[INFO] fetching crate mki 0.2.1...
[INFO] checking mki-0.2.1 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate mki 0.2.1 into /workspace/builds/worker-92/source
[INFO] validating manifest of crates.io crate mki 0.2.1 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 mki 0.2.1
[INFO] finished tweaking crates.io crate mki 0.2.1
[INFO] tweaked toml for crates.io crate mki 0.2.1 written to /workspace/builds/worker-92/source/Cargo.toml
[INFO] crate crates.io crate mki 0.2.1 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded udev v0.6.2
[INFO] [stderr]   Downloaded nix v0.22.2
[INFO] [stderr]   Downloaded input v0.6.0
[INFO] [stderr]   Downloaded ioctl-sys v0.5.2
[INFO] [stderr]   Downloaded uinput-sys v0.1.7
[INFO] [stderr]   Downloaded input-sys v1.16.0
[INFO] [stderr]   Downloaded uinput v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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] 8eda054b179ae06e822fe6ab72f33727fa0934a62528583e9eb9f8ebb2831b74
[INFO] running `Command { std: "docker" "start" "-a" "8eda054b179ae06e822fe6ab72f33727fa0934a62528583e9eb9f8ebb2831b74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8eda054b179ae06e822fe6ab72f33727fa0934a62528583e9eb9f8ebb2831b74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8eda054b179ae06e822fe6ab72f33727fa0934a62528583e9eb9f8ebb2831b74", kill_on_drop: false }`
[INFO] [stdout] 8eda054b179ae06e822fe6ab72f33727fa0934a62528583e9eb9f8ebb2831b74
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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] 50391f18c0e5d59235f5a8d08bf8170d0cdff37b19eef0cafbb97e1eac31038a
[INFO] running `Command { std: "docker" "start" "-a" "50391f18c0e5d59235f5a8d08bf8170d0cdff37b19eef0cafbb97e1eac31038a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]    Compiling input-sys v1.16.0
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking ioctl-sys v0.5.2
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking enum_derive v0.1.7
[INFO] [stderr]     Checking custom_derive v0.1.7
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling x11 v2.19.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking uinput-sys v0.1.7
[INFO] [stderr]     Checking nix v0.22.2
[INFO] [stderr]     Checking udev v0.6.2
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking input v0.6.0
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]     Checking uinput v0.1.3
[INFO] [stderr]     Checking serde_yaml v0.8.21
[INFO] [stderr]     Checking mki v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `std::thread::Builder` that must be used
[INFO] [stdout]    --> src/details.rs:119:13
[INFO] [stdout]     |
[INFO] [stdout] 119 |             thread::Builder::new();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: must eventually spawn the thread
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::thread::Builder` that must be used
[INFO] [stdout]    --> src/details.rs:119:13
[INFO] [stdout]     |
[INFO] [stdout] 119 |             thread::Builder::new();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: must eventually spawn the thread
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.40s
[INFO] running `Command { std: "docker" "inspect" "50391f18c0e5d59235f5a8d08bf8170d0cdff37b19eef0cafbb97e1eac31038a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50391f18c0e5d59235f5a8d08bf8170d0cdff37b19eef0cafbb97e1eac31038a", kill_on_drop: false }`
[INFO] [stdout] 50391f18c0e5d59235f5a8d08bf8170d0cdff37b19eef0cafbb97e1eac31038a