[INFO] fetching crate luwen-ref 0.3.1...
[INFO] checking luwen-ref-0.3.1 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate luwen-ref 0.3.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate luwen-ref 0.3.1 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate luwen-ref 0.3.1
[INFO] finished tweaking crates.io crate luwen-ref 0.3.1
[INFO] tweaked toml for crates.io crate luwen-ref 0.3.1 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 60 packages to latest compatible versions
[INFO] [stderr]       Adding bitfield-struct v0.4.4 (latest: v0.8.0)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.6.0)
[INFO] [stderr]       Adding encode_unicode v0.3.6 (latest: v1.0.0)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.1.0)
[INFO] [stderr]       Adding memmap2 v0.7.1 (latest: v0.9.4)
[INFO] [stderr]       Adding memoffset v0.7.1 (latest: v0.9.1)
[INFO] [stderr]       Adding nix v0.26.4 (latest: v0.29.0)
[INFO] [stderr]       Adding windows-sys v0.52.0 (latest: v0.59.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memmap2 v0.7.1
[INFO] [stderr]   Downloaded rust-embed-utils v8.5.0
[INFO] [stderr]   Downloaded rust-embed-impl v8.5.0
[INFO] [stderr]   Downloaded luwen-core v0.1.0
[INFO] [stderr]   Downloaded bitfield-struct v0.4.4
[INFO] [stderr]   Downloaded ttkmd-if v0.1.0
[INFO] [stderr]   Downloaded luwen-if v0.4.4
[INFO] [stderr]   Downloaded portable-atomic v1.7.0
[INFO] [stderr]   Downloaded rust-embed v8.5.0
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 210ec5f20f08d4e3f3263771028eb662e0f9ae03e4f87e731507f788aa6febf9
[INFO] running `Command { std: "docker" "start" "-a" "210ec5f20f08d4e3f3263771028eb662e0f9ae03e4f87e731507f788aa6febf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "210ec5f20f08d4e3f3263771028eb662e0f9ae03e4f87e731507f788aa6febf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "210ec5f20f08d4e3f3263771028eb662e0f9ae03e4f87e731507f788aa6febf9", kill_on_drop: false }`
[INFO] [stdout] 210ec5f20f08d4e3f3263771028eb662e0f9ae03e4f87e731507f788aa6febf9
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5aaf31213bd0085b1e1c236dac6af4c0264f2bf56543ef0097edd393687e7ac5
[INFO] running `Command { std: "docker" "start" "-a" "5aaf31213bd0085b1e1c236dac6af4c0264f2bf56543ef0097edd393687e7ac5", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling cpufeatures v0.2.13
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling portable-atomic v1.7.0
[INFO] [stderr]     Checking number_prefix v0.4.0
[INFO] [stderr]     Checking memmap2 v0.7.1
[INFO] [stderr]     Checking console v0.15.8
[INFO] [stderr]    Compiling serde_derive v1.0.209
[INFO] [stderr]    Compiling bitfield-struct v0.4.4
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking luwen-core v0.1.0
[INFO] [stderr]     Checking nix v0.26.4
[INFO] [stderr]     Checking rust-embed-utils v8.5.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking indicatif v0.17.8
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling rust-embed-impl v8.5.0
[INFO] [stderr]     Checking serde v1.0.209
[INFO] [stderr]     Checking rust-embed v8.5.0
[INFO] [stderr]     Checking ttkmd-if v0.1.0
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking luwen-if v0.4.4
[INFO] [stderr]     Checking luwen-ref v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/detect.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 154 |         Err(InitError::CallbackError(err)) => {
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ matches no values because `Infallible` is uninhabited
[INFO] [stdout]     |
[INFO] [stdout]     = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/detect.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 154 |         Err(InitError::CallbackError(err)) => {
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ matches no values because `Infallible` is uninhabited
[INFO] [stdout]     |
[INFO] [stdout]     = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.72s
[INFO] running `Command { std: "docker" "inspect" "5aaf31213bd0085b1e1c236dac6af4c0264f2bf56543ef0097edd393687e7ac5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5aaf31213bd0085b1e1c236dac6af4c0264f2bf56543ef0097edd393687e7ac5", kill_on_drop: false }`
[INFO] [stdout] 5aaf31213bd0085b1e1c236dac6af4c0264f2bf56543ef0097edd393687e7ac5