[INFO] fetching crate signin 0.1.6...
[INFO] checking signin-0.1.6 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate signin 0.1.6 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate signin 0.1.6 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate signin 0.1.6
[INFO] finished tweaking crates.io crate signin 0.1.6
[INFO] tweaked toml for crates.io crate signin 0.1.6 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 01663f8ccbe9324d73321b6e4cd42b3e926e5b290e355df701a9dfe152272085
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "01663f8ccbe9324d73321b6e4cd42b3e926e5b290e355df701a9dfe152272085", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01663f8ccbe9324d73321b6e4cd42b3e926e5b290e355df701a9dfe152272085", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01663f8ccbe9324d73321b6e4cd42b3e926e5b290e355df701a9dfe152272085", kill_on_drop: false }`
[INFO] [stdout] 01663f8ccbe9324d73321b6e4cd42b3e926e5b290e355df701a9dfe152272085
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e53fa69f1ed5737f5081a53b1095c0119b4f62ee3baa2d20b17d52d43e870439
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e53fa69f1ed5737f5081a53b1095c0119b4f62ee3baa2d20b17d52d43e870439", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling const_fn v0.4.8
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking debug_macros v0.0.1
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling time v0.2.27
[INFO] [stderr]     Checking openssl-sys v0.9.65
[INFO] [stderr]     Checking openssl v0.10.35
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]    Compiling time-macros-impl v0.1.2
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking signin v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `kty`
[INFO] [stdout]   --> src/lib.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub kty: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `kty`
[INFO] [stdout]   --> src/lib.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub kty: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.75s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e53fa69f1ed5737f5081a53b1095c0119b4f62ee3baa2d20b17d52d43e870439", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e53fa69f1ed5737f5081a53b1095c0119b4f62ee3baa2d20b17d52d43e870439", kill_on_drop: false }`
[INFO] [stdout] e53fa69f1ed5737f5081a53b1095c0119b4f62ee3baa2d20b17d52d43e870439