[INFO] fetching crate sdl2-unifont 1.0.1...
[INFO] checking sdl2-unifont-1.0.1 against try#575650af7d7ca88602df28e39d27bf3e456c306e for pr-80579
[INFO] extracting crate sdl2-unifont 1.0.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate sdl2-unifont 1.0.1 on toolchain 575650af7d7ca88602df28e39d27bf3e456c306e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sdl2-unifont 1.0.1
[INFO] finished tweaking crates.io crate sdl2-unifont 1.0.1
[INFO] tweaked toml for crates.io crate sdl2-unifont 1.0.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "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" "+575650af7d7ca88602df28e39d27bf3e456c306e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bit_field v0.9.0
[INFO] [stderr]   Downloaded pkg-config v0.3.19
[INFO] [stderr]   Downloaded rust-lzma v0.3.0
[INFO] [stderr]   Downloaded sdl2 v0.31.0
[INFO] [stderr]   Downloaded sdl2-sys v0.31.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 164bbf1a6f0238223f4fa0b3803b41177d2f846023f7182de75ebe44d817fa10
[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" "164bbf1a6f0238223f4fa0b3803b41177d2f846023f7182de75ebe44d817fa10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "164bbf1a6f0238223f4fa0b3803b41177d2f846023f7182de75ebe44d817fa10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "164bbf1a6f0238223f4fa0b3803b41177d2f846023f7182de75ebe44d817fa10", kill_on_drop: false }`
[INFO] [stdout] 164bbf1a6f0238223f4fa0b3803b41177d2f846023f7182de75ebe44d817fa10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7b43e591d215bd2429666f542c7bc2bf80b0c60eca6f7d7fee08a3303944ae20
[INFO] running `Command { std: "docker" "start" "-a" "7b43e591d215bd2429666f542c7bc2bf80b0c60eca6f7d7fee08a3303944ae20", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling sdl2-sys v0.31.0
[INFO] [stderr]    Compiling rust-lzma v0.3.0
[INFO] [stderr]    Compiling sdl2-unifont v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking sdl2 v0.31.0
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> examples/demo.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | /// Rainbow text colours, from back to front
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `colours` should have an upper case name
[INFO] [stdout]   --> examples/demo.rs:18:16
[INFO] [stdout]    |
[INFO] [stdout] 18 |     static ref colours: [Box<Color>; 12] = [
[INFO] [stdout]    |                ^^^^^^^ help: convert the identifier to upper case: `COLOURS`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.47s
[INFO] running `Command { std: "docker" "inspect" "7b43e591d215bd2429666f542c7bc2bf80b0c60eca6f7d7fee08a3303944ae20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b43e591d215bd2429666f542c7bc2bf80b0c60eca6f7d7fee08a3303944ae20", kill_on_drop: false }`
[INFO] [stdout] 7b43e591d215bd2429666f542c7bc2bf80b0c60eca6f7d7fee08a3303944ae20