[INFO] cloning repository https://github.com/4LT/qctools
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/4LT/qctools" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F4LT%2Fqctools", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F4LT%2Fqctools'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d87158d752452682c315971fd9a7b20938cdc39b
[INFO] checking 4LT/qctools against master#3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0 for pr-143164
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F4LT%2Fqctools" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/4LT/qctools
[INFO] finished tweaking git repo https://github.com/4LT/qctools
[INFO] tweaked toml for git repo https://github.com/4LT/qctools written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/4LT/qctools on toolchain 3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/4LT/qctools 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" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5d26df61da7eefae210456ea4f251c895b49a6f2fe4875ad2548f6f7174949b6
[INFO] running `Command { std: "docker" "start" "-a" "5d26df61da7eefae210456ea4f251c895b49a6f2fe4875ad2548f6f7174949b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d26df61da7eefae210456ea4f251c895b49a6f2fe4875ad2548f6f7174949b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d26df61da7eefae210456ea4f251c895b49a6f2fe4875ad2548f6f7174949b6", kill_on_drop: false }`
[INFO] [stdout] 5d26df61da7eefae210456ea4f251c895b49a6f2fe4875ad2548f6f7174949b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 655daa4efaf08869d894a70daa5d816be23614616349fc99f510b19ae0aae453
[INFO] running `Command { std: "docker" "start" "-a" "655daa4efaf08869d894a70daa5d816be23614616349fc99f510b19ae0aae453", kill_on_drop: false }`
[INFO] [stderr]     Checking qct-parser v0.1.0 (/opt/rustwide/workdir/parser)
[INFO] [stdout] warning: constant `START` is never used
[INFO] [stdout]  --> parser/src/dfa.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub const START: usize = 0;
[INFO] [stdout]   |           ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Automaton` is never constructed
[INFO] [stdout]  --> parser/src/dfa.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Automaton<Sym: Copy + Ord> {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `transition`, `is_previous_accepting`, `is_alive`, and `reset` are never used
[INFO] [stdout]   --> parser/src/dfa.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl<Sym: Copy + Ord> Automaton<Sym> {
[INFO] [stdout]    | ------------------------------------ methods in this implementation
[INFO] [stdout] 12 |     pub fn transition(&mut self, symbol: Option<Sym>) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn is_previous_accepting(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn is_alive(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub fn reset(&mut self) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `State` is never constructed
[INFO] [stdout]   --> parser/src/dfa.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | struct State<Sym: Copy + Ord> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `transition` and `new` are never used
[INFO] [stdout]   --> parser/src/dfa.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | impl<Sym: Copy + Ord> State<Sym> {
[INFO] [stdout]    | -------------------------------- associated items in this implementation
[INFO] [stdout] 43 |     fn transition(&self, symbol: Option<Sym>) -> Option<usize> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 |     fn new(accepting: bool) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AutomatonBuilder` is never constructed
[INFO] [stdout]   --> parser/src/dfa.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub struct AutomatonBuilder<Sym: Copy + Ord> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add_state`, `add_transition`, and `build` are never used
[INFO] [stdout]   --> parser/src/dfa.rs:70:12
[INFO] [stdout]    |
[INFO] [stdout] 69 | impl<Sym: Copy + Ord> AutomatonBuilder<Sym> {
[INFO] [stdout]    | ------------------------------------------- associated items in this implementation
[INFO] [stdout] 70 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 76 |     pub fn add_state(&mut self, accepting: bool) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 82 |     pub fn add_transition(
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 99 |     pub fn build(self) -> Automaton<Sym> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `keyword_automaton` is never used
[INFO] [stdout]    --> parser/src/dfa.rs:108:8
[INFO] [stdout]     |
[INFO] [stdout] 108 | pub fn keyword_automaton<Sym: Copy + Ord>(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `TokenKind` is never used
[INFO] [stdout]  --> parser/src/lexer.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub trait TokenKind: Copy + Eq {
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Lexer` is never constructed
[INFO] [stdout]  --> parser/src/lexer.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Lexer<Sym: Copy + Ord, K: TokenKind> {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `step`, `reset_automata`, and `lex` are never used
[INFO] [stdout]   --> parser/src/lexer.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl<Sym: Copy + Ord, K: TokenKind> Lexer<Sym, K> {
[INFO] [stdout]    | ------------------------------------------------- associated items in this implementation
[INFO] [stdout] 16 |     pub fn new(automata: Vec<(dfa::Automaton<Sym>, K)>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn step(&mut self, symbol: Option<Sym>) -> Option<Token<Sym, K>> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 75 |     fn reset_automata(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 82 |     pub fn lex(
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Token` is never constructed
[INFO] [stdout]   --> parser/src/lexer.rs:90:12
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub struct Token<Sym: Copy + Ord, K: TokenKind> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> parser/src/lexer.rs:96:8
[INFO] [stdout]    |
[INFO] [stdout] 95 | impl<Sym: Copy + Ord, K: TokenKind> Token<Sym, K> {
[INFO] [stdout]    | ------------------------------------------------- associated function in this implementation
[INFO] [stdout] 96 |     fn new(kind: K, text: Vec<Sym>) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "655daa4efaf08869d894a70daa5d816be23614616349fc99f510b19ae0aae453", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "655daa4efaf08869d894a70daa5d816be23614616349fc99f510b19ae0aae453", kill_on_drop: false }`
[INFO] [stdout] 655daa4efaf08869d894a70daa5d816be23614616349fc99f510b19ae0aae453
