[INFO] cloning repository https://github.com/martindisch/probability
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/martindisch/probability" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmartindisch%2Fprobability", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmartindisch%2Fprobability'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 064386828a1764729885903b3ad9dd2d37a1bf89
[INFO] checking martindisch/probability against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmartindisch%2Fprobability" "/workspace/builds/worker-111/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-111/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/martindisch/probability on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/martindisch/probability
[INFO] finished tweaking git repo https://github.com/martindisch/probability
[INFO] tweaked toml for git repo https://github.com/martindisch/probability written to /workspace/builds/worker-111/source/Cargo.toml
[INFO] crate git repo https://github.com/martindisch/probability already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "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-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e8d0ce55b53bd2cfeae6ca60b8da8257833f0daeb6a335d438f843d06ded9c15
[INFO] running `Command { std: "docker" "start" "-a" "e8d0ce55b53bd2cfeae6ca60b8da8257833f0daeb6a335d438f843d06ded9c15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e8d0ce55b53bd2cfeae6ca60b8da8257833f0daeb6a335d438f843d06ded9c15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8d0ce55b53bd2cfeae6ca60b8da8257833f0daeb6a335d438f843d06ded9c15", kill_on_drop: false }`
[INFO] [stdout] e8d0ce55b53bd2cfeae6ca60b8da8257833f0daeb6a335d438f843d06ded9c15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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" "-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" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 863e8f5b5cd42e252f9d9ac2cd9f9ff4e4f73635504cdbea6254a6748f6d4e46
[INFO] running `Command { std: "docker" "start" "-a" "863e8f5b5cd42e252f9d9ac2cd9f9ff4e4f73635504cdbea6254a6748f6d4e46", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking probability v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `strategy_name`
[INFO] [stdout]   --> src/booking.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 |     strategy_name: &'static str,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `average_cost`
[INFO] [stdout]   --> src/booking.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 |     average_cost: f64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `contestant_strategy`
[INFO] [stdout]   --> src/goat.rs:73:5
[INFO] [stdout]    |
[INFO] [stdout] 73 |     contestant_strategy: &'static str,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `number_of_wins`
[INFO] [stdout]   --> src/goat.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 74 |     number_of_wins: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `strategy_name`
[INFO] [stdout]   --> src/booking.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 |     strategy_name: &'static str,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `average_cost`
[INFO] [stdout]   --> src/booking.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 |     average_cost: f64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `contestant_strategy`
[INFO] [stdout]   --> src/goat.rs:73:5
[INFO] [stdout]    |
[INFO] [stdout] 73 |     contestant_strategy: &'static str,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `number_of_wins`
[INFO] [stdout]   --> src/goat.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 74 |     number_of_wins: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.06s
[INFO] running `Command { std: "docker" "inspect" "863e8f5b5cd42e252f9d9ac2cd9f9ff4e4f73635504cdbea6254a6748f6d4e46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "863e8f5b5cd42e252f9d9ac2cd9f9ff4e4f73635504cdbea6254a6748f6d4e46", kill_on_drop: false }`
[INFO] [stdout] 863e8f5b5cd42e252f9d9ac2cd9f9ff4e4f73635504cdbea6254a6748f6d4e46