[INFO] fetching crate lambdas 0.1.0... [INFO] checking lambdas-0.1.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate lambdas 0.1.0 into /workspace/builds/worker-6-tc2/source [INFO] started tweaking crates.io crate lambdas 0.1.0 [INFO] finished tweaking crates.io crate lambdas 0.1.0 [INFO] tweaked toml for crates.io crate lambdas 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate lambdas 0.1.0 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 32 packages to latest compatible versions [INFO] [stderr] Adding egg v0.7.1 (available: v0.10.0) [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] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [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] 0d66e2a27838d167b19a4fd7067d386b46b3672ee62049a9cb9255caa2c9412c [INFO] running `Command { std: "docker" "start" "-a" "0d66e2a27838d167b19a4fd7067d386b46b3672ee62049a9cb9255caa2c9412c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0d66e2a27838d167b19a4fd7067d386b46b3672ee62049a9cb9255caa2c9412c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0d66e2a27838d167b19a4fd7067d386b46b3672ee62049a9cb9255caa2c9412c", kill_on_drop: false }` [INFO] [stdout] 0d66e2a27838d167b19a4fd7067d386b46b3672ee62049a9cb9255caa2c9412c [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] 475a09233fa005913f5d7a05adf1c18956c2d0b4a2d57d8253ed4fd320b04e8c [INFO] running `Command { std: "docker" "start" "-a" "475a09233fa005913f5d7a05adf1c18956c2d0b4a2d57d8253ed4fd320b04e8c", kill_on_drop: false }` [INFO] [stderr] Checking equivalent v1.0.2 [INFO] [stderr] Checking hashbrown v0.16.0 [INFO] [stderr] Checking hashbrown v0.12.3 [INFO] [stderr] Compiling serde_json v1.0.145 [INFO] [stderr] Checking cfg-if v1.0.4 [INFO] [stderr] Checking once_cell v1.21.3 [INFO] [stderr] Compiling serde_core v1.0.228 [INFO] [stderr] Compiling serde v1.0.228 [INFO] [stderr] Compiling indexmap v1.9.3 [INFO] [stderr] Checking symbolic_expressions v5.0.3 [INFO] [stderr] Checking smallvec v1.15.1 [INFO] [stderr] Checking log v0.4.28 [INFO] [stderr] Checking sexp v1.1.4 [INFO] [stderr] Compiling syn v2.0.110 [INFO] [stderr] Checking instant v0.1.13 [INFO] [stderr] Checking indexmap v2.12.0 [INFO] [stderr] Compiling serde_derive v1.0.228 [INFO] [stderr] Compiling thiserror-impl v1.0.69 [INFO] [stderr] Checking thiserror v1.0.69 [INFO] [stderr] Checking hashbrown v0.11.2 [INFO] [stderr] Checking vectorize v0.2.0 [INFO] [stderr] Checking egg v0.7.1 [INFO] [stderr] Checking lambdas v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/eval.rs:78:30 [INFO] [stdout] | [INFO] [stdout] 78 | pub fn as_eval(&self, timelimit: Option) -> Evaluator { [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] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 78 | pub fn as_eval(&self, timelimit: Option) -> Evaluator<'_, D> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/types.rs:447:24 [INFO] [stdout] | [INFO] [stdout] 447 | pub fn iter_arrows(&self) -> ArrowIter { [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] 447 | pub fn iter_arrows(&self) -> ArrowIter<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/domains/prim_lists.rs:139:29 [INFO] [stdout] | [INFO] [stdout] 139 | let s: String = p.as_str().parse().ok()?; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `lambdas` (lib) due to 1 previous error; 2 warnings emitted [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/eval.rs:78:30 [INFO] [stdout] | [INFO] [stdout] 78 | pub fn as_eval(&self, timelimit: Option) -> Evaluator { [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] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 78 | pub fn as_eval(&self, timelimit: Option) -> Evaluator<'_, D> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/types.rs:447:24 [INFO] [stdout] | [INFO] [stdout] 447 | pub fn iter_arrows(&self) -> ArrowIter { [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] 447 | pub fn iter_arrows(&self) -> ArrowIter<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/domains/prim_lists.rs:139:29 [INFO] [stdout] | [INFO] [stdout] 139 | let s: String = p.as_str().parse().ok()?; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `lambdas` (lib test) due to 1 previous error; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "475a09233fa005913f5d7a05adf1c18956c2d0b4a2d57d8253ed4fd320b04e8c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "475a09233fa005913f5d7a05adf1c18956c2d0b4a2d57d8253ed4fd320b04e8c", kill_on_drop: false }` [INFO] [stdout] 475a09233fa005913f5d7a05adf1c18956c2d0b4a2d57d8253ed4fd320b04e8c