[INFO] fetching crate string_art 0.1.0-alpha.1...
[INFO] testing string_art-0.1.0-alpha.1 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate string_art 0.1.0-alpha.1 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate string_art 0.1.0-alpha.1
[INFO] finished tweaking crates.io crate string_art 0.1.0-alpha.1
[INFO] tweaked toml for crates.io crate string_art 0.1.0-alpha.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate string_art 0.1.0-alpha.1 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "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" "+caccb4d0368bd918ef6668af8e13834d07040417" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 140 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6ede83c6c3e4e087f5b703ff4d6dbab8fbf7be35c22d885156acf655383d0de5
[INFO] running `Command { std: "docker" "start" "-a" "6ede83c6c3e4e087f5b703ff4d6dbab8fbf7be35c22d885156acf655383d0de5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ede83c6c3e4e087f5b703ff4d6dbab8fbf7be35c22d885156acf655383d0de5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ede83c6c3e4e087f5b703ff4d6dbab8fbf7be35c22d885156acf655383d0de5", kill_on_drop: false }`
[INFO] [stdout] 6ede83c6c3e4e087f5b703ff4d6dbab8fbf7be35c22d885156acf655383d0de5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60665e7314b19466cc4988a6fcb2f358f9411caa1b11216749ade8a6f00b42ab
[INFO] running `Command { std: "docker" "start" "-a" "60665e7314b19466cc4988a6fcb2f358f9411caa1b11216749ade8a6f00b42ab", kill_on_drop: false }`
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[INFO] [stderr]    Compiling string_art v0.1.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]    --> src/algorithm.rs:286:17
[INFO] [stdout]     |
[INFO] [stdout] 286 |                 (*self.0).get_unchecked_mut(idx)
[INFO] [stdout]     |                 ^^------^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   this raw pointer has type `*mut [BakedSegment<S>]`
[INFO] [stdout]     |
[INFO] [stdout]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&mut [BakedSegment<S>]`
[INFO] [stdout]    --> src/algorithm.rs:286:17
[INFO] [stdout]     |
[INFO] [stdout] 286 |                 (*self.0).get_unchecked_mut(idx)
[INFO] [stdout]     |                 ^^^^^^^^^
[INFO] [stdout] note: method calls to `get_unchecked_mut` require a reference
[INFO] [stdout]    --> /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/slice/mod.rs:682:5
[INFO] [stdout]     = note: `#[deny(dangerous_implicit_autorefs)]` on by default
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 286 |                 (&mut (*self.0)).get_unchecked_mut(idx)
[INFO] [stdout]     |                 +++++          +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `string_art` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "60665e7314b19466cc4988a6fcb2f358f9411caa1b11216749ade8a6f00b42ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60665e7314b19466cc4988a6fcb2f358f9411caa1b11216749ade8a6f00b42ab", kill_on_drop: false }`
[INFO] [stdout] 60665e7314b19466cc4988a6fcb2f358f9411caa1b11216749ade8a6f00b42ab