[INFO] fetching crate goff 0.1.0...
[INFO] testing goff-0.1.0 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate goff 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate goff 0.1.0
[INFO] finished tweaking crates.io crate goff 0.1.0
[INFO] tweaked toml for crates.io crate goff 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate goff 0.1.0 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 7 packages to highest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] f6facbc6b67f33f3d2f39f93e4f552138ded1aafb689ad3101c662d694c3552a
[INFO] running `Command { std: "docker" "start" "f6facbc6b67f33f3d2f39f93e4f552138ded1aafb689ad3101c662d694c3552a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6facbc6b67f33f3d2f39f93e4f552138ded1aafb689ad3101c662d694c3552a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f6facbc6b67f33f3d2f39f93e4f552138ded1aafb689ad3101c662d694c3552a" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6facbc6b67f33f3d2f39f93e4f552138ded1aafb689ad3101c662d694c3552a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f6facbc6b67f33f3d2f39f93e4f552138ded1aafb689ad3101c662d694c3552a" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.107
[INFO] [stderr]    Compiling quote v1.0.47
[INFO] [stderr]    Compiling serde_core v1.0.229
[INFO] [stderr]    Compiling serde v1.0.229
[INFO] [stderr]    Compiling syn v3.0.9
[INFO] [stderr]    Compiling serde_derive v1.0.229
[INFO] [stderr]    Compiling goff v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find type `NoneError` in module `option`
[INFO] [stdout]   --> src/error.rs:56:28
[INFO] [stdout]    |
[INFO] [stdout] 56 | impl convert::From<option::NoneError> for Error
[INFO] [stdout]    |                            ^^^^^^^^^ not found in `option`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `NoneError` in module `option`
[INFO] [stdout]   --> src/error.rs:58:27
[INFO] [stdout]    |
[INFO] [stdout] 58 |   fn from(_error: option::NoneError) -> Self
[INFO] [stdout]    |                           ^^^^^^^^^ not found 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:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(try_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: feature `try_trait` has been renamed to `try_trait_v2`
[INFO] [stdout]  --> src/lib.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(try_trait)]
[INFO] [stdout]   |            ^^^^^^^^^
[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/serialize.rs:41:49
[INFO] [stdout]    |
[INFO] [stdout] 38 |   fn next_char(&mut self) -> Result<char>
[INFO] [stdout]    |   --------------------------------------- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 41 |     self.input = self.input.get(ch.len_utf8()..)?;
[INFO] [stdout]    |                                                 ^ use `.ok_or(...)?` to provide an error compatible with `std::result::Result<char, error::Error>`
[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/serialize.rs:50:49
[INFO] [stdout]    |
[INFO] [stdout] 47 |   fn parse_bool(&mut self) -> Result<bool>
[INFO] [stdout]    |   ---------------------------------------- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 50 |       self.input = self.input.get("yes".len()..)?;
[INFO] [stdout]    |                                                 ^ use `.ok_or(...)?` to provide an error compatible with `std::result::Result<bool, error::Error>`
[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/serialize.rs:53:48
[INFO] [stdout]    |
[INFO] [stdout] 47 |   fn parse_bool(&mut self) -> Result<bool>
[INFO] [stdout]    |   ---------------------------------------- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 53 |       self.input = self.input.get("no".len()..)?;
[INFO] [stdout]    |                                                ^ use `.ok_or(...)?` to provide an error compatible with `std::result::Result<bool, error::Error>`
[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/serialize.rs:74:43
[INFO] [stdout]    |
[INFO] [stdout] 61 | /   fn parse_unsigned<T>(&mut self) -> Result<T>
[INFO] [stdout] 62 | |     where T: AddAssign<T> + MulAssign<T> + From<u8>,
[INFO] [stdout]    | |____________________________________________________- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 74 |             self.input = self.input.get(1..)?;
[INFO] [stdout]    |                                             ^ use `.ok_or(...)?` to provide an error compatible with `std::result::Result<T, error::Error>`
[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/serialize.rs:107:41
[INFO] [stdout]     |
[INFO] [stdout]  89 | /   fn parse_signed<T>(&mut self) -> Result<T>
[INFO] [stdout]  90 | |     where T: Neg<Output = T> + AddAssign<T> + MulAssign<T> + From<i8>,
[INFO] [stdout]     | |______________________________________________________________________- this function returns a `Result`
[INFO] [stdout] ...
[INFO] [stdout] 107 |           self.input = self.input.get(1..)?;
[INFO] [stdout]     |                                           ^ use `.ok_or(...)?` to provide an error compatible with `std::result::Result<T, error::Error>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0425, E0554, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `goff` (lib) due to 9 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "f6facbc6b67f33f3d2f39f93e4f552138ded1aafb689ad3101c662d694c3552a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6facbc6b67f33f3d2f39f93e4f552138ded1aafb689ad3101c662d694c3552a", kill_on_drop: false }`
[INFO] [stdout] f6facbc6b67f33f3d2f39f93e4f552138ded1aafb689ad3101c662d694c3552a
