[INFO] cloning repository https://github.com/arnau/hextermbiest
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/arnau/hextermbiest" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farnau%2Fhextermbiest", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farnau%2Fhextermbiest'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 05b4f8d965dd5b18c50afad208b5461eff270d53
[INFO] documenting arnau/hextermbiest against 1.75.0 for beta-1.76-rustdoc-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farnau%2Fhextermbiest" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/arnau/hextermbiest on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/arnau/hextermbiest
[INFO] finished tweaking git repo https://github.com/arnau/hextermbiest
[INFO] tweaked toml for git repo https://github.com/arnau/hextermbiest written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/arnau/hextermbiest 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded phf_shared v0.7.20
[INFO] [stderr]   Downloaded libc v0.2.18
[INFO] [stderr]   Downloaded rustc-serialize v0.3.22
[INFO] [stderr]   Downloaded unicode-width v0.1.3
[INFO] [stderr]   Downloaded phf v0.7.20
[INFO] [stderr]   Downloaded num-rational v0.1.35
[INFO] [stderr]   Downloaded num-bigint v0.1.35
[INFO] [stderr]   Downloaded num v0.1.36
[INFO] [stderr]   Downloaded phf_generator v0.7.20
[INFO] [stderr]   Downloaded rand v0.3.15
[INFO] [stderr]   Downloaded term_size v0.2.1
[INFO] [stderr]   Downloaded phf_codegen v0.7.20
[INFO] [stderr]   Downloaded num-traits v0.1.36
[INFO] [stderr]   Downloaded num-complex v0.1.35
[INFO] [stderr]   Downloaded strsim v0.5.2
[INFO] [stderr]   Downloaded ansi_term v0.9.0
[INFO] [stderr]   Downloaded unicode-segmentation v0.1.3
[INFO] [stderr]   Downloaded vec_map v0.6.0
[INFO] [stderr]   Downloaded clap v2.19.2
[INFO] [stderr]   Downloaded termion v1.1.3
[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" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b08d23a14d3db3ee3d20277cbdaa5426e3225f1f63e14a124fd2ad2305db05ee
[INFO] running `Command { std: "docker" "start" "-a" "b08d23a14d3db3ee3d20277cbdaa5426e3225f1f63e14a124fd2ad2305db05ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b08d23a14d3db3ee3d20277cbdaa5426e3225f1f63e14a124fd2ad2305db05ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b08d23a14d3db3ee3d20277cbdaa5426e3225f1f63e14a124fd2ad2305db05ee", kill_on_drop: false }`
[INFO] [stdout] b08d23a14d3db3ee3d20277cbdaa5426e3225f1f63e14a124fd2ad2305db05ee
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b62656f15e4c5c465062b969e726f5409420ea18c575afcec082e28ea18588d
[INFO] running `Command { std: "docker" "start" "-a" "0b62656f15e4c5c465062b969e726f5409420ea18c575afcec082e28ea18588d", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.18
[INFO] [stderr]     Checking num-traits v0.1.36
[INFO] [stderr]     Checking rustc-serialize v0.3.22
[INFO] [stderr]    Compiling phf_shared v0.7.20
[INFO] [stderr]     Checking unicode-segmentation v0.1.3
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]     Checking phf v0.7.20
[INFO] [stderr]     Checking unicode-width v0.1.3
[INFO] [stderr]     Checking vec_map v0.6.0
[INFO] [stderr]     Checking strsim v0.5.2
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking term_size v0.2.1
[INFO] [stderr]     Checking termion v1.1.3
[INFO] [stderr]     Checking clap v2.19.2
[INFO] [stderr]     Checking num-integer v0.1.32
[INFO] [stderr]     Checking num-iter v0.1.32
[INFO] [stderr]    Compiling phf_generator v0.7.20
[INFO] [stderr]    Compiling phf_codegen v0.7.20
[INFO] [stderr]    Compiling palette v0.2.1
[INFO] [stderr]     Checking num-bigint v0.1.35
[INFO] [stderr]     Checking num-complex v0.1.35
[INFO] [stderr]     Checking num-rational v0.1.35
[INFO] [stderr]     Checking num v0.1.36
[INFO] [stderr]  Documenting hextermbiest v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking hextermbiest v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stdout]   --> src/color.rs:89:19
[INFO] [stdout]    |
[INFO] [stdout] 89 |         let s = s.trim_left_matches('#');
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] help: replace the use of the deprecated method
[INFO] [stdout]    |
[INFO] [stdout] 89 |         let s = s.trim_start_matches('#');
[INFO] [stdout]    |                   ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021
