[INFO] fetching crate pipe-chain 0.1.1...
[INFO] checking pipe-chain-0.1.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate pipe-chain 0.1.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate pipe-chain 0.1.1
[INFO] finished tweaking crates.io crate pipe-chain 0.1.1
[INFO] tweaked toml for crates.io crate pipe-chain 0.1.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pipe-chain 0.1.1 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 5 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 29797bef3eed102f5014014090eae5309b2257c72a2f7d298c8ca443b0b094b6
[INFO] running `Command { std: "docker" "start" "-a" "29797bef3eed102f5014014090eae5309b2257c72a2f7d298c8ca443b0b094b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "29797bef3eed102f5014014090eae5309b2257c72a2f7d298c8ca443b0b094b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29797bef3eed102f5014014090eae5309b2257c72a2f7d298c8ca443b0b094b6", kill_on_drop: false }`
[INFO] [stdout] 29797bef3eed102f5014014090eae5309b2257c72a2f7d298c8ca443b0b094b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7011b0588b78d91a84796e50daa575e973b4083c0923cf18eb903fbcf1ba6955
[INFO] running `Command { std: "docker" "start" "-a" "7011b0588b78d91a84796e50daa575e973b4083c0923cf18eb903fbcf1ba6955", kill_on_drop: false }`
[INFO] [stderr]     Checking tuplify v1.1.4
[INFO] [stderr]     Checking fatal-error v1.0.1
[INFO] [stderr]     Checking pipe-chain v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `round_char_boundary` has been stable since 1.91.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(round_char_boundary)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `round_char_boundary` has been stable since 1.91.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(round_char_boundary)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<impl Pipe<CharAtom<'_>, (Vec<<CharAtom<'_> as take::TakeAtom>::Atom>,), E2, <CharAtom<'_> as take::TakeAtom>::Container>, Infallible>
[INFO] [stdout]    --> src/str.rs:263:21
[INFO] [stdout]     |
[INFO] [stdout] 263 |     Ok(move |input| take_atom(qty).unwrap().apply(CharAtom::from(input)))
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<impl Pipe<GraphemeAtom<'_>, (Vec<<GraphemeAtom<'_> as take::TakeAtom>::Atom>,), E2, <GraphemeAtom<'_> as take::TakeAtom>::Container>, Infallible>
[INFO] [stdout]    --> src/str.rs:285:21
[INFO] [stdout]     |
[INFO] [stdout] 285 |     Ok(move |input| take_atom(qty).unwrap().apply(GraphemeAtom::from(input)))
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<impl Pipe<WordAtom<'_>, (Vec<<WordAtom<'_> as take::TakeAtom>::Atom>,), E2, <WordAtom<'_> as take::TakeAtom>::Container>, Infallible>
[INFO] [stdout]    --> src/str.rs:309:21
[INFO] [stdout]     |
[INFO] [stdout] 309 |     Ok(move |input| take_atom(qty).unwrap().apply(WordAtom::from(input)))
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<impl Pipe<SentenceAtom<'_>, (Vec<<SentenceAtom<'_> as take::TakeAtom>::Atom>,), E2, <SentenceAtom<'_> as take::TakeAtom>::Container>, Infallible>
[INFO] [stdout]    --> src/str.rs:340:21
[INFO] [stdout]     |
[INFO] [stdout] 340 |     Ok(move |input| take_atom(qty).unwrap().apply(SentenceAtom::from(input)))
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<impl Pipe<&str, (Vec<&str>,), pipe::error::Incomplete>, Infallible>
[INFO] [stdout]    --> src/str.rs:432:13
[INFO] [stdout]     |
[INFO] [stdout] 432 |             sentences::<_, Incomplete>(..)
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pipe-chain` (lib test) due to 5 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<impl Pipe<CharAtom<'_>, (Vec<<CharAtom<'_> as take::TakeAtom>::Atom>,), E2, <CharAtom<'_> as take::TakeAtom>::Container>, Infallible>
[INFO] [stdout]    --> src/str.rs:263:21
[INFO] [stdout]     |
[INFO] [stdout] 263 |     Ok(move |input| take_atom(qty).unwrap().apply(CharAtom::from(input)))
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<impl Pipe<GraphemeAtom<'_>, (Vec<<GraphemeAtom<'_> as take::TakeAtom>::Atom>,), E2, <GraphemeAtom<'_> as take::TakeAtom>::Container>, Infallible>
[INFO] [stdout]    --> src/str.rs:285:21
[INFO] [stdout]     |
[INFO] [stdout] 285 |     Ok(move |input| take_atom(qty).unwrap().apply(GraphemeAtom::from(input)))
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<impl Pipe<WordAtom<'_>, (Vec<<WordAtom<'_> as take::TakeAtom>::Atom>,), E2, <WordAtom<'_> as take::TakeAtom>::Container>, Infallible>
[INFO] [stdout]    --> src/str.rs:309:21
[INFO] [stdout]     |
[INFO] [stdout] 309 |     Ok(move |input| take_atom(qty).unwrap().apply(WordAtom::from(input)))
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<impl Pipe<SentenceAtom<'_>, (Vec<<SentenceAtom<'_> as take::TakeAtom>::Atom>,), E2, <SentenceAtom<'_> as take::TakeAtom>::Container>, Infallible>
[INFO] [stdout]    --> src/str.rs:340:21
[INFO] [stdout]     |
[INFO] [stdout] 340 |     Ok(move |input| take_atom(qty).unwrap().apply(SentenceAtom::from(input)))
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pipe-chain` (lib) due to 4 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "7011b0588b78d91a84796e50daa575e973b4083c0923cf18eb903fbcf1ba6955", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7011b0588b78d91a84796e50daa575e973b4083c0923cf18eb903fbcf1ba6955", kill_on_drop: false }`
[INFO] [stdout] 7011b0588b78d91a84796e50daa575e973b4083c0923cf18eb903fbcf1ba6955
