[INFO] fetching crate gray-codes 0.1.1...
[INFO] checking gray-codes-0.1.1 against master#158f00a1c5175648af6f6099b075f78d1d014a28 for pr-121251
[INFO] extracting crate gray-codes 0.1.1 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate gray-codes 0.1.1 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 gray-codes 0.1.1
[INFO] finished tweaking crates.io crate gray-codes 0.1.1
[INFO] tweaked toml for crates.io crate gray-codes 0.1.1 written to /workspace/builds/worker-3-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] 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 11a1d7edf6e1ea51275267c8b643e02b6e7095ef9c75301e961af0b4040d28fb
[INFO] running `Command { std: "docker" "start" "-a" "11a1d7edf6e1ea51275267c8b643e02b6e7095ef9c75301e961af0b4040d28fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11a1d7edf6e1ea51275267c8b643e02b6e7095ef9c75301e961af0b4040d28fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11a1d7edf6e1ea51275267c8b643e02b6e7095ef9c75301e961af0b4040d28fb", kill_on_drop: false }`
[INFO] [stdout] 11a1d7edf6e1ea51275267c8b643e02b6e7095ef9c75301e961af0b4040d28fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] d7d2b91e3e311b88a1f77834ad2784512024227a37cb8e9724a9168703b075b0
[INFO] running `Command { std: "docker" "start" "-a" "d7d2b91e3e311b88a1f77834ad2784512024227a37cb8e9724a9168703b075b0", kill_on_drop: false }`
[INFO] [stderr]     Checking gray-codes v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "d7d2b91e3e311b88a1f77834ad2784512024227a37cb8e9724a9168703b075b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7d2b91e3e311b88a1f77834ad2784512024227a37cb8e9724a9168703b075b0", kill_on_drop: false }`
[INFO] [stdout] d7d2b91e3e311b88a1f77834ad2784512024227a37cb8e9724a9168703b075b0
[INFO] checking gray-codes-0.1.1 against try#b4fc5dbf0bc33be331f9d893db5b3a794f29724a+rustflags=-Dexplicit_range -Dtrait_impl_range -Wrange_syntax -Wrange_bounds for pr-121251
[INFO] extracting crate gray-codes 0.1.1 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate gray-codes 0.1.1 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 gray-codes 0.1.1
[INFO] finished tweaking crates.io crate gray-codes 0.1.1
[INFO] tweaked toml for crates.io crate gray-codes 0.1.1 written to /workspace/builds/worker-3-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] 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 245356efeb78070fe2980dee104dfda90b38da55c0a56c44cfea94eff07cdc78
[INFO] running `Command { std: "docker" "start" "-a" "245356efeb78070fe2980dee104dfda90b38da55c0a56c44cfea94eff07cdc78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "245356efeb78070fe2980dee104dfda90b38da55c0a56c44cfea94eff07cdc78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "245356efeb78070fe2980dee104dfda90b38da55c0a56c44cfea94eff07cdc78", kill_on_drop: false }`
[INFO] [stdout] 245356efeb78070fe2980dee104dfda90b38da55c0a56c44cfea94eff07cdc78
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 236218906f6ddd77a81fe7f889989d156da53115323923bed748443b93f41e70
[INFO] running `Command { std: "docker" "start" "-a" "236218906f6ddd77a81fe7f889989d156da53115323923bed748443b93f41e70", kill_on_drop: false }`
[INFO] [stderr]     Checking gray-codes v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/lib.rs:97:26
[INFO] [stdout]     |
[INFO] [stdout] 97  |                           (0..<$uint_ty>::max_value()).chain(Some(<$uint_ty>::max_value()).into_iter())
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 216 | / gray_code_impl!(#[doc="Iterator over binary reflected Gray codes as u8 values"]
[INFO] [stdout] 217 | |                 GrayCode8, u8, 8, gray_code_8, 8);
[INFO] [stdout]     | |_________________________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-W range-syntax`
[INFO] [stdout]     = note: this warning originates in the macro `gray_code_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/lib.rs:99:26
[INFO] [stdout]     |
[INFO] [stdout] 99  |                           (0..((1 as $uint_ty) << bits)).chain(None.into_iter())
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 216 | / gray_code_impl!(#[doc="Iterator over binary reflected Gray codes as u8 values"]
[INFO] [stdout] 217 | |                 GrayCode8, u8, 8, gray_code_8, 8);
[INFO] [stdout]     | |_________________________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `gray_code_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/lib.rs:97:26
