[INFO] fetching crate narrow 0.15.1...
[INFO] checking narrow-0.15.1 against master#eeb94be79adc9df7a09ad0b2421f16e60e6d932c for pr-152971
[INFO] extracting crate narrow 0.15.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate narrow 0.15.1
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate narrow 0.15.1
[INFO] tweaked toml for crates.io crate narrow 0.15.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate narrow 0.15.1 on toolchain eeb94be79adc9df7a09ad0b2421f16e60e6d932c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eeb94be79adc9df7a09ad0b2421f16e60e6d932c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate narrow 0.15.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eeb94be79adc9df7a09ad0b2421f16e60e6d932c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded twox-hash v2.1.0
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+eeb94be79adc9df7a09ad0b2421f16e60e6d932c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3479590e31e9ffca0cb9590b5fd8c2ebee1f0e50716d37bff3b12e06790717ab
[INFO] running `Command { std: "docker" "start" "-a" "3479590e31e9ffca0cb9590b5fd8c2ebee1f0e50716d37bff3b12e06790717ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3479590e31e9ffca0cb9590b5fd8c2ebee1f0e50716d37bff3b12e06790717ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3479590e31e9ffca0cb9590b5fd8c2ebee1f0e50716d37bff3b12e06790717ab", kill_on_drop: false }`
[INFO] [stdout] 3479590e31e9ffca0cb9590b5fd8c2ebee1f0e50716d37bff3b12e06790717ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+eeb94be79adc9df7a09ad0b2421f16e60e6d932c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da534f59eff2d25ac059f23eaa50a9206f52113f80862157267fa110f201d782
[INFO] running `Command { std: "docker" "start" "-a" "da534f59eff2d25ac059f23eaa50a9206f52113f80862157267fa110f201d782", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling num-traits v0.2.19
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[INFO] [stderr]    Compiling syn v2.0.109
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[INFO] [stderr]     Checking narrow v0.15.1 (/opt/rustwide/workdir)
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[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.225
[INFO] [stderr]    Compiling strum_macros v0.26.4
[INFO] [stderr]     Checking rand_core v0.9.0
[INFO] [stderr]     Checking arrow-array v57.0.0
[INFO] [stderr]     Checking rand v0.9.2
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[INFO] [stderr]     Checking arrow-select v57.0.0
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[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/buffer.rs:392:19
[INFO] [stdout]     |
[INFO] [stdout] 392 |         slice_mut.as_mut_slice()[0] = 1234;
[INFO] [stdout]     |                   ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `buffer::BufferMut::as_mut_slice(...)` to keep using the current method
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] help: add `#![feature(str_as_str)]` to the crate attributes to enable `core::slice::<impl [T]>::as_mut_slice`
[INFO] [stdout]    --> src/lib.rs:62:1
[INFO] [stdout]     |
[INFO] [stdout]  62 + #![feature(str_as_str)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/buffer.rs:393:19
[INFO] [stdout]     |
[INFO] [stdout] 393 |         slice_mut.as_mut_slice()[1] = 4321;
[INFO] [stdout]     |                   ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `buffer::BufferMut::as_mut_slice(...)` to keep using the current method
[INFO] [stdout] help: add `#![feature(str_as_str)]` to the crate attributes to enable `core::slice::<impl [T]>::as_mut_slice`
[INFO] [stdout]    --> src/lib.rs:62:1
[INFO] [stdout]     |
[INFO] [stdout]  62 + #![feature(str_as_str)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/buffer.rs:403:25
[INFO] [stdout]     |
[INFO] [stdout] 403 |         slice_array_mut.as_mut_slice()[0] = 0;
[INFO] [stdout]     |                         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `buffer::BufferMut::as_mut_slice(...)` to keep using the current method
[INFO] [stdout] help: add `#![feature(str_as_str)]` to the crate attributes to enable `core::slice::<impl [T]>::as_mut_slice`
[INFO] [stdout]    --> src/lib.rs:62:1
[INFO] [stdout]     |
[INFO] [stdout]  62 + #![feature(str_as_str)]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 54.96s
[INFO] running `Command { std: "docker" "inspect" "da534f59eff2d25ac059f23eaa50a9206f52113f80862157267fa110f201d782", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da534f59eff2d25ac059f23eaa50a9206f52113f80862157267fa110f201d782", kill_on_drop: false }`
[INFO] [stdout] da534f59eff2d25ac059f23eaa50a9206f52113f80862157267fa110f201d782
