[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#446cb600aa4837dd6c513f14fa0d25a909b177d7 for pr-149195 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdawidl022%2Fwhile-analyser" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-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-1-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/dawidl022/while-analyser on toolchain 446cb600aa4837dd6c513f14fa0d25a909b177d7 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "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" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [INFO] checking dawidl022/while-analyser against try#446cb600aa4837dd6c513f14fa0d25a909b177d7 for pr-149195 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdawidl022%2Fwhile-analyser" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-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-1-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/dawidl022/while-analyser on toolchain 446cb600aa4837dd6c513f14fa0d25a909b177d7 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "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" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f293f37866287184847af11d333d8b317aa2c1a057e6cd865bdff6e813ec493f [INFO] running `Command { std: "docker" "start" "-a" "f293f37866287184847af11d333d8b317aa2c1a057e6cd865bdff6e813ec493f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f293f37866287184847af11d333d8b317aa2c1a057e6cd865bdff6e813ec493f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f293f37866287184847af11d333d8b317aa2c1a057e6cd865bdff6e813ec493f", kill_on_drop: false }` [INFO] [stdout] f293f37866287184847af11d333d8b317aa2c1a057e6cd865bdff6e813ec493f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f50f3ba87e13790df5497631a61a745c26a3499cb4dee6e79515cb68d88304cc [INFO] running `Command { std: "docker" "start" "-a" "f50f3ba87e13790df5497631a61a745c26a3499cb4dee6e79515cb68d88304cc", kill_on_drop: false }` [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)]` (part of `#[warn(unused)]`) 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: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/parser.rs:13:21 [INFO] [stdout] | [INFO] [stdout] 13 | pub fn parse(input: &str) -> Result { [INFO] [stdout] | ^^^^ ^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type 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)]` (part of `#[warn(unused)]`) 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: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/parser.rs:13:21 [INFO] [stdout] | [INFO] [stdout] 13 | pub fn parse(input: &str) -> Result { [INFO] [stdout] | ^^^^ ^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type 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 0.26s [INFO] running `Command { std: "docker" "inspect" "f50f3ba87e13790df5497631a61a745c26a3499cb4dee6e79515cb68d88304cc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f50f3ba87e13790df5497631a61a745c26a3499cb4dee6e79515cb68d88304cc", kill_on_drop: false }` [INFO] [stdout] f50f3ba87e13790df5497631a61a745c26a3499cb4dee6e79515cb68d88304cc