[INFO] fetching crate yash-arith 0.2.2... [INFO] checking yash-arith-0.2.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate yash-arith 0.2.2 into /workspace/builds/worker-1-tc2/source [INFO] started tweaking crates.io crate yash-arith 0.2.2 [INFO] finished tweaking crates.io crate yash-arith 0.2.2 [INFO] tweaked toml for crates.io crate yash-arith 0.2.2 written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate yash-arith 0.2.2 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 6 packages to latest compatible versions [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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] d288e5b904fbb19f989498e3f8cf51bbecc5b24cc296ab18983d2728c08e9a92 [INFO] running `Command { std: "docker" "start" "-a" "d288e5b904fbb19f989498e3f8cf51bbecc5b24cc296ab18983d2728c08e9a92", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d288e5b904fbb19f989498e3f8cf51bbecc5b24cc296ab18983d2728c08e9a92", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d288e5b904fbb19f989498e3f8cf51bbecc5b24cc296ab18983d2728c08e9a92", kill_on_drop: false }` [INFO] [stdout] d288e5b904fbb19f989498e3f8cf51bbecc5b24cc296ab18983d2728c08e9a92 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 28143a702ab6d411e5af01336535fe67aa4d690dabb1c3be3cf62c823df7cbce [INFO] running `Command { std: "docker" "start" "-a" "28143a702ab6d411e5af01336535fe67aa4d690dabb1c3be3cf62c823df7cbce", kill_on_drop: false }` [INFO] [stderr] Compiling syn v2.0.110 [INFO] [stderr] Compiling thiserror-impl v2.0.17 [INFO] [stderr] Checking thiserror v2.0.17 [INFO] [stderr] Checking yash-arith v0.2.2 (/opt/rustwide/workdir) [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/env.rs:61:76 [INFO] [stdout] | [INFO] [stdout] 61 | fn get_variable(&self, name: &str) -> Result, Infallible> { [INFO] [stdout] | ____________________________________________________________________________^ [INFO] [stdout] 62 | | Ok(self.get(name).map(String::as_str)) [INFO] [stdout] 63 | | } [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, Infallible> [INFO] [stdout] --> src/env.rs:62:9 [INFO] [stdout] | [INFO] [stdout] 62 | Ok(self.get(name).map(String::as_str)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/env.rs:80:76 [INFO] [stdout] | [INFO] [stdout] 80 | fn get_variable(&self, name: &str) -> Result, Infallible> { [INFO] [stdout] | ____________________________________________________________________________^ [INFO] [stdout] 81 | | Ok(self.get(name).map(String::as_str)) [INFO] [stdout] 82 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/env.rs:81:9 [INFO] [stdout] | [INFO] [stdout] 81 | Ok(self.get(name).map(String::as_str)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `yash-arith` (lib) due to 4 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/ast.rs:519:26 [INFO] [stdout] | [INFO] [stdout] 519 | fn parse_str(source: &str) -> Result, Error> { [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] 519 | fn parse_str(source: &str) -> Result>, Error> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/env.rs:61:76 [INFO] [stdout] | [INFO] [stdout] 61 | fn get_variable(&self, name: &str) -> Result, Infallible> { [INFO] [stdout] | ____________________________________________________________________________^ [INFO] [stdout] 62 | | Ok(self.get(name).map(String::as_str)) [INFO] [stdout] 63 | | } [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, Infallible> [INFO] [stdout] --> src/env.rs:62:9 [INFO] [stdout] | [INFO] [stdout] 62 | Ok(self.get(name).map(String::as_str)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/env.rs:80:76 [INFO] [stdout] | [INFO] [stdout] 80 | fn get_variable(&self, name: &str) -> Result, Infallible> { [INFO] [stdout] | ____________________________________________________________________________^ [INFO] [stdout] 81 | | Ok(self.get(name).map(String::as_str)) [INFO] [stdout] 82 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/env.rs:81:9 [INFO] [stdout] | [INFO] [stdout] 81 | Ok(self.get(name).map(String::as_str)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `yash-arith` (lib test) due to 4 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "28143a702ab6d411e5af01336535fe67aa4d690dabb1c3be3cf62c823df7cbce", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "28143a702ab6d411e5af01336535fe67aa4d690dabb1c3be3cf62c823df7cbce", kill_on_drop: false }` [INFO] [stdout] 28143a702ab6d411e5af01336535fe67aa4d690dabb1c3be3cf62c823df7cbce