[INFO] cloning repository https://github.com/Kayren/wardice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Kayren/wardice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKayren%2Fwardice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKayren%2Fwardice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dd508fded023a13006b6710c278566b01819a2a8
[INFO] checking Kayren/wardice against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKayren%2Fwardice" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Kayren/wardice on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Kayren/wardice
[INFO] finished tweaking git repo https://github.com/Kayren/wardice
[INFO] tweaked toml for git repo https://github.com/Kayren/wardice written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/Kayren/wardice already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "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 quote v0.6.6
[INFO] [stderr]   Downloaded syn v0.14.8
[INFO] [stderr]   Downloaded ryu v0.2.4
[INFO] [stderr]   Downloaded serde v1.0.72
[INFO] [stderr]   Downloaded serde_json v1.0.26
[INFO] [stderr]   Downloaded serde_derive v1.0.72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bd7e20166b3063e320f9f1d5c9c7fc1d3b2dcd8da17a8949b5b27930d9631303
[INFO] running `Command { std: "docker" "start" "-a" "bd7e20166b3063e320f9f1d5c9c7fc1d3b2dcd8da17a8949b5b27930d9631303", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd7e20166b3063e320f9f1d5c9c7fc1d3b2dcd8da17a8949b5b27930d9631303", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd7e20166b3063e320f9f1d5c9c7fc1d3b2dcd8da17a8949b5b27930d9631303", kill_on_drop: false }`
[INFO] [stdout] bd7e20166b3063e320f9f1d5c9c7fc1d3b2dcd8da17a8949b5b27930d9631303
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a475ccb1cb6c93f9e7f0cba9d565145fab174e0dd7d4061ad13f9fc4786251d
[INFO] running `Command { std: "docker" "start" "-a" "8a475ccb1cb6c93f9e7f0cba9d565145fab174e0dd7d4061ad13f9fc4786251d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.13
[INFO] [stderr]    Compiling ryu v0.2.4
[INFO] [stderr]    Compiling serde v1.0.72
[INFO] [stderr]     Checking rand_core v0.2.1
[INFO] [stderr]     Checking itoa v0.4.2
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]    Compiling quote v0.6.6
[INFO] [stderr]    Compiling syn v0.14.8
[INFO] [stderr]    Compiling serde_derive v1.0.72
[INFO] [stderr]     Checking serde_json v1.0.26
[INFO] [stderr]     Checking wardice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `collect` that must be used
[INFO] [stdout]    --> src/lib.rs:233:5
[INFO] [stdout]     |
[INFO] [stdout] 233 |     rolls.clone().into_iter().map(|r| reroll_dice(&mut rerolls, r)).collect::<()>();
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `collect` that must be used
[INFO] [stdout]    --> src/lib.rs:233:5
[INFO] [stdout]     |
[INFO] [stdout] 233 |     rolls.clone().into_iter().map(|r| reroll_dice(&mut rerolls, r)).collect::<()>();
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.33s
[INFO] running `Command { std: "docker" "inspect" "8a475ccb1cb6c93f9e7f0cba9d565145fab174e0dd7d4061ad13f9fc4786251d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a475ccb1cb6c93f9e7f0cba9d565145fab174e0dd7d4061ad13f9fc4786251d", kill_on_drop: false }`
[INFO] [stdout] 8a475ccb1cb6c93f9e7f0cba9d565145fab174e0dd7d4061ad13f9fc4786251d