[INFO] fetching crate vat-viewer 0.3.1...
[INFO] checking vat-viewer-0.3.1 against 52995a223f2919dd3e2e427231db90a257350ded for pr-129249-4
[INFO] extracting crate vat-viewer 0.3.1 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate vat-viewer 0.3.1
[INFO] finished tweaking crates.io crate vat-viewer 0.3.1
[INFO] tweaked toml for crates.io crate vat-viewer 0.3.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate vat-viewer 0.3.1 on toolchain 52995a223f2919dd3e2e427231db90a257350ded
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate vat-viewer 0.3.1 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" "+52995a223f2919dd3e2e427231db90a257350ded" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 0bfb57681fef744192a12525368fb4d3354ab78b8323dfb1bbeaec910a43223c
[INFO] running `Command { std: "docker" "start" "0bfb57681fef744192a12525368fb4d3354ab78b8323dfb1bbeaec910a43223c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0bfb57681fef744192a12525368fb4d3354ab78b8323dfb1bbeaec910a43223c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "0bfb57681fef744192a12525368fb4d3354ab78b8323dfb1bbeaec910a43223c" "/opt/rustwide/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0bfb57681fef744192a12525368fb4d3354ab78b8323dfb1bbeaec910a43223c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "0bfb57681fef744192a12525368fb4d3354ab78b8323dfb1bbeaec910a43223c" "/opt/rustwide/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/engines/syntax.rs:1396:9
[INFO] [stdout]      |
[INFO] [stdout] 1396 |     let mut flush = |buf: &mut String, spans: &mut Vec<Span<'static>>| {
[INFO] [stdout]      |         ----^^^^^
[INFO] [stdout]      |         |
[INFO] [stdout]      |         help: remove this `mut`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/engines/syntax.rs:1396:9
[INFO] [stdout]      |
[INFO] [stdout] 1396 |     let mut flush = |buf: &mut String, spans: &mut Vec<Span<'static>>| {
[INFO] [stdout]      |         ----^^^^^
[INFO] [stdout]      |         |
[INFO] [stdout]      |         help: remove this `mut`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]    --> src/engines/table.rs:815:30
[INFO] [stdout]     |
[INFO] [stdout] 815 |         let s1 = Series::new("id".into(), &[1i64, 2, 3]);
[INFO] [stdout]     |                              ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 815 -         let s1 = Series::new("id".into(), &[1i64, 2, 3]);
[INFO] [stdout] 815 +         let s1 = Series::new("id", &[1i64, 2, 3]);
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 815 -         let s1 = Series::new("id".into(), &[1i64, 2, 3]);
[INFO] [stdout] 815 +         let s1 = Series::new(<&str as Into<_>>::into("id"), &[1i64, 2, 3]);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]    --> src/engines/table.rs:816:30
[INFO] [stdout]     |
[INFO] [stdout] 816 |         let s2 = Series::new("a_very_long_column_name_here".into(), &["short", "x", "y"]);
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 816 -         let s2 = Series::new("a_very_long_column_name_here".into(), &["short", "x", "y"]);
[INFO] [stdout] 816 +         let s2 = Series::new("a_very_long_column_name_here", &["short", "x", "y"]);
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 816 -         let s2 = Series::new("a_very_long_column_name_here".into(), &["short", "x", "y"]);
[INFO] [stdout] 816 +         let s2 = Series::new(<&str as Into<_>>::into("a_very_long_column_name_here"), &["short", "x", "y"]);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]    --> src/engines/table.rs:828:30
[INFO] [stdout]     |
[INFO] [stdout] 828 |         let s1 = Series::new("x".into(), &[long_val.as_str()]);
[INFO] [stdout]     |                              ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 828 -         let s1 = Series::new("x".into(), &[long_val.as_str()]);
[INFO] [stdout] 828 +         let s1 = Series::new("x", &[long_val.as_str()]);
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 828 -         let s1 = Series::new("x".into(), &[long_val.as_str()]);
[INFO] [stdout] 828 +         let s1 = Series::new(<&str as Into<_>>::into("x"), &[long_val.as_str()]);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `vat-viewer` (bin "vat" test) due to 3 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "0bfb57681fef744192a12525368fb4d3354ab78b8323dfb1bbeaec910a43223c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bfb57681fef744192a12525368fb4d3354ab78b8323dfb1bbeaec910a43223c", kill_on_drop: false }`
[INFO] [stdout] 0bfb57681fef744192a12525368fb4d3354ab78b8323dfb1bbeaec910a43223c
