[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] testing martindisch/probability against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmartindisch%2Fprobability" "/workspace/builds/worker-101/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-101/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/martindisch/probability on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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-101/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" "+62efba8a050c64249dab942951bb28f710208bc8" "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 libc v0.2.88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9caae9d74aebb162ab63101a69ee21d70adc6daafc3c933aeb086d80e828d5e2
[INFO] running `Command { std: "docker" "start" "-a" "9caae9d74aebb162ab63101a69ee21d70adc6daafc3c933aeb086d80e828d5e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9caae9d74aebb162ab63101a69ee21d70adc6daafc3c933aeb086d80e828d5e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9caae9d74aebb162ab63101a69ee21d70adc6daafc3c933aeb086d80e828d5e2", kill_on_drop: false }`
[INFO] [stdout] 9caae9d74aebb162ab63101a69ee21d70adc6daafc3c933aeb086d80e828d5e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33cbc919944b2f7b65062f69eb95a70b6bd12d4ce0618432ddc3b2296e63db34
[INFO] running `Command { std: "docker" "start" "-a" "33cbc919944b2f7b65062f69eb95a70b6bd12d4ce0618432ddc3b2296e63db34", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling 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: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.27s
[INFO] running `Command { std: "docker" "inspect" "33cbc919944b2f7b65062f69eb95a70b6bd12d4ce0618432ddc3b2296e63db34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33cbc919944b2f7b65062f69eb95a70b6bd12d4ce0618432ddc3b2296e63db34", kill_on_drop: false }`
[INFO] [stdout] 33cbc919944b2f7b65062f69eb95a70b6bd12d4ce0618432ddc3b2296e63db34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15615639df966a6c1120dc849b941f4fc9fd2ab752d92e41ac6b90525fb36e08
[INFO] running `Command { std: "docker" "start" "-a" "15615639df966a6c1120dc849b941f4fc9fd2ab752d92e41ac6b90525fb36e08", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling 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: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 10.46s
[INFO] running `Command { std: "docker" "inspect" "15615639df966a6c1120dc849b941f4fc9fd2ab752d92e41ac6b90525fb36e08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15615639df966a6c1120dc849b941f4fc9fd2ab752d92e41ac6b90525fb36e08", kill_on_drop: false }`
[INFO] [stdout] 15615639df966a6c1120dc849b941f4fc9fd2ab752d92e41ac6b90525fb36e08
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6ea9252e6186677e61a9c1b3e0bd7c9a87a1e28ddb164cfac2d6236bb14b9f3f
[INFO] running `Command { std: "docker" "start" "-a" "6ea9252e6186677e61a9c1b3e0bd7c9a87a1e28ddb164cfac2d6236bb14b9f3f", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `strategy_name`
[INFO] [stderr]   --> src/booking.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     strategy_name: &'static str,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `average_cost`
[INFO] [stderr]   --> src/booking.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     average_cost: f64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `contestant_strategy`
[INFO] [stderr]   --> src/goat.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 73 |     contestant_strategy: &'static str,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `number_of_wins`
[INFO] [stderr]   --> src/goat.rs:74:5
[INFO] [stderr]    |
[INFO] [stderr] 74 |     number_of_wins: u32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `probability` (bin "probability" test) generated 4 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/probability-e87d83613de96764)
[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" "6ea9252e6186677e61a9c1b3e0bd7c9a87a1e28ddb164cfac2d6236bb14b9f3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ea9252e6186677e61a9c1b3e0bd7c9a87a1e28ddb164cfac2d6236bb14b9f3f", kill_on_drop: false }`
[INFO] [stdout] 6ea9252e6186677e61a9c1b3e0bd7c9a87a1e28ddb164cfac2d6236bb14b9f3f