[INFO] fetching crate qcollect-traits 0.7.4...
[INFO] checking qcollect-traits-0.7.4 against master#158f00a1c5175648af6f6099b075f78d1d014a28 for pr-121251
[INFO] extracting crate qcollect-traits 0.7.4 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate qcollect-traits 0.7.4 on toolchain 158f00a1c5175648af6f6099b075f78d1d014a28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate qcollect-traits 0.7.4
[INFO] finished tweaking crates.io crate qcollect-traits 0.7.4
[INFO] tweaked toml for crates.io crate qcollect-traits 0.7.4 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded vec_map v0.3.0
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dbe7e8dae9b8977a89c91d0c23d6c19d484e1710757efdbeceaafbdbda84fedc
[INFO] running `Command { std: "docker" "start" "-a" "dbe7e8dae9b8977a89c91d0c23d6c19d484e1710757efdbeceaafbdbda84fedc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dbe7e8dae9b8977a89c91d0c23d6c19d484e1710757efdbeceaafbdbda84fedc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbe7e8dae9b8977a89c91d0c23d6c19d484e1710757efdbeceaafbdbda84fedc", kill_on_drop: false }`
[INFO] [stdout] dbe7e8dae9b8977a89c91d0c23d6c19d484e1710757efdbeceaafbdbda84fedc
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b4597dad028b7f69d9b668f7280a51bb0c27b4030562964f925981d723aa0bc
[INFO] running `Command { std: "docker" "start" "-a" "9b4597dad028b7f69d9b668f7280a51bb0c27b4030562964f925981d723aa0bc", kill_on_drop: false }`
[INFO] [stderr]     Checking bit-vec v0.4.4
[INFO] [stderr]     Checking vec_map v0.3.0
[INFO] [stderr]     Checking qcollect-traits v0.7.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `drain` has been stable since 1.6.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 |     drain,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `collections_bound` has been stable since 1.17.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 |     collections_bound, 
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `drain` has been stable since 1.6.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 |     drain,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `collections_bound` has been stable since 1.17.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 |     collections_bound, 
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `btree_range` has been stable since 1.17.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 |     btree_range, 
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `collections`
[INFO] [stdout]   --> src/lib.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     collections, 
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `btree_range` has been stable since 1.17.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 |     btree_range, 
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `collections`
[INFO] [stdout]   --> src/lib.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     collections, 
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0275]: overflow evaluating the requirement `<Self as traits::_Iterate<'a>>::Item == _`
[INFO] [stdout]   --> src/traits.rs:70:17
[INFO] [stdout]    |
[INFO] [stdout] 70 |     type Item = <Self::Iter as Iterator>::Item;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0275]: overflow evaluating the requirement `<Self as traits::_Iterate<'a>>::Item == _`
[INFO] [stdout]   --> src/traits.rs:70:17
[INFO] [stdout]    |
[INFO] [stdout] 70 |     type Item = <Self::Iter as Iterator>::Item;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0275]: overflow evaluating the requirement `<Self as traits::_IterateMut<'a>>::Item == _`
[INFO] [stdout]   --> src/traits.rs:80:17
[INFO] [stdout]    |
[INFO] [stdout] 80 |     type Item = <Self::IterMut as Iterator>::Item;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0275]: overflow evaluating the requirement `<Self as traits::_IterateMut<'a>>::Item == _`
[INFO] [stdout]   --> src/traits.rs:80:17
[INFO] [stdout]    |
[INFO] [stdout] 80 |     type Item = <Self::IterMut as Iterator>::Item;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0275, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0275`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0275, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0275`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `qcollect-traits` (lib) due to 4 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `qcollect-traits` (lib test) due to 4 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "9b4597dad028b7f69d9b668f7280a51bb0c27b4030562964f925981d723aa0bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b4597dad028b7f69d9b668f7280a51bb0c27b4030562964f925981d723aa0bc", kill_on_drop: false }`
[INFO] [stdout] 9b4597dad028b7f69d9b668f7280a51bb0c27b4030562964f925981d723aa0bc
[INFO] checking qcollect-traits-0.7.4 against try#b4fc5dbf0bc33be331f9d893db5b3a794f29724a+rustflags=-Dexplicit_range -Dtrait_impl_range -Wrange_syntax -Wrange_bounds for pr-121251
[INFO] extracting crate qcollect-traits 0.7.4 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate qcollect-traits 0.7.4 on toolchain b4fc5dbf0bc33be331f9d893db5b3a794f29724a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate qcollect-traits 0.7.4
[INFO] finished tweaking crates.io crate qcollect-traits 0.7.4
[INFO] tweaked toml for crates.io crate qcollect-traits 0.7.4 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 43d636b769f0f7cc9f8ed38cd80300ff1c1f029f828cf4399be07a5eee6dac22
[INFO] running `Command { std: "docker" "start" "-a" "43d636b769f0f7cc9f8ed38cd80300ff1c1f029f828cf4399be07a5eee6dac22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43d636b769f0f7cc9f8ed38cd80300ff1c1f029f828cf4399be07a5eee6dac22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43d636b769f0f7cc9f8ed38cd80300ff1c1f029f828cf4399be07a5eee6dac22", kill_on_drop: false }`
[INFO] [stdout] 43d636b769f0f7cc9f8ed38cd80300ff1c1f029f828cf4399be07a5eee6dac22
