[INFO] cloning repository https://github.com/UsQuake/fuzzingbook_rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/UsQuake/fuzzingbook_rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUsQuake%2Ffuzzingbook_rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUsQuake%2Ffuzzingbook_rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 3a13abc68396e9e62c1d0d662fd6f4888aea2e47 [INFO] checking UsQuake/fuzzingbook_rs against master#9ba3d315b4b2bea7485071eaf4b2681320cd2a27 for pr-124592 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUsQuake%2Ffuzzingbook_rs" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/UsQuake/fuzzingbook_rs on toolchain 9ba3d315b4b2bea7485071eaf4b2681320cd2a27 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9ba3d315b4b2bea7485071eaf4b2681320cd2a27" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/UsQuake/fuzzingbook_rs [INFO] finished tweaking git repo https://github.com/UsQuake/fuzzingbook_rs [INFO] tweaked toml for git repo https://github.com/UsQuake/fuzzingbook_rs written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/UsQuake/fuzzingbook_rs 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" "+9ba3d315b4b2bea7485071eaf4b2681320cd2a27" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [ERROR] this task or one of its parent failed! [ERROR] no output for 300 seconds [ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace. [INFO] checking UsQuake/fuzzingbook_rs against try#2466b92ed5feb282a98bb984f45d1e6d39f8c1aa for pr-124592 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUsQuake%2Ffuzzingbook_rs" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/UsQuake/fuzzingbook_rs on toolchain 2466b92ed5feb282a98bb984f45d1e6d39f8c1aa [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2466b92ed5feb282a98bb984f45d1e6d39f8c1aa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/UsQuake/fuzzingbook_rs [INFO] finished tweaking git repo https://github.com/UsQuake/fuzzingbook_rs [INFO] tweaked toml for git repo https://github.com/UsQuake/fuzzingbook_rs written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/UsQuake/fuzzingbook_rs 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" "+2466b92ed5feb282a98bb984f45d1e6d39f8c1aa" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+2466b92ed5feb282a98bb984f45d1e6d39f8c1aa" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f3ad79fa2b137fe1429a17cdfd007b3dbca830ea0d782bfe26a2033ae1c897ce [INFO] running `Command { std: "docker" "start" "-a" "f3ad79fa2b137fe1429a17cdfd007b3dbca830ea0d782bfe26a2033ae1c897ce", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f3ad79fa2b137fe1429a17cdfd007b3dbca830ea0d782bfe26a2033ae1c897ce", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f3ad79fa2b137fe1429a17cdfd007b3dbca830ea0d782bfe26a2033ae1c897ce", kill_on_drop: false }` [INFO] [stdout] f3ad79fa2b137fe1429a17cdfd007b3dbca830ea0d782bfe26a2033ae1c897ce [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+2466b92ed5feb282a98bb984f45d1e6d39f8c1aa" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 07d9d9c49ad2c72e3801c5c366b14bea2379d2711e3df37351669baaa0ae2240 [INFO] running `Command { std: "docker" "start" "-a" "07d9d9c49ad2c72e3801c5c366b14bea2379d2711e3df37351669baaa0ae2240", kill_on_drop: false }` [INFO] [stderr] Compiling crossbeam-utils v0.8.19 [INFO] [stderr] Compiling rayon-core v1.12.1 [INFO] [stderr] Checking memchr v2.7.2 [INFO] [stderr] Checking regex-syntax v0.8.3 [INFO] [stderr] Checking either v1.11.0 [INFO] [stderr] Checking rustc-hash v1.1.0 [INFO] [stderr] Checking aho-corasick v1.1.3 [INFO] [stderr] Checking crossbeam-epoch v0.9.18 [INFO] [stderr] Checking crossbeam-deque v0.8.5 [INFO] [stderr] Checking rayon v1.10.0 [INFO] [stderr] Checking regex-automata v0.4.6 [INFO] [stderr] Checking regex v1.10.4 [INFO] [stderr] Checking fuzzingbook_rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `CALL_COUNT`, `ELAPSED` [INFO] [stdout] --> src/grammar/mod.rs:4:29 [INFO] [stdout] | [INFO] [stdout] 4 | use crate::grammar_fuzzer::{CALL_COUNT, ELAPSED}; [INFO] [stdout] | ^^^^^^^^^^ ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Instant` [INFO] [stdout] --> src/grammar/mod.rs:14:12 [INFO] [stdout] | [INFO] [stdout] 14 | time::{Instant, SystemTime, UNIX_EPOCH}, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rayon::iter::IntoParallelRefIterator` [INFO] [stdout] --> src/grammar_fuzzer/mod.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use rayon::iter::IntoParallelRefIterator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `FxHashMap`, `FxHashSet` [INFO] [stdout] --> src/grammar_fuzzer/mod.rs:5:18 [INFO] [stdout] | [INFO] [stdout] 5 | use rustc_hash::{FxHashMap, FxHashSet, FxHasher}; [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `hash_map::DefaultHasher`, `rc::Rc`, `time::Instant` [INFO] [stdout] --> src/grammar_fuzzer/mod.rs:7:19 [INFO] [stdout] | [INFO] [stdout] 7 | collections::{hash_map::DefaultHasher, BTreeSet, HashSet}, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 8 | hash::{Hash, Hasher}, [INFO] [stdout] 9 | rc::Rc, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 10 | time::Instant, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `regex::*` [INFO] [stdout] --> src/grammar/test.