[INFO] cloning repository https://github.com/dawidl022/while-analyser [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dawidl022/while-analyser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdawidl022%2Fwhile-analyser", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdawidl022%2Fwhile-analyser'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 8bbe697deedf8f395b6b533a9ca9bde8ee381461 [INFO] checking dawidl022/while-analyser against try#5de9e0e6cf775e94e0de2003f35e183f3f77bfe8 for pr-143808 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdawidl022%2Fwhile-analyser" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/dawidl022/while-analyser [INFO] finished tweaking git repo https://github.com/dawidl022/while-analyser [INFO] tweaked toml for git repo https://github.com/dawidl022/while-analyser written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/dawidl022/while-analyser on toolchain 5de9e0e6cf775e94e0de2003f35e183f3f77bfe8 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/dawidl022/while-analyser 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" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d641fd403539b5f0bf6f0eddc63cabfbec2f65aac13abbd5690196e3af972764 [INFO] running `Command { std: "docker" "start" "-a" "d641fd403539b5f0bf6f0eddc63cabfbec2f65aac13abbd5690196e3af972764", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d641fd403539b5f0bf6f0eddc63cabfbec2f65aac13abbd5690196e3af972764", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d641fd403539b5f0bf6f0eddc63cabfbec2f65aac13abbd5690196e3af972764", kill_on_drop: false }` [INFO] [stdout] d641fd403539b5f0bf6f0eddc63cabfbec2f65aac13abbd5690196e3af972764 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a51b048d07bb0ac2bafec01b2b9f9729110668ae24370152ff5c0741e8c8380a [INFO] running `Command { std: "docker" "start" "-a" "a51b048d07bb0ac2bafec01b2b9f9729110668ae24370152ff5c0741e8c8380a", kill_on_drop: false }` [INFO] [stderr] Checking minimal-lexical v0.2.1 [INFO] [stderr] Checking memchr v2.7.4 [INFO] [stderr] Checking nom v7.1.3 [INFO] [stderr] Checking while-analyser v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: type alias `Lab` is never used [INFO] [stdout] --> src/analysis.rs:3:6 [INFO] [stdout] | [INFO] [stdout] 3 | type Lab = u32; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `init` is never used [INFO] [stdout] --> src/analysis.rs:5:4 [INFO] [stdout] | [INFO] [stdout] 5 | fn init(stmt: &ast::LabStmt) -> Lab { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `final` is never used [INFO] [stdout] --> src/analysis.rs:15:4 [INFO] [stdout] | [INFO] [stdout] 15 | fn r#final(stmt: &ast::LabStmt) -> Set { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `blocks` is never used [INFO] [stdout] --> src/analysis.rs:25:4 [INFO] [stdout] | [INFO] [stdout] 25 | fn blocks(stmt: &ast::LabStmt) -> Set { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `flow` is never used [INFO] [stdout] --> src/analysis.rs:41:4 [INFO] [stdout] | [INFO] [stdout] 41 | fn flow(stmt: &ast::LabStmt) -> Set<(Lab, Lab)> { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `labels` is never used [INFO] [stdout] --> src/analysis.rs:65:4 [INFO] [stdout] | [INFO] [stdout] 65 | fn r#labels(stmt: &ast::LabStmt) -> Set { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Block` is never used [INFO] [stdout] --> src/analysis.rs:70:6 [INFO] [stdout] | [INFO] [stdout] 70 | enum Block { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Set` is never constructed [INFO] [stdout] --> src/analysis.rs:76:8 [INFO] [stdout] | [INFO] [stdout] 76 | struct Set(Vec); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `singleton`, `union`, and `empty` are never used [INFO] [stdout] --> src/analysis.rs:79:8 [INFO] [stdout] | [INFO] [stdout] 78 | impl Set { [INFO] [stdout] | ------------------------- associated functions in this implementation [INFO] [stdout] 79 | fn singleton(item: T) -> Self { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 83 | fn r#union(sets: [Self; N]) -> Self { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 96 | fn empty() -> Set { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `label` is never used [INFO] [stdout] --> src/analysis.rs:136:8 [INFO] [stdout] | [INFO] [stdout] 135 | impl Block { [INFO] [stdout] | ---------- method in this implementation [INFO] [stdout] 136 | fn label(&self) -> Lab { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/parser.rs:13:21 [INFO] [stdout] | [INFO] [stdout] 13 | pub fn parse(input: &str) -> Result { [INFO] [stdout] | ^^^^ ---------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 13 | pub fn parse(input: &str) -> Result> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `Lab` is never used [INFO] [stdout] --> src/analysis.rs:3:6 [INFO] [stdout] | [INFO] [stdout] 3 | type Lab = u32; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `init` is never used [INFO] [stdout] --> src/analysis.rs:5:4 [INFO] [stdout] | [INFO] [stdout] 5 | fn init(stmt: &ast::LabStmt) -> Lab { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `final` is never used [INFO] [stdout] --> src/analysis.rs:15:4 [INFO] [stdout] | [INFO] [stdout] 15 | fn r#final(stmt: &ast::LabStmt) -> Set { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `blocks` is never used [INFO] [stdout] --> src/analysis.rs:25:4 [INFO] [stdout] | [INFO] [stdout] 25 | fn blocks(stmt: &ast::LabStmt) -> Set { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `flow` is never used [INFO] [stdout] --> src/analysis.rs:41:4 [INFO] [stdout] | [INFO] [stdout] 41 | fn flow(stmt: &ast::LabStmt) -> Set<(Lab, Lab)> { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `labels` is never used [INFO] [stdout] --> src/analysis.rs:65:4 [INFO] [stdout] | [INFO] [stdout] 65 | fn r#labels(stmt: &ast::LabStmt) -> Set { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Block` is never used [INFO] [stdout] --> src/analysis.rs:70:6 [INFO] [stdout] | [INFO] [stdout] 70 | enum Block { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Set` is never constructed [INFO] [stdout] --> src/analysis.rs:76:8 [INFO] [stdout] | [INFO] [stdout] 76 | struct Set(Vec); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `singleton`, `union`, and `empty` are never used [INFO] [stdout] --> src/analysis.rs:79:8 [INFO] [stdout] | [INFO] [stdout] 78 | impl Set { [INFO] [stdout] | ------------------------- associated functions in this implementation [INFO] [stdout] 79 | fn singleton(item: T) -> Self { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 83 | fn r#union(sets: [Self; N]) -> Self { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 96 | fn empty() -> Set { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `label` is never used [INFO] [stdout] --> src/analysis.rs:136:8 [INFO] [stdout] | [INFO] [stdout] 135 | impl Block { [INFO] [stdout] | ---------- method in this implementation [INFO] [stdout] 136 | fn label(&self) -> Lab { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/parser.rs:13:21 [INFO] [stdout] | [INFO] [stdout] 13 | pub fn parse(input: &str) -> Result { [INFO] [stdout] | ^^^^ ---------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 13 | pub fn parse(input: &str) -> Result> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.90s [INFO] running `Command { std: "docker" "inspect" "a51b048d07bb0ac2bafec01b2b9f9729110668ae24370152ff5c0741e8c8380a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a51b048d07bb0ac2bafec01b2b9f9729110668ae24370152ff5c0741e8c8380a", kill_on_drop: false }` [INFO] [stdout] a51b048d07bb0ac2bafec01b2b9f9729110668ae24370152ff5c0741e8c8380a