[INFO] fetching crate krata-loopdev 0.0.21...
[INFO] testing krata-loopdev-0.0.21 against 1.90.0 for beta-1.91-3
[INFO] extracting crate krata-loopdev 0.0.21 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate krata-loopdev 0.0.21
[INFO] finished tweaking crates.io crate krata-loopdev 0.0.21
[INFO] tweaked toml for crates.io crate krata-loopdev 0.0.21 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate krata-loopdev 0.0.21 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 96ad97b894cdfbbb7af18e13b310d27e641de38a7a639c64731b3c97cff0d3e0
[INFO] running `Command { std: "docker" "start" "-a" "96ad97b894cdfbbb7af18e13b310d27e641de38a7a639c64731b3c97cff0d3e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96ad97b894cdfbbb7af18e13b310d27e641de38a7a639c64731b3c97cff0d3e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96ad97b894cdfbbb7af18e13b310d27e641de38a7a639c64731b3c97cff0d3e0", kill_on_drop: false }`
[INFO] [stdout] 96ad97b894cdfbbb7af18e13b310d27e641de38a7a639c64731b3c97cff0d3e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6b32d1b5c3e1808cc010039c8ca0337a48467ec563f3ba769f7a408155d0093
[INFO] running `Command { std: "docker" "start" "-a" "b6b32d1b5c3e1808cc010039c8ca0337a48467ec563f3ba769f7a408155d0093", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]    Compiling krata-loopdev v0.0.21 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/lib.rs:225:22
[INFO] [stdout]     |
[INFO] [stdout] 225 |             .map(|m| unsafe { libc::major(m.rdev()) })
[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:232:22
[INFO] [stdout]     |
[INFO] [stdout] 232 |             .map(|m| unsafe { libc::minor(m.rdev()) })
[INFO] [stdout]     |                      ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.57s
[INFO] running `Command { std: "docker" "inspect" "b6b32d1b5c3e1808cc010039c8ca0337a48467ec563f3ba769f7a408155d0093", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6b32d1b5c3e1808cc010039c8ca0337a48467ec563f3ba769f7a408155d0093", kill_on_drop: false }`
[INFO] [stdout] b6b32d1b5c3e1808cc010039c8ca0337a48467ec563f3ba769f7a408155d0093
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 354241c3bcd455deee709a27a0eebde7f3618f4695075b4205475ddf0bee6388
[INFO] running `Command { std: "docker" "start" "-a" "354241c3bcd455deee709a27a0eebde7f3618f4695075b4205475ddf0bee6388", kill_on_drop: false }`
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/lib.rs:225:22
[INFO] [stdout]     |
[INFO] [stdout] 225 |             .map(|m| unsafe { libc::major(m.rdev()) })
[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:232:22
[INFO] [stdout]     |
[INFO] [stdout] 232 |             .map(|m| unsafe { libc::minor(m.rdev()) })
[INFO] [stdout]     |                      ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling krata-loopdev v0.0.21 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/lib.rs:225:22
[INFO] [stdout]     |
[INFO] [stdout] 225 |             .map(|m| unsafe { libc::major(m.rdev()) })
[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:232:22
[INFO] [stdout]     |
[INFO] [stdout] 232 |             .map(|m| unsafe { libc::minor(m.rdev()) })
[INFO] [stdout]     |                      ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "354241c3bcd455deee709a27a0eebde7f3618f4695075b4205475ddf0bee6388", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "354241c3bcd455deee709a27a0eebde7f3618f4695075b4205475ddf0bee6388", kill_on_drop: false }`
[INFO] [stdout] 354241c3bcd455deee709a27a0eebde7f3618f4695075b4205475ddf0bee6388
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3a706430ec4ff1b9124cd4e3da5a7da43aaf931a39a50f240f31087a396bd9c6
[INFO] running `Command { std: "docker" "start" "-a" "3a706430ec4ff1b9124cd4e3da5a7da43aaf931a39a50f240f31087a396bd9c6", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/lib.rs:225:22
[INFO] [stderr]     |
[INFO] [stderr] 225 |             .map(|m| unsafe { libc::major(m.rdev()) })
[INFO] [stderr]     |                      ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]    --> src/lib.rs:232:22
[INFO] [stderr]     |
[INFO] [stderr] 232 |             .map(|m| unsafe { libc::minor(m.rdev()) })
[INFO] [stderr]     |                      ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: `krata-loopdev` (lib) generated 2 warnings
[INFO] [stderr] warning: `krata-loopdev` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/krataloopdev-217847c2fbd2a6d0)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests krataloopdev
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - LoopControl::next_free (line 69) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.13s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3a706430ec4ff1b9124cd4e3da5a7da43aaf931a39a50f240f31087a396bd9c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a706430ec4ff1b9124cd4e3da5a7da43aaf931a39a50f240f31087a396bd9c6", kill_on_drop: false }`
[INFO] [stdout] 3a706430ec4ff1b9124cd4e3da5a7da43aaf931a39a50f240f31087a396bd9c6