[INFO] cloning repository https://github.com/vernonrj/similarity
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vernonrj/similarity" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvernonrj%2Fsimilarity", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvernonrj%2Fsimilarity'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6cd3770a9ad121ae15e02800c0337e7a1b028e48
[INFO] testing vernonrj/similarity against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvernonrj%2Fsimilarity" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vernonrj/similarity 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 git repo https://github.com/vernonrj/similarity
[INFO] finished tweaking git repo https://github.com/vernonrj/similarity
[INFO] tweaked toml for git repo https://github.com/vernonrj/similarity written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/vernonrj/similarity 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cfg-if v0.1.0
[INFO] [stderr]   Downloaded rustc-demangle v0.1.4
[INFO] [stderr]   Downloaded gcc v0.3.43
[INFO] [stderr]   Downloaded backtrace v0.3.0
[INFO] [stderr]   Downloaded libc v0.2.21
[INFO] [stderr]   Downloaded unicode-segmentation v1.1.0
[INFO] [stderr]   Downloaded bitflags v0.8.0
[INFO] [stderr]   Downloaded term_size v0.2.3
[INFO] [stderr]   Downloaded vec_map v0.7.0
[INFO] [stderr]   Downloaded clap v2.21.1
[INFO] [stderr]   Downloaded backtrace-sys v0.1.10
[INFO] [stderr]   Downloaded dbghelp-sys v0.2.0
[INFO] [stderr]   Downloaded memchr v1.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 71f557868d37758cd2e7e2be6b20de8963a7e4f881fc55bf4bb799d2bfe1e4c6
[INFO] running `Command { std: "docker" "start" "-a" "71f557868d37758cd2e7e2be6b20de8963a7e4f881fc55bf4bb799d2bfe1e4c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71f557868d37758cd2e7e2be6b20de8963a7e4f881fc55bf4bb799d2bfe1e4c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71f557868d37758cd2e7e2be6b20de8963a7e4f881fc55bf4bb799d2bfe1e4c6", kill_on_drop: false }`
[INFO] [stdout] 71f557868d37758cd2e7e2be6b20de8963a7e4f881fc55bf4bb799d2bfe1e4c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 2cd24318f6b564527e72767d2f3ea9105a3d06d0169770f0bb205684444f44d0
[INFO] running `Command { std: "docker" "start" "-a" "2cd24318f6b564527e72767d2f3ea9105a3d06d0169770f0bb205684444f44d0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling libc v0.2.21
[INFO] [stderr]    Compiling gcc v0.3.43
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling backtrace v0.3.0
[INFO] [stderr]    Compiling cfg-if v0.1.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.4
[INFO] [stderr]    Compiling ansi_term v0.9.0
[INFO] [stderr]    Compiling strsim v0.6.0
[INFO] [stderr]    Compiling bitflags v0.8.0
[INFO] [stderr]    Compiling unicode-segmentation v1.1.0
[INFO] [stderr]    Compiling vec_map v0.7.0
[INFO] [stderr]    Compiling term_size v0.2.3
[INFO] [stderr]    Compiling atty v0.2.2
[INFO] [stderr]    Compiling memchr v1.0.1
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling clap v2.21.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.10
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling similarity v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:42:21
[INFO] [stdout]    |
[INFO] [stdout] 42 |                 let mut found = matches.entry(line).or_insert(0.0);
[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 dev [unoptimized + debuginfo] target(s) in 21.29s
[INFO] running `Command { std: "docker" "inspect" "2cd24318f6b564527e72767d2f3ea9105a3d06d0169770f0bb205684444f44d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cd24318f6b564527e72767d2f3ea9105a3d06d0169770f0bb205684444f44d0", kill_on_drop: false }`
[INFO] [stdout] 2cd24318f6b564527e72767d2f3ea9105a3d06d0169770f0bb205684444f44d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 353d0d75d3ad971c052195ad16ef876488d22daf83d5709960b86c5a08beb4f1
[INFO] running `Command { std: "docker" "start" "-a" "353d0d75d3ad971c052195ad16ef876488d22daf83d5709960b86c5a08beb4f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling similarity v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:42:21
[INFO] [stdout]    |
[INFO] [stdout] 42 |                 let mut found = matches.entry(line).or_insert(0.0);
[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 0.54s
[INFO] running `Command { std: "docker" "inspect" "353d0d75d3ad971c052195ad16ef876488d22daf83d5709960b86c5a08beb4f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "353d0d75d3ad971c052195ad16ef876488d22daf83d5709960b86c5a08beb4f1", kill_on_drop: false }`
[INFO] [stdout] 353d0d75d3ad971c052195ad16ef876488d22daf83d5709960b86c5a08beb4f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 44624b0abb75b579affd1c6731fc5dbe7f465028966646c0c1db8cbce467466b
[INFO] running `Command { std: "docker" "start" "-a" "44624b0abb75b579affd1c6731fc5dbe7f465028966646c0c1db8cbce467466b", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:42:21
[INFO] [stderr]    |
[INFO] [stderr] 42 |                 let mut found = matches.entry(line).or_insert(0.0);
[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: `similarity` (bin "similarity" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/similarity-70c97b22b0120a5c)
[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" "44624b0abb75b579affd1c6731fc5dbe7f465028966646c0c1db8cbce467466b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44624b0abb75b579affd1c6731fc5dbe7f465028966646c0c1db8cbce467466b", kill_on_drop: false }`
[INFO] [stdout] 44624b0abb75b579affd1c6731fc5dbe7f465028966646c0c1db8cbce467466b