[INFO] cloning repository https://github.com/lovesegfault/buildkit
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lovesegfault/buildkit" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flovesegfault%2Fbuildkit", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flovesegfault%2Fbuildkit'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0cef343e0f73ece34313d1cfe7af893beb106bc1
[INFO] checking lovesegfault/buildkit against try#6cbf54b1453b438241487f195740266bb9d8c8ba for pr-139587-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flovesegfault%2Fbuildkit" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lovesegfault/buildkit on toolchain 6cbf54b1453b438241487f195740266bb9d8c8ba
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6cbf54b1453b438241487f195740266bb9d8c8ba" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/lovesegfault/buildkit
[INFO] finished tweaking git repo https://github.com/lovesegfault/buildkit
[INFO] tweaked toml for git repo https://github.com/lovesegfault/buildkit written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/lovesegfault/buildkit 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" "+6cbf54b1453b438241487f195740266bb9d8c8ba" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+6cbf54b1453b438241487f195740266bb9d8c8ba" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 588961f1af3cbdf7ac843b9dfddfe17df0a7856a5dd5af7840d0d8df32826c98
[INFO] running `Command { std: "docker" "start" "-a" "588961f1af3cbdf7ac843b9dfddfe17df0a7856a5dd5af7840d0d8df32826c98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "588961f1af3cbdf7ac843b9dfddfe17df0a7856a5dd5af7840d0d8df32826c98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "588961f1af3cbdf7ac843b9dfddfe17df0a7856a5dd5af7840d0d8df32826c98", kill_on_drop: false }`
[INFO] [stdout] 588961f1af3cbdf7ac843b9dfddfe17df0a7856a5dd5af7840d0d8df32826c98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+6cbf54b1453b438241487f195740266bb9d8c8ba" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c6454ce9e23fff7e0690fd0c3a79795c4f48883f9ed01f93d667be7b0b849e1
[INFO] running `Command { std: "docker" "start" "-a" "5c6454ce9e23fff7e0690fd0c3a79795c4f48883f9ed01f93d667be7b0b849e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.81
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling serde v1.0.198
[INFO] [stderr]    Compiling serde_json v1.0.116
[INFO] [stderr]    Compiling semver v1.0.22
[INFO] [stderr]    Compiling camino v1.1.6
[INFO] [stderr]    Compiling thiserror v1.0.58
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]     Checking ryu v1.0.17
[INFO] [stderr]     Checking pkg-config v0.3.30
[INFO] [stderr]     Checking vcpkg v0.2.15
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.56
[INFO] [stderr]    Compiling serde_derive v1.0.198
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]     Checking cargo-platform v0.1.5
[INFO] [stderr]     Checking cargo_metadata v0.18.1
[INFO] [stderr]     Checking buildkit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `source`
[INFO] [stdout]    --> src/lib.rs:263:12
[INFO] [stdout]     |
[INFO] [stdout] 263 |     fn new(source: &VendoredSource) -> VendoredBuildContext {
[INFO] [stdout]     |            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_source`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `url` and `hash` are never read
[INFO] [stdout]    --> src/lib.rs:238:9
[INFO] [stdout]     |
[INFO] [stdout] 237 |     RemoteTarball {
[INFO] [stdout]     |     ------------- fields in this variant
[INFO] [stdout] 238 |         url: String,
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 239 |         hash: String,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `VendoredSource` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `url`, `git_ref`, and `hash` are never read
[INFO] [stdout]    --> src/lib.rs:243:9
[INFO] [stdout]     |
[INFO] [stdout] 242 |     GitRepo {
[INFO] [stdout]     |     ------- fields in this variant
[INFO] [stdout] 243 |         url: String,
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 244 |         git_ref: String,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 245 |         hash: String,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `VendoredSource` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `relative_path` is never read
[INFO] [stdout]    --> src/lib.rs:248:9
[INFO] [stdout]     |
[INFO] [stdout] 247 |     CratePath {
[INFO] [stdout]     |     --------- field in this variant
[INFO] [stdout] 248 |         relative_path: Utf8PathBuf,
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `VendoredSource` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `path` is never read
[INFO] [stdout]    --> src/lib.rs:252:9
[INFO] [stdout]     |
[INFO] [stdout] 251 |     SystemPath {
[INFO] [stdout]     |     ---------- field in this variant
[INFO] [stdout] 252 |         path: Utf8PathBuf,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `VendoredSource` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `source`
[INFO] [stdout]    --> src/lib.rs:263:12
[INFO] [stdout]     |
[INFO] [stdout] 263 |     fn new(source: &VendoredSource) -> VendoredBuildContext {
[INFO] [stdout]     |            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_source`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `url` and `hash` are never read
[INFO] [stdout]    --> src/lib.rs:238:9
[INFO] [stdout]     |
[INFO] [stdout] 237 |     RemoteTarball {
[INFO] [stdout]     |     ------------- fields in this variant
[INFO] [stdout] 238 |         url: String,
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 239 |         hash: String,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `VendoredSource` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `url`, `git_ref`, and `hash` are never read
[INFO] [stdout]    --> src/lib.rs:243:9
[INFO] [stdout]     |
[INFO] [stdout] 242 |     GitRepo {
[INFO] [stdout]     |     ------- fields in this variant
[INFO] [stdout] 243 |         url: String,
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 244 |         git_ref: String,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 245 |         hash: String,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `VendoredSource` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `relative_path` is never read
[INFO] [stdout]    --> src/lib.rs:248:9
[INFO] [stdout]     |
[INFO] [stdout] 247 |     CratePath {
[INFO] [stdout]     |     --------- field in this variant
[INFO] [stdout] 248 |         relative_path: Utf8PathBuf,
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `VendoredSource` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `path` is never read
[INFO] [stdout]    --> src/lib.rs:252:9
[INFO] [stdout]     |
[INFO] [stdout] 251 |     SystemPath {
[INFO] [stdout]     |     ---------- field in this variant
[INFO] [stdout] 252 |         path: Utf8PathBuf,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `VendoredSource` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.99s
[INFO] running `Command { std: "docker" "inspect" "5c6454ce9e23fff7e0690fd0c3a79795c4f48883f9ed01f93d667be7b0b849e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c6454ce9e23fff7e0690fd0c3a79795c4f48883f9ed01f93d667be7b0b849e1", kill_on_drop: false }`
[INFO] [stdout] 5c6454ce9e23fff7e0690fd0c3a79795c4f48883f9ed01f93d667be7b0b849e1