[INFO] fetching crate verlib 0.1.0...
[INFO] checking verlib-0.1.0 against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] extracting crate verlib 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate verlib 0.1.0
[INFO] finished tweaking crates.io crate verlib 0.1.0
[INFO] tweaked toml for crates.io crate verlib 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate verlib 0.1.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 939c991fb76be253527b37948a24d50e35cf8b42ca815a0f81a1b7017f3e63c8
[INFO] running `Command { std: "docker" "start" "-a" "939c991fb76be253527b37948a24d50e35cf8b42ca815a0f81a1b7017f3e63c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "939c991fb76be253527b37948a24d50e35cf8b42ca815a0f81a1b7017f3e63c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "939c991fb76be253527b37948a24d50e35cf8b42ca815a0f81a1b7017f3e63c8", kill_on_drop: false }`
[INFO] [stdout] 939c991fb76be253527b37948a24d50e35cf8b42ca815a0f81a1b7017f3e63c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 814b0e377714280d16537a06e4bca11300c02887d9cd0e97651ee4a5aa97d056
[INFO] running `Command { std: "docker" "start" "-a" "814b0e377714280d16537a06e4bca11300c02887d9cd0e97651ee4a5aa97d056", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]     Checking verlib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: struct `DebianVersion` is never constructed
[INFO] [stdout]   --> src/debian.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct DebianVersion(Version);
[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 `verlib` (lib test) due to 2 previous errors; 2 warnings emitted
[INFO] [stdout] error: struct `PythonVersion` is never constructed
[INFO] [stdout]   --> src/python.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct PythonVersion(String);
[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] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/python.rs:14:26
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct PythonVersion(String);
[INFO] [stdout]    |            ------------- ^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `PythonVersion` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_semver_lossy` is never used
[INFO] [stdout]   --> src/semver.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | trait ToSemver {
[INFO] [stdout]    |       -------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 57 |     fn to_semver_lossy(&self) -> SemverVersion;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `DebianVersion` is never constructed
[INFO] [stdout]   --> src/debian.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct DebianVersion(Version);
[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] [stdout] error: struct `PythonVersion` is never constructed
[INFO] [stdout]   --> src/python.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct PythonVersion(String);
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/python.rs:14:26
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct PythonVersion(String);
[INFO] [stdout]    |            ------------- ^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `PythonVersion` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_semver_lossy` is never used
[INFO] [stdout]   --> src/semver.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | trait ToSemver {
[INFO] [stdout]    |       -------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 57 |     fn to_semver_lossy(&self) -> SemverVersion;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `verlib` (lib) due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "814b0e377714280d16537a06e4bca11300c02887d9cd0e97651ee4a5aa97d056", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "814b0e377714280d16537a06e4bca11300c02887d9cd0e97651ee4a5aa97d056", kill_on_drop: false }`
[INFO] [stdout] 814b0e377714280d16537a06e4bca11300c02887d9cd0e97651ee4a5aa97d056
