[INFO] cloning repository https://github.com/ut-utp/playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ut-utp/playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fut-utp%2Fplayground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fut-utp%2Fplayground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ef2cac55e8db8937cf2c1915baded46e95336618
[INFO] documenting ut-utp/playground against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fut-utp%2Fplayground" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ut-utp/playground on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ut-utp/playground
[INFO] finished tweaking git repo https://github.com/ut-utp/playground
[INFO] tweaked toml for git repo https://github.com/ut-utp/playground written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/ut-utp/playground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 07d8b097715416acccdc15189b8489486e31c90d5bba01d880fd0cac81bfea00
[INFO] running `Command { std: "docker" "start" "-a" "07d8b097715416acccdc15189b8489486e31c90d5bba01d880fd0cac81bfea00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07d8b097715416acccdc15189b8489486e31c90d5bba01d880fd0cac81bfea00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07d8b097715416acccdc15189b8489486e31c90d5bba01d880fd0cac81bfea00", kill_on_drop: false }`
[INFO] [stdout] 07d8b097715416acccdc15189b8489486e31c90d5bba01d880fd0cac81bfea00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07f514eb6eedb94c76ce6075db13ec0f7ec763bc495d413530f1a1a7178a9338
[INFO] running `Command { std: "docker" "start" "-a" "07f514eb6eedb94c76ce6075db13ec0f7ec763bc495d413530f1a1a7178a9338", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.4
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]     Checking static_assertions v0.3.4
[INFO] [stderr]     Checking quote v1.0.2
[INFO] [stderr]  Documenting repeat-macros v0.1.0 (/opt/rustwide/workdir/repeat-macros)
[INFO] [stderr]    Compiling repeat-macros v0.1.0 (/opt/rustwide/workdir/repeat-macros)
[INFO] [stderr]  Documenting hdl v0.1.0 (/opt/rustwide/workdir/hdl)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> hdl/src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(const_fn)]
[INFO] [stdout]   |            ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `legacy_directory_ownership` has been removed: converted into hard error, see issue #37872 <https://github.com/rust-lang/rust/issues/37872> for more information
[INFO] [stdout]   --> hdl/src/lib.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 |        legacy_directory_ownership,
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `plugin_as_library` has been removed: plugins have been deprecated and retired
[INFO] [stdout]   --> hdl/src/lib.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 |        plugin_as_library,
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `safe_extern_statics` has been removed: converted into hard error, see issue #36247 <https://github.com/rust-lang/rust/issues/36247> for more information
[INFO] [stdout]   --> hdl/src/lib.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 |        safe_extern_statics,
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown lint: `unions_with_drop_fields`
[INFO] [stdout]   --> hdl/src/lib.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 |        unions_with_drop_fields,
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unknown_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: an inner attribute is not permitted in this context
[INFO] [stdout]   --> hdl/src/util.rs:80:13
[INFO] [stdout]    |
[INFO] [stdout] 80 |             #![allow(unsafe_code)]
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: inner attributes, like `#![no_std]`, annotate the item enclosing them, and are usually found at the beginning of source files. Outer attributes, like `#[test]`, annotate the item following them.
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: an inner attribute is not permitted in this context
[INFO] [stdout]    --> hdl/src/wires/mod.rs:165:13
[INFO] [stdout]     |
[INFO] [stdout] 165 |             #![allow(unsafe_code)]
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: inner attributes, like `#![no_std]`, annotate the item enclosing them, and are usually found at the beginning of source files. Outer attributes, like `#[test]`, annotate the item following them.
