[INFO] cloning repository https://github.com/lizzieshinkicker/stupidbingo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lizzieshinkicker/stupidbingo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flizzieshinkicker%2Fstupidbingo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flizzieshinkicker%2Fstupidbingo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4386dc345a967bc065c29a50c313cf4fc52b7462
[INFO] checking lizzieshinkicker/stupidbingo 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%2Flizzieshinkicker%2Fstupidbingo" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lizzieshinkicker/stupidbingo
[INFO] finished tweaking git repo https://github.com/lizzieshinkicker/stupidbingo
[INFO] tweaked toml for git repo https://github.com/lizzieshinkicker/stupidbingo written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lizzieshinkicker/stupidbingo 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/lizzieshinkicker/stupidbingo 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] [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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 4026a3048b3eb0974fc050ac79ab6d5557cd739f9d89058625213c473a25f886
[INFO] running `Command { std: "docker" "start" "-a" "4026a3048b3eb0974fc050ac79ab6d5557cd739f9d89058625213c473a25f886", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4026a3048b3eb0974fc050ac79ab6d5557cd739f9d89058625213c473a25f886", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4026a3048b3eb0974fc050ac79ab6d5557cd739f9d89058625213c473a25f886", kill_on_drop: false }`
[INFO] [stdout] 4026a3048b3eb0974fc050ac79ab6d5557cd739f9d89058625213c473a25f886
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 526a6494f4741f502ec82cf0b1a09a2a5bb40c6b999d33f30eb50bbab6e51552
[INFO] running `Command { std: "docker" "start" "-a" "526a6494f4741f502ec82cf0b1a09a2a5bb40c6b999d33f30eb50bbab6e51552", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling libc v0.2.158
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]    Compiling syn v2.0.75
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking stupidbingo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]    --> src/main.rs:179:47
[INFO] [stdout]     |
[INFO] [stdout] 179 |     win_after.iter().for_each(|x| sum = sum + u64::try_from(*x).unwrap() );
[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<u64, Infallible>
[INFO] [stdout]    --> src/main.rs:219:58
[INFO] [stdout]     |
[INFO] [stdout] 219 |     ball_histogram.iter().for_each(|x| bh_sum = bh_sum + u64::try_from(*x).unwrap() );
[INFO] [stdout]     |                                                          ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<u64, Infallible>
[INFO] [stdout]    --> src/main.rs:179:47
[INFO] [stdout]     |
[INFO] [stdout] 179 |     win_after.iter().for_each(|x| sum = sum + u64::try_from(*x).unwrap() );
[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<u64, Infallible>
[INFO] [stdout]    --> src/main.rs:219:58
[INFO] [stdout]     |
[INFO] [stdout] 219 |     ball_histogram.iter().for_each(|x| bh_sum = bh_sum + u64::try_from(*x).unwrap() );
[INFO] [stdout]     |                                                          ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `stupidbingo` (bin "stupidbingo" test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `stupidbingo` (bin "stupidbingo") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "526a6494f4741f502ec82cf0b1a09a2a5bb40c6b999d33f30eb50bbab6e51552", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "526a6494f4741f502ec82cf0b1a09a2a5bb40c6b999d33f30eb50bbab6e51552", kill_on_drop: false }`
[INFO] [stdout] 526a6494f4741f502ec82cf0b1a09a2a5bb40c6b999d33f30eb50bbab6e51552