[INFO] cloning repository https://github.com/HeroicKatora/automata [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/HeroicKatora/automata" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHeroicKatora%2Fautomata", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHeroicKatora%2Fautomata'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 66d9f72b7e65262069825b0849f14060a4fcadd9 [INFO] checking HeroicKatora/automata/66d9f72b7e65262069825b0849f14060a4fcadd9 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHeroicKatora%2Fautomata" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/HeroicKatora/automata 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 git repo https://github.com/HeroicKatora/automata [INFO] finished tweaking git repo https://github.com/HeroicKatora/automata [INFO] tweaked toml for git repo https://github.com/HeroicKatora/automata written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] e63215f623834280179c42a2fcadeadb77fe9d1caac01aa3865260e0c9adaa10 [INFO] running `Command { std: "docker" "start" "-a" "e63215f623834280179c42a2fcadeadb77fe9d1caac01aa3865260e0c9adaa10", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e63215f623834280179c42a2fcadeadb77fe9d1caac01aa3865260e0c9adaa10", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e63215f623834280179c42a2fcadeadb77fe9d1caac01aa3865260e0c9adaa10", kill_on_drop: false }` [INFO] [stdout] e63215f623834280179c42a2fcadeadb77fe9d1caac01aa3865260e0c9adaa10 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 731f1da7edea72d391f0f6344baa7977db9c45fa99ef87e2895b381033d4ac87 [INFO] running `Command { std: "docker" "start" "-a" "731f1da7edea72d391f0f6344baa7977db9c45fa99ef87e2895b381033d4ac87", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Checking automata v0.0.4 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/deterministic.rs:172:41 [INFO] [stdout] | [INFO] [stdout] 172 | pub fn write_to(&self, output: &mut Write) -> io::Result<()> [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) 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] 172 | pub fn write_to(&self, output: &mut dyn Write) -> io::Result<()> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/dfa.rs:103:41 [INFO] [stdout] | [INFO] [stdout] 103 | pub fn write_to(&self, output: &mut Write) -> io::Result<()> [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 103 | pub fn write_to(&self, output: &mut dyn Write) -> io::Result<()> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/nfa.rs:281:41 [INFO] [stdout] | [INFO] [stdout] 281 | pub fn write_to(&self, output: &mut Write) -> io::Result<()> [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 281 | pub fn write_to(&self, output: &mut dyn Write) -> io::Result<()> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/deterministic.rs:172:41 [INFO] [stdout] | [INFO] [stdout] 172 | pub fn write_to(&self, output: &mut Write) -> io::Result<()> [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) 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] 172 | pub fn write_to(&self, output: &mut dyn Write) -> io::Result<()> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/dfa.rs:103:41 [INFO] [stdout] | [INFO] [stdout] 103 | pub fn write_to(&self, output: &mut Write) -> io::Result<()> [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 103 | pub fn write_to(&self, output: &mut dyn Write) -> io::Result<()> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/nfa.rs:281:41 [INFO] [stdout] | [INFO] [stdout] 281 | pub fn write_to(&self, output: &mut Write) -> io::Result<()> [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 281 | pub fn write_to(&self, output: &mut dyn Write) -> io::Result<()> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `ensure` is never used [INFO] [stdout] --> src/lib.rs:28:8 [INFO] [stdout] | [INFO] [stdout] 25 | trait Ensure { [INFO] [stdout] | ------ method in this trait [INFO] [stdout] ... [INFO] [stdout] 28 | fn ensure(&mut self, n: usize, item: T) where T: Clone { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `graph` and `regex` are never read [INFO] [stdout] --> src/nfa.rs:32:5 [INFO] [stdout] | [INFO] [stdout] 28 | pub struct NfaRegex { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 32 | graph: NonDeterministic, [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 35 | regex: Regex, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `ensure` is never used [INFO] [stdout] --> src/lib.rs:28:8 [INFO] [stdout] | [INFO] [stdout] 25 | trait Ensure { [INFO] [stdout] | ------ method in this trait [INFO] [stdout] ... [INFO] [stdout] 28 | fn ensure(&mut self, n: usize, item: T) where T: Clone { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `graph` and `regex` are never read [INFO] [stdout] --> src/nfa.rs:32:5 [INFO] [stdout] | [INFO] [stdout] 28 | pub struct NfaRegex { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 32 | graph: NonDeterministic, [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 35 | regex: Regex, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.76s [INFO] running `Command { std: "docker" "inspect" "731f1da7edea72d391f0f6344baa7977db9c45fa99ef87e2895b381033d4ac87", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "731f1da7edea72d391f0f6344baa7977db9c45fa99ef87e2895b381033d4ac87", kill_on_drop: false }` [INFO] [stdout] 731f1da7edea72d391f0f6344baa7977db9c45fa99ef87e2895b381033d4ac87