[INFO] cloning repository https://github.com/very-amused/lighter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/very-amused/lighter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvery-amused%2Flighter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvery-amused%2Flighter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 38e4cd643209d9ada9cd5a5b44eff3a4e7754792
[INFO] checking very-amused/lighter against master#69fd5e4059f8840f09f60269bcda23dcdcb77151 for pr-135733
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvery-amused%2Flighter" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/very-amused/lighter on toolchain 69fd5e4059f8840f09f60269bcda23dcdcb77151
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+69fd5e4059f8840f09f60269bcda23dcdcb77151" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/very-amused/lighter
[INFO] finished tweaking git repo https://github.com/very-amused/lighter
[INFO] tweaked toml for git repo https://github.com/very-amused/lighter written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/very-amused/lighter 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" "+69fd5e4059f8840f09f60269bcda23dcdcb77151" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+69fd5e4059f8840f09f60269bcda23dcdcb77151" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 95a799a4bc4da5be77b49033b2a419eb4cc91e9cf9a92a546c04fd9d33747f51
[INFO] running `Command { std: "docker" "start" "-a" "95a799a4bc4da5be77b49033b2a419eb4cc91e9cf9a92a546c04fd9d33747f51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95a799a4bc4da5be77b49033b2a419eb4cc91e9cf9a92a546c04fd9d33747f51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95a799a4bc4da5be77b49033b2a419eb4cc91e9cf9a92a546c04fd9d33747f51", kill_on_drop: false }`
[INFO] [stdout] 95a799a4bc4da5be77b49033b2a419eb4cc91e9cf9a92a546c04fd9d33747f51
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+69fd5e4059f8840f09f60269bcda23dcdcb77151" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e1d4146447b09e7375f8e5ee493b10652fc7b8ba85fc363566034cdad50edc8f
[INFO] running `Command { std: "docker" "start" "-a" "e1d4146447b09e7375f8e5ee493b10652fc7b8ba85fc363566034cdad50edc8f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling x11 v2.21.0
[INFO] [stderr]    Compiling lighter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking getrandom v0.2.9
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stdout] warning: constant `PROTOCOL` is never used
[INFO] [stdout]  --> src/lifx/header.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | const PROTOCOL: u16 = 1024;
[INFO] [stdout]   |       ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ADDRESSABLE` is never used
[INFO] [stdout]  --> src/lifx/header.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | const ADDRESSABLE: u8 = 0x10; // set bit 4 to 1
[INFO] [stdout]   |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TAGGED` is never used
[INFO] [stdout]  --> src/lifx/header.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | const TAGGED: u8 = 0x20; // set bit 5 to 1
[INFO] [stdout]   |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Header` is never constructed
[INFO] [stdout]  --> src/lifx/header.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Header {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `new` is never used
[INFO] [stdout]   --> src/lifx/header.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl Header {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] 24 |     fn new(mut self, message_type: u16, seq: u8) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PROTOCOL` is never used
[INFO] [stdout]  --> src/lifx/header.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | const PROTOCOL: u16 = 1024;
[INFO] [stdout]   |       ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ADDRESSABLE` is never used
[INFO] [stdout]  --> src/lifx/header.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | const ADDRESSABLE: u8 = 0x10; // set bit 4 to 1
[INFO] [stdout]   |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TAGGED` is never used
[INFO] [stdout]  --> src/lifx/header.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | const TAGGED: u8 = 0x20; // set bit 5 to 1
[INFO] [stdout]   |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Header` is never constructed
[INFO] [stdout]  --> src/lifx/header.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Header {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `new` is never used
[INFO] [stdout]   --> src/lifx/header.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl Header {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] 24 |     fn new(mut self, message_type: u16, seq: u8) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.49s
[INFO] running `Command { std: "docker" "inspect" "e1d4146447b09e7375f8e5ee493b10652fc7b8ba85fc363566034cdad50edc8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1d4146447b09e7375f8e5ee493b10652fc7b8ba85fc363566034cdad50edc8f", kill_on_drop: false }`
[INFO] [stdout] e1d4146447b09e7375f8e5ee493b10652fc7b8ba85fc363566034cdad50edc8f