[INFO] fetching crate tuple-conv 1.0.1...
[INFO] checking tuple-conv-1.0.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate tuple-conv 1.0.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate tuple-conv 1.0.1 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tuple-conv 1.0.1
[INFO] finished tweaking crates.io crate tuple-conv 1.0.1
[INFO] tweaked toml for crates.io crate tuple-conv 1.0.1 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "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]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 61 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding clap v2.34.0 (latest: v4.5.4)
[INFO] [stderr]       Adding criterion v0.3.6 (latest: v0.5.1)
[INFO] [stderr]       Adding criterion-plot v0.4.5 (latest: v0.5.0)
[INFO] [stderr]       Adding half v1.8.3 (latest: v2.4.0)
[INFO] [stderr]       Adding hermit-abi v0.1.19 (latest: v0.3.9)
[INFO] [stderr]       Adding itertools v0.10.5 (latest: v0.12.1)
[INFO] [stderr]       Adding textwrap v0.11.0 (latest: v0.16.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 22f866cb69255b6ea3d9fc842e9f7726dd4bc93aecccb8385d1ac2018a831ce6
[INFO] running `Command { std: "docker" "start" "-a" "22f866cb69255b6ea3d9fc842e9f7726dd4bc93aecccb8385d1ac2018a831ce6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "22f866cb69255b6ea3d9fc842e9f7726dd4bc93aecccb8385d1ac2018a831ce6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22f866cb69255b6ea3d9fc842e9f7726dd4bc93aecccb8385d1ac2018a831ce6", kill_on_drop: false }`
[INFO] [stdout] 22f866cb69255b6ea3d9fc842e9f7726dd4bc93aecccb8385d1ac2018a831ce6
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd3b8698c9a45173b32880d1dae011bd5e8741d09bf82ecdc314c50a182a6af7
[INFO] running `Command { std: "docker" "start" "-a" "dd3b8698c9a45173b32880d1dae011bd5e8741d09bf82ecdc314c50a182a6af7", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking plotters v0.3.5
[INFO] [stderr]     Checking tuple-conv v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stdout] warning: unnecessary allocation, use `&` instead
[INFO] [stdout]    --> src/lib.rs:338:22
[INFO] [stdout]     |
[INFO] [stdout] 338 |         assert!(b == Box::new([1]));
[INFO] [stdout]     |                      ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_allocation)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary allocation, use `&` instead
[INFO] [stdout]    --> src/lib.rs:342:22
[INFO] [stdout]     |
[INFO] [stdout] 342 |         assert!(b == Box::new([3, 2, 1]));
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary allocation, use `&` instead
[INFO] [stdout]    --> src/lib.rs:346:22
[INFO] [stdout]     |
[INFO] [stdout] 346 |         assert!(b == Box::new(long!(slice_reversed)));
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary allocation, use `&` instead
[INFO] [stdout]    --> src/lib.rs:353:22
[INFO] [stdout]     |
[INFO] [stdout] 353 |         assert!(b == Box::new([1, 2, 3]));
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.44s
[INFO] running `Command { std: "docker" "inspect" "dd3b8698c9a45173b32880d1dae011bd5e8741d09bf82ecdc314c50a182a6af7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd3b8698c9a45173b32880d1dae011bd5e8741d09bf82ecdc314c50a182a6af7", kill_on_drop: false }`
[INFO] [stdout] dd3b8698c9a45173b32880d1dae011bd5e8741d09bf82ecdc314c50a182a6af7