[INFO] cloning repository https://github.com/shbroster/card-games
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shbroster/card-games" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshbroster%2Fcard-games", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshbroster%2Fcard-games'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9ba022ade9ed13e1426d015862a25dd1e193816e
[INFO] checking shbroster/card-games against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshbroster%2Fcard-games" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shbroster/card-games on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/shbroster/card-games
[INFO] finished tweaking git repo https://github.com/shbroster/card-games
[INFO] tweaked toml for git repo https://github.com/shbroster/card-games written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/shbroster/card-games already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5000312cd64b6f102f33459a90802dbeaec8ea16e4083beacbeb62a7ad667d14
[INFO] running `Command { std: "docker" "start" "-a" "5000312cd64b6f102f33459a90802dbeaec8ea16e4083beacbeb62a7ad667d14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5000312cd64b6f102f33459a90802dbeaec8ea16e4083beacbeb62a7ad667d14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5000312cd64b6f102f33459a90802dbeaec8ea16e4083beacbeb62a7ad667d14", kill_on_drop: false }`
[INFO] [stdout] 5000312cd64b6f102f33459a90802dbeaec8ea16e4083beacbeb62a7ad667d14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 516455c5bbc40fe7002ccb2e46362b2444bac5bddf0bad54dca8073478f0b79a
[INFO] running `Command { std: "docker" "start" "-a" "516455c5bbc40fe7002ccb2e46362b2444bac5bddf0bad54dca8073478f0b79a", 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]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking card v0.1.0 (/opt/rustwide/workdir/card)
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking rand_core v0.6.1
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking shuffle v0.1.0 (/opt/rustwide/workdir/shuffle)
[INFO] [stderr]     Checking top_trumps v0.1.0 (/opt/rustwide/workdir/top_trumps)
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]  --> top_trumps/src/lib.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     name: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `fields`
[INFO] [stdout]  --> top_trumps/src/lib.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fields: HashMap<TopTrumpCategory, u32>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `shuffle`
[INFO] [stdout]   --> shuffle/src/lib.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn shuffle<T, R>(values: &mut T, mut rng: R)
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> shuffle/src/lib.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |         let mut rng = rand::thread_rng();
[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] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.30s
[INFO] running `Command { std: "docker" "inspect" "516455c5bbc40fe7002ccb2e46362b2444bac5bddf0bad54dca8073478f0b79a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "516455c5bbc40fe7002ccb2e46362b2444bac5bddf0bad54dca8073478f0b79a", kill_on_drop: false }`
[INFO] [stdout] 516455c5bbc40fe7002ccb2e46362b2444bac5bddf0bad54dca8073478f0b79a