[INFO] fetching crate loopdev 0.4.0...
[INFO] checking loopdev-0.4.0 against master#249cb84316401daf040832cdbb8a45e0f5ab6af8 for pr-138438
[INFO] extracting crate loopdev 0.4.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate loopdev 0.4.0 on toolchain 249cb84316401daf040832cdbb8a45e0f5ab6af8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+249cb84316401daf040832cdbb8a45e0f5ab6af8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate loopdev 0.4.0
[INFO] finished tweaking crates.io crate loopdev 0.4.0
[INFO] tweaked toml for crates.io crate loopdev 0.4.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+249cb84316401daf040832cdbb8a45e0f5ab6af8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 55 packages to latest compatible versions
[INFO] [stderr]       Adding bindgen v0.59.2 (available: v0.71.1)
[INFO] [stderr]       Adding errno v0.2.8 (available: v0.3.10)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+249cb84316401daf040832cdbb8a45e0f5ab6af8" "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-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+249cb84316401daf040832cdbb8a45e0f5ab6af8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f2808fdfd76c3b7a86e9eb53bfb127d008c35c0acc463f85aebe3c323fc1221
[INFO] running `Command { std: "docker" "start" "-a" "5f2808fdfd76c3b7a86e9eb53bfb127d008c35c0acc463f85aebe3c323fc1221", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f2808fdfd76c3b7a86e9eb53bfb127d008c35c0acc463f85aebe3c323fc1221", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f2808fdfd76c3b7a86e9eb53bfb127d008c35c0acc463f85aebe3c323fc1221", kill_on_drop: false }`
[INFO] [stdout] 5f2808fdfd76c3b7a86e9eb53bfb127d008c35c0acc463f85aebe3c323fc1221
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+249cb84316401daf040832cdbb8a45e0f5ab6af8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3a3ea3e7750fa7ca0ca5a6bc3047c1b528552d5718425d7cbd4c819fd2874074
[INFO] running `Command { std: "docker" "start" "-a" "3a3ea3e7750fa7ca0ca5a6bc3047c1b528552d5718425d7cbd4c819fd2874074", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling glob v0.3.2
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling bindgen v0.59.2
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling libloading v0.8.6
[INFO] [stderr]    Compiling getrandom v0.3.1
[INFO] [stderr]    Compiling rustix v1.0.2
[INFO] [stderr]     Checking bitflags v2.9.0
[INFO] [stderr]     Checking linux-raw-sys v0.9.3
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]     Checking fastrand v2.3.0
[INFO] [stderr]     Checking once_cell v1.21.1
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]    Compiling clang-sys v1.8.1
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]     Checking errno v0.2.8
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]     Checking tempfile v3.19.0
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling loopdev v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/lib.rs:247:22
[INFO] [stdout]     |
[INFO] [stdout] 247 |             .map(|m| unsafe { libc::major(m.rdev()) as u32 })
[INFO] [stdout]     |                      ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/lib.rs:254:22
[INFO] [stdout]     |
[INFO] [stdout] 254 |             .map(|m| unsafe { libc::minor(m.rdev()) as u32 })
[INFO] [stdout]     |                      ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/lib.rs:247:22
[INFO] [stdout]     |
[INFO] [stdout] 247 |             .map(|m| unsafe { libc::major(m.rdev()) as u32 })
[INFO] [stdout]     |                      ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/lib.rs:254:22
[INFO] [stdout]     |
[INFO] [stdout] 254 |             .map(|m| unsafe { libc::minor(m.rdev()) as u32 })
[INFO] [stdout]     |                      ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.63s
[INFO] running `Command { std: "docker" "inspect" "3a3ea3e7750fa7ca0ca5a6bc3047c1b528552d5718425d7cbd4c819fd2874074", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a3ea3e7750fa7ca0ca5a6bc3047c1b528552d5718425d7cbd4c819fd2874074", kill_on_drop: false }`
[INFO] [stdout] 3a3ea3e7750fa7ca0ca5a6bc3047c1b528552d5718425d7cbd4c819fd2874074