[INFO] [stdout]     |
[INFO] [stdout] 97  |                           (0..<$uint_ty>::max_value()).chain(Some(<$uint_ty>::max_value()).into_iter())
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 218 | / gray_code_impl!(#[doc="Iterator over binary reflected Gray codes as u16 values"]
[INFO] [stdout] 219 | |                 GrayCode16, u16, 16, gray_code_16, 10);
[INFO] [stdout]     | |______________________________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `gray_code_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/lib.rs:99:26
[INFO] [stdout]     |
[INFO] [stdout] 99  |                           (0..((1 as $uint_ty) << bits)).chain(None.into_iter())
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 218 | / gray_code_impl!(#[doc="Iterator over binary reflected Gray codes as u16 values"]
[INFO] [stdout] 219 | |                 GrayCode16, u16, 16, gray_code_16, 10);
[INFO] [stdout]     | |______________________________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `gray_code_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/lib.rs:97:26
[INFO] [stdout]     |
[INFO] [stdout] 97  |                           (0..<$uint_ty>::max_value()).chain(Some(<$uint_ty>::max_value()).into_iter())
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 220 | / gray_code_impl!(#[doc="Iterator over binary reflected Gray codes as u32 values"]
[INFO] [stdout] 221 | |                 GrayCode32, u32, 32, gray_code_32, 11);
[INFO] [stdout]     | |______________________________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `gray_code_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/lib.rs:99:26
[INFO] [stdout]     |
[INFO] [stdout] 99  |                           (0..((1 as $uint_ty) << bits)).chain(None.into_iter())
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 220 | / gray_code_impl!(#[doc="Iterator over binary reflected Gray codes as u32 values"]
[INFO] [stdout] 221 | |                 GrayCode32, u32, 32, gray_code_32, 11);
[INFO] [stdout]     | |______________________________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `gray_code_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/lib.rs:97:26
[INFO] [stdout]     |
[INFO] [stdout] 97  |                           (0..<$uint_ty>::max_value()).chain(Some(<$uint_ty>::max_value()).into_iter())
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 222 | / gray_code_impl!(#[doc="Iterator over binary reflected Gray codes as u64 values"]
[INFO] [stdout] 223 | |                 GrayCode64, u64, 64, gray_code_64, 12);
[INFO] [stdout]     | |______________________________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `gray_code_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/lib.rs:99:26
[INFO] [stdout]     |
[INFO] [stdout] 99  |                           (0..((1 as $uint_ty) << bits)).chain(None.into_iter())
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 222 | / gray_code_impl!(#[doc="Iterator over binary reflected Gray codes as u64 values"]
[INFO] [stdout] 223 | |                 GrayCode64, u64, 64, gray_code_64, 12);
[INFO] [stdout]     | |______________________________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `gray_code_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/lib.rs:315:26
[INFO] [stdout]     |
[INFO] [stdout] 315 |             focus_ptrs: (0..item_count as u16).collect(),
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/lib.rs:97:26
[INFO] [stdout]     |
[INFO] [stdout] 97  |                           (0..<$uint_ty>::max_value()).chain(Some(<$uint_ty>::max_value()).into_iter())
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 216 | / gray_code_impl!(#[doc="Iterator over binary reflected Gray codes as u8 values"]
[INFO] [stdout] 217 | |                 GrayCode8, u8, 8, gray_code_8, 8);
[INFO] [stdout]     | |_________________________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-W range-syntax`
[INFO] [stdout]     = note: this warning originates in the macro `gray_code_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/lib.rs:99:26
[INFO] [stdout]     |
[INFO] [stdout] 99  |                           (0..((1 as $uint_ty) << bits)).chain(None.into_iter())
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 216 | / gray_code_impl!(#[doc="Iterator over binary reflected Gray codes as u8 values"]
