[INFO] updating cached repository https://github.com/erikjohnston/rust-matrix-state
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7b817b15b83ee3f626367a0e2be48eab333cd4f3
[INFO] checking erikjohnston/rust-matrix-state against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ferikjohnston%2Frust-matrix-state" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/erikjohnston/rust-matrix-state on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/erikjohnston/rust-matrix-state
[INFO] finished tweaking git repo https://github.com/erikjohnston/rust-matrix-state
[INFO] tweaked toml for git repo https://github.com/erikjohnston/rust-matrix-state written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/erikjohnston/rust-matrix-state already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 497fa519f1fb9ea47d2af61269d4aa30d4c85e375590ae45d18ad90e113d339e
[INFO] running `"docker" "start" "-a" "497fa519f1fb9ea47d2af61269d4aa30d4c85e375590ae45d18ad90e113d339e"`
[INFO] [stderr]     Checking arrayref v0.3.4
[INFO] [stderr]     Checking constant_time_eq v0.1.3
[INFO] [stderr]     Checking byte-tools v0.2.0
[INFO] [stderr]    Compiling cc v1.0.10
[INFO] [stderr]     Checking smallvec v0.6.0
[INFO] [stderr]     Checking stable_deref_trait v1.0.0
[INFO] [stderr]     Checking fallible-iterator v0.1.4
[INFO] [stderr]     Checking md5 v0.3.7
[INFO] [stderr]     Checking rustc-demangle v0.1.7
[INFO] [stderr]    Compiling heapsize v0.4.2
[INFO] [stderr]     Checking num-traits v0.2.2
[INFO] [stderr]     Checking serde v1.0.37
[INFO] [stderr]     Checking nom v2.2.1
[INFO] [stderr]     Checking sha1 v0.6.0
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking termios v0.2.2
[INFO] [stderr]     Checking atty v0.2.8
[INFO] [stderr]    Compiling proc-macro2 v0.3.5
[INFO] [stderr]     Checking socket2 v0.3.4
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking base64 v0.6.0
[INFO] [stderr]     Checking phf_shared v0.7.21
[INFO] [stderr]     Checking clicolors-control v0.2.0
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking block-buffer v0.3.3
[INFO] [stderr]     Checking parking_lot_core v0.2.13
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking bytes v0.4.6
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]    Compiling rustc_version v0.2.2
[INFO] [stderr]     Checking stringprep v0.1.2
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]     Checking phf v0.7.21
[INFO] [stderr]    Compiling quote v0.5.1
[INFO] [stderr]     Checking generic-array v0.9.0
[INFO] [stderr]    Compiling synstructure v0.5.2
[INFO] [stderr]     Checking parking_lot v0.5.4
[INFO] [stderr]     Checking regex v0.2.10
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]    Compiling syn v0.13.1
[INFO] [stderr]     Checking digest v0.7.2
[INFO] [stderr]     Checking crypto-mac v0.5.2
[INFO] [stderr]    Compiling procinfo v0.4.2
[INFO] [stderr]    Compiling heapsize_derive v0.1.4
[INFO] [stderr]     Checking sha2 v0.7.0
[INFO] [stderr]     Checking hmac v0.5.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]     Checking postgres-protocol v0.3.2
[INFO] [stderr]     Checking console v0.6.1
[INFO] [stderr]     Checking postgres-shared v0.4.1
[INFO] [stderr]     Checking indicatif v0.9.0
[INFO] [stderr]     Checking postgres v0.15.2
[INFO] [stderr]    Compiling serde_derive_internals v0.23.0
[INFO] [stderr]    Compiling serde_derive v1.0.37
[INFO] [stderr]     Checking serde_json v1.0.13
[INFO] [stderr]     Checking backtrace v0.3.6
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking rust-state v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/state_map.rs:365:41
[INFO] [stderr]     |
[INFO] [stderr] 365 |     fn from_iter<T: IntoIterator<Item = (((String, String), E))>>(iter: T) -> StateMap<E> {
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/state_map.rs:380:41
[INFO] [stderr]     |
[INFO] [stderr] 380 |     fn from_iter<T: IntoIterator<Item = (((&'a str, &'a str), E))>>(iter: T) -> StateMap<E> {
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/state_map.rs:365:41
[INFO] [stderr]     |
[INFO] [stderr] 365 |     fn from_iter<T: IntoIterator<Item = (((String, String), E))>>(iter: T) -> StateMap<E> {
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/state_map.rs:380:41
[INFO] [stderr]     |
[INFO] [stderr] 380 |     fn from_iter<T: IntoIterator<Item = (((&'a str, &'a str), E))>>(iter: T) -> StateMap<E> {
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[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] 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] 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 enum `std::option::Option<{integer}>`
[INFO] [stderr]                found enum `std::option::Option<({integer}, {integer})>`
[INFO] [stderr]     = note: this error originates in a macro (in Nightly builds, run with -Z 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] 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] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0308`.
[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] error: could not compile `rust-state`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "497fa519f1fb9ea47d2af61269d4aa30d4c85e375590ae45d18ad90e113d339e"`
[INFO] running `"docker" "rm" "-f" "497fa519f1fb9ea47d2af61269d4aa30d4c85e375590ae45d18ad90e113d339e"`
[INFO] [stdout] 497fa519f1fb9ea47d2af61269d4aa30d4c85e375590ae45d18ad90e113d339e
