[INFO] fetching crate kodept-inference 0.2.3...
[INFO] checking kodept-inference-0.2.3 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate kodept-inference 0.2.3 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate kodept-inference 0.2.3
[INFO] finished tweaking crates.io crate kodept-inference 0.2.3
[INFO] tweaked toml for crates.io crate kodept-inference 0.2.3 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate kodept-inference 0.2.3 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 40 packages to latest compatible versions
[INFO] [stderr]       Adding derive_more v0.99.20 (available: v2.0.1)
[INFO] [stderr]       Adding itertools v0.13.0 (available: v0.14.0)
[INFO] [stderr]       Adding nonempty-collections v0.2.9 (available: v1.2.1)
[INFO] [stderr]       Adding rstest v0.19.0 (available: v0.26.1)
[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] 21ece0f10e4c167dbbf87b2455b2a1af0dd851d09c13c151ac0f6a4c851ed93a
[INFO] running `Command { std: "docker" "start" "-a" "21ece0f10e4c167dbbf87b2455b2a1af0dd851d09c13c151ac0f6a4c851ed93a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21ece0f10e4c167dbbf87b2455b2a1af0dd851d09c13c151ac0f6a4c851ed93a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21ece0f10e4c167dbbf87b2455b2a1af0dd851d09c13c151ac0f6a4c851ed93a", kill_on_drop: false }`
[INFO] [stdout] 21ece0f10e4c167dbbf87b2455b2a1af0dd851d09c13c151ac0f6a4c851ed93a
[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] 429a69a5501f54e10c8317c6c61574af39a74e3f65e9b2170b3c0a875763f8b8
[INFO] running `Command { std: "docker" "start" "-a" "429a69a5501f54e10c8317c6c61574af39a74e3f65e9b2170b3c0a875763f8b8", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]    Compiling relative-path v1.9.3
[INFO] [stderr]    Compiling glob v0.3.3
[INFO] [stderr]    Compiling cfg-if v1.0.4
[INFO] [stderr]     Checking itertools v0.13.0
[INFO] [stderr]     Checking nonempty-collections v0.2.9
[INFO] [stderr]    Compiling rstest_macros v0.19.0
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling derive_more v0.99.20
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking kodept-inference v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/assumption.rs:96:19
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub fn get<K>(&self, key: &K) -> Cow<[MonomorphicType]>
[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] 96 |     pub fn get<K>(&self, key: &K) -> Cow<'_, [MonomorphicType]>
[INFO] [stdout]    |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/assumption.rs:176:18
[INFO] [stdout]     |
[INFO] [stdout] 176 |     fn maybe_get(&self, key: &Var) -> Result<Option<Cow<PolymorphicType>>, Self::Error> {
[INFO] [stdout]     |                  ^^^^^ the lifetime is elided here  ^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden 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] 176 |     fn maybe_get(&self, key: &Var) -> Result<Option<Cow<'_, PolymorphicType>>, Self::Error> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Option<Cow<'_, PolymorphicType>>, Infallible>
[INFO] [stdout]    --> src/assumption.rs:176:89
[INFO] [stdout]     |
[INFO] [stdout] 176 |       fn maybe_get(&self, key: &Var) -> Result<Option<Cow<PolymorphicType>>, Self::Error> {
[INFO] [stdout]     |  _________________________________________________________________________________________^
[INFO] [stdout] 177 | |         Ok(self.0.get(key).map(Cow::Borrowed))
[INFO] [stdout] 178 | |     }
[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: Result<Option<Cow<'_, PolymorphicType>>, Infallible>
[INFO] [stdout]    --> src/assumption.rs:177:9
[INFO] [stdout]     |
[INFO] [stdout] 177 |         Ok(self.0.get(key).map(Cow::Borrowed))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/traits.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn get(&self, key: &Key) -> Option<Cow<PolymorphicType>> where Self::Error: Debug {
[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] 33 |     fn get(&self, key: &Key) -> Option<Cow<'_, PolymorphicType>> where Self::Error: Debug {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/traits.rs:37:18
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn maybe_get(&self, key: &Key) -> Result<Option<Cow<PolymorphicType>>, Self::Error>; 
[INFO] [stdout]    |                  ^^^^^ the lifetime is elided here  ^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden 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] 37 |     fn maybe_get(&self, key: &Key) -> Result<Option<Cow<'_, PolymorphicType>>, Self::Error>; 
[INFO] [stdout]    |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kodept-inference` (lib) due to 2 previous errors; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "429a69a5501f54e10c8317c6c61574af39a74e3f65e9b2170b3c0a875763f8b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "429a69a5501f54e10c8317c6c61574af39a74e3f65e9b2170b3c0a875763f8b8", kill_on_drop: false }`
[INFO] [stdout] 429a69a5501f54e10c8317c6c61574af39a74e3f65e9b2170b3c0a875763f8b8