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | use regex::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `CALL_COUNT`, `ELAPSED` [INFO] [stdout] --> src/grammar/mod.rs:4:29 [INFO] [stdout] | [INFO] [stdout] 4 | use crate::grammar_fuzzer::{CALL_COUNT, ELAPSED}; [INFO] [stdout] | ^^^^^^^^^^ ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Instant` [INFO] [stdout] --> src/grammar/mod.rs:14:12 [INFO] [stdout] | [INFO] [stdout] 14 | time::{Instant, SystemTime, UNIX_EPOCH}, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rayon::iter::IntoParallelRefIterator` [INFO] [stdout] --> src/grammar_fuzzer/mod.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use rayon::iter::IntoParallelRefIterator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `FxHashMap`, `FxHashSet` [INFO] [stdout] --> src/grammar_fuzzer/mod.rs:5:18 [INFO] [stdout] | [INFO] [stdout] 5 | use rustc_hash::{FxHashMap, FxHashSet, FxHasher}; [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `hash_map::DefaultHasher`, `rc::Rc`, `time::Instant` [INFO] [stdout] --> src/grammar_fuzzer/mod.rs:7:19 [INFO] [stdout] | [INFO] [stdout] 7 | collections::{hash_map::DefaultHasher, BTreeSet, HashSet}, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 8 | hash::{Hash, Hasher}, [INFO] [stdout] 9 | rc::Rc, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 10 | time::Instant, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `expansion` is never read [INFO] [stdout] --> src/grammar/mod.rs:187:25 [INFO] [stdout] | [INFO] [stdout] 187 | expansion = Union::OnlyA(sub_exp.clone()); [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `expansion` is never read [INFO] [stdout] --> src/grammar/mod.rs:187:25 [INFO] [stdout] | [INFO] [stdout] 187 | expansion = Union::OnlyA(sub_exp.clone()); [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `node` [INFO] [stdout] --> src/grammar_fuzzer/mod.rs:102:9 [INFO] [stdout] | [INFO] [stdout] 102 | node: &DerivationTree, [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_node` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `expansion` [INFO] [stdout] --> src/grammar_fuzzer/mod.rs:115:9 [INFO] [stdout] | [INFO] [stdout] 115 | expansion: &Expansion, [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_expansion` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `node` [INFO] [stdout] --> src/grammar_fuzzer/mod.rs:102:9 [INFO] [stdout] | [INFO] [stdout] 102 | node: &DerivationTree, [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_node` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `expansion` [INFO] [stdout] --> src/grammar_fuzzer/mod.rs:115:9 [INFO] [stdout] | [INFO] [stdout] 115 | expansion: &Expansion, [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_expansion` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `trim_grammar` is never used [INFO] [stdout] --> src/grammar/mod.rs:404:4 [INFO] [stdout] | [INFO] [stdout] 404 | fn trim_grammar<'l_use>(grammar: &Grammar<'l_use>, start_symbol: &'l_use str) -> Grammar<'l_use> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `set_opts` is never used [INFO] [stdout] --> src/grammar/options.rs:39:4 [INFO] [stdout] | [INFO] [stdout] 39 | fn set_opts<'l_use>( [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&dyn Any` instead of cloning the inner type [INFO] [stdout] --> src/grammar/options.rs:34:38 [INFO] [stdout] | [INFO] [stdout] 34 | Some(ref_ref) => Some(ref_ref.clone()), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(suspicious_double_ref_op)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `trim_grammar` is never used [INFO] [stdout] --> src/grammar/mod.rs:404:4 [INFO] [stdout] | [INFO] [stdout] 404 | fn trim_grammar<'l_use>(grammar: &Grammar<'l_use>, start_symbol: &'l_use str) -> Grammar<'l_use> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `set_opts` is never used [INFO] [stdout] --> src/grammar/options.rs:39:4 [INFO] [stdout] | [INFO] [stdout] 39 | fn set_opts<'l_use>( [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&dyn Any` instead of cloning the inner type [INFO] [stdout] --> src/grammar/options.rs:34:38 [INFO] [stdout] | [INFO] [stdout] 34 | Some(ref_ref) => Some(ref_ref.clone()), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(suspicious_double_ref_op)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 12 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Duration` [INFO] [stdout] --> src/bin/main.rs:4:17 [INFO] [stdout] | [INFO] [stdout] 4 | use std::time::{Duration, Instant}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `SystemTime`, `UNIX_EPOCH` [INFO] [stdout] --> src/bin/main.rs:7:12 [INFO] [stdout] | [INFO] [stdout] 7 | time::{SystemTime, UNIX_EPOCH}, [INFO] [stdout] | ^^^^^^^^^^ ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Duration` [INFO] [stdout] --> src/bin/main.rs:4:17 [INFO] [stdout] | [INFO] [stdout] 4 | use std::time::{Duration, Instant}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `SystemTime`, `UNIX_EPOCH` [INFO] [stdout] --> src/bin/main.rs:7:12 [INFO] [stdout] | [INFO] [stdout] 7 | time::{SystemTime, UNIX_EPOCH}, [INFO] [stdout] | ^^^^^^^^^^ ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.30s [INFO] running `Command { std: "docker" "inspect" "07d9d9c49ad2c72e3801c5c366b14bea2379d2711e3df37351669baaa0ae2240", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "07d9d9c49ad2c72e3801c5c366b14bea2379d2711e3df37351669baaa0ae2240", kill_on_drop: false }` [INFO] [stdout] 07d9d9c49ad2c72e3801c5c366b14bea2379d2711e3df37351669baaa0ae2240