[INFO] fetching crate xgrep 0.1.0...
[INFO] testing xgrep-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate xgrep 0.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate xgrep 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate xgrep 0.1.0
[INFO] finished tweaking crates.io crate xgrep 0.1.0
[INFO] tweaked toml for crates.io crate xgrep 0.1.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate xgrep 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b2fabb52b681226538d1fec2fa76e10a23a0209368d4336be8f2ed1deeded827
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b2fabb52b681226538d1fec2fa76e10a23a0209368d4336be8f2ed1deeded827", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b2fabb52b681226538d1fec2fa76e10a23a0209368d4336be8f2ed1deeded827", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2fabb52b681226538d1fec2fa76e10a23a0209368d4336be8f2ed1deeded827", kill_on_drop: false }`
[INFO] [stdout] b2fabb52b681226538d1fec2fa76e10a23a0209368d4336be8f2ed1deeded827
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a1b9e0ffbd03e76ab0afd70e77b2af64b7457a011d5a819ac073ecc037c3cd19
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a1b9e0ffbd03e76ab0afd70e77b2af64b7457a011d5a819ac073ecc037c3cd19", kill_on_drop: false }`
[INFO] [stderr]    Compiling xgrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.62s
[INFO] running `Command { std: "docker" "inspect" "a1b9e0ffbd03e76ab0afd70e77b2af64b7457a011d5a819ac073ecc037c3cd19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1b9e0ffbd03e76ab0afd70e77b2af64b7457a011d5a819ac073ecc037c3cd19", kill_on_drop: false }`
[INFO] [stdout] a1b9e0ffbd03e76ab0afd70e77b2af64b7457a011d5a819ac073ecc037c3cd19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4d722a63766b56bf31a087db6062c5b025e4fa64627ae17189f70da9bdf26d5b
[INFO] running `Command { std: "docker" "start" "-a" "4d722a63766b56bf31a087db6062c5b025e4fa64627ae17189f70da9bdf26d5b", kill_on_drop: false }`
[INFO] [stderr]    Compiling xgrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `case_sensitive`
[INFO] [stdout]   --> src/lib.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn case_sensitive() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.64s
[INFO] running `Command { std: "docker" "inspect" "4d722a63766b56bf31a087db6062c5b025e4fa64627ae17189f70da9bdf26d5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d722a63766b56bf31a087db6062c5b025e4fa64627ae17189f70da9bdf26d5b", kill_on_drop: false }`
[INFO] [stdout] 4d722a63766b56bf31a087db6062c5b025e4fa64627ae17189f70da9bdf26d5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 383ac980a07683dc867a415a10842059f2a6d7559221991e56399afeed81b1e9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "383ac980a07683dc867a415a10842059f2a6d7559221991e56399afeed81b1e9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr] warning: function is never used: `case_sensitive`
[INFO] [stdout] running 2 tests
[INFO] [stderr]   --> src/lib.rs:20:8
[INFO] [stdout] test tests::one_test ... ok
[INFO] [stderr]    |
[INFO] [stdout] test tests::case_insensitive ... ok
[INFO] [stderr] 20 |     fn case_sensitive() {
[INFO] [stdout] 
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `xgrep` (lib test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.84s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/xgrep-a709f935ad674b8d)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/xgrep-7aa685252ece70b6)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests xgrep
[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] [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" "383ac980a07683dc867a415a10842059f2a6d7559221991e56399afeed81b1e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "383ac980a07683dc867a415a10842059f2a6d7559221991e56399afeed81b1e9", kill_on_drop: false }`
[INFO] [stdout] 383ac980a07683dc867a415a10842059f2a6d7559221991e56399afeed81b1e9