[INFO] [stdout] 217 | |                 GrayCode8, u8, 8, gray_code_8, 8);
[INFO] [stdout]     | |_________________________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `gray_code_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/lib.rs:198:22
[INFO] [stdout]     |
[INFO] [stdout] 198 |               assert!((0..(1<<$test_bits)).all(|n| codes.contains(&(n as $uint_ty))));
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 216 | / gray_code_impl!(#[doc="Iterator over binary reflected Gray codes as u8 values"]
[INFO] [stdout] 217 | |                 GrayCode8, u8, 8, gray_code_8, 8);
[INFO] [stdout]     | |_________________________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `gray_code_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/lib.rs:97:26
[INFO] [stdout]     |
[INFO] [stdout] 97  |                           (0..<$uint_ty>::max_value()).chain(Some(<$uint_ty>::max_value()).into_iter())
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 218 | / gray_code_impl!(#[doc="Iterator over binary reflected Gray codes as u16 values"]
[INFO] [stdout] 219 | |                 GrayCode16, u16, 16, gray_code_16, 10);
[INFO] [stdout]     | |______________________________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `gray_code_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/lib.rs:99:26
[INFO] [stdout]     |
[INFO] [stdout] 99  |                           (0..((1 as $uint_ty) << bits)).chain(None.into_iter())
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 218 | / gray_code_impl!(#[doc="Iterator over binary reflected Gray codes as u16 values"]
[INFO] [stdout] 219 | |                 GrayCode16, u16, 16, gray_code_16, 10);
[INFO] [stdout]     | |______________________________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `gray_code_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/lib.rs:198:22
[INFO] [stdout]     |
[INFO] [stdout] 198 |               assert!((0..(1<<$test_bits)).all(|n| codes.contains(&(n as $uint_ty))));
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 218 | / gray_code_impl!(#[doc="Iterator over binary reflected Gray codes as u16 values"]
[INFO] [stdout] 219 | |                 GrayCode16, u16, 16, gray_code_16, 10);
[INFO] [stdout]     | |______________________________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `gray_code_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/lib.rs:97:26
[INFO] [stdout]     |
[INFO] [stdout] 97  |                           (0..<$uint_ty>::max_value()).chain(Some(<$uint_ty>::max_value()).into_iter())
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 220 | / gray_code_impl!(#[doc="Iterator over binary reflected Gray codes as u32 values"]
[INFO] [stdout] 221 | |                 GrayCode32, u32, 32, gray_code_32, 11);
[INFO] [stdout]     | |______________________________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `gray_code_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/lib.rs:99:26
[INFO] [stdout]     |
[INFO] [stdout] 99  |                           (0..((1 as $uint_ty) << bits)).chain(None.into_iter())
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 220 | / gray_code_impl!(#[doc="Iterator over binary reflected Gray codes as u32 values"]
[INFO] [stdout] 221 | |                 GrayCode32, u32, 32, gray_code_32, 11);
[INFO] [stdout]     | |______________________________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `gray_code_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/lib.rs:198:22
[INFO] [stdout]     |
[INFO] [stdout] 198 |               assert!((0..(1<<$test_bits)).all(|n| codes.contains(&(n as $uint_ty))));
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 220 | / gray_code_impl!(#[doc="Iterator over binary reflected Gray codes as u32 values"]
[INFO] [stdout] 221 | |                 GrayCode32, u32, 32, gray_code_32, 11);
[INFO] [stdout]     | |______________________________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `gray_code_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/lib.rs:97:26
[INFO] [stdout]     |
[INFO] [stdout] 97  |                           (0..<$uint_ty>::max_value()).chain(Some(<$uint_ty>::max_value()).into_iter())
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 222 | / gray_code_impl!(#[doc="Iterator over binary reflected Gray codes as u64 values"]