[INFO] [stdout]    --> src/color.rs:164:40
[INFO] [stdout]     |
[INFO] [stdout] 164 |                 let (_, &hex) = SHADES.into_iter().enumerate()
[INFO] [stdout]     |                                        ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout]     = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 164 |                 let (_, &hex) = SHADES.iter().enumerate()
[INFO] [stdout]     |                                        ~~~~
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]     |
[INFO] [stdout] 164 |                 let (_, &hex) = IntoIterator::into_iter(SHADES).enumerate()
[INFO] [stdout]     |                                 ++++++++++++++++++++++++      ~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021
[INFO] [stdout]    --> src/color.rs:219:46
[INFO] [stdout]     |
[INFO] [stdout] 219 |             if let Some((shade, _)) = SHADES.into_iter().enumerate()
[INFO] [stdout]     |                                              ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 219 |             if let Some((shade, _)) = SHADES.iter().enumerate()
[INFO] [stdout]     |                                              ~~~~
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]     |
[INFO] [stdout] 219 |             if let Some((shade, _)) = IntoIterator::into_iter(SHADES).enumerate()
[INFO] [stdout]     |                                       ++++++++++++++++++++++++      ~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021
[INFO] [stdout]    --> src/color.rs:227:41
[INFO] [stdout]     |
[INFO] [stdout] 227 |         if let Some((code, _)) = SYSTEM.into_iter().enumerate()
[INFO] [stdout]     |                                         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 227 |         if let Some((code, _)) = SYSTEM.iter().enumerate()
[INFO] [stdout]     |                                         ~~~~
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]     |
[INFO] [stdout] 227 |         if let Some((code, _)) = IntoIterator::into_iter(SYSTEM).enumerate()
[INFO] [stdout]     |                                  ++++++++++++++++++++++++      ~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021
[INFO] [stdout]    --> src/color.rs:311:12
[INFO] [stdout]     |
[INFO] [stdout] 311 |     SHADES.into_iter()
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 311 |     SHADES.iter()
[INFO] [stdout]     |            ~~~~
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]     |
[INFO] [stdout] 311 |     IntoIterator::into_iter(SHADES)
[INFO] [stdout]     |     ++++++++++++++++++++++++      ~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.40s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.22
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] [stderr]    Generated /opt/rustwide/target/doc/hextermbiest/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/codex/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/cube/index.html
[INFO] running `Command { std: "docker" "inspect" "0b62656f15e4c5c465062b969e726f5409420ea18c575afcec082e28ea18588d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b62656f15e4c5c465062b969e726f5409420ea18c575afcec082e28ea18588d", kill_on_drop: false }`
[INFO] [stdout] 0b62656f15e4c5c465062b969e726f5409420ea18c575afcec082e28ea18588d
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=1" "-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" "+1.75.0" "rustdoc" "--lib" "-Zrustdoc-map" "-Z" "unstable-options" "--config" "build.rustdocflags=[\"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68ffd99ec759767b27151279b2c6123767a0c9e47d72d4f44642d59bc631c0ec
[INFO] running `Command { std: "docker" "start" "-a" "68ffd99ec759767b27151279b2c6123767a0c9e47d72d4f44642d59bc631c0ec", kill_on_drop: false }`
[INFO] [stderr]  Documenting hextermbiest v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.22
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] [stderr]    Generated /opt/rustwide/target/doc/hextermbiest/index.html
[INFO] running `Command { std: "docker" "inspect" "68ffd99ec759767b27151279b2c6123767a0c9e47d72d4f44642d59bc631c0ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68ffd99ec759767b27151279b2c6123767a0c9e47d72d4f44642d59bc631c0ec", kill_on_drop: false }`
[INFO] [stdout] 68ffd99ec759767b27151279b2c6123767a0c9e47d72d4f44642d59bc631c0ec
