[INFO] cloning repository https://github.com/bhillmann/rustacean
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bhillmann/rustacean" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbhillmann%2Frustacean", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbhillmann%2Frustacean'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bd366f9bc8597d189b7890e27efc6b9e6bc8e8af
[INFO] testing bhillmann/rustacean against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbhillmann%2Frustacean" "/workspace/builds/worker-80/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-80/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bhillmann/rustacean on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bhillmann/rustacean
[INFO] finished tweaking git repo https://github.com/bhillmann/rustacean
[INFO] tweaked toml for git repo https://github.com/bhillmann/rustacean written to /workspace/builds/worker-80/source/Cargo.toml
[INFO] crate git repo https://github.com/bhillmann/rustacean already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8d06553e5feb71a468f3555b4104d4bbd9ca4f2a4f5fb0da30421cfc94b2940e
[INFO] running `Command { std: "docker" "start" "-a" "8d06553e5feb71a468f3555b4104d4bbd9ca4f2a4f5fb0da30421cfc94b2940e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d06553e5feb71a468f3555b4104d4bbd9ca4f2a4f5fb0da30421cfc94b2940e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d06553e5feb71a468f3555b4104d4bbd9ca4f2a4f5fb0da30421cfc94b2940e", kill_on_drop: false }`
[INFO] [stdout] 8d06553e5feb71a468f3555b4104d4bbd9ca4f2a4f5fb0da30421cfc94b2940e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e950c2e91a17be7768b3fba458ccd8b75ea73af3d5e2e06fcd76b1c33c14c71d
[INFO] running `Command { std: "docker" "start" "-a" "e950c2e91a17be7768b3fba458ccd8b75ea73af3d5e2e06fcd76b1c33c14c71d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.23
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling feature-probe v0.1.1
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling ndarray v0.13.1
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling bit-vec v0.6.2
[INFO] [stderr]    Compiling array-macro v1.0.5
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling bio v0.32.0
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling custom_derive v0.1.7
[INFO] [stderr]    Compiling triple_accel v0.3.4
[INFO] [stderr]    Compiling strum v0.18.0
[INFO] [stderr]    Compiling bytecount v0.6.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling bv v0.11.1
[INFO] [stderr]    Compiling newtype_derive v0.1.6
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling aho-corasick v0.7.13
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling ordered-float v1.1.0
[INFO] [stderr]    Compiling itertools-num v0.1.3
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling statrs v0.12.0
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/rustwide/workdir/guessing_game)
[INFO] [stderr]    Compiling enum-map-derive v0.4.3
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]    Compiling snafu-derive v0.6.9
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]    Compiling structopt-derive v0.4.11
[INFO] [stderr]    Compiling getset v0.0.9
[INFO] [stderr]    Compiling enum-map v0.6.3
[INFO] [stderr]    Compiling snafu v0.6.9
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling bstr v0.2.13
[INFO] [stderr]    Compiling multimap v0.8.2
[INFO] [stderr]    Compiling bio-types v0.7.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling csv v1.1.3
[INFO] [stderr]    Compiling structopt v0.3.18
[INFO] [stderr]    Compiling kmer v0.1.0 (/opt/rustwide/workdir/kmer)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> kmer/src/main.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let mut reader = BufReader::new(f?);
[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: field is never read: `pattern`
[INFO] [stdout]   --> kmer/src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pattern: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.41s
[INFO] running `Command { std: "docker" "inspect" "e950c2e91a17be7768b3fba458ccd8b75ea73af3d5e2e06fcd76b1c33c14c71d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e950c2e91a17be7768b3fba458ccd8b75ea73af3d5e2e06fcd76b1c33c14c71d", kill_on_drop: false }`
[INFO] [stdout] e950c2e91a17be7768b3fba458ccd8b75ea73af3d5e2e06fcd76b1c33c14c71d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 956fee1e1c3a65223cd276266609dbc7c50114163a231f594288eaf3bb61e4b2
[INFO] running `Command { std: "docker" "start" "-a" "956fee1e1c3a65223cd276266609dbc7c50114163a231f594288eaf3bb61e4b2", kill_on_drop: false }`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/rustwide/workdir/guessing_game)
[INFO] [stderr]    Compiling kmer v0.1.0 (/opt/rustwide/workdir/kmer)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> kmer/src/main.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let mut reader = BufReader::new(f?);
[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: field is never read: `pattern`
[INFO] [stdout]   --> kmer/src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pattern: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "956fee1e1c3a65223cd276266609dbc7c50114163a231f594288eaf3bb61e4b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "956fee1e1c3a65223cd276266609dbc7c50114163a231f594288eaf3bb61e4b2", kill_on_drop: false }`
[INFO] [stdout] 956fee1e1c3a65223cd276266609dbc7c50114163a231f594288eaf3bb61e4b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d685519b08dc3c6c24475b6be266f714b257ad29db882ef159689a6c767391d3
[INFO] running `Command { std: "docker" "start" "-a" "d685519b08dc3c6c24475b6be266f714b257ad29db882ef159689a6c767391d3", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> kmer/src/main.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 |     let mut reader = BufReader::new(f?);
[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: field is never read: `pattern`
[INFO] [stderr]   --> kmer/src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     pattern: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `kmer` (bin "kmer" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/guessing_game-25feddd2a241b8d3)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/kmer-02f9a8e2d20bcd1c)
[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" "d685519b08dc3c6c24475b6be266f714b257ad29db882ef159689a6c767391d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d685519b08dc3c6c24475b6be266f714b257ad29db882ef159689a6c767391d3", kill_on_drop: false }`
[INFO] [stdout] d685519b08dc3c6c24475b6be266f714b257ad29db882ef159689a6c767391d3