[INFO] fetching crate grepox 0.2.19...
[INFO] building grepox-0.2.19 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] extracting crate grepox 0.2.19 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate grepox 0.2.19 on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1-tc1/source/.cargo/config.toml
[INFO] started tweaking crates.io crate grepox 0.2.19
[INFO] finished tweaking crates.io crate grepox 0.2.19
[INFO] tweaked toml for crates.io crate grepox 0.2.19 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate grepox 0.2.19 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mimalloc v0.1.30
[INFO] [stderr]   Downloaded memx v0.1.20
[INFO] [stderr]   Downloaded bstr v1.0.1
[INFO] [stderr]   Downloaded libmimalloc-sys v0.1.26
[INFO] [stderr]   Downloaded naive_opt v0.1.18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 56d8117fa3b9f09b8a5f52683cfa556dcb0bcd2923cd7cbca130ee07a9c43bbe
[INFO] running `Command { std: "docker" "start" "-a" "56d8117fa3b9f09b8a5f52683cfa556dcb0bcd2923cd7cbca130ee07a9c43bbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "56d8117fa3b9f09b8a5f52683cfa556dcb0bcd2923cd7cbca130ee07a9c43bbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56d8117fa3b9f09b8a5f52683cfa556dcb0bcd2923cd7cbca130ee07a9c43bbe", kill_on_drop: false }`
[INFO] [stdout] 56d8117fa3b9f09b8a5f52683cfa556dcb0bcd2923cd7cbca130ee07a9c43bbe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f0bf0a0b3ff416a02e9bff02fdbf88028d6a273333481fe7fd19dd9f02cd200
[INFO] running `Command { std: "docker" "start" "-a" "4f0bf0a0b3ff416a02e9bff02fdbf88028d6a273333481fe7fd19dd9f02cd200", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.7
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling once_cell v1.16.0
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]    Compiling libmimalloc-sys v0.1.26
[INFO] [stderr]    Compiling aho-corasick v0.7.19
[INFO] [stderr]    Compiling bstr v1.0.1
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling memx v0.1.20
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling mimalloc v0.1.30
[INFO] [stderr]    Compiling naive_opt v0.1.18
[INFO] [stderr]    Compiling regex v1.6.0
[INFO] [stderr]    Compiling grepox v0.2.19 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `insert_bytes` is never used
[INFO] [stdout]    --> src/main.rs:589:8
[INFO] [stdout]     |
[INFO] [stdout] 588 | trait InsertBytes {
[INFO] [stdout]     |       ----------- method in this trait
[INFO] [stdout] 589 |     fn insert_bytes(&mut self, idx: usize, bytes: &[u8]);
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.09s
[INFO] running `Command { std: "docker" "inspect" "4f0bf0a0b3ff416a02e9bff02fdbf88028d6a273333481fe7fd19dd9f02cd200", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f0bf0a0b3ff416a02e9bff02fdbf88028d6a273333481fe7fd19dd9f02cd200", kill_on_drop: false }`
[INFO] [stdout] 4f0bf0a0b3ff416a02e9bff02fdbf88028d6a273333481fe7fd19dd9f02cd200
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 12721a5760cead73104f05895d120c388ed9ee894a76279906106495973ffb73
[INFO] running `Command { std: "docker" "start" "-a" "12721a5760cead73104f05895d120c388ed9ee894a76279906106495973ffb73", kill_on_drop: false }`
[INFO] [stderr]    Compiling grepox v0.2.19 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `insert_bytes` is never used
[INFO] [stdout]    --> src/main.rs:589:8
[INFO] [stdout]     |
[INFO] [stdout] 588 | trait InsertBytes {
[INFO] [stdout]     |       ----------- method in this trait
[INFO] [stdout] 589 |     fn insert_bytes(&mut self, idx: usize, bytes: &[u8]);
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "12721a5760cead73104f05895d120c388ed9ee894a76279906106495973ffb73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12721a5760cead73104f05895d120c388ed9ee894a76279906106495973ffb73", kill_on_drop: false }`
[INFO] [stdout] 12721a5760cead73104f05895d120c388ed9ee894a76279906106495973ffb73