[INFO] fetching crate woah 0.4.5... [INFO] testing woah-0.4.5 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1 [INFO] extracting crate woah 0.4.5 into /workspace/builds/worker-2-tc2/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-2-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate woah 0.4.5 on toolchain b83b707f97d809763b7861afa7638871f3339a33 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0541021ab389a5e1d0a4c150d4c584504f651c4860977ecb30c29f90bcee5e6f [INFO] running `Command { std: "docker" "start" "-a" "0541021ab389a5e1d0a4c150d4c584504f651c4860977ecb30c29f90bcee5e6f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0541021ab389a5e1d0a4c150d4c584504f651c4860977ecb30c29f90bcee5e6f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0541021ab389a5e1d0a4c150d4c584504f651c4860977ecb30c29f90bcee5e6f", kill_on_drop: false }` [INFO] [stdout] 0541021ab389a5e1d0a4c150d4c584504f651c4860977ecb30c29f90bcee5e6f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 806152dbbde9d8d994a45b845527952153d5ed351d2508c8997bca5e30c75a94 [INFO] running `Command { std: "docker" "start" "-a" "806152dbbde9d8d994a45b845527952153d5ed351d2508c8997bca5e30c75a94", kill_on_drop: false }` [INFO] [stderr] Compiling either v1.6.1 [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 { [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 { [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 #31436 for more information [INFO] [stdout] = help: add `#![feature(try_blocks)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-08-28; 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 #65860 [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 #31436 for more information [INFO] [stdout] = help: add `#![feature(try_blocks)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-08-28; 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 #65860 [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.44s [INFO] running `Command { std: "docker" "inspect" "806152dbbde9d8d994a45b845527952153d5ed351d2508c8997bca5e30c75a94", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "806152dbbde9d8d994a45b845527952153d5ed351d2508c8997bca5e30c75a94", kill_on_drop: false }` [INFO] [stdout] 806152dbbde9d8d994a45b845527952153d5ed351d2508c8997bca5e30c75a94 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 73983c04f815dcaccad56fde3c5bc2d2dbf5f4d31f6df51e497ad5d4f22f83ac [INFO] running `Command { std: "docker" "start" "-a" "73983c04f815dcaccad56fde3c5bc2d2dbf5f4d31f6df51e497ad5d4f22f83ac", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.126 [INFO] [stderr] Compiling ppv-lite86 v0.2.16 [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 { [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 { [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 #31436 for more information [INFO] [stdout] = help: add `#![feature(try_blocks)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-08-28; 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 #65860 [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 #31436 for more information [INFO] [stdout] = help: add `#![feature(try_blocks)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-08-28; 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 #65860 [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] [stderr] error: could not compile `woah` (example "std_result_interop") due to 2 previous errors [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 trait `Try` is not implemented for `woah::Result<(), LocalError, FatalError>` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [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] [stderr] error: could not compile `woah` (example "basic") due to 2 previous errors [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] [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` [INFO] [stdout] | [INFO] [stdout] = help: the trait `Try` is not implemented for `woah::Result` [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 { [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` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] [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 { [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 { [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 #31436 for more information [INFO] [stdout] = help: add `#![feature(try_blocks)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-08-28; 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 #65860 [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 #31436 for more information [INFO] [stdout] = help: add `#![feature(try_blocks)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-08-28; 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 #65860 [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "73983c04f815dcaccad56fde3c5bc2d2dbf5f4d31f6df51e497ad5d4f22f83ac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "73983c04f815dcaccad56fde3c5bc2d2dbf5f4d31f6df51e497ad5d4f22f83ac", kill_on_drop: false }` [INFO] [stdout] 73983c04f815dcaccad56fde3c5bc2d2dbf5f4d31f6df51e497ad5d4f22f83ac