[INFO] fetching crate grepox 0.2.19...
[INFO] testing grepox-0.2.19 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate grepox 0.2.19 into /workspace/builds/worker-4-tc2/source
[INFO] removed /workspace/builds/worker-4-tc2/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-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate grepox 0.2.19 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e5c0c54c60fc501870eba89be778cffe101454b8bf67f0639787cf96e35c3562
[INFO] running `Command { std: "docker" "start" "-a" "e5c0c54c60fc501870eba89be778cffe101454b8bf67f0639787cf96e35c3562", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e5c0c54c60fc501870eba89be778cffe101454b8bf67f0639787cf96e35c3562", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5c0c54c60fc501870eba89be778cffe101454b8bf67f0639787cf96e35c3562", kill_on_drop: false }`
[INFO] [stdout] e5c0c54c60fc501870eba89be778cffe101454b8bf67f0639787cf96e35c3562
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 21b4b34fcac5cbb0f9540eca1745a08d9ac68bd49131625ac120a15fa3bc956e
[INFO] running `Command { std: "docker" "start" "-a" "21b4b34fcac5cbb0f9540eca1745a08d9ac68bd49131625ac120a15fa3bc956e", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.7
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]    Compiling once_cell v1.16.0
[INFO] [stderr]    Compiling regex-automata v0.1.10
[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 libmimalloc-sys v0.1.26
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling memx v0.1.20
[INFO] [stderr]    Compiling naive_opt v0.1.18
[INFO] [stderr]    Compiling mimalloc v0.1.30
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.57s
[INFO] running `Command { std: "docker" "inspect" "21b4b34fcac5cbb0f9540eca1745a08d9ac68bd49131625ac120a15fa3bc956e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21b4b34fcac5cbb0f9540eca1745a08d9ac68bd49131625ac120a15fa3bc956e", kill_on_drop: false }`
[INFO] [stdout] 21b4b34fcac5cbb0f9540eca1745a08d9ac68bd49131625ac120a15fa3bc956e
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e2a278ffb8bb041b4fa692029baaf30b4b981942a1bc965ac2f65eacfd10e353
[INFO] running `Command { std: "docker" "start" "-a" "e2a278ffb8bb041b4fa692029baaf30b4b981942a1bc965ac2f65eacfd10e353", 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "e2a278ffb8bb041b4fa692029baaf30b4b981942a1bc965ac2f65eacfd10e353", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2a278ffb8bb041b4fa692029baaf30b4b981942a1bc965ac2f65eacfd10e353", kill_on_drop: false }`
[INFO] [stdout] e2a278ffb8bb041b4fa692029baaf30b4b981942a1bc965ac2f65eacfd10e353
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e6dec8be060f824b66dd8686e5d4229addd0b0115e6f8322cdc332f6a61714f0
[INFO] running `Command { std: "docker" "start" "-a" "e6dec8be060f824b66dd8686e5d4229addd0b0115e6f8322cdc332f6a61714f0", kill_on_drop: false }`
[INFO] [stderr] warning: method `insert_bytes` is never used
[INFO] [stderr]    --> src/main.rs:589:8
[INFO] [stderr]     |
[INFO] [stderr] 588 | trait InsertBytes {
[INFO] [stderr]     |       ----------- method in this trait
[INFO] [stderr] 589 |     fn insert_bytes(&mut self, idx: usize, bytes: &[u8]);
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `grepox` (bin "grepox" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/grepox-a530221fccfa08c3)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e6dec8be060f824b66dd8686e5d4229addd0b0115e6f8322cdc332f6a61714f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6dec8be060f824b66dd8686e5d4229addd0b0115e6f8322cdc332f6a61714f0", kill_on_drop: false }`
[INFO] [stdout] e6dec8be060f824b66dd8686e5d4229addd0b0115e6f8322cdc332f6a61714f0