[INFO] fetching crate fltk-sys 1.0.17...
[INFO] checking fltk-sys-1.0.17 against master#0a8629bff642c3c3b84bb644c0099194f063b627 for pr-86231
[INFO] extracting crate fltk-sys 1.0.17 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate fltk-sys 1.0.17 on toolchain 0a8629bff642c3c3b84bb644c0099194f063b627
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fltk-sys 1.0.17
[INFO] finished tweaking crates.io crate fltk-sys 1.0.17
[INFO] tweaked toml for crates.io crate fltk-sys 1.0.17 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate fltk-sys 1.0.17 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3541eaee872d7ba53c601e5da1c1b17bd736bbc2716bc94173b0c4b9de7508b1
[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" "3541eaee872d7ba53c601e5da1c1b17bd736bbc2716bc94173b0c4b9de7508b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3541eaee872d7ba53c601e5da1c1b17bd736bbc2716bc94173b0c4b9de7508b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3541eaee872d7ba53c601e5da1c1b17bd736bbc2716bc94173b0c4b9de7508b1", kill_on_drop: false }`
[INFO] [stdout] 3541eaee872d7ba53c601e5da1c1b17bd736bbc2716bc94173b0c4b9de7508b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "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] b6c7db4e5cddb7027128cc53330fd177db14bdc6485158da74b03b0bed7d63c1
[INFO] running `Command { std: "docker" "start" "-a" "b6c7db4e5cddb7027128cc53330fd177db14bdc6485158da74b03b0bed7d63c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling fltk-sys v1.0.17 (/opt/rustwide/workdir)
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]     --> src/window.rs:2469:19
[INFO] [stdout]      |
[INFO] [stdout] 2469 |         unsafe { &(*(::core::ptr::null::<winid>())).x_id as *const _ as usize },
[INFO] [stdout]      |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(deref_nullptr)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]     --> src/window.rs:2479:19
[INFO] [stdout]      |
[INFO] [stdout] 2479 |         unsafe { &(*(::core::ptr::null::<winid>())).opaque as *const _ as usize },
[INFO] [stdout]      |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 57s
[INFO] running `Command { std: "docker" "inspect" "b6c7db4e5cddb7027128cc53330fd177db14bdc6485158da74b03b0bed7d63c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6c7db4e5cddb7027128cc53330fd177db14bdc6485158da74b03b0bed7d63c1", kill_on_drop: false }`
[INFO] [stdout] b6c7db4e5cddb7027128cc53330fd177db14bdc6485158da74b03b0bed7d63c1