[INFO] cloning repository https://github.com/svartalf/rust-advent-of-code-2017
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/svartalf/rust-advent-of-code-2017" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvartalf%2Frust-advent-of-code-2017", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvartalf%2Frust-advent-of-code-2017'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 43c7b7c4e5fda091ba924f025b3e4b57070ee6bf
[INFO] documenting svartalf/rust-advent-of-code-2017 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%2Fsvartalf%2Frust-advent-of-code-2017" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/svartalf/rust-advent-of-code-2017 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/svartalf/rust-advent-of-code-2017
[INFO] finished tweaking git repo https://github.com/svartalf/rust-advent-of-code-2017
[INFO] tweaked toml for git repo https://github.com/svartalf/rust-advent-of-code-2017 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/svartalf/rust-advent-of-code-2017 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 05a9dc0c71ed1b5263c93b0495ceb8f8d26bc1c351c84038543578fcacea6274
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "05a9dc0c71ed1b5263c93b0495ceb8f8d26bc1c351c84038543578fcacea6274", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "05a9dc0c71ed1b5263c93b0495ceb8f8d26bc1c351c84038543578fcacea6274", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05a9dc0c71ed1b5263c93b0495ceb8f8d26bc1c351c84038543578fcacea6274", kill_on_drop: false }`
[INFO] [stdout] 05a9dc0c71ed1b5263c93b0495ceb8f8d26bc1c351c84038543578fcacea6274
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 3bc4fcb90854bd02a3f62464067bb780033bad45fe83b10be291d5a280626ce7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3bc4fcb90854bd02a3f62464067bb780033bad45fe83b10be291d5a280626ce7", kill_on_drop: false }`
[INFO] [stderr]     Checking aoc2017 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting aoc2017 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::option::NoneError`
[INFO] [stdout]  --> src/days/day08/common.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::option::NoneError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^ no `NoneError` in `option`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(try_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/days/day19/common.rs:124:41
[INFO] [stdout]     |
[INFO] [stdout] 124 | ...                   letter @ 'A'...'Z' => Cell::Letter(letter),
[INFO] [stdout]     |                                   ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::option::NoneError`
[INFO] [stdout]  --> src/days/day08/common.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::option::NoneError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^ no `NoneError` in `option`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(try_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `aoc2017`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name aoc2017 src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/days/day08/common.rs:110:37
[INFO] [stdout]     |
[INFO] [stdout] 108 | /     pub fn from(line: &'l str) -> Result<Self, ParseError> {
[INFO] [stdout] 109 | |         let mut split = line.split_whitespace();
[INFO] [stdout] 110 | |         let register1 = split.next()?;
[INFO] [stdout]     | |                                     ^ use `.ok_or(...)?` to provide an error compatible with `Result<day08::common::Line<'_>, ParseError>`
[INFO] [stdout] 111 | |         let op = Op::new(
[INFO] [stdout] ...   |
[INFO] [stdout] 126 | |         })
[INFO] [stdout] 127 | |     }
[INFO] [stdout]     | |_____- this function returns a `Result`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<Option<Infallible>>` is not implemented for `Result<day08::common::Line<'_>, ParseError>`
[INFO] [stdout] note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/days/day08/common.rs:112:25
[INFO] [stdout]     |
[INFO] [stdout] 108 | /     pub fn from(line: &'l str) -> Result<Self, ParseError> {
[INFO] [stdout] 109 | |         let mut split = line.split_whitespace();
[INFO] [stdout] 110 | |         let register1 = split.next()?;
[INFO] [stdout] 111 | |         let op = Op::new(
[INFO] [stdout] 112 | |             split.next()?,
[INFO] [stdout]     | |                         ^ use `.ok_or(...)?` to provide an error compatible with `Result<day08::common::Line<'_>, ParseError>`
[INFO] [stdout] ...   |
