[INFO] cloning repository https://github.com/smessmer/lockable
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/smessmer/lockable" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsmessmer%2Flockable", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsmessmer%2Flockable'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6f80bb14ac951926291678e19fdd7f27a8ec5809
[INFO] checking smessmer/lockable against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsmessmer%2Flockable" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/smessmer/lockable
[INFO] finished tweaking git repo https://github.com/smessmer/lockable
[INFO] tweaked toml for git repo https://github.com/smessmer/lockable written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/smessmer/lockable on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/smessmer/lockable already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc1704d6c7789a2e2abb4efbde413937dad8e83773c7b8dfa3b89a2ccd699224
[INFO] running `Command { std: "docker" "start" "-a" "dc1704d6c7789a2e2abb4efbde413937dad8e83773c7b8dfa3b89a2ccd699224", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc1704d6c7789a2e2abb4efbde413937dad8e83773c7b8dfa3b89a2ccd699224", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc1704d6c7789a2e2abb4efbde413937dad8e83773c7b8dfa3b89a2ccd699224", kill_on_drop: false }`
[INFO] [stdout] dc1704d6c7789a2e2abb4efbde413937dad8e83773c7b8dfa3b89a2ccd699224
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c123ffc10b4d9f8d50a2337a874c56a6a6686e5d2feb078b8ff5a4d1b2d4fe3
[INFO] running `Command { std: "docker" "start" "-a" "5c123ffc10b4d9f8d50a2337a874c56a6a6686e5d2feb078b8ff5a4d1b2d4fe3", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]     Checking half v2.6.0
[INFO] [stderr]     Checking plotters-backend v0.3.7
[INFO] [stderr]     Checking ciborium-io v0.2.2
[INFO] [stderr]     Checking clap_lex v0.7.4
[INFO] [stderr]     Checking hashbrown v0.15.4
[INFO] [stderr]     Checking clap_builder v4.5.39
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking ciborium-ll v0.2.2
[INFO] [stderr]     Checking plotters-svg v0.3.7
[INFO] [stderr]     Checking itertools v0.14.0
[INFO] [stderr]     Checking oorandom v11.1.5
[INFO] [stderr]     Checking lru v0.14.0
[INFO] [stderr]     Checking plotters v0.3.7
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking clap v4.5.39
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling derive_more-impl v2.0.1
[INFO] [stderr]     Checking tokio v1.45.1
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking derive_more v2.0.1
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking lockable v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lockable_hash_map.rs:36:27
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn get_or_insert_none(&mut self, key: &K) -> GetOrInsertNoneResult<Entry<V>> {
[INFO] [stdout]    |                           ^^^^^^^^^              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn get_or_insert_none(&mut self, key: &K) -> GetOrInsertNoneResult<'_, Entry<V>> {
[INFO] [stdout]    |                                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lockable_lru_cache.rs:41:27
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn get_or_insert_none(&mut self, key: &K) -> GetOrInsertNoneResult<Entry<V>> {
[INFO] [stdout]    |                           ^^^^^^^^^              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn get_or_insert_none(&mut self, key: &K) -> GetOrInsertNoneResult<'_, Entry<V>> {
[INFO] [stdout]    |                                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this type continue be must used: Result<Guard<K, (), LockableHashMapConfig, &LockableMapImpl<K, (), LockableHashMapConfig>>, Never>
[INFO] [stdout]    --> src/lockpool.rs:177:9
[INFO] [stdout]     |
[INFO] [stdout] 177 | /         self.map
[INFO] [stdout] 178 | |             .blocking_lock(key, SyncLimit::no_limit())
[INFO] [stdout]     | |______________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mustuse_in_always_ok)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Option<Guard<K, (), LockableHashMapConfig, &LockableMapImpl<K, (), LockableHashMapConfig>>>, Never>
[INFO] [stdout]    --> src/lockpool.rs:249:9
[INFO] [stdout]     |
[INFO] [stdout] 249 | /         self.map
[INFO] [stdout] 250 | |             .try_lock(key, SyncLimit::no_limit())
[INFO] [stdout]     | |_________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this type continue be must used: Result<Guard<K, (), LockableHashMapConfig, &LockableMapImpl<K, (), LockableHashMapConfig>>, Never>
[INFO] [stdout]    --> src/lockpool.rs:321:9
[INFO] [stdout]     |
[INFO] [stdout] 321 | /         self.map
[INFO] [stdout] 322 | |             .async_lock(key, AsyncLimit::no_limit())
[INFO] [stdout] 323 | |             .await
[INFO] [stdout]     | |__________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this type continue be must used: Result<Guard<K, (), LockableHashMapConfig, &LockableMapImpl<K, (), LockableHashMapConfig>>, Never>
[INFO] [stdout]    --> src/lockpool.rs:323:14
[INFO] [stdout]     |
[INFO] [stdout] 323 |             .await
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this type continue be must used: Result<Guard<K, (), LockableHashMapConfig, &LockableMapImpl<K, (), LockableHashMapConfig>>, Never>
[INFO] [stdout]    --> src/lockpool.rs:321:9
[INFO] [stdout]     |
[INFO] [stdout] 321 | /         self.map
[INFO] [stdout] 322 | |             .async_lock(key, AsyncLimit::no_limit())
[INFO] [stdout] 323 | |             .await
[INFO] [stdout]     | |__________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lockable` (lib) due to 1 previous error; 6 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "5c123ffc10b4d9f8d50a2337a874c56a6a6686e5d2feb078b8ff5a4d1b2d4fe3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c123ffc10b4d9f8d50a2337a874c56a6a6686e5d2feb078b8ff5a4d1b2d4fe3", kill_on_drop: false }`
[INFO] [stdout] 5c123ffc10b4d9f8d50a2337a874c56a6a6686e5d2feb078b8ff5a4d1b2d4fe3
