[INFO] cloning repository https://github.com/aleksanderwawrzyniak/genetic
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aleksanderwawrzyniak/genetic" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faleksanderwawrzyniak%2Fgenetic", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faleksanderwawrzyniak%2Fgenetic'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c72f49cc51fd8199d9ccaaa24e0995bab51fc21b
[INFO] checking aleksanderwawrzyniak/genetic against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faleksanderwawrzyniak%2Fgenetic" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/aleksanderwawrzyniak/genetic
[INFO] finished tweaking git repo https://github.com/aleksanderwawrzyniak/genetic
[INFO] tweaked toml for git repo https://github.com/aleksanderwawrzyniak/genetic written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/aleksanderwawrzyniak/genetic on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/aleksanderwawrzyniak/genetic already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 78f9582ca5976cadccafcd17fe7cbe13d3c9ae32f58c9867be9ef9ebe30ee1a8
[INFO] running `Command { std: "docker" "start" "-a" "78f9582ca5976cadccafcd17fe7cbe13d3c9ae32f58c9867be9ef9ebe30ee1a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "78f9582ca5976cadccafcd17fe7cbe13d3c9ae32f58c9867be9ef9ebe30ee1a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78f9582ca5976cadccafcd17fe7cbe13d3c9ae32f58c9867be9ef9ebe30ee1a8", kill_on_drop: false }`
[INFO] [stdout] 78f9582ca5976cadccafcd17fe7cbe13d3c9ae32f58c9867be9ef9ebe30ee1a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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=forbid -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 422806f81dbd90946e921f4be20c9ce09cc3af8bad86f3caa264c02b34945f8c
[INFO] running `Command { std: "docker" "start" "-a" "422806f81dbd90946e921f4be20c9ce09cc3af8bad86f3caa264c02b34945f8c", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.11
[INFO] [stderr]    Compiling proc-macro-error v0.4.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.3
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking matrixmultiply v0.2.3
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking alga v0.9.3
[INFO] [stderr]     Checking nalgebra v0.20.0
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling structopt-derive v0.4.4
[INFO] [stderr]     Checking structopt v0.3.11
[INFO] [stderr]     Checking genetic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/opt.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | /     /// Output file for the generated values
[INFO] [stdout] 37 | |     pub output_file: Option<String>,
[INFO] [stdout]    | |___________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/opt.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | /     /// path to CSV file generated by the `Generate` sub command
[INFO] [stdout] 43 | |     pub file_name: Option<String>,
[INFO] [stdout]    | |_________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `genetic` (bin "genetic" test) due to 3 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/opt.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 | /     /// File with generated tasks
[INFO] [stdout] 57 | |     pub file_name: Option<String>,
[INFO] [stdout]    | |_________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/opt.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | /     /// Output file for the generated values
[INFO] [stdout] 37 | |     pub output_file: Option<String>,
[INFO] [stdout]    | |___________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/opt.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | /     /// path to CSV file generated by the `Generate` sub command
[INFO] [stdout] 43 | |     pub file_name: Option<String>,
[INFO] [stdout]    | |_________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/opt.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 | /     /// File with generated tasks
[INFO] [stdout] 57 | |     pub file_name: Option<String>,
[INFO] [stdout]    | |_________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `genetic` (bin "genetic") due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "422806f81dbd90946e921f4be20c9ce09cc3af8bad86f3caa264c02b34945f8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "422806f81dbd90946e921f4be20c9ce09cc3af8bad86f3caa264c02b34945f8c", kill_on_drop: false }`
[INFO] [stdout] 422806f81dbd90946e921f4be20c9ce09cc3af8bad86f3caa264c02b34945f8c
