[INFO] cloning repository https://github.com/kirillt/ark-tagger
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kirillt/ark-tagger" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkirillt%2Fark-tagger", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkirillt%2Fark-tagger'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1dd86d732fa4b6c344a87f6acc94f1dc3887950d
[INFO] testing kirillt/ark-tagger against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkirillt%2Fark-tagger" "/workspace/builds/worker-44/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-44/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kirillt/ark-tagger on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kirillt/ark-tagger
[INFO] finished tweaking git repo https://github.com/kirillt/ark-tagger
[INFO] tweaked toml for git repo https://github.com/kirillt/ark-tagger written to /workspace/builds/worker-44/source/Cargo.toml
[INFO] crate git repo https://github.com/kirillt/ark-tagger already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/hecrj/iced.git`
[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 39212c1cd306b864e280d9c0396b67d7e01f1ef3cfcdba53a9d990195e48788a
[INFO] running `Command { std: "docker" "start" "-a" "39212c1cd306b864e280d9c0396b67d7e01f1ef3cfcdba53a9d990195e48788a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "39212c1cd306b864e280d9c0396b67d7e01f1ef3cfcdba53a9d990195e48788a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39212c1cd306b864e280d9c0396b67d7e01f1ef3cfcdba53a9d990195e48788a", kill_on_drop: false }`
[INFO] [stdout] 39212c1cd306b864e280d9c0396b67d7e01f1ef3cfcdba53a9d990195e48788a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 407c77d6537bc33a0a657399eb40c0bc4aa4be6efd1f335404f01f0b15cf6167
[INFO] running `Command { std: "docker" "start" "-a" "407c77d6537bc33a0a657399eb40c0bc4aa4be6efd1f335404f01f0b15cf6167", kill_on_drop: false }`
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[INFO] [stderr]    Compiling iced_native v0.2.1 (https://github.com/hecrj/iced.git#edd01159)
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[INFO] [stderr]    Compiling iced_wgpu v0.2.1 (https://github.com/hecrj/iced.git#edd01159)
[INFO] [stderr]    Compiling smithay-client-toolkit v0.6.6
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[INFO] [stderr]    Compiling winit v0.22.1
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[INFO] [stderr]    Compiling iced_winit v0.1.1 (https://github.com/hecrj/iced.git#edd01159)
[INFO] [stderr]    Compiling iced v0.1.1 (https://github.com/hecrj/iced.git#edd01159)
[INFO] [stderr]    Compiling ark-tagger v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::option::NoneError`
[INFO] [stdout]  --> src/model/id.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | 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 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[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a method that returns `Result`
[INFO] [stdout]   --> src/model/id.rs:32:32
[INFO] [stdout]    |
[INFO] [stdout] 29 | /     fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout] 30 | |         let mut parts = s.split('_');
[INFO] [stdout] 31 | |
[INFO] [stdout] 32 | |         let size = parts.next()?;
[INFO] [stdout]    | |                                ^ use `.ok_or(...)?` to provide an error compatible with `Result<Id, id::ParseError>`
[INFO] [stdout] ...  |
[INFO] [stdout] 38 | |         Ok(Id { size, hash })
[INFO] [stdout] 39 | |     }
[INFO] [stdout]    | |_____- this function returns a `Result`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<Option<Infallible>>` is not implemented for `Result<Id, id::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/model/id.rs:35:32
[INFO] [stdout]    |
[INFO] [stdout] 29 | /     fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout] 30 | |         let mut parts = s.split('_');
[INFO] [stdout] 31 | |
[INFO] [stdout] 32 | |         let size = parts.next()?;
[INFO] [stdout] ...  |
[INFO] [stdout] 35 | |         let hash = parts.next()?;
[INFO] [stdout]    | |                                ^ use `.ok_or(...)?` to provide an error compatible with `Result<Id, id::ParseError>`
[INFO] [stdout] ...  |
[INFO] [stdout] 38 | |         Ok(Id { size, hash })
[INFO] [stdout] 39 | |     }
[INFO] [stdout]    | |_____- this function returns a `Result`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<Option<Infallible>>` is not implemented for `Result<Id, id::ParseError>`
[INFO] [stdout]    = note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[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: could not compile `ark-tagger`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "407c77d6537bc33a0a657399eb40c0bc4aa4be6efd1f335404f01f0b15cf6167", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "407c77d6537bc33a0a657399eb40c0bc4aa4be6efd1f335404f01f0b15cf6167", kill_on_drop: false }`
[INFO] [stdout] 407c77d6537bc33a0a657399eb40c0bc4aa4be6efd1f335404f01f0b15cf6167
