[INFO] cloning repository https://github.com/g33kidd/Hut
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/g33kidd/Hut" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fg33kidd%2FHut", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fg33kidd%2FHut'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 157d0e892cd6e058e34dba16d4a700b82f232804
[INFO] documenting g33kidd/Hut against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fg33kidd%2FHut" "/workspace/builds/worker-28/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-28/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/g33kidd/Hut on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/g33kidd/Hut
[INFO] finished tweaking git repo https://github.com/g33kidd/Hut
[INFO] tweaked toml for git repo https://github.com/g33kidd/Hut written to /workspace/builds/worker-28/source/Cargo.toml
[INFO] crate git repo https://github.com/g33kidd/Hut already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 59220c05a8ef7be3af00714ba300dd47b49a8ad310c080e7f5e9232615e31e5b
[INFO] running `Command { std: "docker" "start" "-a" "59220c05a8ef7be3af00714ba300dd47b49a8ad310c080e7f5e9232615e31e5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "59220c05a8ef7be3af00714ba300dd47b49a8ad310c080e7f5e9232615e31e5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59220c05a8ef7be3af00714ba300dd47b49a8ad310c080e7f5e9232615e31e5b", kill_on_drop: false }`
[INFO] [stdout] 59220c05a8ef7be3af00714ba300dd47b49a8ad310c080e7f5e9232615e31e5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a11f9f4fb0b04e42159b857c5d6fcf72f4a866267642f8f8dbd37a9ccd3bf559
[INFO] running `Command { std: "docker" "start" "-a" "a11f9f4fb0b04e42159b857c5d6fcf72f4a866267642f8f8dbd37a9ccd3bf559", kill_on_drop: false }`
[INFO] [stderr]  Documenting Hut v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `regex`
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate regex;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::io::File`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ no `File` in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Show` in this scope
[INFO] [stdout]  --> src/abs.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[derive(Show, Clone)]
[INFO] [stdout]   |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Show` in this scope
[INFO] [stdout]  --> src/abs.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[derive(Show, Clone)]
[INFO] [stdout]   |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Show` in this scope
[INFO] [stdout]   --> src/abs.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[derive(Show, Clone)]
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Show` in this scope
[INFO] [stdout]  --> src/parser.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[derive(Show)]
[INFO] [stdout]   |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Show` in this scope
[INFO] [stdout]  --> src/eval.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[derive(Show)]
[INFO] [stdout]   |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `int` in this scope
[INFO] [stdout]   --> src/abs.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     LitInt(int),
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            not found in this scope
[INFO] [stdout]    |            help: perhaps you intended to use this type: `i32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Regex` in this scope
[INFO] [stdout]   --> src/parser.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     regex: Regex,
[INFO] [stdout]    |            ^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Captures` in this scope
[INFO] [stdout]   --> src/parser.rs:82:27
[INFO] [stdout]    |
[INFO] [stdout] 82 |     fn vardef(&self, cap: Captures) -> Stm {
[INFO] [stdout]    |                           ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Captures` in this scope
[INFO] [stdout]   --> src/parser.rs:88:27
[INFO] [stdout]    |
[INFO] [stdout] 88 |     fn assign(&self, cap: Captures) -> Stm {
[INFO] [stdout]    |                           ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Captures` in this scope
[INFO] [stdout]    --> src/parser.rs:113:23
[INFO] [stdout]     |
[INFO] [stdout] 113 |     fn id(&self, cap: Captures) -> Expr {
[INFO] [stdout]     |                       ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Captures` in this scope
[INFO] [stdout]    --> src/parser.rs:118:27
[INFO] [stdout]     |
[INFO] [stdout] 118 |     fn litint(&self, cap: Captures) -> Expr {
[INFO] [stdout]     |                           ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Captures` in this scope
[INFO] [stdout]    --> src/parser.rs:123:24
[INFO] [stdout]     |
[INFO] [stdout] 123 |     fn neg(&self, cap: Captures) -> Expr {
[INFO] [stdout]     |                        ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Captures` in this scope
[INFO] [stdout]    --> src/parser.rs:128:25
[INFO] [stdout]     |
