[INFO] fetching crate rflex 0.8.1... [INFO] checking rflex-0.8.1 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604 [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 ab869e094a907cc5d19b4080f22eccaf347f1f95 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "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 liquid-interpreter v0.17.1 [INFO] [stderr] Downloaded liquid-compiler v0.17.1 [INFO] [stderr] Downloaded liquid-value v0.17.1 [INFO] [stderr] Downloaded liquid-error v0.16.1 [INFO] [stderr] Downloaded liquid 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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e3b5e62ca290356765c2e3c6b3a5c6d70d86d40f368bdbf4f46c2a5b3b07f916 [INFO] running `Command { std: "docker" "start" "-a" "e3b5e62ca290356765c2e3c6b3a5c6d70d86d40f368bdbf4f46c2a5b3b07f916", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e3b5e62ca290356765c2e3c6b3a5c6d70d86d40f368bdbf4f46c2a5b3b07f916", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e3b5e62ca290356765c2e3c6b3a5c6d70d86d40f368bdbf4f46c2a5b3b07f916", kill_on_drop: false }` [INFO] [stdout] e3b5e62ca290356765c2e3c6b3a5c6d70d86d40f368bdbf4f46c2a5b3b07f916 [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f50796ef0dc8cdab0a39c072a89cbb2c18fc74e85f86b318fbad7272d0f08df6 [INFO] running `Command { std: "docker" "start" "-a" "f50796ef0dc8cdab0a39c072a89cbb2c18fc74e85f86b318fbad7272d0f08df6", 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 autocfg v1.0.1 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.52 [INFO] [stderr] Compiling libc v0.2.80 [INFO] [stderr] Compiling serde_derive v1.0.117 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling serde v1.0.117 [INFO] [stderr] Checking tinyvec_macros v0.1.0 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Checking itertools v0.7.11 [INFO] [stderr] Checking tinyvec v1.1.0 [INFO] [stderr] Checking liquid-error v0.16.1 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling miniz_oxide v0.4.3 [INFO] [stderr] Checking matches v0.1.8 [INFO] [stderr] Checking unicode-bidi v0.3.4 [INFO] [stderr] Checking aho-corasick v0.7.15 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Checking regex-syntax v0.6.21 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking gimli v0.23.0 [INFO] [stderr] Checking adler v0.2.3 [INFO] [stderr] Checking unicode-normalization v0.1.16 [INFO] [stderr] Checking rustc-demangle v0.1.18 [INFO] [stderr] Checking object v0.22.0 [INFO] [stderr] Checking percent-encoding v1.0.1 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking unicode-segmentation v1.7.1 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking fixedbitset v0.1.9 [INFO] [stderr] Checking idna v0.1.5 [INFO] [stderr] Checking regex v1.4.2 [INFO] [stderr] Checking url v1.7.2 [INFO] [stderr] Checking addr2line v0.14.0 [INFO] [stderr] Compiling synstructure v0.12.4 [INFO] [stderr] Checking backtrace v0.3.55 [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 `set_end` and `set_start` are never used [INFO] [stdout] --> src/charclasses.rs:22:12 [INFO] [stdout] | [INFO] [stdout] 9 | impl Interval { [INFO] [stdout] | ------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 22 | pub fn set_end(&mut self, end: usize) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 26 | pub fn set_start(&mut self, start: usize) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `add_char` is never used [INFO] [stdout] --> src/charclasses.rs:155:12 [INFO] [stdout] | [INFO] [stdout] 37 | impl IntCharSet { [INFO] [stdout] | --------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 155 | pub fn add_char(&mut self, c: usize) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `get_max_char_code`, `set_max_char_code`, and `to_string_i` are never used [INFO] [stdout] --> src/charclasses.rs:396:12 [INFO] [stdout] | [INFO] [stdout] 382 | impl CharClasses { [INFO] [stdout] | ---------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 396 | pub fn get_max_char_code(&self) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 400 | pub fn set_max_char_code(&mut self, max_char_code: usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 511 | pub fn to_string_i(&self, index: usize) -> String { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `write_dot` and `dump` are never used [INFO] [stdout] --> src/dfa.rs:480:12 [INFO] [stdout] | [INFO] [stdout] 16 | impl DFA { [INFO] [stdout] | -------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 480 | pub fn write_dot(&self) -> String { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 503 | pub fn dump(&self) -> String { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `dump_epsilon`, `dump_fixedbit`, `dump_fixedbit_str`, `write_dot`, and `dump_table` 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] 546 | fn dump_fixedbit_str(&self, v: &FixedBitSet) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 559 | pub fn write_dot(&self) -> String { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 594 | pub fn dump_table(&self) -> String { [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] [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: method `get_char_classes` is never used [INFO] [stdout] --> src/scanner.rs:354:12 [INFO] [stdout] | [INFO] [stdout] 341 | impl<'a, 'b> RegexScanner<'a, 'b> { [INFO] [stdout] | --------------------------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 354 | pub fn get_char_classes(&self) -> CharClasses { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [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: associated function `num` is never used [INFO] [stdout] --> src/scanner.rs:681:12 [INFO] [stdout] | [INFO] [stdout] 671 | impl Action { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] ... [INFO] [stdout] 681 | pub fn num(num: i32) -> Action { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `set_end` and `set_start` are never used [INFO] [stdout] --> src/charclasses.rs:22:12 [INFO] [stdout] | [INFO] [stdout] 9 | impl Interval { [INFO] [stdout] | ------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 22 | pub fn set_end(&mut self, end: usize) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 26 | pub fn set_start(&mut self, start: usize) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `get_max_char_code` and `set_max_char_code` are never used [INFO] [stdout] --> src/charclasses.rs:396:12 [INFO] [stdout] | [INFO] [stdout] 382 | impl CharClasses { [INFO] [stdout] | ---------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 396 | pub fn get_max_char_code(&self) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 400 | pub fn set_max_char_code(&mut self, max_char_code: usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `dump` is never used [INFO] [stdout] --> src/dfa.rs:503:12 [INFO] [stdout] | [INFO] [stdout] 16 | impl DFA { [INFO] [stdout] | -------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 503 | pub fn dump(&self) -> String { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `dump_epsilon`, `dump_fixedbit`, `dump_fixedbit_str`, and `dump_table` 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] 546 | fn dump_fixedbit_str(&self, v: &FixedBitSet) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 594 | pub fn dump_table(&self) -> String { [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] [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: method `get_char_classes` is never used [INFO] [stdout] --> src/scanner.rs:354:12 [INFO] [stdout] | [INFO] [stdout] 341 | impl<'a, 'b> RegexScanner<'a, 'b> { [INFO] [stdout] | --------------------------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 354 | pub fn get_char_classes(&self) -> CharClasses { [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: 7 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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 28.61s [INFO] running `Command { std: "docker" "inspect" "f50796ef0dc8cdab0a39c072a89cbb2c18fc74e85f86b318fbad7272d0f08df6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f50796ef0dc8cdab0a39c072a89cbb2c18fc74e85f86b318fbad7272d0f08df6", kill_on_drop: false }` [INFO] [stdout] f50796ef0dc8cdab0a39c072a89cbb2c18fc74e85f86b318fbad7272d0f08df6