189c09971c1b6a851a2946a06ce5bc5eb69cdaa1847fccdf99fc296861