[INFO] fetching crate ironworks 0.4.1...
[INFO] checking ironworks-0.4.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate ironworks 0.4.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate ironworks 0.4.1
[INFO] finished tweaking crates.io crate ironworks 0.4.1
[INFO] tweaked toml for crates.io crate ironworks 0.4.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ironworks 0.4.1 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 38 packages to latest compatible versions
[INFO] [stderr]       Adding binrw v0.8.4 (available: v0.15.0)
[INFO] [stderr]       Adding enum-as-inner v0.4.0 (available: v0.6.1)
[INFO] [stderr]       Adding half v1.8.3 (available: v2.7.1)
[INFO] [stderr]       Adding modular-bitfield v0.11.2 (available: v0.13.0)
[INFO] [stderr]       Adding num_enum v0.5.11 (available: v0.7.5)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 370935f2140b88209c294e6baca1cf4131fbd6b652706330afa76ba0e4bb5a59
[INFO] running `Command { std: "docker" "start" "-a" "370935f2140b88209c294e6baca1cf4131fbd6b652706330afa76ba0e4bb5a59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "370935f2140b88209c294e6baca1cf4131fbd6b652706330afa76ba0e4bb5a59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "370935f2140b88209c294e6baca1cf4131fbd6b652706330afa76ba0e4bb5a59", kill_on_drop: false }`
[INFO] [stdout] 370935f2140b88209c294e6baca1cf4131fbd6b652706330afa76ba0e4bb5a59
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 44ff29a4142be8225afa25c032419ddfff034fb3d56f9f834905568293e0eb76
[INFO] running `Command { std: "docker" "start" "-a" "44ff29a4142be8225afa25c032419ddfff034fb3d56f9f834905568293e0eb76", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling binrw_derive v0.8.4
[INFO] [stderr]    Compiling owo-colors v3.5.0
[INFO] [stderr]     Checking array-init v2.1.0
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro-error-attr2 v2.0.0
[INFO] [stderr]    Compiling proc-macro-error2 v2.0.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling getset v0.1.6
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]     Checking binrw v0.8.4
[INFO] [stderr]     Checking ironworks v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `HashMapCacheExt` and `HashMapCache`
[INFO] [stdout]  --> src/utility/mod.rs:4:26
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use hash_map_cache::{HashMapCache, HashMapCacheExt};
[INFO] [stdout]   |                          ^^^^^^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `OptionCacheExt` and `OptionCache`
[INFO] [stdout]  --> src/utility/mod.rs:5:24
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use option_cache::{OptionCache, OptionCacheExt};
[INFO] [stdout]   |                        ^^^^^^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `HashMapCacheExt` and `HashMapCache`
[INFO] [stdout]  --> src/utility/mod.rs:4:26
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use hash_map_cache::{HashMapCache, HashMapCacheExt};
[INFO] [stdout]   |                          ^^^^^^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `OptionCacheExt` and `OptionCache`
[INFO] [stdout]  --> src/utility/mod.rs:5:24
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use option_cache::{OptionCache, OptionCacheExt};
[INFO] [stdout]   |                        ^^^^^^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `HashMapCache` is never used
[INFO] [stdout]  --> src/utility/hash_map_cache.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub type HashMapCache<K, V> = Mutex<HashMap<K, Arc<V>>>;
[INFO] [stdout]   |          ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `HashMapCacheExt` is never used
[INFO] [stdout]  --> src/utility/hash_map_cache.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub trait HashMapCacheExt<K, V> {
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `OptionCache` is never used
[INFO] [stdout]  --> src/utility/option_cache.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub type OptionCache<T> = Mutex<Option<Arc<T>>>;
[INFO] [stdout]   |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `OptionCacheExt` is never used