[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 -Dexplicit_range -Dtrait_impl_range -Wrange_syntax -Wrange_bounds" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d53e8f058b41557dd4aca34207dafce9f7786027da7c470118655c4a43a02ec
[INFO] running `Command { std: "docker" "start" "-a" "3d53e8f058b41557dd4aca34207dafce9f7786027da7c470118655c4a43a02ec", kill_on_drop: false }`
[INFO] [stderr]     Checking bit-vec v0.4.4
[INFO] [stderr]     Checking vec_map v0.3.0
[INFO] [stderr]     Checking qcollect-traits v0.7.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/impls/slice.rs:47:15
[INFO] [stdout]    |
[INFO] [stdout] 47 |         &self[start..end]
[INFO] [stdout]    |               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-W range-syntax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/impls/slice.rs:62:19
[INFO] [stdout]    |
[INFO] [stdout] 62 |         &mut self[start..end]
[INFO] [stdout]    |                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/impls/vec.rs:123:20
[INFO] [stdout]     |
[INFO] [stdout] 123 |         self.drain(start..end)
[INFO] [stdout]     |                    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/impls/slice.rs:47:15
[INFO] [stdout]    |
[INFO] [stdout] 47 |         &self[start..end]
[INFO] [stdout]    |               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-W range-syntax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/impls/slice.rs:62:19
[INFO] [stdout]    |
[INFO] [stdout] 62 |         &mut self[start..end]
[INFO] [stdout]    |                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]   --> src/impls/slice.rs:89:19
[INFO] [stdout]    |
[INFO] [stdout] 89 |     assert_eq!(&c[2..], (&c).get(2..)); 
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]   --> src/impls/slice.rs:89:34
[INFO] [stdout]    |
[INFO] [stdout] 89 |     assert_eq!(&c[2..], (&c).get(2..)); 
[INFO] [stdout]    |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/impls/slice.rs:90:19
[INFO] [stdout]    |
[INFO] [stdout] 90 |     assert_eq!(&c[2..4], (&c).get(2..4)); 
[INFO] [stdout]    |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> src/impls/slice.rs:90:35
[INFO] [stdout]    |
[INFO] [stdout] 90 |     assert_eq!(&c[2..4], (&c).get(2..4)); 
[INFO] [stdout]    |                                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]   --> src/impls/slice.rs:93:19
[INFO] [stdout]    |
[INFO] [stdout] 93 |     assert_eq!(&c[2..], (&c).get((Bound::Excluded(1), Bound::Unbounded))); 
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/impls/vec.rs:123:20
[INFO] [stdout]     |
[INFO] [stdout] 123 |         self.drain(start..end)
[INFO] [stdout]     |                    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `drain` has been stable since 1.6.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 |     drain,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `collections_bound` has been stable since 1.17.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 |     collections_bound, 
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `btree_range` has been stable since 1.17.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 |     btree_range, 
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `collections`
[INFO] [stdout]   --> src/lib.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     collections, 
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `drain` has been stable since 1.6.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 |     drain,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `collections_bound` has been stable since 1.17.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 |     collections_bound, 
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `btree_range` has been stable since 1.17.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 |     btree_range, 
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `collections`
[INFO] [stdout]   --> src/lib.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     collections, 
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0275]: overflow evaluating the requirement `<Self as traits::_Iterate<'a>>::Item == _`
[INFO] [stdout]   --> src/traits.rs:70:17
[INFO] [stdout]    |
[INFO] [stdout] 70 |     type Item = <Self::Iter as Iterator>::Item;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0275]: overflow evaluating the requirement `<Self as traits::_Iterate<'a>>::Item == _`
[INFO] [stdout]   --> src/traits.rs:70:17
[INFO] [stdout]    |
[INFO] [stdout] 70 |     type Item = <Self::Iter as Iterator>::Item;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0275]: overflow evaluating the requirement `<Self as traits::_IterateMut<'a>>::Item == _`
[INFO] [stdout]   --> src/traits.rs:80:17
[INFO] [stdout]    |
[INFO] [stdout] 80 |     type Item = <Self::IterMut as Iterator>::Item;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0275]: overflow evaluating the requirement `<Self as traits::_IterateMut<'a>>::Item == _`
[INFO] [stdout]   --> src/traits.rs:80:17
[INFO] [stdout]    |
[INFO] [stdout] 80 |     type Item = <Self::IterMut as Iterator>::Item;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0275, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0275`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0275, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0275`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `qcollect-traits` (lib) due to 4 previous errors; 6 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `qcollect-traits` (lib test) due to 4 previous errors; 11 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "3d53e8f058b41557dd4aca34207dafce9f7786027da7c470118655c4a43a02ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d53e8f058b41557dd4aca34207dafce9f7786027da7c470118655c4a43a02ec", kill_on_drop: false }`
[INFO] [stdout] 3d53e8f058b41557dd4aca34207dafce9f7786027da7c470118655c4a43a02ec
