[INFO] fetching crate shared_lib 0.1.1...
[INFO] checking shared_lib-0.1.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate shared_lib 0.1.1 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate shared_lib 0.1.1
[INFO] finished tweaking crates.io crate shared_lib 0.1.1
[INFO] tweaked toml for crates.io crate shared_lib 0.1.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate shared_lib 0.1.1 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 9 packages to latest compatible versions
[INFO] [stderr]       Adding libloading v0.8.9 (available: v0.9.0)
[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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 13648e6edb7cbec177029d25d040d7e4811c0a0c5c4ff527efc270cd13da335a
[INFO] running `Command { std: "docker" "start" "-a" "13648e6edb7cbec177029d25d040d7e4811c0a0c5c4ff527efc270cd13da335a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13648e6edb7cbec177029d25d040d7e4811c0a0c5c4ff527efc270cd13da335a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13648e6edb7cbec177029d25d040d7e4811c0a0c5c4ff527efc270cd13da335a", kill_on_drop: false }`
[INFO] [stdout] 13648e6edb7cbec177029d25d040d7e4811c0a0c5c4ff527efc270cd13da335a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] f37965eab2896c84c66ae1b391fe7cd1a78aa32e22ecc72b829b54b4d987e102
[INFO] running `Command { std: "docker" "start" "-a" "f37965eab2896c84c66ae1b391fe7cd1a78aa32e22ecc72b829b54b4d987e102", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking shared_lib v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<std::ffi::OsString, Infallible>
[INFO] [stdout]   --> src/lib.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |         path.clone().try_into().map_err(|_| {
[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: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:200:29
[INFO] [stdout]     |
[INFO] [stdout] 200 |     pub unsafe fn get_fn<T>(&self, fn_name: &str) -> Result<SharedLibFn<T>, SharedLibError> {
[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] 200 |     pub unsafe fn get_fn<T>(&self, fn_name: &str) -> Result<SharedLibFn<'_, T>, SharedLibError> {
[INFO] [stdout]     |                                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `shared_lib` (lib test) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<OsString, Infallible>
[INFO] [stdout]   --> src/lib.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |         path.clone().try_into().map_err(|_| {
[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: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:200:29
[INFO] [stdout]     |
[INFO] [stdout] 200 |     pub unsafe fn get_fn<T>(&self, fn_name: &str) -> Result<SharedLibFn<T>, SharedLibError> {
[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] 200 |     pub unsafe fn get_fn<T>(&self, fn_name: &str) -> Result<SharedLibFn<'_, T>, SharedLibError> {
[INFO] [stdout]     |                                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `shared_lib` (lib) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "f37965eab2896c84c66ae1b391fe7cd1a78aa32e22ecc72b829b54b4d987e102", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f37965eab2896c84c66ae1b391fe7cd1a78aa32e22ecc72b829b54b4d987e102", kill_on_drop: false }`
[INFO] [stdout] f37965eab2896c84c66ae1b391fe7cd1a78aa32e22ecc72b829b54b4d987e102
