[INFO] cloning repository https://github.com/erikgrinaker/rex [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/erikgrinaker/rex" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ferikgrinaker%2Frex", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ferikgrinaker%2Frex'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 638525f5b9cba6cb98d412ac3473e98eed3f7e27 [INFO] checking erikgrinaker/rex against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ferikgrinaker%2Frex" "/workspace/builds/worker-4/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/erikgrinaker/rex on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/erikgrinaker/rex [INFO] finished tweaking git repo https://github.com/erikgrinaker/rex [INFO] tweaked toml for git repo https://github.com/erikgrinaker/rex written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/erikgrinaker/rex already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 41e8a3ba2639a97c985f7c8de4bda83bb9e1dca82cb607b199b2027a53caac79 [INFO] running `Command { std: "docker" "start" "-a" "41e8a3ba2639a97c985f7c8de4bda83bb9e1dca82cb607b199b2027a53caac79", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "41e8a3ba2639a97c985f7c8de4bda83bb9e1dca82cb607b199b2027a53caac79", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "41e8a3ba2639a97c985f7c8de4bda83bb9e1dca82cb607b199b2027a53caac79", kill_on_drop: false }` [INFO] [stdout] 41e8a3ba2639a97c985f7c8de4bda83bb9e1dca82cb607b199b2027a53caac79 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6b7d87e5d1eb6302cbfea5ad5ff2f0884b88565b965723e70c6f31dc84bc04c1 [INFO] running `Command { std: "docker" "start" "-a" "6b7d87e5d1eb6302cbfea5ad5ff2f0884b88565b965723e70c6f31dc84bc04c1", kill_on_drop: false }` [INFO] [stderr] Checking rex v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Transition` [INFO] [stdout] --> src/compiler.rs:5:49 [INFO] [stdout] | [INFO] [stdout] 5 | use crate::pattern::{Condition, Pattern, State, Transition}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `todo` [INFO] [stdout] --> src/pattern.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | todo, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Transition` [INFO] [stdout] --> src/compiler.rs:5:49 [INFO] [stdout] | [INFO] [stdout] 5 | use crate::pattern::{Condition, Pattern, State, Transition}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `todo` [INFO] [stdout] --> src/pattern.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | todo, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `expr` [INFO] [stdout] --> src/compiler.rs:14:27 [INFO] [stdout] | [INFO] [stdout] 14 | pub fn compile(&self, expr: ast::Expression) -> Result { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_expr` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `seq` [INFO] [stdout] --> src/compiler.rs:22:39 [INFO] [stdout] | [INFO] [stdout] 22 | ast::Expression::Sequence(seq) => {} [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_seq` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/compiler.rs:15:13 [INFO] [stdout] | [INFO] [stdout] 15 | let mut states = vec![State::Accept]; [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Class` [INFO] [stdout] --> src/ast.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | Class(Class), // [] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Alnum` [INFO] [stdout] --> src/ast.rs:20:5 [INFO] [stdout] | [INFO] [stdout] 20 | Alnum, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Alpha` [INFO] [stdout] --> src/ast.rs:21:5 [INFO] [stdout] | [INFO] [stdout] 21 | Alpha, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Digit` [INFO] [stdout] --> src/ast.rs:22:5 [INFO] [stdout] | [INFO] [stdout] 22 | Digit, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Lower` [INFO] [stdout] --> src/ast.rs:23:5 [INFO] [stdout] | [INFO] [stdout] 23 | Lower, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Space` [INFO] [stdout] --> src/ast.rs:24:5 [INFO] [stdout] | [INFO] [stdout] 24 | Space, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Upper` [INFO] [stdout] --> src/ast.rs:25:5 [INFO] [stdout] | [INFO] [stdout] 25 | Upper, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `compile_states` [INFO] [stdout] --> src/compiler.rs:20:8 [INFO] [stdout] | [INFO] [stdout] 20 | fn compile_states(&self, expr: ast::Expression) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `compile_condition` [INFO] [stdout] --> src/compiler.rs:28:8 [INFO] [stdout] | [INFO] [stdout] 28 | fn compile_condition(&self, expr: