[INFO] updating cached repository erikjohnston/rust-matrix-state
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/erikjohnston/rust-matrix-state
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/erikjohnston/rust-matrix-state" "work/ex/beta-1.38-1/sources/1.37.0/gh/erikjohnston/rust-matrix-state"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/erikjohnston/rust-matrix-state'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/erikjohnston/rust-matrix-state" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/erikjohnston/rust-matrix-state"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/erikjohnston/rust-matrix-state'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7b817b15b83ee3f626367a0e2be48eab333cd4f3
[INFO] sha for GitHub repo erikjohnston/rust-matrix-state: 7b817b15b83ee3f626367a0e2be48eab333cd4f3
[INFO] validating manifest of erikjohnston/rust-matrix-state on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of erikjohnston/rust-matrix-state on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing erikjohnston/rust-matrix-state
[INFO] finished frobbing erikjohnston/rust-matrix-state
[INFO] frobbed toml for erikjohnston/rust-matrix-state written to work/ex/beta-1.38-1/sources/1.37.0/gh/erikjohnston/rust-matrix-state/Cargo.toml
[INFO] started frobbing erikjohnston/rust-matrix-state
[INFO] finished frobbing erikjohnston/rust-matrix-state
[INFO] frobbed toml for erikjohnston/rust-matrix-state written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/erikjohnston/rust-matrix-state/Cargo.toml
[INFO] crate erikjohnston/rust-matrix-state already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing erikjohnston/rust-matrix-state against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/erikjohnston/rust-matrix-state:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 43fca43ac3f738c627c4241584bac94c98abf7f91ab12c0c6caa57a3714330b1
[INFO] running `"docker" "start" "-a" "43fca43ac3f738c627c4241584bac94c98abf7f91ab12c0c6caa57a3714330b1"`
[INFO] [stderr]    Compiling cc v1.0.10
[INFO] [stderr]    Compiling arrayref v0.3.4
[INFO] [stderr]    Compiling md5 v0.3.7
[INFO] [stderr]    Compiling fallible-iterator v0.1.4
[INFO] [stderr]    Compiling heapsize v0.4.2
[INFO] [stderr]    Compiling nom v2.2.1
[INFO] [stderr]    Compiling sha1 v0.6.0
[INFO] [stderr]    Compiling proc-macro2 v0.3.5
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling termios v0.2.2
[INFO] [stderr]    Compiling clicolors-control v0.2.0
[INFO] [stderr]    Compiling socket2 v0.3.4
[INFO] [stderr]    Compiling log v0.4.1
[INFO] [stderr]    Compiling stringprep v0.1.2
[INFO] [stderr]    Compiling rustc_version v0.2.2
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]    Compiling block-buffer v0.3.3
[INFO] [stderr]    Compiling quote v0.5.1
[INFO] [stderr]    Compiling parking_lot v0.5.4
[INFO] [stderr]    Compiling regex v0.2.10
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]    Compiling synstructure v0.5.2
[INFO] [stderr]    Compiling digest v0.7.2
[INFO] [stderr]    Compiling procinfo v0.4.2
[INFO] [stderr]    Compiling syn v0.13.1
[INFO] [stderr]    Compiling sha2 v0.7.0
[INFO] [stderr]    Compiling hmac v0.5.0
[INFO] [stderr]    Compiling heapsize_derive v0.1.4
[INFO] [stderr]    Compiling postgres-protocol v0.3.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]    Compiling postgres-shared v0.4.1
[INFO] [stderr]    Compiling console v0.6.1
[INFO] [stderr]    Compiling indicatif v0.9.0
[INFO] [stderr]    Compiling postgres v0.15.2
[INFO] [stderr]    Compiling serde_derive_internals v0.23.0
[INFO] [stderr]    Compiling serde_derive v1.0.37
[INFO] [stderr]    Compiling backtrace v0.3.6
[INFO] [stderr]    Compiling failure v0.1.1
[INFO] [stderr]    Compiling rust-state v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:324:33
[INFO] [stderr]     |
[INFO] [stderr] 324 |             let a = if let Some(mut i) = adjacents.get_mut(p as &str) {
[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: variable does not need to be mutable
[INFO] [stderr]   --> src/state.rs:23:25
[INFO] [stderr]    |
[INFO] [stderr] 23 |             if let Some(mut v) = conflicted.get_mut(t, s) {
[INFO] [stderr]    |                         ----^
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/state.rs:33:21
[INFO] [stderr]    |
[INFO] [stderr] 33 |                 let mut v = conflicted.get_mut_or_default(t, s);
[INFO] [stderr]    |                     ----^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 40s
[INFO] running `"docker" "inspect" "43fca43ac3f738c627c4241584bac94c98abf7f91ab12c0c6caa57a3714330b1"`
[INFO] running `"docker" "rm" "-f" "43fca43ac3f738c627c4241584bac94c98abf7f91ab12c0c6caa57a3714330b1"`
[INFO] [stdout] 43fca43ac3f738c627c4241584bac94c98abf7f91ab12c0c6caa57a3714330b1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/erikjohnston/rust-matrix-state:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 85b4a3b66625582bdcf852967139ed7b4ad9128bf6353c6ed0076eaf2f48b251
[INFO] running `"docker" "start" "-a" "85b4a3b66625582bdcf852967139ed7b4ad9128bf6353c6ed0076eaf2f48b251"`
[INFO] [stderr]    Compiling rust-state v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/state_map.rs:403:49
[INFO] [stderr]     |
[INFO] [stderr] 403 |         let res = state_map.add_or_remove(t, s, 2);
[INFO] [stderr]     |                                                 ^
[INFO] [stderr]     |                                                 |
[INFO] [stderr]     |                                                 expected &{integer}, found integer
[INFO] [stderr]     |                                                 help: consider borrowing here: `&2`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&{integer}`
[INFO] [stderr]                found type `{integer}`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/state_map.rs:404:9
[INFO] [stderr]     |
[INFO] [stderr] 404 |         assert_eq!(res, Some((2, 1)));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected integer, found tuple
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `std::option::Option<{integer}>`
[INFO] [stderr]                found type `std::option::Option<({integer}, {integer})>`
[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)
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/state_map.rs:408:49
[INFO] [stderr]     |
[INFO] [stderr] 408 |         let res = state_map.add_or_remove(t, s, 1);
[INFO] [stderr]     |                                                 ^
[INFO] [stderr]     |                                                 |
[INFO] [stderr]     |                                                 expected &{integer}, found integer
[INFO] [stderr]     |                                                 help: consider borrowing here: `&1`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&{integer}`
[INFO] [stderr]                found type `{integer}`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/state_map.rs:411:49
[INFO] [stderr]     |
[INFO] [stderr] 411 |         let res = state_map.add_or_remove(t, s, 1);
[INFO] [stderr]     |                                                 ^
[INFO] [stderr]     |                                                 |
[INFO] [stderr]     |                                                 expected &{integer}, found integer
[INFO] [stderr]     |                                                 help: consider borrowing here: `&1`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `&{integer}`
[INFO] [stderr]                found type `{integer}`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0308`.
[INFO] [stderr] error: Could not compile `rust-state`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "85b4a3b66625582bdcf852967139ed7b4ad9128bf6353c6ed0076eaf2f48b251"`
[INFO] running `"docker" "rm" "-f" "85b4a3b66625582bdcf852967139ed7b4ad9128bf6353c6ed0076eaf2f48b251"`
[INFO] [stdout] 85b4a3b66625582bdcf852967139ed7b4ad9128bf6353c6ed0076eaf2f48b251