[INFO] fetching crate x328-proto 0.1.2...
[INFO] checking x328-proto-0.1.2 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate x328-proto 0.1.2 into /workspace/builds/worker-105/source
[INFO] validating manifest of crates.io crate x328-proto 0.1.2 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate x328-proto 0.1.2
[INFO] finished tweaking crates.io crate x328-proto 0.1.2
[INFO] tweaked toml for crates.io crate x328-proto 0.1.2 written to /workspace/builds/worker-105/source/Cargo.toml
[INFO] crate crates.io crate x328-proto 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 22ac8a9fcf27eb785ee97d183b9dd964dceeff1c87255b72d22f5e4ff63a3aa5
[INFO] running `Command { std: "docker" "start" "-a" "22ac8a9fcf27eb785ee97d183b9dd964dceeff1c87255b72d22f5e4ff63a3aa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "22ac8a9fcf27eb785ee97d183b9dd964dceeff1c87255b72d22f5e4ff63a3aa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22ac8a9fcf27eb785ee97d183b9dd964dceeff1c87255b72d22f5e4ff63a3aa5", kill_on_drop: false }`
[INFO] [stdout] 22ac8a9fcf27eb785ee97d183b9dd964dceeff1c87255b72d22f5e4ff63a3aa5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ad796f6797fd226b7265a77f95fcfb4ead8e0f5e943e8bbaa41c5b346a5a79e
[INFO] running `Command { std: "docker" "start" "-a" "0ad796f6797fd226b7265a77f95fcfb4ead8e0f5e943e8bbaa41c5b346a5a79e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.68
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking arrayvec v0.7.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling snafu-derive v0.6.10
[INFO] [stderr]     Checking snafu v0.6.10
[INFO] [stderr]     Checking x328-proto v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `master`
[INFO] [stdout]    --> src/master.rs:230:5
[INFO] [stdout]     |
[INFO] [stdout] 230 |     master: &'a mut Master,
[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] [stdout] warning: field is never read: `master`
[INFO] [stdout]    --> src/master.rs:230:5
[INFO] [stdout]     |
[INFO] [stdout] 230 |     master: &'a mut Master,
[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 18.27s
[INFO] running `Command { std: "docker" "inspect" "0ad796f6797fd226b7265a77f95fcfb4ead8e0f5e943e8bbaa41c5b346a5a79e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ad796f6797fd226b7265a77f95fcfb4ead8e0f5e943e8bbaa41c5b346a5a79e", kill_on_drop: false }`
[INFO] [stdout] 0ad796f6797fd226b7265a77f95fcfb4ead8e0f5e943e8bbaa41c5b346a5a79e