[INFO] fetching crate woah 0.4.5...
[INFO] testing woah-0.4.5 against master#ec6f9a5b4413f74386267ef8efc93712c2ce6db6 for pr-155739-1
[INFO] extracting crate woah 0.4.5 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate woah 0.4.5
[INFO] finished tweaking crates.io crate woah 0.4.5
[INFO] tweaked toml for crates.io crate woah 0.4.5 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate woah 0.4.5 on toolchain ec6f9a5b4413f74386267ef8efc93712c2ce6db6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate woah 0.4.5 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" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde v1.0.137
[INFO] [stderr]   Downloaded libc v0.2.126
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6ac4fc3919534d12f3a4608a2a94c0b6c45294af09b691a0c23613206623e954
[INFO] running `Command { std: "docker" "start" "-a" "6ac4fc3919534d12f3a4608a2a94c0b6c45294af09b691a0c23613206623e954", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ac4fc3919534d12f3a4608a2a94c0b6c45294af09b691a0c23613206623e954", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ac4fc3919534d12f3a4608a2a94c0b6c45294af09b691a0c23613206623e954", kill_on_drop: false }`
[INFO] [stdout] 6ac4fc3919534d12f3a4608a2a94c0b6c45294af09b691a0c23613206623e954
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71f3eb0463f8791c6e2a6e3491df26ec34e79f8593b49a173cc5c71353351d93
[INFO] running `Command { std: "docker" "start" "-a" "71f3eb0463f8791c6e2a6e3491df26ec34e79f8593b49a173cc5c71353351d93", kill_on_drop: false }`
[INFO] [stderr]    Compiling woah v0.4.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:1122:17
[INFO] [stdout]      |
[INFO] [stdout] 1122 |     pub fn iter(&self) -> Iter<T> {
[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] 1122 |     pub fn iter(&self) -> Iter<'_, T> {
[INFO] [stdout]      |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:1153:21
[INFO] [stdout]      |
[INFO] [stdout] 1153 |     pub fn iter_mut(&mut self) -> IterMut<T> {
[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] 1153 |     pub fn iter_mut(&mut self) -> IterMut<'_, T> {
[INFO] [stdout]      |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `try` blocks are unstable
[INFO] [stdout]     --> src/lib.rs:2142:36
[INFO] [stdout]      |
[INFO] [stdout] 2142 |                 ControlFlow::Break(try { acc })
[INFO] [stdout]      |                                    ^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: see issue #154391 <https://github.com/rust-lang/rust/issues/154391> for more information
[INFO] [stdout]      = help: add `#![feature(try_blocks)]` to the crate attributes to enable
[INFO] [stdout]      = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]      = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]      = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `try` blocks are unstable
[INFO] [stdout]     --> src/lib.rs:2146:36
[INFO] [stdout]      |
[INFO] [stdout] 2146 |                 ControlFlow::Break(try { acc })
[INFO] [stdout]      |                                    ^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: see issue #154391 <https://github.com/rust-lang/rust/issues/154391> for more information
[INFO] [stdout]      = help: add `#![feature(try_blocks)]` to the crate attributes to enable
[INFO] [stdout]      = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]      = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]      = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "71f3eb0463f8791c6e2a6e3491df26ec34e79f8593b49a173cc5c71353351d93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71f3eb0463f8791c6e2a6e3491df26ec34e79f8593b49a173cc5c71353351d93", kill_on_drop: false }`
[INFO] [stdout] 71f3eb0463f8791c6e2a6e3491df26ec34e79f8593b49a173cc5c71353351d93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed70ce8522fbecb0023ef86bcd01da67ac88a8296b71170c58881e4749702956
[INFO] running `Command { std: "docker" "start" "-a" "ed70ce8522fbecb0023ef86bcd01da67ac88a8296b71170c58881e4749702956", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:1122:17
[INFO] [stdout]      |
[INFO] [stdout] 1122 |     pub fn iter(&self) -> Iter<T> {
[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] 1122 |     pub fn iter(&self) -> Iter<'_, T> {
[INFO] [stdout]      |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:1153:21
[INFO] [stdout]      |
[INFO] [stdout] 1153 |     pub fn iter_mut(&mut self) -> IterMut<T> {
[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] 1153 |     pub fn iter_mut(&mut self) -> IterMut<'_, T> {
[INFO] [stdout]      |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `try` blocks are unstable
[INFO] [stdout]     --> src/lib.rs:2142:36
[INFO] [stdout]      |
[INFO] [stdout] 2142 |                 ControlFlow::Break(try { acc })
[INFO] [stdout]      |                                    ^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: see issue #154391 <https://github.com/rust-lang/rust/issues/154391> for more information
[INFO] [stdout]      = help: add `#![feature(try_blocks)]` to the crate attributes to enable
[INFO] [stdout]      = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]      = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]      = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `try` blocks are unstable
