[INFO] fetching crate random-fast-rng 0.1.1...
[INFO] checking random-fast-rng-0.1.1 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate random-fast-rng 0.1.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate random-fast-rng 0.1.1
[INFO] finished tweaking crates.io crate random-fast-rng 0.1.1
[INFO] tweaked toml for crates.io crate random-fast-rng 0.1.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate random-fast-rng 0.1.1 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 2 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e917db8e02b70dfc51f10ee2c5d3427fb944f6adb0713a955ec6a04c42dc2e72
[INFO] running `Command { std: "docker" "start" "-a" "e917db8e02b70dfc51f10ee2c5d3427fb944f6adb0713a955ec6a04c42dc2e72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e917db8e02b70dfc51f10ee2c5d3427fb944f6adb0713a955ec6a04c42dc2e72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e917db8e02b70dfc51f10ee2c5d3427fb944f6adb0713a955ec6a04c42dc2e72", kill_on_drop: false }`
[INFO] [stdout] e917db8e02b70dfc51f10ee2c5d3427fb944f6adb0713a955ec6a04c42dc2e72
[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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b5592ba708435580118781312ff1e07913277ac71fd414fb53ad1318050de2e
[INFO] running `Command { std: "docker" "start" "-a" "0b5592ba708435580118781312ff1e07913277ac71fd414fb53ad1318050de2e", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling random-trait v0.1.1
[INFO] [stderr]     Checking random-fast-rng v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/lib.rs:122:42
[INFO] [stdout]     |
[INFO] [stdout] 122 |             let rand: [u8; 4] = unsafe { mem::transmute(self.gen_u32()) };
[INFO] [stdout]     |                                          --------------^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          help: replace this with: `u32::to_ne_bytes`
[INFO] [stdout]     |
[INFO] [stdout]     = help: there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order
[INFO] [stdout]     = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unnecessary transmute
[INFO] [stdout]    --> src/lib.rs:122:42
[INFO] [stdout]     |
[INFO] [stdout] 122 |             let rand: [u8; 4] = unsafe { mem::transmute(self.gen_u32()) };
[INFO] [stdout]     |                                          --------------^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                          |
[INFO] [stdout]     |                                          help: replace this with: `u32::to_ne_bytes`
[INFO] [stdout]     |
[INFO] [stdout]     = help: there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:3:24
[INFO] [stdout]     |
[INFO] [stdout]   3 | #![cfg_attr(test, deny(warnings))]
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(unnecessary_transmutes)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `random-fast-rng` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "0b5592ba708435580118781312ff1e07913277ac71fd414fb53ad1318050de2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b5592ba708435580118781312ff1e07913277ac71fd414fb53ad1318050de2e", kill_on_drop: false }`
[INFO] [stdout] 0b5592ba708435580118781312ff1e07913277ac71fd414fb53ad1318050de2e