[INFO] fetching crate parcours 0.3.0... [INFO] testing parcours-0.3.0 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate parcours 0.3.0 into /workspace/builds/worker-2-tc2/source [INFO] started tweaking crates.io crate parcours 0.3.0 [INFO] finished tweaking crates.io crate parcours 0.3.0 [INFO] tweaked toml for crates.io crate parcours 0.3.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate parcours 0.3.0 on toolchain beta-2025-09-21 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate parcours 0.3.0 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" "+beta-2025-09-21" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4dc4111c41bd3fcd8f3f0d18d3a8e77716155dff61f8e5c1fa97b10a3680961a [INFO] running `Command { std: "docker" "start" "-a" "4dc4111c41bd3fcd8f3f0d18d3a8e77716155dff61f8e5c1fa97b10a3680961a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4dc4111c41bd3fcd8f3f0d18d3a8e77716155dff61f8e5c1fa97b10a3680961a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4dc4111c41bd3fcd8f3f0d18d3a8e77716155dff61f8e5c1fa97b10a3680961a", kill_on_drop: false }` [INFO] [stdout] 4dc4111c41bd3fcd8f3f0d18d3a8e77716155dff61f8e5c1fa97b10a3680961a [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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3cd4dc74f2e5fa415f3e8a7523e3322695ed22967bc90af70ef7a32275b6942f [INFO] running `Command { std: "docker" "start" "-a" "3cd4dc74f2e5fa415f3e8a7523e3322695ed22967bc90af70ef7a32275b6942f", kill_on_drop: false }` [INFO] [stderr] Compiling parcours v0.3.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.33s [INFO] running `Command { std: "docker" "inspect" "3cd4dc74f2e5fa415f3e8a7523e3322695ed22967bc90af70ef7a32275b6942f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3cd4dc74f2e5fa415f3e8a7523e3322695ed22967bc90af70ef7a32275b6942f", kill_on_drop: false }` [INFO] [stdout] 3cd4dc74f2e5fa415f3e8a7523e3322695ed22967bc90af70ef7a32275b6942f [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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b48ba4f46842f5050a8652870c7fd63fa078c398625a21dbb0d80f7528431fe4 [INFO] running `Command { std: "docker" "start" "-a" "b48ba4f46842f5050a8652870c7fd63fa078c398625a21dbb0d80f7528431fe4", kill_on_drop: false }` [INFO] [stderr] Compiling parcours v0.3.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around closure body [INFO] [stdout] --> examples/lambda.rs:153:54 [INFO] [stdout] | [INFO] [stdout] 153 | with_vars(vars.clone(), lazy!(term)).map(|t| (Term::Abst(vars, Box::new(t)))) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 153 - with_vars(vars.clone(), lazy!(term)).map(|t| (Term::Abst(vars, Box::new(t)))) [INFO] [stdout] 153 + with_vars(vars.clone(), lazy!(term)).map(|t| Term::Abst(vars, Box::new(t))) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> examples/lambda.rs:44:10 [INFO] [stdout] | [INFO] [stdout] 44 | Abst(Vec<&'a str>, Box), [INFO] [stdout] | ---- ^^^^^^^^^^^^ ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `Term` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 44 - Abst(Vec<&'a str>, Box), [INFO] [stdout] 44 + Abst((), ()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> examples/lambda.rs:50:10 [INFO] [stdout] | [INFO] [stdout] 50 | Appl(Box, Vec), [INFO] [stdout] | ---- ^^^^^^^^^ ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `Term` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 50 - Appl(Box, Vec), [INFO] [stdout] 50 + Appl((), ()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> examples/lambda.rs:55:9 [INFO] [stdout] | [INFO] [stdout] 55 | Var(usize), [INFO] [stdout] | --- ^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `Term` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 55 - Var(usize), [INFO] [stdout] 55 + Var(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> examples/json.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | Arr(Vec), [INFO] [stdout] | --- ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `JsonVal` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 18 - Arr(Vec), [INFO] [stdout] 18 + Arr(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> examples/json.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | Map(Vec<(S, Self)>), [INFO] [stdout] | --- ^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `JsonVal` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 19 - Map(Vec<(S, Self)>), [INFO] [stdout] 19 + Map(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.94s [INFO] running `Command { std: "docker" "inspect" "b48ba4f46842f5050a8652870c7fd63fa078c398625a21dbb0d80f7528431fe4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b48ba4f46842f5050a8652870c7fd63fa078c398625a21dbb0d80f7528431fe4", kill_on_drop: false }` [INFO] [stdout] b48ba4f46842f5050a8652870c7fd63fa078c398625a21dbb0d80f7528431fe4 [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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 6e6f814c15d9607dbe995e8733b6068f5474f680d1543cbec37265e43f457fcd [INFO] running `Command { std: "docker" "start" "-a" "6e6f814c15d9607dbe995e8733b6068f5474f680d1543cbec37265e43f457fcd", kill_on_drop: false }` [INFO] [stderr] warning: field `0` is never read [INFO] [stderr] --> examples/json.rs:18:9 [INFO] [stderr] | [INFO] [stderr] 18 | Arr(Vec), [INFO] [stderr] | --- ^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | field in this variant [INFO] [stderr] | [INFO] [stderr] = note: `JsonVal` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stderr] | [INFO] [stderr] 