[INFO] fetching crate grep_cdylib 0.1.3...
[INFO] testing grep_cdylib-0.1.3 against 1.60.0 for beta-1.61-1
[INFO] extracting crate grep_cdylib 0.1.3 into /workspace/builds/worker-113/source
[INFO] validating manifest of crates.io crate grep_cdylib 0.1.3 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate grep_cdylib 0.1.3
[INFO] finished tweaking crates.io crate grep_cdylib 0.1.3
[INFO] tweaked toml for crates.io crate grep_cdylib 0.1.3 written to /workspace/builds/worker-113/source/Cargo.toml
[INFO] crate crates.io crate grep_cdylib 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 89f242adfd09768ebcc07ba3b695dd97895288cc50ce9b9b6172ada319780b8e
[INFO] running `Command { std: "docker" "start" "-a" "89f242adfd09768ebcc07ba3b695dd97895288cc50ce9b9b6172ada319780b8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89f242adfd09768ebcc07ba3b695dd97895288cc50ce9b9b6172ada319780b8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89f242adfd09768ebcc07ba3b695dd97895288cc50ce9b9b6172ada319780b8e", kill_on_drop: false }`
[INFO] [stdout] 89f242adfd09768ebcc07ba3b695dd97895288cc50ce9b9b6172ada319780b8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52a8a6bac5dc14687693978bf3e6cda2ead33806fccaf17a5b96377c52d47914
[INFO] running `Command { std: "docker" "start" "-a" "52a8a6bac5dc14687693978bf3e6cda2ead33806fccaf17a5b96377c52d47914", kill_on_drop: false }`
[INFO] [stderr]    Compiling grep_cdylib v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.29s
[INFO] running `Command { std: "docker" "inspect" "52a8a6bac5dc14687693978bf3e6cda2ead33806fccaf17a5b96377c52d47914", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52a8a6bac5dc14687693978bf3e6cda2ead33806fccaf17a5b96377c52d47914", kill_on_drop: false }`
[INFO] [stdout] 52a8a6bac5dc14687693978bf3e6cda2ead33806fccaf17a5b96377c52d47914
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a28cb51fa4659f96ac8821a4f154882a45761f59c91132dc0c7c155929b63eb
[INFO] running `Command { std: "docker" "start" "-a" "5a28cb51fa4659f96ac8821a4f154882a45761f59c91132dc0c7c155929b63eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.55
[INFO] [stderr]    Compiling grep_cdylib v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Ok`
[INFO] [stdout]   --> examples/grep_extern/interface.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Ok,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BufferTooSmall`
[INFO] [stdout]   --> examples/grep_extern/interface.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     BufferTooSmall,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `End`
[INFO] [stdout]   --> examples/grep_extern/interface.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     End,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.81s
[INFO] running `Command { std: "docker" "inspect" "5a28cb51fa4659f96ac8821a4f154882a45761f59c91132dc0c7c155929b63eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a28cb51fa4659f96ac8821a4f154882a45761f59c91132dc0c7c155929b63eb", kill_on_drop: false }`
[INFO] [stdout] 5a28cb51fa4659f96ac8821a4f154882a45761f59c91132dc0c7c155929b63eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2df7f8728250b39b8d7b6883368458bb80a6ace735dac7d0a1887b8cf7d54c3b
[INFO] running `Command { std: "docker" "start" "-a" "2df7f8728250b39b8d7b6883368458bb80a6ace735dac7d0a1887b8cf7d54c3b", kill_on_drop: false }`
[INFO] [stderr] warning: variant is never constructed: `Ok`
[INFO] [stderr]   --> examples/grep_extern/interface.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Ok,
[INFO] [stderr]    |     ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BufferTooSmall`
[INFO] [stderr]   --> examples/grep_extern/interface.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     BufferTooSmall,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `End`
[INFO] [stderr]   --> examples/grep_extern/interface.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     End,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `grep_cdylib` (example "grep_extern") generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/grep_cdylib-1df61d3b6903bf6d)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::case_insensitive ... ok
[INFO] [stdout] test tests::case_sensitive ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2df7f8728250b39b8d7b6883368458bb80a6ace735dac7d0a1887b8cf7d54c3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2df7f8728250b39b8d7b6883368458bb80a6ace735dac7d0a1887b8cf7d54c3b", kill_on_drop: false }`
[INFO] [stdout] 2df7f8728250b39b8d7b6883368458bb80a6ace735dac7d0a1887b8cf7d54c3b