[INFO] cloning repository https://github.com/FlenderGit/cobalt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FlenderGit/cobalt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFlenderGit%2Fcobalt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFlenderGit%2Fcobalt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2b7d7f2c8e456867b0cf2588fa8a54491d0541ce
[INFO] checking FlenderGit/cobalt against c60b92c03ca8a3b101eb9d57f51e2232690638c7 for pr-164148-crater-rollup
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFlenderGit%2Fcobalt" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/FlenderGit/cobalt
[INFO] finished tweaking git repo https://github.com/FlenderGit/cobalt
[INFO] tweaked toml for git repo https://github.com/FlenderGit/cobalt written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/FlenderGit/cobalt on toolchain c60b92c03ca8a3b101eb9d57f51e2232690638c7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/FlenderGit/cobalt already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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] 6c247f9398cbe46a123338f03ce171f059fdc696f8feccc679544215d36fe0f4
[INFO] running `Command { std: "docker" "start" "6c247f9398cbe46a123338f03ce171f059fdc696f8feccc679544215d36fe0f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c247f9398cbe46a123338f03ce171f059fdc696f8feccc679544215d36fe0f4", 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" "6c247f9398cbe46a123338f03ce171f059fdc696f8feccc679544215d36fe0f4" "/opt/rustwide/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c247f9398cbe46a123338f03ce171f059fdc696f8feccc679544215d36fe0f4", 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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "6c247f9398cbe46a123338f03ce171f059fdc696f8feccc679544215d36fe0f4" "/opt/rustwide/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking smallvec v1.15.1
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[INFO] [stderr]     Checking cobalt-protocol v0.1.0 (/opt/rustwide/workdir/cobalt-protocol)
[INFO] [stdout] warning: trait `ToPacket` is never used
[INFO] [stdout]   --> cobalt-protocol/src/packet.rs:57:7
[INFO] [stdout]    |
[INFO] [stdout] 57 | trait ToPacket {
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ToPacket` is never used
[INFO] [stdout]   --> cobalt-protocol/src/packet.rs:57:7
[INFO] [stdout]    |
[INFO] [stdout] 57 | trait ToPacket {
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `std::io::Error` cobalt_protocol
[INFO] [stdout]   --> cobalt-protocol/src/types/varint.rs:47:28
[INFO] [stdout]    |
[INFO] [stdout] 47 |                 return Err(io::Error::new(io::ErrorKind::UnexpectedEof, "Unexpected EOF").into());
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 47 -                 return Err(io::Error::new(io::ErrorKind::UnexpectedEof, "Unexpected EOF").into());
[INFO] [stdout] 47 +                 return Err(io::Error::new(io::ErrorKind::UnexpectedEof, "Unexpected EOF"));
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 47 -                 return Err(io::Error::new(io::ErrorKind::UnexpectedEof, "Unexpected EOF").into());
[INFO] [stdout] 47 +                 return Err(<std::io::Error as Into<_>>::into(io::Error::new(io::ErrorKind::UnexpectedEof, "Unexpected EOF")));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `std::io::Error` cobalt_protocol
[INFO] [stdout]   --> cobalt-protocol/src/types/varint.rs:47:28
[INFO] [stdout]    |
[INFO] [stdout] 47 |                 return Err(io::Error::new(io::ErrorKind::UnexpectedEof, "Unexpected EOF").into());
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 47 -                 return Err(io::Error::new(io::ErrorKind::UnexpectedEof, "Unexpected EOF").into());
[INFO] [stdout] 47 +                 return Err(io::Error::new(io::ErrorKind::UnexpectedEof, "Unexpected EOF"));
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 47 -                 return Err(io::Error::new(io::ErrorKind::UnexpectedEof, "Unexpected EOF").into());
[INFO] [stdout] 47 +                 return Err(<std::io::Error as Into<_>>::into(io::Error::new(io::ErrorKind::UnexpectedEof, "Unexpected EOF")));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cobalt-protocol` (lib test) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `cobalt-protocol` (lib) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: unused dependency `derive-new`
[INFO] [stderr]   --> cobalt-protocol/Cargo.toml:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | derive-new = { workspace = true }
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `derive-new`
[INFO] [stderr] warning: `cobalt-protocol` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "inspect" "6c247f9398cbe46a123338f03ce171f059fdc696f8feccc679544215d36fe0f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c247f9398cbe46a123338f03ce171f059fdc696f8feccc679544215d36fe0f4", kill_on_drop: false }`
[INFO] [stdout] 6c247f9398cbe46a123338f03ce171f059fdc696f8feccc679544215d36fe0f4