[INFO] [stdout] 126 | |         })
[INFO] [stdout] 127 | |     }
[INFO] [stdout]     | |_____- this function returns a `Result`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<Option<Infallible>>` is not implemented for `Result<day08::common::Line<'_>, ParseError>`
[INFO] [stdout] note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/days/day08/common.rs:113:25
[INFO] [stdout]     |
[INFO] [stdout] 108 | /     pub fn from(line: &'l str) -> Result<Self, ParseError> {
[INFO] [stdout] 109 | |         let mut split = line.split_whitespace();
[INFO] [stdout] 110 | |         let register1 = split.next()?;
[INFO] [stdout] 111 | |         let op = Op::new(
[INFO] [stdout] 112 | |             split.next()?,
[INFO] [stdout] 113 | |             split.next()?,
[INFO] [stdout]     | |                         ^ use `.ok_or(...)?` to provide an error compatible with `Result<day08::common::Line<'_>, ParseError>`
[INFO] [stdout] ...   |
[INFO] [stdout] 126 | |         })
[INFO] [stdout] 127 | |     }
[INFO] [stdout]     | |_____- this function returns a `Result`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<Option<Infallible>>` is not implemented for `Result<day08::common::Line<'_>, ParseError>`
[INFO] [stdout] note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/days/day08/common.rs:115:37
[INFO] [stdout]     |
[INFO] [stdout] 108 | /     pub fn from(line: &'l str) -> Result<Self, ParseError> {
[INFO] [stdout] 109 | |         let mut split = line.split_whitespace();
[INFO] [stdout] 110 | |         let register1 = split.next()?;
[INFO] [stdout] 111 | |         let op = Op::new(
[INFO] [stdout] ...   |
[INFO] [stdout] 115 | |         let register2 = split.nth(1)?;
[INFO] [stdout]     | |                                     ^ use `.ok_or(...)?` to provide an error compatible with `Result<day08::common::Line<'_>, ParseError>`
[INFO] [stdout] ...   |
[INFO] [stdout] 126 | |         })
[INFO] [stdout] 127 | |     }
[INFO] [stdout]     | |_____- this function returns a `Result`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<Option<Infallible>>` is not implemented for `Result<day08::common::Line<'_>, ParseError>`
[INFO] [stdout] note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/days/day08/common.rs:117:25
[INFO] [stdout]     |
[INFO] [stdout] 108 | /     pub fn from(line: &'l str) -> Result<Self, ParseError> {
[INFO] [stdout] 109 | |         let mut split = line.split_whitespace();
[INFO] [stdout] 110 | |         let register1 = split.next()?;
[INFO] [stdout] 111 | |         let op = Op::new(
[INFO] [stdout] ...   |
[INFO] [stdout] 117 | |             split.next()?,
[INFO] [stdout]     | |                         ^ use `.ok_or(...)?` to provide an error compatible with `Result<day08::common::Line<'_>, ParseError>`
[INFO] [stdout] ...   |
[INFO] [stdout] 126 | |         })
[INFO] [stdout] 127 | |     }
[INFO] [stdout]     | |_____- this function returns a `Result`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<Option<Infallible>>` is not implemented for `Result<day08::common::Line<'_>, ParseError>`
[INFO] [stdout] note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]    --> src/days/day08/common.rs:118:25
[INFO] [stdout]     |
[INFO] [stdout] 108 | /     pub fn from(line: &'l str) -> Result<Self, ParseError> {
[INFO] [stdout] 109 | |         let mut split = line.split_whitespace();
[INFO] [stdout] 110 | |         let register1 = split.next()?;
[INFO] [stdout] 111 | |         let op = Op::new(
[INFO] [stdout] ...   |
[INFO] [stdout] 118 | |             split.next()?,
[INFO] [stdout]     | |                         ^ use `.ok_or(...)?` to provide an error compatible with `Result<day08::common::Line<'_>, ParseError>`
[INFO] [stdout] ...   |
[INFO] [stdout] 126 | |         })
[INFO] [stdout] 127 | |     }
[INFO] [stdout]     | |_____- this function returns a `Result`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<Option<Infallible>>` is not implemented for `Result<day08::common::Line<'_>, ParseError>`
[INFO] [stdout] note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 9 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0432, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "3bc4fcb90854bd02a3f62464067bb780033bad45fe83b10be291d5a280626ce7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bc4fcb90854bd02a3f62464067bb780033bad45fe83b10be291d5a280626ce7", kill_on_drop: false }`
[INFO] [stdout] 3bc4fcb90854bd02a3f62464067bb780033bad45fe83b10be291d5a280626ce7
