[INFO] fetching crate parol 0.25.0... [INFO] checking parol-0.25.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate parol 0.25.0 into /workspace/builds/worker-6-tc1/source [INFO] validating manifest of crates.io crate parol 0.25.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate parol 0.25.0 [INFO] removed 9 missing examples [INFO] finished tweaking crates.io crate parol 0.25.0 [INFO] tweaked toml for crates.io crate parol 0.25.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate crates.io crate parol 0.25.0 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded xml_writer v0.4.0 [INFO] [stderr] Downloaded ume v0.1.0 [INFO] [stderr] Downloaded syntree_layout v0.2.0 [INFO] [stderr] Downloaded ts-rs v7.0.0 [INFO] [stderr] Downloaded ts-rs-macros v7.0.0 [INFO] [stderr] Downloaded crossbeam-epoch v0.9.14 [INFO] [stderr] Downloaded ciborium-io v0.2.0 [INFO] [stderr] Downloaded anstyle-wincon v3.0.0 [INFO] [stderr] Downloaded ciborium-ll v0.2.0 [INFO] [stderr] Downloaded wasm-bindgen-backend v0.2.84 [INFO] [stderr] Downloaded syntree v0.14.5 [INFO] [stderr] Downloaded ciborium v0.2.0 [INFO] [stderr] Downloaded js-sys v0.3.61 [INFO] [stderr] Downloaded bstr v1.4.0 [INFO] [stderr] Downloaded rustix v0.37.11 [INFO] [stderr] Downloaded bumpalo v3.12.0 [INFO] [stderr] Downloaded web-sys v0.3.61 [INFO] [stderr] Downloaded linux-raw-sys v0.3.1 [INFO] [stderr] Downloaded wasm-bindgen v0.2.84 [INFO] [stderr] Downloaded parol_runtime v0.20.0 [INFO] [stderr] Downloaded anstream v0.6.0 [INFO] [stderr] Downloaded wasm-bindgen-macro-support v0.2.84 [INFO] [stderr] Downloaded wasm-bindgen-macro v0.2.84 [INFO] [stderr] Downloaded rand_regex v0.16.0 [INFO] [stderr] Downloaded wasm-bindgen-shared v0.2.84 [INFO] [stderr] Downloaded function_name-proc-macro v0.3.0 [INFO] [stderr] Downloaded function_name v0.3.0 [INFO] [stderr] Downloaded parol-macros v0.2.0 [INFO] [stderr] Downloaded quickcheck_macros v1.0.0 [INFO] [stderr] Downloaded crossbeam-utils v0.8.15 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 468adf6526e47a918d3df07d75fb5b7f2c0e1db2b65796c15071dc1b6529190f [INFO] running `Command { std: "docker" "start" "-a" "468adf6526e47a918d3df07d75fb5b7f2c0e1db2b65796c15071dc1b6529190f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "468adf6526e47a918d3df07d75fb5b7f2c0e1db2b65796c15071dc1b6529190f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "468adf6526e47a918d3df07d75fb5b7f2c0e1db2b65796c15071dc1b6529190f", kill_on_drop: false }` [INFO] [stdout] 468adf6526e47a918d3df07d75fb5b7f2c0e1db2b65796c15071dc1b6529190f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8965b5cc139af5c5d36b37b0e63def17538399f294ecfe6dd14e189d72ed18a7 [INFO] running `Command { std: "docker" "start" "-a" "8965b5cc139af5c5d36b37b0e63def17538399f294ecfe6dd14e189d72ed18a7", kill_on_drop: false }` [INFO] [stderr] Compiling unicode-ident v1.0.8 [INFO] [stderr] Compiling quote v1.0.28 [INFO] [stderr] Compiling libc v0.2.147 [INFO] [stderr] Compiling crossbeam-utils v0.8.15 [INFO] [stderr] Checking anstyle v1.0.0 [INFO] [stderr] Compiling serde v1.0.189 [INFO] [stderr] Checking either v1.8.1 [INFO] [stderr] Checking aho-corasick v1.0.1 [INFO] [stderr] Compiling memoffset v0.8.0 [INFO] [stderr] Compiling crossbeam-epoch v0.9.14 [INFO] [stderr] Compiling io-lifetimes v1.0.10 [INFO] [stderr] Compiling thiserror v1.0.40 [INFO] [stderr] Compiling rustix v0.37.11 [INFO] [stderr] Checking anstyle-parse v0.2.0 [INFO] [stderr] Checking linux-raw-sys v0.3.1 [INFO] [stderr] Compiling rayon-core v1.12.0 [INFO] [stderr] Compiling proc-macro2 v1.0.67 [INFO] [stderr] Checking clap_lex v0.5.0 [INFO] [stderr] Checking termcolor v1.1.3 [INFO] [stderr] Checking itoa v1.0.6 [INFO] [stderr] Checking ryu v1.0.13 [INFO] [stderr] Checking anstream v0.6.0 [INFO] [stderr] Checking itertools v0.10.5 [INFO] [stderr] Checking clap_builder v4.4.6 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Checking bitflags v2.4.1 [INFO] [stderr] Compiling Inflector v0.11.4 [INFO] [stderr] Checking fixedbitset v0.4.2 [INFO] [stderr] Checking syntree v0.14.5 [INFO] [stderr] Checking unicode-width v0.1.10 [INFO] [stderr] Checking xml_writer v0.4.0 [INFO] [stderr] Compiling function_name-proc-macro v0.3.0 [INFO] [stderr] Checking codespan-reporting v0.11.1 [INFO] [stderr] Checking