[INFO] [stdout]  --> src/utility/option_cache.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub trait OptionCacheExt<T> {
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Arc<u8>, Infallible>
[INFO] [stdout]   --> src/utility/hash_map_cache.rs:43:3
[INFO] [stdout]    |
[INFO] [stdout] 43 | /         cache
[INFO] [stdout] 44 | |             .try_get_or_insert(0, || -> Result<u8, Infallible> {
[INFO] [stdout] 45 | |                 count += 1;
[INFO] [stdout] 46 | |                 Ok(0)
[INFO] [stdout] 47 | |             })
[INFO] [stdout]    | |______________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<u8, Infallible>
[INFO] [stdout]   --> src/utility/hash_map_cache.rs:44:55
[INFO] [stdout]    |
[INFO] [stdout] 44 |               .try_get_or_insert(0, || -> Result<u8, Infallible> {
[INFO] [stdout]    |  ________________________________________________________________^
[INFO] [stdout] 45 | |                 count += 1;
[INFO] [stdout] 46 | |                 Ok(0)
[INFO] [stdout] 47 | |             })
[INFO] [stdout]    | |_____________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<u8, Infallible>
[INFO] [stdout]   --> src/utility/hash_map_cache.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |                 Ok(0)
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Arc<u8>, Infallible>
[INFO] [stdout]   --> src/utility/hash_map_cache.rs:49:3
[INFO] [stdout]    |
[INFO] [stdout] 49 | /         cache
[INFO] [stdout] 50 | |             .try_get_or_insert(1, || -> Result<u8, Infallible> {
[INFO] [stdout] 51 | |                 count += 1;
[INFO] [stdout] 52 | |                 Ok(1)
[INFO] [stdout] 53 | |             })
[INFO] [stdout]    | |______________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<u8, Infallible>
[INFO] [stdout]   --> src/utility/hash_map_cache.rs:50:55
[INFO] [stdout]    |
[INFO] [stdout] 50 |               .try_get_or_insert(1, || -> Result<u8, Infallible> {
[INFO] [stdout]    |  ________________________________________________________________^
[INFO] [stdout] 51 | |                 count += 1;
[INFO] [stdout] 52 | |                 Ok(1)
[INFO] [stdout] 53 | |             })
[INFO] [stdout]    | |_____________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<u8, Infallible>
[INFO] [stdout]   --> src/utility/hash_map_cache.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |                 Ok(1)
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Arc<u8>, Infallible>
[INFO] [stdout]   --> src/utility/hash_map_cache.rs:55:15
[INFO] [stdout]    |
[INFO] [stdout] 55 |           let value = cache
[INFO] [stdout]    |  _____________________^
[INFO] [stdout] 56 | |             .try_get_or_insert(1, || -> Result<u8, Infallible> {
[INFO] [stdout] 57 | |                 count += 1;
[INFO] [stdout] 58 | |                 Ok(2)
[INFO] [stdout] 59 | |             })
[INFO] [stdout]    | |______________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<u8, Infallible>
[INFO] [stdout]   --> src/utility/hash_map_cache.rs:56:55
[INFO] [stdout]    |
[INFO] [stdout] 56 |               .try_get_or_insert(1, || -> Result<u8, Infallible> {
[INFO] [stdout]    |  ________________________________________________________________^
[INFO] [stdout] 57 | |                 count += 1;
[INFO] [stdout] 58 | |                 Ok(2)
[INFO] [stdout] 59 | |             })
[INFO] [stdout]    | |_____________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<u8, Infallible>
[INFO] [stdout]   --> src/utility/hash_map_cache.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 58 |                 Ok(2)
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Arc<u8>, Infallible>
[INFO] [stdout]   --> src/utility/hash_map_cache.rs:70:15
[INFO] [stdout]    |
[INFO] [stdout] 70 |           let value = cache
[INFO] [stdout]    |  _____________________^
[INFO] [stdout] 71 | |             .try_get_or_insert(1, || -> Result<u8, Infallible> { Ok(1) })
[INFO] [stdout]    | |_________________________________________________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<u8, Infallible>
[INFO] [stdout]   --> src/utility/hash_map_cache.rs:71:55
[INFO] [stdout]    |
