[INFO] fetching crate crockford-uuid 0.1.2...
[INFO] checking crockford-uuid-0.1.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate crockford-uuid 0.1.2 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate crockford-uuid 0.1.2
[INFO] finished tweaking crates.io crate crockford-uuid 0.1.2
[INFO] tweaked toml for crates.io crate crockford-uuid 0.1.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate crockford-uuid 0.1.2 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 31 packages to latest compatible versions
[INFO] [stderr]       Adding base32 v0.4.0 (available: v0.5.1)
[INFO] [stderr]       Adding ring v0.16.20 (available: v0.17.14)
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] e688a742ebcf561f575b7cdcc52170e73ec1c82d27ce2e97d2936a426fe33dd9
[INFO] running `Command { std: "docker" "start" "-a" "e688a742ebcf561f575b7cdcc52170e73ec1c82d27ce2e97d2936a426fe33dd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e688a742ebcf561f575b7cdcc52170e73ec1c82d27ce2e97d2936a426fe33dd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e688a742ebcf561f575b7cdcc52170e73ec1c82d27ce2e97d2936a426fe33dd9", kill_on_drop: false }`
[INFO] [stdout] e688a742ebcf561f575b7cdcc52170e73ec1c82d27ce2e97d2936a426fe33dd9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] d697c81da4e55a1c55702daca3aa098ce0cd0697fca8b67b4183ea120f9b8130
[INFO] running `Command { std: "docker" "start" "-a" "d697c81da4e55a1c55702daca3aa098ce0cd0697fca8b67b4183ea120f9b8130", kill_on_drop: false }`
[INFO] [stderr]    Compiling find-msvc-tools v0.1.4
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking base32 v0.4.0
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]    Compiling cc v1.2.45
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking crockford-uuid v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<BytesMut, Infallible>
[INFO] [stdout]   --> src/lib.rs:61:25
[INFO] [stdout]    |
[INFO] [stdout] 61 |             let bytes = BytesMut::try_from(&value[..])
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `crockford-uuid` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<BytesMut, Infallible>
[INFO] [stdout]   --> src/lib.rs:61:25
[INFO] [stdout]    |
[INFO] [stdout] 61 |             let bytes = BytesMut::try_from(&value[..])
[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<BigUint, Infallible>
[INFO] [stdout]    --> src/lib.rs:253:34
[INFO] [stdout]     |
[INFO] [stdout] 253 |         let int_value: BigUint = Uuid::try_from(str_uuid()).unwrap().try_into().unwrap();
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `crockford-uuid` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "d697c81da4e55a1c55702daca3aa098ce0cd0697fca8b67b4183ea120f9b8130", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d697c81da4e55a1c55702daca3aa098ce0cd0697fca8b67b4183ea120f9b8130", kill_on_drop: false }`
[INFO] [stdout] d697c81da4e55a1c55702daca3aa098ce0cd0697fca8b67b4183ea120f9b8130