[INFO] fetching crate utf 0.1.6...
[INFO] checking utf-0.1.6 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] extracting crate utf 0.1.6 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate utf 0.1.6 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate utf 0.1.6
[INFO] finished tweaking crates.io crate utf 0.1.6
[INFO] tweaked toml for crates.io crate utf 0.1.6 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 392172c5b0f134aa14b067fda737a7e60f3d6b493f43c90ff5a4c6c9c4ed7389
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "392172c5b0f134aa14b067fda737a7e60f3d6b493f43c90ff5a4c6c9c4ed7389", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "392172c5b0f134aa14b067fda737a7e60f3d6b493f43c90ff5a4c6c9c4ed7389", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "392172c5b0f134aa14b067fda737a7e60f3d6b493f43c90ff5a4c6c9c4ed7389", kill_on_drop: false }`
[INFO] [stdout] 392172c5b0f134aa14b067fda737a7e60f3d6b493f43c90ff5a4c6c9c4ed7389
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2446f461d4f7befbda6a6dffbd0b7a307bb15a1eb2e9170b4dcd919ba26f5a7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b2446f461d4f7befbda6a6dffbd0b7a307bb15a1eb2e9170b4dcd919ba26f5a7", kill_on_drop: false }`
[INFO] [stderr]     Checking utf v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: static variable `ls` should have an upper case name
[INFO] [stdout]   --> src/lib.rs:74:16
[INFO] [stdout]    |
[INFO] [stdout] 74 |         static ls: [Fin7; 33] = [F0, F6, F6, F6, F6, F6, F5, F5,
[INFO] [stdout]    |                ^^ help: convert the identifier to upper case: `LS`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stdout]    --> src/lib.rs:118:60
[INFO] [stdout]     |
[INFO] [stdout] 118 |                        ("�A", &[0xFFu8, 0x41u8] as &[u8])].into_iter() {
[INFO] [stdout]     |                                                            ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `ls` should have an upper case name
[INFO] [stdout]   --> src/lib.rs:74:16
[INFO] [stdout]    |
[INFO] [stdout] 74 |         static ls: [Fin7; 33] = [F0, F6, F6, F6, F6, F6, F5, F5,
[INFO] [stdout]    |                ^^ help: convert the identifier to upper case: `LS`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "b2446f461d4f7befbda6a6dffbd0b7a307bb15a1eb2e9170b4dcd919ba26f5a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2446f461d4f7befbda6a6dffbd0b7a307bb15a1eb2e9170b4dcd919ba26f5a7", kill_on_drop: false }`
[INFO] [stdout] b2446f461d4f7befbda6a6dffbd0b7a307bb15a1eb2e9170b4dcd919ba26f5a7