[INFO] fetching crate rflex 0.8.1... [INFO] checking rflex-0.8.1 against master#2e6fc425411280c658d852813de01c5157255088 for pr-128013 [INFO] extracting crate rflex 0.8.1 into /workspace/builds/worker-6-tc1/source [INFO] validating manifest of crates.io crate rflex 0.8.1 on toolchain 2e6fc425411280c658d852813de01c5157255088 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate rflex 0.8.1 [INFO] finished tweaking crates.io crate rflex 0.8.1 [INFO] tweaked toml for crates.io crate rflex 0.8.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate crates.io crate rflex 0.8.1 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" "+2e6fc425411280c658d852813de01c5157255088" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: only one of `license` or `license-file` is necessary [INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression. [INFO] [stderr] `license-file` should be used if the package uses a non-standard license. [INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information. [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded syn v1.0.52 [INFO] [stderr] Downloaded liquid-interpreter v0.17.1 [INFO] [stderr] Downloaded liquid v0.17.1 [INFO] [stderr] Downloaded liquid-compiler v0.17.1 [INFO] [stderr] Downloaded liquid-error v0.16.1 [INFO] [stderr] Downloaded liquid-value v0.17.1 [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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d068825bd598715648b48c50e41e29df08dfe8eb05ef97374a5609c76a970a4f [INFO] running `Command { std: "docker" "start" "-a" "d068825bd598715648b48c50e41e29df08dfe8eb05ef97374a5609c76a970a4f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d068825bd598715648b48c50e41e29df08dfe8eb05ef97374a5609c76a970a4f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d068825bd598715648b48c50e41e29df08dfe8eb05ef97374a5609c76a970a4f", kill_on_drop: false }` [INFO] [stdout] d068825bd598715648b48c50e41e29df08dfe8eb05ef97374a5609c76a970a4f [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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0a8e824cd3187c1d92cc892deab3b1c847c8287bcbf4a99ae76ff57ba977f6ce [INFO] running `Command { std: "docker" "start" "-a" "0a8e824cd3187c1d92cc892deab3b1c847c8287bcbf4a99ae76ff57ba977f6ce", kill_on_drop: false }` [INFO] [stderr] warning: only one of `license` or `license-file` is necessary [INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression. [INFO] [stderr] `license-file` should be used if the package uses a non-standard license. [INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information. [INFO] [stderr] Compiling syn v1.0.52 [INFO] [stderr] Compiling libc v0.2.80 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling serde_derive v1.0.117 [INFO] [stderr] Compiling serde v1.0.117 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Checking tinyvec_macros v0.1.0 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Checking liquid-error v0.16.1 [INFO] [stderr] Checking matches v0.1.8 [INFO] [stderr] Checking regex-syntax v0.6.21 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking adler v0.2.3 [INFO] [stderr] Checking gimli v0.23.0 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Checking rustc-demangle v0.1.18 [INFO] [stderr] Checking tinyvec v1.1.0 [INFO] [stderr] Checking unicode-bidi v0.3.4 [INFO] [stderr] Checking miniz_oxide v0.4.3 [INFO] [stderr] Checking itertools v0.7.11 [INFO] [stderr] Checking object v0.22.0 [INFO] [stderr] Checking percent-encoding v1.0.1 [INFO] [stderr] Checking unicode-segmentation v1.7.1 [INFO] [stderr] Checking fixedbitset v0.1.9 [INFO] [stderr] Checking aho-corasick v0.7.15 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking unicode-normalization v0.1.16 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking idna v0.1.5 [INFO] [stderr] Checking regex v1.4.2 [INFO] [stderr] Checking addr2line v0.14.0 [INFO] [stderr] Checking url v1.7.2 [INFO] [stderr] Checking backtrace v0.3.55 [INFO] [stderr] Compiling synstructure v0.12.4 [INFO] [stderr] Checking failure v0.1.8 [INFO] [stderr] Checking liquid-value v0.17.1 [INFO] [stderr] Checking liquid-interpreter v0.17.1 [INFO] [stderr] Checking liquid-compiler v0.17.1 [INFO] [stderr] Checking liquid v0.17.1 [INFO] [stderr] Checking rflex v0.8.