[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] dd856170138fec42ccd04ca2bb90abef06b52327 [INFO] checking UsQuake/fuzzingbook_rs/dd856170138fec42ccd04ca2bb90abef06b52327 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUsQuake%2Ffuzzingbook_rs" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/UsQuake/fuzzingbook_rs on toolchain 4d98531622e1718ae0bc3c7a1ab9cd8938428452 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "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-4-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" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8f61b2839418ea128c10a024b28209fb9cc793b56c288e63229e77cd1700a9dc [INFO] running `Command { std: "docker" "start" "-a" "8f61b2839418ea128c10a024b28209fb9cc793b56c288e63229e77cd1700a9dc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8f61b2839418ea128c10a024b28209fb9cc793b56c288e63229e77cd1700a9dc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8f61b2839418ea128c10a024b28209fb9cc793b56c288e63229e77cd1700a9dc", kill_on_drop: false }` [INFO] [stdout] 8f61b2839418ea128c10a024b28209fb9cc793b56c288e63229e77cd1700a9dc [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 -Dtail_expr_drop_order" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7bc9f86684106d01b5ef2a748918c2cd7ef8d5680f6bd232b71f6c071c2efe02 [INFO] running `Command { std: "docker" "start" "-a" "7bc9f86684106d01b5ef2a748918c2cd7ef8d5680f6bd232b71f6c071c2efe02", kill_on_drop: false }` [INFO] [stderr] Compiling crossbeam-utils v0.8.19 [INFO] [stderr] Compiling rayon-core v1.12.1 [INFO] [stderr] Checking either v1.11.0 [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 fuzzingbook_rs v0.1.0 (/opt/rustwide/workdir) [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 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: `time::Instant` [INFO] [stdout] --> src/grammar_fuzzer/mod.rs:8:27 [INFO] [stdout] | [INFO] [stdout] 8 | hash::{Hash, Hasher}, time::Instant, [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] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `time::Instant` [INFO] [stdout] --> src/grammar_fuzzer/mod.rs:8:27 [INFO] [stdout] | [INFO] [stdout] 8 | hash::{Hash, Hasher}, time::Instant, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `expansion` is never read [INFO] [stdout] --> src/grammar/mod.rs:188:25 [INFO] [stdout] | [INFO] [stdout] 188 | 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:188:25 [INFO] [stdout] | [INFO] [stdout] 188 | 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:101:9 [INFO] [stdout] | [INFO] [stdout] 101 | 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:114:9 [INFO] [stdout] | [INFO] [stdout] 114 | expansion: &Expansion, [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_expansion` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `res` is never read [INFO] [stdout] --> src/grammar_fuzzer/mod.rs:225:25 [INFO] [stdout] | [INFO] [stdout] 225 | let mut res = 0.0; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `node` [INFO] [stdout] --> src/grammar_fuzzer/mod.rs:101:9 [INFO] [stdout] | [INFO] [stdout] 101 | 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:114:9 [INFO] [stdout] | [INFO] [stdout] 114 | expansion: &Expansion, [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_expansion` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `res` is never read [INFO] [stdout] --> src/grammar_fuzzer/mod.rs:225:25 [INFO] [stdout] | [INFO] [stdout] 225 | let mut res = 0.0; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `trim_grammar` is never used [INFO] [stdout] --> src/grammar/mod.rs:405:4 [INFO] [stdout] | [INFO] [stdout] 405 | 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: type alias `Var` is never used [INFO] [stdout] --> src/grammar_fuzzer/var_ctx.rs:15:6 [INFO] [stdout] | [INFO] [stdout] 15 | type Var = (Ident, Trait); [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:405:4 [INFO] [stdout] | [INFO] [stdout] 405 | 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: type alias `Var` is never used [INFO] [stdout] --> src/grammar_fuzzer/var_ctx.rs:15:6 [INFO] [stdout] | [INFO] [stdout] 15 | type Var = (Ident, Trait); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/grammar_fuzzer/mod.rs:257:42 [INFO] [stdout] | [INFO] [stdout] 257 | self.expansion_cost(exp, HashSet::from([symbol.clone()]), &mut HashMap::new()), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [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] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/grammar_fuzzer/mod.rs:257:42 [INFO] [stdout] | [INFO] [stdout] 257 | self.expansion_cost(exp, HashSet::from([symbol.clone()]), &mut HashMap::new()), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `fuzzingbook_rs` (lib test) due to 2 previous errors; 11 warnings emitted [INFO] [stdout] error: aborting due to 1 previous error; 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `fuzzingbook_rs` (lib) due to 2 previous errors; 10 warnings emitted [INFO] running `Command { std: "docker" "inspect" "7bc9f86684106d01b5ef2a748918c2cd7ef8d5680f6bd232b71f6c071c2efe02", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7bc9f86684106d01b5ef2a748918c2cd7ef8d5680f6bd232b71f6c071c2efe02", kill_on_drop: false }` [INFO] [stdout] 7bc9f86684106d01b5ef2a748918c2cd7ef8d5680f6bd232b71f6c071c2efe02