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `format` in this scope
[INFO] [stdout]   --> hdl/src/ops/add.rs:34:10
[INFO] [stdout]    |
[INFO] [stdout] 34 |         (format!("({} + {})", ml, mr), lhs + rhs)
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `format` in this scope
[INFO] [stdout]   --> hdl/src/ops/imm.rs:25:10
[INFO] [stdout]    |
[INFO] [stdout] 25 |         (format!("{}", self.imm), self.imm)
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `format` in this scope
[INFO] [stdout]    --> hdl/src/wires/mod.rs:201:13
[INFO] [stdout]     |
[INFO] [stdout] 201 |             format!("{} can't fit in a {} bit wire!", val, B)
[INFO] [stdout]     |             ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `String` in this scope
[INFO] [stdout]  --> hdl/src/ops/mod.rs:7:40
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn execute_with_metadata(self) -> (String, Self::Output);
[INFO] [stdout]   |                                        ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `String` in this scope
[INFO] [stdout]   --> hdl/src/ops/op_types.rs:20:40
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn execute_with_metadata(self) -> (String, Self::Output) {
[INFO] [stdout]    |                                        ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `String` in this scope
[INFO] [stdout]   --> hdl/src/ops/add.rs:30:40
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn execute_with_metadata(self) -> (String, Self::Output) {
[INFO] [stdout]    |                                        ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `String` in this scope
[INFO] [stdout]   --> hdl/src/ops/imm.rs:24:40
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn execute_with_metadata(self) -> (String, Self::Output) {
[INFO] [stdout]    |                                        ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Box` in this scope
[INFO] [stdout]    --> hdl/src/wires/conversions.rs:285:27
[INFO] [stdout]     |
[INFO] [stdout] 285 |     fn le_bytes(&self) -> Box<[u8]>;
[INFO] [stdout]     |                           ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Box` in this scope
[INFO] [stdout]    --> hdl/src/wires/conversions.rs:166:35
[INFO] [stdout]     |
[INFO] [stdout] 166 |             fn le_bytes(&self) -> Box<[u8]> {
[INFO] [stdout]     |                                   ^^^ not found in this scope
[INFO] [stdout] ...
[INFO] [stdout] 312 | impl_for_size!(_u8, u8, FitsInU8);
[INFO] [stdout]     | ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `into_bits_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Box` in this scope
[INFO] [stdout]    --> hdl/src/wires/conversions.rs:166:35
[INFO] [stdout]     |
[INFO] [stdout] 166 |             fn le_bytes(&self) -> Box<[u8]> {
[INFO] [stdout]     |                                   ^^^ not found in this scope
[INFO] [stdout] ...
[INFO] [stdout] 313 | impl_for_size!(_u16, u16, FitsInU16);
[INFO] [stdout]     | ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `into_bits_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Box` in this scope
[INFO] [stdout]    --> hdl/src/wires/conversions.rs:166:35
[INFO] [stdout]     |
[INFO] [stdout] 166 |             fn le_bytes(&self) -> Box<[u8]> {
[INFO] [stdout]     |                                   ^^^ not found in this scope
[INFO] [stdout] ...
[INFO] [stdout] 314 | impl_for_size!(_u32, u32, FitsInU32);
[INFO] [stdout]     | ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `into_bits_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Box` in this scope
[INFO] [stdout]    --> hdl/src/wires/conversions.rs:166:35
[INFO] [stdout]     |
[INFO] [stdout] 166 |             fn le_bytes(&self) -> Box<[u8]> {
[INFO] [stdout]     |                                   ^^^ not found in this scope
[INFO] [stdout] ...
[INFO] [stdout] 315 | impl_for_size!(_u64, u64, FitsInU64);
[INFO] [stdout]     | ------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `into_bits_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `hdl`
[INFO] [stdout] error[E0412]: cannot find type `Box` in this scope
[INFO] [stdout]    --> hdl/src/wires/conversions.rs:166:35
[INFO] [stdout]     |
[INFO] [stdout] 166 |             fn le_bytes(&self) -> Box<[u8]> {
[INFO] [stdout]     |                                   ^^^ not found in this scope
[INFO] [stdout] ...
[INFO] [stdout] 316 | impl_for_size!(_u128, u128, FitsInU128);
[INFO] [stdout]     | ---------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `into_bits_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] error[E0412]: cannot find type `Box` in this scope
[INFO] [stdout]    --> hdl/src/wires/conversions.rs:166:35
[INFO] [stdout]     |
[INFO] [stdout] 166 |             fn le_bytes(&self) -> Box<[u8]> {
[INFO] [stdout]     |                                   ^^^ not found in this scope
[INFO] [stdout] ...
[INFO] [stdout] 318 | into_bits_impl!(usize);
[INFO] [stdout]     | ----------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `into_bits_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] Caused by:
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> hdl/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(const_generics/*, maybe_uninit_slice*/)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name hdl hdl/src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern repeat_macros=/opt/rustwide/target/debug/deps/librepeat_macros-d63a8020cf834b2c.so --extern static_assertions=/opt/rustwide/target/debug/deps/libstatic_assertions-167f68350993c04d.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> hdl/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(const_fn)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 20 previous errors; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "07f514eb6eedb94c76ce6075db13ec0f7ec763bc495d413530f1a1a7178a9338", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07f514eb6eedb94c76ce6075db13ec0f7ec763bc495d413530f1a1a7178a9338", kill_on_drop: false }`
[INFO] [stdout] 07f514eb6eedb94c76ce6075db13ec0f7ec763bc495d413530f1a1a7178a9338
