[INFO] cloning repository https://github.com/imtira/wkv
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/imtira/wkv" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimtira%2Fwkv", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimtira%2Fwkv'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 23794966f95eea3961c6aec7eae923743a8b75bb
[INFO] testing imtira/wkv against beta-2021-08-01 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimtira%2Fwkv" "/workspace/builds/worker-40/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-40/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/imtira/wkv 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/imtira/wkv
[INFO] finished tweaking git repo https://github.com/imtira/wkv
[INFO] tweaked toml for git repo https://github.com/imtira/wkv written to /workspace/builds/worker-40/source/Cargo.toml
[INFO] crate git repo https://github.com/imtira/wkv 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-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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] 491d2468fb99207889b2d4732910d295c6e9ceb3b02d751babb91931200fb82d
[INFO] running `Command { std: "docker" "start" "-a" "491d2468fb99207889b2d4732910d295c6e9ceb3b02d751babb91931200fb82d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "491d2468fb99207889b2d4732910d295c6e9ceb3b02d751babb91931200fb82d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "491d2468fb99207889b2d4732910d295c6e9ceb3b02d751babb91931200fb82d", kill_on_drop: false }`
[INFO] [stdout] 491d2468fb99207889b2d4732910d295c6e9ceb3b02d751babb91931200fb82d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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" "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" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 663bd36651b9770c6d4d50f8f1f49cc575dbd319ba5ad9ea81ae747ae8e900a8
[INFO] running `Command { std: "docker" "start" "-a" "663bd36651b9770c6d4d50f8f1f49cc575dbd319ba5ad9ea81ae747ae8e900a8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling wkv v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0412]: cannot find type `NoneError` in module `std::option`
[INFO] [stdout]   --> src/lib.rs:36:38
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl std::convert::From<std::option::NoneError> for WKVError
[INFO] [stdout]    |                                      ^^^^^^^^^ not found in `std::option`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `NoneError` in module `std::option`
[INFO] [stdout]   --> src/lib.rs:39:27
[INFO] [stdout]    |
[INFO] [stdout] 39 |   fn from(_: std::option::NoneError) -> Self
[INFO] [stdout]    |                           ^^^^^^^^^ not found in `std::option`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![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 function that returns `Result`
[INFO] [stdout]    --> src/lib.rs:91:23
[INFO] [stdout]     |
[INFO] [stdout] 89  | / pub fn validate_windows95(key: &'_ str) -> Result<Key, WKVError>
[INFO] [stdout] 90  | | {
[INFO] [stdout] 91  | |   match key.get(0..=2)? {
[INFO] [stdout]     | |                       ^ use `.ok_or(...)?` to provide an error compatible with `Result<Key, WKVError>`
[INFO] [stdout] 92  | |     "333" | "444" | "555" | "666" | "777" | "888" | "999" => Err(WKVError::InvalidDigitPosition),
[INFO] [stdout] ...   |
[INFO] [stdout] 99  | |   }
[INFO] [stdout] 100 | | }
[INFO] [stdout]     | |_- this function returns a `Result`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<Option<Infallible>>` is not implemented for `Result<Key, WKVError>`
[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 function that returns `Result`
[INFO] [stdout]    --> src/lib.rs:94:38
[INFO] [stdout]     |
[INFO] [stdout] 89  | / pub fn validate_windows95(key: &'_ str) -> Result<Key, WKVError>
[INFO] [stdout] 90  | | {
[INFO] [stdout] 91  | |   match key.get(0..=2)? {
[INFO] [stdout] 92  | |     "333" | "444" | "555" | "666" | "777" | "888" | "999" => Err(WKVError::InvalidDigitPosition),
[INFO] [stdout] 93  | |     _ =>
[INFO] [stdout] 94  | |       if mod7(key.as_bytes().get(4..)?)? {
[INFO] [stdout]     | |                                      ^ use `.ok_or(...)?` to provide an error compatible with `Result<Key, WKVError>`
[INFO] [stdout] ...   |
[INFO] [stdout] 99  | |   }
[INFO] [stdout] 100 | | }
[INFO] [stdout]     | |_- this function returns a `Result`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<Option<Infallible>>` is not implemented for `Result<Key, WKVError>`
[INFO] [stdout] note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0412, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wkv` due to 6 previous errors
[INFO] running `Command { std: "docker" "inspect" "663bd36651b9770c6d4d50f8f1f49cc575dbd319ba5ad9ea81ae747ae8e900a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "663bd36651b9770c6d4d50f8f1f49cc575dbd319ba5ad9ea81ae747ae8e900a8", kill_on_drop: false }`
[INFO] [stdout] 663bd36651b9770c6d4d50f8f1f49cc575dbd319ba5ad9ea81ae747ae8e900a8
