[INFO] fetching crate vexilla_client 0.0.1...
[INFO] checking vexilla_client-0.0.1 against try#377afada703be70d3fdff9164a481570a3cba7fe for pr-113240
[INFO] extracting crate vexilla_client 0.0.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate vexilla_client 0.0.1 on toolchain 377afada703be70d3fdff9164a481570a3cba7fe
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+377afada703be70d3fdff9164a481570a3cba7fe" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate vexilla_client 0.0.1
[INFO] finished tweaking crates.io crate vexilla_client 0.0.1
[INFO] tweaked toml for crates.io crate vexilla_client 0.0.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+377afada703be70d3fdff9164a481570a3cba7fe" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+377afada703be70d3fdff9164a481570a3cba7fe" "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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+377afada703be70d3fdff9164a481570a3cba7fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9b4aa7495f09c931e6808ab789b1bb0c0ec3ced3af0c63b951cb793276f9787d
[INFO] running `Command { std: "docker" "start" "-a" "9b4aa7495f09c931e6808ab789b1bb0c0ec3ced3af0c63b951cb793276f9787d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b4aa7495f09c931e6808ab789b1bb0c0ec3ced3af0c63b951cb793276f9787d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b4aa7495f09c931e6808ab789b1bb0c0ec3ced3af0c63b951cb793276f9787d", kill_on_drop: false }`
[INFO] [stdout] 9b4aa7495f09c931e6808ab789b1bb0c0ec3ced3af0c63b951cb793276f9787d
[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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+377afada703be70d3fdff9164a481570a3cba7fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f8224de0d07d4bb457abc12d570d60261beb9c6e1c9e58d518db298ed3b75a1
[INFO] running `Command { std: "docker" "start" "-a" "6f8224de0d07d4bb457abc12d570d60261beb9c6e1c9e58d518db298ed3b75a1", kill_on_drop: false }`
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking hyper v0.13.10
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking reqwest v0.10.10
[INFO] [stderr]     Checking vexilla_client v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `flag_type` is never read
[INFO] [stdout]   --> src/lib.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | struct VexillaFlagToggle {
[INFO] [stdout]    |        ----------------- field in this struct
[INFO] [stdout] 25 |     flag_type: String,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `VexillaFlagToggle` 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: field `flag_type` is never read
[INFO] [stdout]   --> src/lib.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | struct VexillaFlagGradual {
[INFO] [stdout]    |        ------------------ field in this struct
[INFO] [stdout] 31 |     flag_type: String,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `VexillaFlagGradual` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `flag_type` is never read
[INFO] [stdout]   --> src/lib.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | struct VexillaFlagToggle {
[INFO] [stdout]    |        ----------------- field in this struct
[INFO] [stdout] 25 |     flag_type: String,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `VexillaFlagToggle` 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: field `flag_type` is never read
[INFO] [stdout]   --> src/lib.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | struct VexillaFlagGradual {
[INFO] [stdout]    |        ------------------ field in this struct
[INFO] [stdout] 31 |     flag_type: String,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `VexillaFlagGradual` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.39s
[INFO] running `Command { std: "docker" "inspect" "6f8224de0d07d4bb457abc12d570d60261beb9c6e1c9e58d518db298ed3b75a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f8224de0d07d4bb457abc12d570d60261beb9c6e1c9e58d518db298ed3b75a1", kill_on_drop: false }`
[INFO] [stdout] 6f8224de0d07d4bb457abc12d570d60261beb9c6e1c9e58d518db298ed3b75a1