petgraph v0.6.4 [INFO] [stderr] Checking plotters-backend v0.3.4 [INFO] [stderr] Checking regex-syntax v0.7.5 [INFO] [stderr] Checking regex-automata v0.4.3 [INFO] [stderr] Checking ciborium-io v0.2.0 [INFO] [stderr] Checking half v1.8.2 [INFO] [stderr] Checking predicates-core v1.0.6 [INFO] [stderr] Compiling rustix v0.38.4 [INFO] [stderr] Compiling syn v2.0.38 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking function_name v0.3.0 [INFO] [stderr] Checking parol-macros v0.2.0 [INFO] [stderr] Checking crossbeam-deque v0.8.3 [INFO] [stderr] Checking ciborium-ll v0.2.0 [INFO] [stderr] Checking plotters-svg v0.3.3 [INFO] [stderr] Checking owo-colors v3.5.0 [INFO] [stderr] Checking difflib v0.4.0 [INFO] [stderr] Compiling ume v0.1.0 [INFO] [stderr] Checking regex-automata v0.1.10 [INFO] [stderr] Checking termtree v0.4.1 [INFO] [stderr] Checking cast v0.3.0 [INFO] [stderr] Checking linux-raw-sys v0.4.3 [INFO] [stderr] Checking bstr v1.4.0 [INFO] [stderr] Checking predicates-tree v1.0.9 [INFO] [stderr] Checking walkdir v2.3.3 [INFO] [stderr] Checking diff v0.1.13 [INFO] [stderr] Checking plotters v0.3.4 [INFO] [stderr] Checking yansi v0.5.1 [INFO] [stderr] Checking rayon v1.8.0 [INFO] [stderr] Checking anes v0.1.6 [INFO] [stderr] Checking fastrand v2.0.0 [INFO] [stderr] Checking criterion-plot v0.5.0 [INFO] [stderr] Checking predicates v3.0.3 [INFO] [stderr] Checking oorandom v11.1.3 [INFO] [stderr] Checking pretty_assertions v1.4.0 [INFO] [stderr] Checking getrandom v0.2.9 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking wait-timeout v0.2.0 [INFO] [stderr] Checking assert_cmd v2.0.12 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking is-terminal v0.4.7 [INFO] [stderr] Checking tempfile v3.8.0 [INFO] [stderr] Checking rand_regex v0.16.0 [INFO] [stderr] Checking regex v1.10.2 [INFO] [stderr] Checking env_logger v0.10.0 [INFO] [stderr] Checking env_logger v0.8.4 [INFO] [stderr] Checking quickcheck v1.0.3 [INFO] [stderr] Compiling darling_core v0.14.4 [INFO] [stderr] Compiling quickcheck_macros v1.0.0 [INFO] [stderr] Compiling serde_derive v1.0.189 [INFO] [stderr] Compiling thiserror-impl v1.0.40 [INFO] [stderr] Compiling clap_derive v4.4.2 [INFO] [stderr] Compiling ts-rs-macros v7.0.0 [INFO] [stderr] Compiling darling_macro v0.14.4 [INFO] [stderr] Checking syntree_layout v0.2.0 [INFO] [stderr] Checking ts-rs v7.0.0 [INFO] [stderr] Compiling darling v0.14.4 [INFO] [stderr] Compiling derive_builder_core v0.12.0 [INFO] [stderr] Checking clap v4.4.6 [INFO] [stderr] Compiling derive_builder_macro v0.12.0 [INFO] [stderr] Checking derive_builder v0.12.0 [INFO] [stderr] Checking parol_runtime v0.20.0 [INFO] [stderr] Checking serde_json v1.0.107 [INFO] [stderr] Checking ciborium v0.2.0 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking parol v0.25.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking criterion v0.5.1 [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/build.rs:123:5 [INFO] [stdout] | [INFO] [stdout] 123 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/grammar/symbol.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/generators/grammar_config.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/transformation/canonicalization.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/utils/mod.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/build.rs:123:5 [INFO] [stdout] | [INFO] [stdout] 123 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/grammar/symbol.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/generators/grammar_config.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/transformation/canonicalization.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryFrom` is imported redundantly [INFO] [stdout] --> src/utils/mod.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use std::convert::TryFrom; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryFrom` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 38.17s [INFO] running `Command { std: "docker" "inspect" "8965b5cc139af5c5d36b37b0e63def17538399f294ecfe6dd14e189d72ed18a7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8965b5cc139af5c5d36b37b0e63def17538399f294ecfe6dd14e189d72ed18a7", kill_on_drop: false }` [INFO] [stdout] 8965b5cc139af5c5d36b37b0e63def17538399f294ecfe6dd14e189d72ed18a7