[INFO] [stdout] 128 |     fn plus(&self, cap: Captures) -> Expr {
[INFO] [stdout]     |                         ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Captures` in this scope
[INFO] [stdout]    --> src/parser.rs:134:26
[INFO] [stdout]     |
[INFO] [stdout] 134 |     fn minus(&self, cap: Captures) -> Expr {
[INFO] [stdout]     |                          ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Captures` in this scope
[INFO] [stdout]    --> src/parser.rs:140:27
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn divide(&self, cap: Captures) -> Expr {
[INFO] [stdout]     |                           ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Captures` in this scope
[INFO] [stdout]    --> src/parser.rs:146:29
[INFO] [stdout]     |
[INFO] [stdout] 146 |     fn multiply(&self, cap: Captures) -> Expr {
[INFO] [stdout]     |                             ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `int` in this scope
[INFO] [stdout]  --> src/eval.rs:9:28
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Env(HashMap<String, int>);
[INFO] [stdout]   |                            ^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: perhaps you intended to use this type
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Env(HashMap<String, i32>);
[INFO] [stdout]   |                            ~~~
[INFO] [stdout] help: you might be missing a type parameter
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Env<int>(HashMap<String, int>);
[INFO] [stdout]   |           +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `int` in this scope
[INFO] [stdout]   --> src/eval.rs:17:42
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn add(&mut self, id: String, value: int) {
[INFO] [stdout]    |                                          ^^^
[INFO] [stdout]    |                                          |
[INFO] [stdout]    |                                          not found in this scope
[INFO] [stdout]    |                                          help: perhaps you intended to use this type: `i32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `int` in this scope
[INFO] [stdout]   --> src/eval.rs:22:40
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn lookup(&mut self, id:String) -> int {
[INFO] [stdout]    |                                        ^^^
[INFO] [stdout]    |                                        |
[INFO] [stdout]    |                                        not found in this scope
[INFO] [stdout]    |                                        help: perhaps you intended to use this type: `i32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `int` in this scope
[INFO] [stdout]   --> src/eval.rs:54:39
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn eval(&mut self, expr: Expr) -> int {
[INFO] [stdout]    |                                       ^^^
[INFO] [stdout]    |                                       |
[INFO] [stdout]    |                                       not found in this scope
[INFO] [stdout]    |                                       help: perhaps you intended to use this type: `i32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: box expression syntax is experimental; you can call `Box::new` instead
[INFO] [stdout]    --> src/parser.rs:125:20
[INFO] [stdout]     |
[INFO] [stdout] 125 |         return Neg(box e);
[INFO] [stdout]     |                    ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #49733 <https://github.com/rust-lang/rust/issues/49733> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: box expression syntax is experimental; you can call `Box::new` instead
[INFO] [stdout]    --> src/parser.rs:131:21
[INFO] [stdout]     |
[INFO] [stdout] 131 |         return Plus(box e1, box e2);
[INFO] [stdout]     |                     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #49733 <https://github.com/rust-lang/rust/issues/49733> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: box expression syntax is experimental; you can call `Box::new` instead
[INFO] [stdout]    --> src/parser.rs:131:29
[INFO] [stdout]     |
[INFO] [stdout] 131 |         return Plus(box e1, box e2);
[INFO] [stdout]     |                             ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #49733 <https://github.com/rust-lang/rust/issues/49733> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: box expression syntax is experimental; you can call `Box::new` instead
[INFO] [stdout]    --> src/parser.rs:137:22
[INFO] [stdout]     |
[INFO] [stdout] 137 |         return Minus(box e1, box e2);
[INFO] [stdout]     |                      ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #49733 <https://github.com/rust-lang/rust/issues/49733> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: box expression syntax is experimental; you can call `Box::new` instead
[INFO] [stdout]    --> src/parser.rs:137:30
[INFO] [stdout]     |
[INFO] [stdout] 137 |         return Minus(box e1, box e2);