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: methods `dump_epsilon` and `dump_fixedbit` are never used [INFO] [stdout] --> src/nfa.rs:528:8 [INFO] [stdout] | [INFO] [stdout] 33 | impl NFA { [INFO] [stdout] | -------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 528 | fn dump_epsilon(&self, epsilon: Vec>>>) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 542 | fn dump_fixedbit(&self, v: &FixedBitSet) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/nfa.rs:527:12 [INFO] [stdout] | [INFO] [stdout] 527 | #[warn(dead_code)] [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Name` is never constructed [INFO] [stdout] --> src/scanner.rs:37:5 [INFO] [stdout] | [INFO] [stdout] 23 | pub enum Ast { [INFO] [stdout] | --- variant in this enum [INFO] [stdout] ... [INFO] [stdout] 37 | Name(String), [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Ast` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `line_num` is never read [INFO] [stdout] --> src/scanner.rs:335:5 [INFO] [stdout] | [INFO] [stdout] 333 | pub struct RegexScanner<'a, 'b> { [INFO] [stdout] | ------------ field in this struct [INFO] [stdout] 334 | chars: Chars<'a>, [INFO] [stdout] 335 | line_num: usize, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `RegexScanner` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `parse_regex` is never used [INFO] [stdout] --> src/scanner.rs:584:4 [INFO] [stdout] | [INFO] [stdout] 584 | fn parse_regex(line_num: usize, line: &String) -> Result<(IR, String), TranslateError> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:12:30 [INFO] [stdout] | [INFO] [stdout] 12 | for cause in failure::Fail::iter_chain(&e) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 12 | for cause in ::iter_chain(&e) { [INFO] [stdout] | ++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:12:30 [INFO] [stdout] | [INFO] [stdout] 12 | for cause in failure::Fail::iter_chain(&e) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 12 | for cause in ::iter_chain(&e) { [INFO] [stdout] | ++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `dump_epsilon` and `dump_fixedbit` are never used [INFO] [stdout] --> src/nfa.rs:528:8 [INFO] [stdout] | [INFO] [stdout] 33 | impl NFA { [INFO] [stdout] | -------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 528 | fn dump_epsilon(&self, epsilon: Vec>>>) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 542 | fn dump_fixedbit(&self, v: &FixedBitSet) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/nfa.rs:527:12 [INFO] [stdout] | [INFO] [stdout] 527 | #[warn(dead_code)] [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Name` is never constructed [INFO] [stdout] --> src/scanner.rs:37:5 [INFO] [stdout] | [INFO] [stdout] 23 | pub enum Ast { [INFO] [stdout] | --- variant in this enum [INFO] [stdout] ... [INFO] [stdout] 37 | Name(String), [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Ast` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `line_num` is never read [INFO] [stdout] --> src/scanner.rs:335:5 [INFO] [stdout] | [INFO] [stdout] 333 | pub struct RegexScanner<'a, 'b> { [INFO] [stdout] | ------------ field in this struct [INFO] [stdout] 334 | chars: Chars<'a>, [INFO] [stdout] 335 | line_num: usize, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `RegexScanner` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.87s [INFO] running `Command { std: "docker" "inspect" "0a8e824cd3187c1d92cc892deab3b1c847c8287bcbf4a99ae76ff57ba977f6ce", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0a8e824cd3187c1d92cc892deab3b1c847c8287bcbf4a99ae76ff57ba977f6ce", kill_on_drop: false }` [INFO] [stdout] 0a8e824cd3187c1d92cc892deab3b1c847c8287bcbf4a99ae76ff57ba977f6ce