ast::Expression) -> Condition { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `compile` [INFO] [stdout] --> src/pattern.rs:18:12 [INFO] [stdout] | [INFO] [stdout] 18 | pub fn compile(expr: ast::Expression) -> Result { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Match` [INFO] [stdout] --> src/pattern.rs:46:5 [INFO] [stdout] | [INFO] [stdout] 46 | Match(Vec), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Always` [INFO] [stdout] --> src/pattern.rs:55:5 [INFO] [stdout] | [INFO] [stdout] 55 | Always, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Start` [INFO] [stdout] --> src/pattern.rs:56:5 [INFO] [stdout] | [INFO] [stdout] 56 | Start, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `End` [INFO] [stdout] --> src/pattern.rs:57:5 [INFO] [stdout] | [INFO] [stdout] 57 | End, [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Literal` [INFO] [stdout] --> src/pattern.rs:58:5 [INFO] [stdout] | [INFO] [stdout] 58 | Literal(char), [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `expr` [INFO] [stdout] --> src/compiler.rs:14:27 [INFO] [stdout] | [INFO] [stdout] 14 | pub fn compile(&self, expr: ast::Expression) -> Result { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_expr` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `seq` [INFO] [stdout] --> src/compiler.rs:22:39 [INFO] [stdout] | [INFO] [stdout] 22 | ast::Expression::Sequence(seq) => {} [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_seq` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 20 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/compiler.rs:15:13 [INFO] [stdout] | [INFO] [stdout] 15 | let mut states = vec![State::Accept]; [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Class` [INFO] [stdout] --> src/ast.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | Class(Class), // [] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Alnum` [INFO] [stdout] --> src/ast.rs:20:5 [INFO] [stdout] | [INFO] [stdout] 20 | Alnum, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Alpha` [INFO] [stdout] --> src/ast.rs:21:5 [INFO] [stdout] | [INFO] [stdout] 21 | Alpha, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Digit` [INFO] [stdout] --> src/ast.rs:22:5 [INFO] [stdout] | [INFO] [stdout] 22 | Digit, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Lower` [INFO] [stdout] --> src/ast.rs:23:5 [INFO] [stdout] | [INFO] [stdout] 23 | Lower, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Space` [INFO] [stdout] --> src/ast.rs:24:5 [INFO] [stdout] | [INFO] [stdout] 24 | Space, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Upper` [INFO] [stdout] --> src/ast.rs:25:5 [INFO] [stdout] | [INFO] [stdout] 25 | Upper, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `compile_states` [INFO] [stdout] --> src/compiler.rs:20:8 [INFO] [stdout] | [INFO] [stdout] 20 | fn compile_states(&self, expr: ast::Expression) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `compile_condition` [INFO] [stdout] --> src/compiler.rs:28:8 [INFO] [stdout] | [INFO] [stdout] 28 | fn compile_condition(&self, expr: ast::Expression) -> Condition { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `compile` [INFO] [stdout] --> src/pattern.rs:18:12 [INFO] [stdout] | [INFO] [stdout] 18 | pub fn compile(expr: ast::Expression) -> Result { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Match` [INFO] [stdout] --> src/pattern.rs:46:5 [INFO] [stdout] | [INFO] [stdout] 46 | Match(Vec), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Always` [INFO] [stdout] --> src/pattern.rs:55:5 [INFO] [stdout] | [INFO] [stdout] 55 | Always, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Start` [INFO] [stdout] --> src/pattern.rs:56:5 [INFO] [stdout] | [INFO] [stdout] 56 | Start, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `End` [INFO] [stdout] --> src/pattern.rs:57:5 [INFO] [stdout] | [INFO] [stdout] 57 | End, [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Literal` [INFO] [stdout] --> src/pattern.rs:58:5 [INFO] [stdout] | [INFO] [stdout] 58 | Literal(char), [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 20 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.53s [INFO] running `Command { std: "docker" "inspect" "6b7d87e5d1eb6302cbfea5ad5ff2f0884b88565b965723e70c6f31dc84bc04c1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6b7d87e5d1eb6302cbfea5ad5ff2f0884b88565b965723e70c6f31dc84bc04c1", kill_on_drop: false }` [INFO] [stdout] 6b7d87e5d1eb6302cbfea5ad5ff2f0884b88565b965723e70c6f31dc84bc04c1