[INFO] [stdout]     --> src/lib.rs:2146:36
[INFO] [stdout]      |
[INFO] [stdout] 2146 |                 ControlFlow::Break(try { acc })
[INFO] [stdout]      |                                    ^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: see issue #154391 <https://github.com/rust-lang/rust/issues/154391> for more information
[INFO] [stdout]      = help: add `#![feature(try_blocks)]` to the crate attributes to enable
[INFO] [stdout]      = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]      = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]      = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling woah v0.4.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: the `?` operator can only be applied to values that implement `Try`
[INFO] [stdout]   --> examples/std_result_interop.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let _ = returns_woah_result()?;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^ the `?` operator cannot be applied to type `woah::Result<(), LocalError, FatalError>`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the nightly-only, unstable trait `Try` is not implemented for `woah::Result<(), LocalError, FatalError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> examples/std_result_interop.rs:36:33
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn std_to_woah() -> Result<(), LocalError, FatalError> {
[INFO] [stdout]    | ------------------------------------------------------ this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] 36 |     let _ = returns_std_result()?;
[INFO] [stdout]    |                                 ^ cannot use the `?` operator in a function that returns `woah::Result<(), LocalError, FatalError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `woah` (example "std_result_interop") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0277]: the `?` operator can only be applied to values that implement `Try`
[INFO] [stdout]   --> examples/basic.rs:23:11
[INFO] [stdout]    |
[INFO] [stdout] 23 |     match do_http_request()? {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^ the `?` operator cannot be applied to type `woah::Result<String, LocalError, FatalError>`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the nightly-only, unstable trait `Try` is not implemented for `woah::Result<String, LocalError, FatalError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> examples/basic.rs:23:28
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn get_data() -> RequestResult<String> {
[INFO] [stdout]    | -------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] 23 |     match do_http_request()? {
[INFO] [stdout]    |                            ^ cannot use the `?` operator in a function that returns `woah::Result<String, LocalError, FatalError>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `woah` (example "basic") due to 2 previous errors
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:1122:17
[INFO] [stdout]      |
[INFO] [stdout] 1122 |     pub fn iter(&self) -> Iter<T> {
[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] 1122 |     pub fn iter(&self) -> Iter<'_, T> {
[INFO] [stdout]      |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:1153:21
[INFO] [stdout]      |
[INFO] [stdout] 1153 |     pub fn iter_mut(&mut self) -> IterMut<T> {
[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] 1153 |     pub fn iter_mut(&mut self) -> IterMut<'_, T> {
[INFO] [stdout]      |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `try` blocks are unstable
[INFO] [stdout]     --> src/lib.rs:2142:36
[INFO] [stdout]      |
[INFO] [stdout] 2142 |                 ControlFlow::Break(try { acc })
[INFO] [stdout]      |                                    ^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: see issue #154391 <https://github.com/rust-lang/rust/issues/154391> for more information
[INFO] [stdout]      = help: add `#![feature(try_blocks)]` to the crate attributes to enable
[INFO] [stdout]      = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]      = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]      = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `try` blocks are unstable
[INFO] [stdout]     --> src/lib.rs:2146:36
[INFO] [stdout]      |
[INFO] [stdout] 2146 |                 ControlFlow::Break(try { acc })
[INFO] [stdout]      |                                    ^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: see issue #154391 <https://github.com/rust-lang/rust/issues/154391> for more information
[INFO] [stdout]      = help: add `#![feature(try_blocks)]` to the crate attributes to enable
[INFO] [stdout]      = note: this compiler was built on 2026-04-24; consider upgrading it if it is out of date
[INFO] [stdout]      = warning: unstable syntax can change at any point in the future, causing a hard error!
[INFO] [stdout]      = note: for more information, see issue #154045 <https://github.com/rust-lang/rust/issues/154045>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ed70ce8522fbecb0023ef86bcd01da67ac88a8296b71170c58881e4749702956", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed70ce8522fbecb0023ef86bcd01da67ac88a8296b71170c58881e4749702956", kill_on_drop: false }`
[INFO] [stdout] ed70ce8522fbecb0023ef86bcd01da67ac88a8296b71170c58881e4749702956