[INFO] [stdout] 223 | |                 GrayCode64, u64, 64, gray_code_64, 12);
[INFO] [stdout]     | |______________________________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `gray_code_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/lib.rs:99:26
[INFO] [stdout]     |
[INFO] [stdout] 99  |                           (0..((1 as $uint_ty) << bits)).chain(None.into_iter())
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 222 | / gray_code_impl!(#[doc="Iterator over binary reflected Gray codes as u64 values"]
[INFO] [stdout] 223 | |                 GrayCode64, u64, 64, gray_code_64, 12);
[INFO] [stdout]     | |______________________________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `gray_code_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/lib.rs:198:22
[INFO] [stdout]     |
[INFO] [stdout] 198 |               assert!((0..(1<<$test_bits)).all(|n| codes.contains(&(n as $uint_ty))));
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 222 | / gray_code_impl!(#[doc="Iterator over binary reflected Gray codes as u64 values"]
[INFO] [stdout] 223 | |                 GrayCode64, u64, 64, gray_code_64, 12);
[INFO] [stdout]     | |______________________________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `gray_code_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/lib.rs:315:26
[INFO] [stdout]     |
[INFO] [stdout] 315 |             focus_ptrs: (0..item_count as u16).collect(),
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: explicit usage of `Range` type in public function
[INFO] [stdout]    --> src/lib.rs:107:38
[INFO] [stdout]     |
[INFO] [stdout] 107 |               pub fn over_range(range: Range<$uint_ty>) -> $nm {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 216 | / gray_code_impl!(#[doc="Iterator over binary reflected Gray codes as u8 values"]
[INFO] [stdout] 217 | |                 GrayCode8, u8, 8, gray_code_8, 8);
[INFO] [stdout]     | |_________________________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D explicit-range`
[INFO] [stdout]     = note: this error originates in the macro `gray_code_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: explicit usage of `Range` type in public function
[INFO] [stdout]    --> src/lib.rs:107:38
[INFO] [stdout]     |
[INFO] [stdout] 107 |               pub fn over_range(range: Range<$uint_ty>) -> $nm {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 218 | / gray_code_impl!(#[doc="Iterator over binary reflected Gray codes as u16 values"]
[INFO] [stdout] 219 | |                 GrayCode16, u16, 16, gray_code_16, 10);
[INFO] [stdout]     | |______________________________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `gray_code_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: explicit usage of `Range` type in public function
[INFO] [stdout]    --> src/lib.rs:107:38
[INFO] [stdout]     |
[INFO] [stdout] 107 |               pub fn over_range(range: Range<$uint_ty>) -> $nm {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 220 | / gray_code_impl!(#[doc="Iterator over binary reflected Gray codes as u32 values"]
[INFO] [stdout] 221 | |                 GrayCode32, u32, 32, gray_code_32, 11);
[INFO] [stdout]     | |______________________________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `gray_code_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: explicit usage of `Range` type in public function
[INFO] [stdout]    --> src/lib.rs:107:38
[INFO] [stdout]     |
[INFO] [stdout] 107 |               pub fn over_range(range: Range<$uint_ty>) -> $nm {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 222 | / gray_code_impl!(#[doc="Iterator over binary reflected Gray codes as u64 values"]
[INFO] [stdout] 223 | |                 GrayCode64, u64, 64, gray_code_64, 12);
[INFO] [stdout]     | |______________________________________________________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `gray_code_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors; 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gray-codes` (lib) due to 5 previous errors; 9 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "236218906f6ddd77a81fe7f889989d156da53115323923bed748443b93f41e70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "236218906f6ddd77a81fe7f889989d156da53115323923bed748443b93f41e70", kill_on_drop: false }`
[INFO] [stdout] 236218906f6ddd77a81fe7f889989d156da53115323923bed748443b93f41e70
