[INFO] cloning repository https://github.com/lccc-project/lccc-driver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lccc-project/lccc-driver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flccc-project%2Flccc-driver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flccc-project%2Flccc-driver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8c5796f93f2b8ce26666ee753da903385a275d8e
[INFO] checking lccc-project/lccc-driver against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flccc-project%2Flccc-driver" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lccc-project/lccc-driver
[INFO] finished tweaking git repo https://github.com/lccc-project/lccc-driver
[INFO] tweaked toml for git repo https://github.com/lccc-project/lccc-driver written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lccc-project/lccc-driver on toolchain 0611f7de057c584b8771102fde7aed6c70c71d3b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lccc-project/lccc-driver 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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e586ec68783723a4f79d211c336194f41913e10912175c64f21838037ecf18b8
[INFO] running `Command { std: "docker" "start" "-a" "e586ec68783723a4f79d211c336194f41913e10912175c64f21838037ecf18b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e586ec68783723a4f79d211c336194f41913e10912175c64f21838037ecf18b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e586ec68783723a4f79d211c336194f41913e10912175c64f21838037ecf18b8", kill_on_drop: false }`
[INFO] [stdout] e586ec68783723a4f79d211c336194f41913e10912175c64f21838037ecf18b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d4dc3b87a95f148e83104c587ac5ff12f4aff6eaaa7e26f6f2cc7b876815e76
[INFO] running `Command { std: "docker" "start" "-a" "7d4dc3b87a95f148e83104c587ac5ff12f4aff6eaaa7e26f6f2cc7b876815e76", kill_on_drop: false }`
[INFO] [stderr]    Compiling target-tuple-pieces v0.16.1
[INFO] [stderr]    Compiling sysname v0.1.0 (https://github.com/chorman0773/uname.git#deffb849)
[INFO] [stderr]    Compiling cfg-match v0.2.1
[INFO] [stderr]    Compiling bytemuck v1.25.0
[INFO] [stderr]    Compiling cc v1.2.61
[INFO] [stderr]     Checking winnow v1.0.2
[INFO] [stderr]     Checking hashbrown v0.17.0
[INFO] [stderr]     Checking serde_spanned v1.1.1
[INFO] [stderr]     Checking toml_datetime v1.1.1+spec-1.1.0
[INFO] [stderr]     Checking generic-detect v0.1.0 (https://github.com/LiliumOS/generic-detect.git#64156bed)
[INFO] [stderr]     Checking error-repr v0.1.0
[INFO] [stderr]    Compiling target-tuples-macro v0.2.0
[INFO] [stderr]     Checking indexmap v2.14.0
[INFO] [stderr]     Checking toml_parser v1.1.2+spec-1.1.0
[INFO] [stderr]    Compiling target-tuples v0.16.1
[INFO] [stderr]     Checking lccc-targets v0.1.0 (https://github.com/lccc-project/lccc-target.git#2f896ecb)
[INFO] [stderr]     Checking toml v1.1.2+spec-1.1.0
[INFO] [stderr]    Compiling errno-sys v0.2.0
[INFO] [stderr]    Compiling lccc-driver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: struct `Host` is never constructed
[INFO] [stdout]   --> src/host.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub struct Host(OnceCell<Uname>); 
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lccc-driver` (lib test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: struct `Host` is never constructed
[INFO] [stdout]   --> src/host.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub struct Host(OnceCell<Uname>); 
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lccc-driver` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "7d4dc3b87a95f148e83104c587ac5ff12f4aff6eaaa7e26f6f2cc7b876815e76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d4dc3b87a95f148e83104c587ac5ff12f4aff6eaaa7e26f6f2cc7b876815e76", kill_on_drop: false }`
[INFO] [stdout] 7d4dc3b87a95f148e83104c587ac5ff12f4aff6eaaa7e26f6f2cc7b876815e76
