[INFO] cloning repository https://github.com/two-horned/sat-solver-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/two-horned/sat-solver-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwo-horned%2Fsat-solver-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwo-horned%2Fsat-solver-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0feb5e0684771f7593e594304dcb53729a146751
[INFO] checking two-horned/sat-solver-rs against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwo-horned%2Fsat-solver-rs" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/two-horned/sat-solver-rs
[INFO] finished tweaking git repo https://github.com/two-horned/sat-solver-rs
[INFO] tweaked toml for git repo https://github.com/two-horned/sat-solver-rs written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/two-horned/sat-solver-rs on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/two-horned/sat-solver-rs 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 720b2f76b597b74abd4df7323aba34f587edd3d61f82c92df25cfb015d5dffae
[INFO] running `Command { std: "docker" "start" "-a" "720b2f76b597b74abd4df7323aba34f587edd3d61f82c92df25cfb015d5dffae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "720b2f76b597b74abd4df7323aba34f587edd3d61f82c92df25cfb015d5dffae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "720b2f76b597b74abd4df7323aba34f587edd3d61f82c92df25cfb015d5dffae", kill_on_drop: false }`
[INFO] [stdout] 720b2f76b597b74abd4df7323aba34f587edd3d61f82c92df25cfb015d5dffae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5326fb727edd8bc14c96396c6da1a347fc225a5dd5f4a13a8eb4fd4e2c60567f
[INFO] running `Command { std: "docker" "start" "-a" "5326fb727edd8bc14c96396c6da1a347fc225a5dd5f4a13a8eb4fd4e2c60567f", kill_on_drop: false }`
[INFO] [stderr]     Checking sat-solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | / #![feature(
[INFO] [stdout] 2 | |     allocator_api,
[INFO] [stdout] 3 | |     alloc_layout_extra,
[INFO] [stdout] 4 | |     iter_chain,
[INFO] [stdout] 5 | |     ptr_metadata,
[INFO] [stdout] 6 | |     vec_push_within_capacity
[INFO] [stdout] 7 | | )]
[INFO] [stdout]   | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/problem.rs:12:82
[INFO] [stdout]    |
[INFO] [stdout] 12 | ) -> Map<Zip<<I as IntoIterator>::IntoIter, <J as IntoIterator>::IntoIter>, impl (FnMut((T, S)) -> R)>
[INFO] [stdout]    |                                                                                  ^                  ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 12 - ) -> Map<Zip<<I as IntoIterator>::IntoIter, <J as IntoIterator>::IntoIter>, impl (FnMut((T, S)) -> R)>
[INFO] [stdout] 12 + ) -> Map<Zip<<I as IntoIterator>::IntoIter, <J as IntoIterator>::IntoIter>, impl FnMut((T, S)) -> R >
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `alloc_layout_extra` has been stable since 1.95.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     alloc_layout_extra,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `iter_chain` has been stable since 1.91.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     iter_chain,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | / #![feature(
[INFO] [stdout] 2 | |     allocator_api,
[INFO] [stdout] 3 | |     alloc_layout_extra,
[INFO] [stdout] 4 | |     iter_chain,
[INFO] [stdout] 5 | |     ptr_metadata,
[INFO] [stdout] 6 | |     vec_push_within_capacity
[INFO] [stdout] 7 | | )]
[INFO] [stdout]   | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/problem.rs:12:82
[INFO] [stdout]    |
[INFO] [stdout] 12 | ) -> Map<Zip<<I as IntoIterator>::IntoIter, <J as IntoIterator>::IntoIter>, impl (FnMut((T, S)) -> R)>
[INFO] [stdout]    |                                                                                  ^                  ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 12 - ) -> Map<Zip<<I as IntoIterator>::IntoIter, <J as IntoIterator>::IntoIter>, impl (FnMut((T, S)) -> R)>
[INFO] [stdout] 12 + ) -> Map<Zip<<I as IntoIterator>::IntoIter, <J as IntoIterator>::IntoIter>, impl FnMut((T, S)) -> R >
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `alloc_layout_extra` has been stable since 1.95.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     alloc_layout_extra,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `iter_chain` has been stable since 1.91.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     iter_chain,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | / #![feature(
[INFO] [stdout] 2 | |     allocator_api,
[INFO] [stdout] 3 | |     alloc_layout_extra,
[INFO] [stdout] 4 | |     iter_chain,
[INFO] [stdout] 5 | |     ptr_metadata,
[INFO] [stdout] 6 | |     vec_push_within_capacity
[INFO] [stdout] 7 | | )]
[INFO] [stdout]   | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/problem.rs:12:82
[INFO] [stdout]    |
[INFO] [stdout] 12 | ) -> Map<Zip<<I as IntoIterator>::IntoIter, <J as IntoIterator>::IntoIter>, impl (FnMut((T, S)) -> R)>
[INFO] [stdout]    |                                                                                  ^                  ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 12 - ) -> Map<Zip<<I as IntoIterator>::IntoIter, <J as IntoIterator>::IntoIter>, impl (FnMut((T, S)) -> R)>
[INFO] [stdout] 12 + ) -> Map<Zip<<I as IntoIterator>::IntoIter, <J as IntoIterator>::IntoIter>, impl FnMut((T, S)) -> R >
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `alloc_layout_extra` has been stable since 1.95.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     alloc_layout_extra,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `iter_chain` has been stable since 1.91.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     iter_chain,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sat-solver` (lib) due to 1 previous error; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sat-solver` (lib test) due to 1 previous error; 3 warnings emitted
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sat-solver` (lib) due to 1 previous error; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "5326fb727edd8bc14c96396c6da1a347fc225a5dd5f4a13a8eb4fd4e2c60567f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5326fb727edd8bc14c96396c6da1a347fc225a5dd5f4a13a8eb4fd4e2c60567f", kill_on_drop: false }`
[INFO] [stdout] 5326fb727edd8bc14c96396c6da1a347fc225a5dd5f4a13a8eb4fd4e2c60567f