[INFO] [stdout] 71 |             .try_get_or_insert(1, || -> Result<u8, Infallible> { Ok(1) })
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<u8, Infallible>
[INFO] [stdout]   --> src/utility/hash_map_cache.rs:71:57
[INFO] [stdout]    |
[INFO] [stdout] 71 |             .try_get_or_insert(1, || -> Result<u8, Infallible> { Ok(1) })
[INFO] [stdout]    |                                                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Arc<u8>, Infallible>
[INFO] [stdout]   --> src/utility/option_cache.rs:34:3
[INFO] [stdout]    |
[INFO] [stdout] 34 | /         cache
[INFO] [stdout] 35 | |             .try_get_or_insert(|| -> Result<u8, Infallible> {
[INFO] [stdout] 36 | |                 count += 1;
[INFO] [stdout] 37 | |                 Ok(1)
[INFO] [stdout] 38 | |             })
[INFO] [stdout]    | |______________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<u8, Infallible>
[INFO] [stdout]   --> src/utility/option_cache.rs:35:52
[INFO] [stdout]    |
[INFO] [stdout] 35 |               .try_get_or_insert(|| -> Result<u8, Infallible> {
[INFO] [stdout]    |  _____________________________________________________________^
[INFO] [stdout] 36 | |                 count += 1;
[INFO] [stdout] 37 | |                 Ok(1)
[INFO] [stdout] 38 | |             })
[INFO] [stdout]    | |_____________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<u8, Infallible>
[INFO] [stdout]   --> src/utility/option_cache.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |                 Ok(1)
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Arc<u8>, Infallible>
[INFO] [stdout]   --> src/utility/option_cache.rs:40:15
[INFO] [stdout]    |
[INFO] [stdout] 40 |           let value = cache
[INFO] [stdout]    |  _____________________^
[INFO] [stdout] 41 | |             .try_get_or_insert(|| -> Result<u8, Infallible> {
[INFO] [stdout] 42 | |                 count += 1;
[INFO] [stdout] 43 | |                 Ok(2)
[INFO] [stdout] 44 | |             })
[INFO] [stdout]    | |______________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<u8, Infallible>
[INFO] [stdout]   --> src/utility/option_cache.rs:41:52
[INFO] [stdout]    |
[INFO] [stdout] 41 |               .try_get_or_insert(|| -> Result<u8, Infallible> {
[INFO] [stdout]    |  _____________________________________________________________^
[INFO] [stdout] 42 | |                 count += 1;
[INFO] [stdout] 43 | |                 Ok(2)
[INFO] [stdout] 44 | |             })
[INFO] [stdout]    | |_____________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<u8, Infallible>
[INFO] [stdout]   --> src/utility/option_cache.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |                 Ok(2)
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Arc<u8>, Infallible>
[INFO] [stdout]   --> src/utility/option_cache.rs:55:15
[INFO] [stdout]    |
[INFO] [stdout] 55 |           let value = cache
[INFO] [stdout]    |  _____________________^
[INFO] [stdout] 56 | |             .try_get_or_insert(|| -> Result<u8, Infallible> { Ok(1) })
[INFO] [stdout]    | |______________________________________________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<u8, Infallible>
[INFO] [stdout]   --> src/utility/option_cache.rs:56:52
[INFO] [stdout]    |
[INFO] [stdout] 56 |             .try_get_or_insert(|| -> Result<u8, Infallible> { Ok(1) })
[INFO] [stdout]    |                                                             ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<u8, Infallible>
[INFO] [stdout]   --> src/utility/option_cache.rs:56:54
[INFO] [stdout]    |
[INFO] [stdout] 56 |             .try_get_or_insert(|| -> Result<u8, Infallible> { Ok(1) })
[INFO] [stdout]    |                                                               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ironworks` (lib test) due to 21 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "44ff29a4142be8225afa25c032419ddfff034fb3d56f9f834905568293e0eb76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44ff29a4142be8225afa25c032419ddfff034fb3d56f9f834905568293e0eb76", kill_on_drop: false }`
[INFO] [stdout] 44ff29a4142be8225afa25c032419ddfff034fb3d56f9f834905568293e0eb76
