[INFO] fetching crate apriltag 0.3.1...
[INFO] checking apriltag-0.3.1 against beta for pr-78714
[INFO] extracting crate apriltag 0.3.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate apriltag 0.3.1 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate apriltag 0.3.1
[INFO] finished tweaking crates.io crate apriltag 0.3.1
[INFO] tweaked toml for crates.io crate apriltag 0.3.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate apriltag 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 05e0830d0bb33d63b1d54b0bca1c5b91feb96c5d9cd5fda19b1d74cf11088b57
[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" "05e0830d0bb33d63b1d54b0bca1c5b91feb96c5d9cd5fda19b1d74cf11088b57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "05e0830d0bb33d63b1d54b0bca1c5b91feb96c5d9cd5fda19b1d74cf11088b57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05e0830d0bb33d63b1d54b0bca1c5b91feb96c5d9cd5fda19b1d74cf11088b57", kill_on_drop: false }`
[INFO] [stdout] 05e0830d0bb33d63b1d54b0bca1c5b91feb96c5d9cd5fda19b1d74cf11088b57
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] 500aa27bb119f3e7a14b2e1821cf495a2af771a277e8473946bc967af81a34e8
[INFO] running `Command { std: "docker" "start" "-a" "500aa27bb119f3e7a14b2e1821cf495a2af771a277e8473946bc967af81a34e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]    Compiling argh_shared v0.1.1
[INFO] [stderr]     Checking weezl v0.1.1
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]     Checking png v0.16.7
[INFO] [stderr]     Checking rayon-core v1.8.1
[INFO] [stderr]     Checking tiff v0.5.0
[INFO] [stderr]    Compiling argh_derive v0.1.1
[INFO] [stderr]     Checking gif v0.11.1
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]     Checking rayon v1.4.1
[INFO] [stderr]    Compiling cc v1.0.61
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]    Compiling apriltag-sys v0.1.5
[INFO] [stderr]     Checking argh v0.1.3
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking image v0.23.10
[INFO] [stderr]     Checking apriltag v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant is never used: `DEFAULT_ALIGNMENT_U8`
[INFO] [stdout]   --> src/image_buf.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | const DEFAULT_ALIGNMENT_U8: usize = 96;
[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: unused import: `super::*`
[INFO] [stdout]    --> src/image_buf.rs:355:9
[INFO] [stdout]     |
[INFO] [stdout] 355 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `DEFAULT_ALIGNMENT_U8`
[INFO] [stdout]   --> src/image_buf.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | const DEFAULT_ALIGNMENT_U8: usize = 96;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` 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 27.84s
[INFO] running `Command { std: "docker" "inspect" "500aa27bb119f3e7a14b2e1821cf495a2af771a277e8473946bc967af81a34e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "500aa27bb119f3e7a14b2e1821cf495a2af771a277e8473946bc967af81a34e8", kill_on_drop: false }`
[INFO] [stdout] 500aa27bb119f3e7a14b2e1821cf495a2af771a277e8473946bc967af81a34e8