18 - Arr(Vec), [INFO] [stderr] 18 + Arr(()), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: field `0` is never read [INFO] [stderr] --> examples/json.rs:19:9 [INFO] [stderr] | [INFO] [stderr] 19 | Map(Vec<(S, Self)>), [INFO] [stderr] | --- ^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | field in this variant [INFO] [stderr] | [INFO] [stderr] = note: `JsonVal` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stderr] | [INFO] [stderr] 19 - Map(Vec<(S, Self)>), [INFO] [stderr] 19 + Map(()), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: `parcours` (example "json") generated 2 warnings [INFO] [stderr] warning: unnecessary parentheses around closure body [INFO] [stderr] --> examples/lambda.rs:153:54 [INFO] [stderr] | [INFO] [stderr] 153 | with_vars(vars.clone(), lazy!(term)).map(|t| (Term::Abst(vars, Box::new(t)))) [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 153 - with_vars(vars.clone(), lazy!(term)).map(|t| (Term::Abst(vars, Box::new(t)))) [INFO] [stderr] 153 + with_vars(vars.clone(), lazy!(term)).map(|t| Term::Abst(vars, Box::new(t))) [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: fields `0` and `1` are never read [INFO] [stderr] --> examples/lambda.rs:44:10 [INFO] [stderr] | [INFO] [stderr] 44 | Abst(Vec<&'a str>, Box), [INFO] [stderr] | ---- ^^^^^^^^^^^^ ^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | fields in this variant [INFO] [stderr] | [INFO] [stderr] = note: `Term` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stderr] | [INFO] [stderr] 44 - Abst(Vec<&'a str>, Box), [INFO] [stderr] 44 + Abst((), ()), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: fields `0` and `1` are never read [INFO] [stderr] --> examples/lambda.rs:50:10 [INFO] [stderr] | [INFO] [stderr] 50 | Appl(Box, Vec), [INFO] [stderr] | ---- ^^^^^^^^^ ^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | fields in this variant [INFO] [stderr] | [INFO] [stderr] = note: `Term` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stderr] | [INFO] [stderr] 50 - Appl(Box, Vec), [INFO] [stderr] 50 + Appl((), ()), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: field `0` is never read [INFO] [stderr] --> examples/lambda.rs:55:9 [INFO] [stderr] | [INFO] [stderr] 55 | Var(usize), [INFO] [stderr] | --- ^^^^^ [INFO] [stderr] | | [INFO] [stderr] | field in this variant [INFO] [stderr] | [INFO] [stderr] = note: `Term` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stderr] | [INFO] [stderr] 55 - Var(usize), [INFO] [stderr] 55 + Var(()), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: `parcours` (example "lambda") generated 4 warnings (run `cargo fix --example "lambda"` to apply 1 suggestion) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/parcours-2b61f8cde82d356a) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests parcours [INFO] [stdout] [INFO] [stdout] running 32 tests [INFO] [stdout] test src/lib.rs - Parser (line 152) - compile fail ... ok [INFO] [stdout] test src/lib.rs - Parser (line 177) - compile fail ... ok [INFO] [stdout] test src/lib.rs - from_fn (line 225) ... ok [INFO] [stdout] test src/lib.rs - Parser (line 110) ... ok [INFO] [stdout] test src/combinator.rs - combinator::Combinator (line 55) ... ok [INFO] [stdout] test src/lib.rs - Parser (line 138) ... ok [INFO] [stdout] test src/combinator.rs - combinator::impl_any (line 263) ... ok [INFO] [stdout] test src/combinator.rs - combinator::Combinator::chain (line 173) ... ok [INFO] [stdout] test src/combinator.rs - combinator::decide (line 338) ... ok [INFO] [stdout] test src/lib.rs - from_fn (line 244) ... ok [INFO] [stdout] test src/lib.rs - lazy (line 389) - compile fail ... ok [INFO] [stdout] test src/lib.rs - lazy (line 283) ... ok [INFO] [stdout] test src/lib.rs - lazy (line 293) ... ok [INFO] [stdout] test src/combinator.rs - combinator::all (line 208) ... ok [INFO] [stdout] test src/lib.rs - lazy (line 478) - compile fail ... ok [INFO] [stdout] test src/combinator.rs - combinator::repeat (line 484) ... ok [INFO] [stdout] test src/lib.rs - (line 9) ... ok [INFO] [stdout] test src/combinator.rs - combinator::any (line 231) ... ok [INFO] [stdout] test src/lib.rs - Parser (line 185) ... ok [INFO] [stdout] test src/lib.rs - Parser (line 200) ... ok [INFO] [stdout] test src/lib.rs - lazy (line 404) ... ok [INFO] [stdout] test src/lib.rs - lazy (line 274) ... ok [INFO] [stdout] test src/lib.rs - lazy (line 435) - compile fail ... ok [INFO] [stdout] test src/lib.rs - select (line 547) ... ok [INFO] [stdout] test src/lib.rs - lazy (line 371) ... ok [INFO] [stdout] test src/lib.rs - lazy (line 457) ... ok [INFO] [stdout] test src/lib.rs - lazy (line 353) ... ok [INFO] [stdout] test src/lib.rs - select (line 532) ... ok [INFO] [stdout] test src/str.rs - str::with_consumed (line 107) ... ok [INFO] [stdout] test src/prec_climb.rs - prec_climb (line 17) ... ok [INFO] [stdout] test src/str.rs - str::offset (line 83) ... ok [INFO] [stdout] test src/lib.rs - lazy (line 307) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 32 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.51s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "6e6f814c15d9607dbe995e8733b6068f5474f680d1543cbec37265e43f457fcd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6e6f814c15d9607dbe995e8733b6068f5474f680d1543cbec37265e43f457fcd", kill_on_drop: false }` [INFO] [stdout] 6e6f814c15d9607dbe995e8733b6068f5474f680d1543cbec37265e43f457fcd