[INFO] fetching crate libgrep-rs 0.1.4...
[INFO] testing libgrep-rs-0.1.4 against 1.60.0 for beta-1.61-1
[INFO] extracting crate libgrep-rs 0.1.4 into /workspace/builds/worker-16/source
[INFO] validating manifest of crates.io crate libgrep-rs 0.1.4 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 libgrep-rs 0.1.4
[INFO] finished tweaking crates.io crate libgrep-rs 0.1.4
[INFO] tweaked toml for crates.io crate libgrep-rs 0.1.4 written to /workspace/builds/worker-16/source/Cargo.toml
[INFO] crate crates.io crate libgrep-rs 0.1.4 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-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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] a898757ae9366062f66ccd53832331b71459e65083b23526e5d77f277c47fdb7
[INFO] running `Command { std: "docker" "start" "-a" "a898757ae9366062f66ccd53832331b71459e65083b23526e5d77f277c47fdb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a898757ae9366062f66ccd53832331b71459e65083b23526e5d77f277c47fdb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a898757ae9366062f66ccd53832331b71459e65083b23526e5d77f277c47fdb7", kill_on_drop: false }`
[INFO] [stdout] a898757ae9366062f66ccd53832331b71459e65083b23526e5d77f277c47fdb7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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] effb37b95246f5b8a5ad402ef5d8fc5ccf38ecb14fbd00c5559462bea4fadd4a
[INFO] running `Command { std: "docker" "start" "-a" "effb37b95246f5b8a5ad402ef5d8fc5ccf38ecb14fbd00c5559462bea4fadd4a", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]    Compiling regex v1.3.7
[INFO] [stderr]    Compiling libgrep-rs v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.63s
[INFO] running `Command { std: "docker" "inspect" "effb37b95246f5b8a5ad402ef5d8fc5ccf38ecb14fbd00c5559462bea4fadd4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "effb37b95246f5b8a5ad402ef5d8fc5ccf38ecb14fbd00c5559462bea4fadd4a", kill_on_drop: false }`
[INFO] [stdout] effb37b95246f5b8a5ad402ef5d8fc5ccf38ecb14fbd00c5559462bea4fadd4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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] 1746efe7980ea246fee3f51981cd120726dc34bb4cfc2f2a945e73f81feb1dcc
[INFO] running `Command { std: "docker" "start" "-a" "1746efe7980ea246fee3f51981cd120726dc34bb4cfc2f2a945e73f81feb1dcc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libgrep-rs v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:179:13
[INFO] [stdout]     |
[INFO] [stdout] 179 |         let mut return_text: String = searcher.search();
[INFO] [stdout]     |             ----^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` 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 1.03s
[INFO] running `Command { std: "docker" "inspect" "1746efe7980ea246fee3f51981cd120726dc34bb4cfc2f2a945e73f81feb1dcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1746efe7980ea246fee3f51981cd120726dc34bb4cfc2f2a945e73f81feb1dcc", kill_on_drop: false }`
[INFO] [stdout] 1746efe7980ea246fee3f51981cd120726dc34bb4cfc2f2a945e73f81feb1dcc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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] 4f7b71c0b974311d815c71b8c0a73f6f85faeee92af7e16d5b96f0f59458d7ee
[INFO] running `Command { std: "docker" "start" "-a" "4f7b71c0b974311d815c71b8c0a73f6f85faeee92af7e16d5b96f0f59458d7ee", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:179:13
[INFO] [stderr]     |
[INFO] [stderr] 179 |         let mut return_text: String = searcher.search();
[INFO] [stderr]     |             ----^^^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `libgrep-rs` (lib test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.57s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/libgrep_rs-c047dab32ec02c56)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::custom_delim ... ok
[INFO] [stdout] test tests::case_insensitive ... ok
[INFO] [stdout] test tests::exclude ... ok
[INFO] [stdout] test tests::include ... ok
[INFO] [stdout] test tests::include_after ... ok
[INFO] [stdout] test tests::include_before ... ok
[INFO] [stdout] test tests::show_line ... ok
[INFO] [stdout] test tests::regex ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests libgrep-rs
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 18) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4f7b71c0b974311d815c71b8c0a73f6f85faeee92af7e16d5b96f0f59458d7ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f7b71c0b974311d815c71b8c0a73f6f85faeee92af7e16d5b96f0f59458d7ee", kill_on_drop: false }`
[INFO] [stdout] 4f7b71c0b974311d815c71b8c0a73f6f85faeee92af7e16d5b96f0f59458d7ee