[INFO] cloning repository https://github.com/bhjoellund/fibver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bhjoellund/fibver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbhjoellund%2Ffibver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbhjoellund%2Ffibver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e3927920dae762cd8c93a574d8901e5133efcf6a
[INFO] checking bhjoellund/fibver against 1.55.0 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbhjoellund%2Ffibver" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bhjoellund/fibver on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bhjoellund/fibver
[INFO] finished tweaking git repo https://github.com/bhjoellund/fibver
[INFO] tweaked toml for git repo https://github.com/bhjoellund/fibver written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/bhjoellund/fibver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c98c9e9d9cc11e5f5d14790252f1b038d05308ac5255dd7fc22fc85f82e0ba9a
[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" "c98c9e9d9cc11e5f5d14790252f1b038d05308ac5255dd7fc22fc85f82e0ba9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c98c9e9d9cc11e5f5d14790252f1b038d05308ac5255dd7fc22fc85f82e0ba9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c98c9e9d9cc11e5f5d14790252f1b038d05308ac5255dd7fc22fc85f82e0ba9a", kill_on_drop: false }`
[INFO] [stdout] c98c9e9d9cc11e5f5d14790252f1b038d05308ac5255dd7fc22fc85f82e0ba9a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f0fd06b2975d46053153e1557aa5b911183c99aa65d21326860f24f8e457612
[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" "8f0fd06b2975d46053153e1557aa5b911183c99aa65d21326860f24f8e457612", kill_on_drop: false }`
[INFO] [stderr]     Checking regex v1.1.9
[INFO] [stderr]     Checking fibver v1.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0412]: cannot find type `NoneError` in module `std::option`
[INFO] [stdout]   --> src/models.rs:10:38
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl std::convert::From<std::option::NoneError> for AppErrors {
[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/models.rs:11:29
[INFO] [stdout]    |
[INFO] [stdout] 11 |     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 stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(try_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(int_error_internals)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `NoneError` in module `std::option`
[INFO] [stdout]   --> src/models.rs:10:38
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl std::convert::From<std::option::NoneError> for AppErrors {
[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/models.rs:11:29
[INFO] [stdout]    |
[INFO] [stdout] 11 |     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 stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(try_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(int_error_internals)]
[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/args.rs:13:45
[INFO] [stdout]     |
[INFO] [stdout] 12  | / fn parse_version(version: &str) -> Result<Version, AppErrors> {
[INFO] [stdout] 13  | |     let captures = VERSION.captures(version)?;
[INFO] [stdout]     | |                                             ^ use `.ok_or(...)?` to provide an error compatible with `Result<Version, AppErrors>`
[INFO] [stdout] 14  | |     let major: i32 = (&captures["major"]).parse().unwrap();
[INFO] [stdout] 15  | |     let minor: i32 = (&captures["minor"]).parse().unwrap();
[INFO] [stdout] ...   |
[INFO] [stdout] 22  | |     })
[INFO] [stdout] 23  | | }
[INFO] [stdout]     | |_- this function returns a `Result`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<Option<Infallible>>` is not implemented for `Result<Version, AppErrors>`
[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/args.rs:13:45
[INFO] [stdout]     |
[INFO] [stdout] 12  | / fn parse_version(version: &str) -> Result<Version, AppErrors> {
[INFO] [stdout] 13  | |     let captures = VERSION.captures(version)?;
[INFO] [stdout]     | |                                             ^ use `.ok_or(...)?` to provide an error compatible with `Result<Version, AppErrors>`
[INFO] [stdout] 14  | |     let major: i32 = (&captures["major"]).parse().unwrap();
[INFO] [stdout] 15  | |     let minor: i32 = (&captures["minor"]).parse().unwrap();
[INFO] [stdout] ...   |
[INFO] [stdout] 22  | |     })
[INFO] [stdout] 23  | | }
[INFO] [stdout]     | |_- this function returns a `Result`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<Option<Infallible>>` is not implemented for `Result<Version, AppErrors>`
[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] [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 `fibver` due to 6 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "8f0fd06b2975d46053153e1557aa5b911183c99aa65d21326860f24f8e457612", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f0fd06b2975d46053153e1557aa5b911183c99aa65d21326860f24f8e457612", kill_on_drop: false }`
[INFO] [stdout] 8f0fd06b2975d46053153e1557aa5b911183c99aa65d21326860f24f8e457612
