[INFO] fetching crate regex-cli 0.2.1...
[INFO] testing regex-cli-0.2.1 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate regex-cli 0.2.1 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate regex-cli 0.2.1
[INFO] finished tweaking crates.io crate regex-cli 0.2.1
[INFO] tweaked toml for crates.io crate regex-cli 0.2.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate regex-cli 0.2.1 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate regex-cli 0.2.1 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lexopt v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac24ee807a5db03c0bfe5538957cc4c31fe2a91853beee0dbafe4bde5772ab62
[INFO] running `Command { std: "docker" "start" "-a" "ac24ee807a5db03c0bfe5538957cc4c31fe2a91853beee0dbafe4bde5772ab62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac24ee807a5db03c0bfe5538957cc4c31fe2a91853beee0dbafe4bde5772ab62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac24ee807a5db03c0bfe5538957cc4c31fe2a91853beee0dbafe4bde5772ab62", kill_on_drop: false }`
[INFO] [stdout] ac24ee807a5db03c0bfe5538957cc4c31fe2a91853beee0dbafe4bde5772ab62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] dc3d3c7a9b971e289f246b3fd95413d16328a9e1c9bf783278239fa124c84a4a
[INFO] running `Command { std: "docker" "start" "-a" "dc3d3c7a9b971e289f246b3fd95413d16328a9e1c9bf783278239fa124c84a4a", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling anyhow v1.0.86
[INFO] [stderr]    Compiling regex-syntax v0.8.4
[INFO] [stderr]    Compiling unicode-width v0.1.13
[INFO] [stderr]    Compiling regex-lite v0.1.6
[INFO] [stderr]    Compiling textwrap v0.16.1
[INFO] [stderr]    Compiling lexopt v0.3.0
[INFO] [stderr]    Compiling tabwriter v1.4.0
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling bstr v1.9.1
[INFO] [stderr]    Compiling memmap2 v0.9.4
[INFO] [stderr]    Compiling regex-automata v0.4.7
[INFO] [stderr]    Compiling regex v1.10.5
[INFO] [stderr]    Compiling regex-cli v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Args` is never constructed
[INFO] [stdout]   --> cmd/find/half/mod.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | struct Args {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Args` has derived impls for the traits `Debug` and `Default`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.38s
[INFO] running `Command { std: "docker" "inspect" "dc3d3c7a9b971e289f246b3fd95413d16328a9e1c9bf783278239fa124c84a4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc3d3c7a9b971e289f246b3fd95413d16328a9e1c9bf783278239fa124c84a4a", kill_on_drop: false }`
[INFO] [stdout] dc3d3c7a9b971e289f246b3fd95413d16328a9e1c9bf783278239fa124c84a4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] bf58badd605f433fc47846366c20ddd2ed33919dd230aece9935de40eb18f9aa
[INFO] running `Command { std: "docker" "start" "-a" "bf58badd605f433fc47846366c20ddd2ed33919dd230aece9935de40eb18f9aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-cli v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Args` is never constructed
[INFO] [stdout]   --> cmd/find/half/mod.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | struct Args {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Args` has derived impls for the traits `Debug` and `Default`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "bf58badd605f433fc47846366c20ddd2ed33919dd230aece9935de40eb18f9aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf58badd605f433fc47846366c20ddd2ed33919dd230aece9935de40eb18f9aa", kill_on_drop: false }`
[INFO] [stdout] bf58badd605f433fc47846366c20ddd2ed33919dd230aece9935de40eb18f9aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 0c69e0d0cdcc7eb0f2ef2f6118d38e802e5310045d5390f3fe156a71ad96db14
[INFO] running `Command { std: "docker" "start" "-a" "0c69e0d0cdcc7eb0f2ef2f6118d38e802e5310045d5390f3fe156a71ad96db14", kill_on_drop: false }`
[INFO] [stderr] warning: struct `Args` is never constructed
[INFO] [stderr]   --> cmd/find/half/mod.rs:53:8
[INFO] [stderr]    |
[INFO] [stderr] 53 | struct Args {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Args` has derived impls for the traits `Debug` and `Default`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `regex-cli` (bin "regex-cli" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests main.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/regex_cli-9a81f62fb4d14efb)
[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" "0c69e0d0cdcc7eb0f2ef2f6118d38e802e5310045d5390f3fe156a71ad96db14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c69e0d0cdcc7eb0f2ef2f6118d38e802e5310045d5390f3fe156a71ad96db14", kill_on_drop: false }`
[INFO] [stdout] 0c69e0d0cdcc7eb0f2ef2f6118d38e802e5310045d5390f3fe156a71ad96db14