[INFO] [stdout]     |                              ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #49733 <https://github.com/rust-lang/rust/issues/49733> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: box expression syntax is experimental; you can call `Box::new` instead
[INFO] [stdout]    --> src/parser.rs:143:23
[INFO] [stdout]     |
[INFO] [stdout] 143 |         return Divide(box e1, box e2);
[INFO] [stdout]     |                       ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #49733 <https://github.com/rust-lang/rust/issues/49733> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: box expression syntax is experimental; you can call `Box::new` instead
[INFO] [stdout]    --> src/parser.rs:143:31
[INFO] [stdout]     |
[INFO] [stdout] 143 |         return Divide(box e1, box e2);
[INFO] [stdout]     |                               ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #49733 <https://github.com/rust-lang/rust/issues/49733> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: box expression syntax is experimental; you can call `Box::new` instead
[INFO] [stdout]    --> src/parser.rs:149:25
[INFO] [stdout]     |
[INFO] [stdout] 149 |         return Multiply(box e1, box e2);
[INFO] [stdout]     |                         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #49733 <https://github.com/rust-lang/rust/issues/49733> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: box expression syntax is experimental; you can call `Box::new` instead
[INFO] [stdout]    --> src/parser.rs:149:33
[INFO] [stdout]     |
[INFO] [stdout] 149 |         return Multiply(box e1, box e2);
[INFO] [stdout]     |                                 ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #49733 <https://github.com/rust-lang/rust/issues/49733> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: box pattern syntax is experimental
[INFO] [stdout]   --> src/eval.rs:58:17
[INFO] [stdout]    |
[INFO] [stdout] 58 |             Neg(box e) => - self.eval(e),
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: box pattern syntax is experimental
[INFO] [stdout]   --> src/eval.rs:59:18
[INFO] [stdout]    |
[INFO] [stdout] 59 |             Plus(box e1, box e2) => self.eval(e1) + self.eval(e2),
[INFO] [stdout]    |                  ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: box pattern syntax is experimental
[INFO] [stdout]   --> src/eval.rs:59:26
[INFO] [stdout]    |
[INFO] [stdout] 59 |             Plus(box e1, box e2) => self.eval(e1) + self.eval(e2),
[INFO] [stdout]    |                          ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: box pattern syntax is experimental
[INFO] [stdout]   --> src/eval.rs:60:19
[INFO] [stdout]    |
[INFO] [stdout] 60 |             Minus(box e1, box e2) => self.eval(e1) - self.eval(e2),
[INFO] [stdout]    |                   ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: box pattern syntax is experimental
[INFO] [stdout]   --> src/eval.rs:60:27
[INFO] [stdout]    |
[INFO] [stdout] 60 |             Minus(box e1, box e2) => self.eval(e1) - self.eval(e2),
[INFO] [stdout]    |                           ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: box pattern syntax is experimental
[INFO] [stdout]   --> src/eval.rs:61:20
[INFO] [stdout]    |
[INFO] [stdout] 61 |             Divide(box e1, box e2) => self.eval(e1) / self.eval(e2),
[INFO] [stdout]    |                    ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: box pattern syntax is experimental
[INFO] [stdout]   --> src/eval.rs:61:28
[INFO] [stdout]    |
[INFO] [stdout] 61 |             Divide(box e1, box e2) => self.eval(e1) / self.eval(e2),
[INFO] [stdout]    |                            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: box pattern syntax is experimental
[INFO] [stdout]   --> src/eval.rs:62:22
[INFO] [stdout]    |
[INFO] [stdout] 62 |             Multiply(box e1, box e2) => self.eval(e1) * self.eval(e2),
[INFO] [stdout]    |                      ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: box pattern syntax is experimental
[INFO] [stdout]   --> src/eval.rs:62:30
[INFO] [stdout]    |
[INFO] [stdout] 62 |             Multiply(box e1, box e2) => self.eval(e1) * self.eval(e2),
[INFO] [stdout]    |                              ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 41 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0432, E0463, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `Hut`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name Hut src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=4cfe946a3d5aa658 -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.0.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "a11f9f4fb0b04e42159b857c5d6fcf72f4a866267642f8f8dbd37a9ccd3bf559", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a11f9f4fb0b04e42159b857c5d6fcf72f4a866267642f8f8dbd37a9ccd3bf559", kill_on_drop: false }`
[INFO] [stdout] a11f9f4fb0b04e42159b857c5d6fcf72f4a866267642f8f8dbd37a9ccd3bf559