[INFO] fetching crate isomagic 0.1.0...
[INFO] checking isomagic-0.1.0 against beta for pr-78714
[INFO] extracting crate isomagic 0.1.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate isomagic 0.1.0 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 isomagic 0.1.0
[INFO] finished tweaking crates.io crate isomagic 0.1.0
[INFO] tweaked toml for crates.io crate isomagic 0.1.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] e87daccb7a3436e2cc3a576c4f9bf717b4f099de66dbb7c82c608d48c58c0c7e
[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" "e87daccb7a3436e2cc3a576c4f9bf717b4f099de66dbb7c82c608d48c58c0c7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e87daccb7a3436e2cc3a576c4f9bf717b4f099de66dbb7c82c608d48c58c0c7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e87daccb7a3436e2cc3a576c4f9bf717b4f099de66dbb7c82c608d48c58c0c7e", kill_on_drop: false }`
[INFO] [stdout] e87daccb7a3436e2cc3a576c4f9bf717b4f099de66dbb7c82c608d48c58c0c7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] [stdout] 06150efcb6e3140f2f2f44f23cf1afb8ded3705ea501b188303f98b1a02b08de
[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" "06150efcb6e3140f2f2f44f23cf1afb8ded3705ea501b188303f98b1a02b08de", kill_on_drop: false }`
[INFO] [stderr]     Checking weezl v0.1.3
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking dot_vox v3.1.0
[INFO] [stderr]    Compiling structopt-derive v0.4.13
[INFO] [stderr]     Checking num-iter v0.1.42
[INFO] [stderr]     Checking num-rational v0.3.2
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking gif v0.11.1
[INFO] [stderr]     Checking png v0.16.7
[INFO] [stderr]     Checking tiff v0.6.0
[INFO] [stderr]     Checking backtrace v0.3.54
[INFO] [stderr]     Checking error-chain v0.12.4
[INFO] [stderr]     Checking image v0.23.11
[INFO] [stderr]     Checking structopt v0.3.20
[INFO] [stderr]     Checking isomagic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0560]: struct `Rgba<u8>` has no field named `data`
[INFO] [stdout]    --> src/main.rs:153:13
[INFO] [stdout]     |
[INFO] [stdout] 152 |         Rgba {
[INFO] [stdout]     |         ---- `Rgba<_>` is a tuple struct, use the appropriate syntax: `Rgba<_>(/* fields */)`
[INFO] [stdout] 153 |             data: [r, g, b, a]
[INFO] [stdout]     |             ^^^^ field does not exist
[INFO] [stdout]     | 
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/image-0.23.11/./src/color.rs:376:5
[INFO] [stdout]     |
[INFO] [stdout] 376 |     Rgba, 4, 1, "RGBA", ColorType::Rgba8, ColorType::Rgba16, #[doc = "RGB colors + alpha channel"];
[INFO] [stdout]     |     ---- `Rgba<_>` defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0560]: struct `Rgba<u8>` has no field named `data`
[INFO] [stdout]    --> src/main.rs:153:13
[INFO] [stdout]     |
[INFO] [stdout] 152 |         Rgba {
[INFO] [stdout]     |         ---- `Rgba<_>` is a tuple struct, use the appropriate syntax: `Rgba<_>(/* fields */)`
[INFO] [stdout] 153 |             data: [r, g, b, a]
[INFO] [stdout]     |             ^^^^ field does not exist
[INFO] [stdout]     | 
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/image-0.23.11/./src/color.rs:376:5
[INFO] [stdout]     |
[INFO] [stdout] 376 |     Rgba, 4, 1, "RGBA", ColorType::Rgba8, ColorType::Rgba16, #[doc = "RGB colors + alpha channel"];
[INFO] [stdout]     |     ---- `Rgba<_>` defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0560`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `isomagic`
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0560`.
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "06150efcb6e3140f2f2f44f23cf1afb8ded3705ea501b188303f98b1a02b08de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06150efcb6e3140f2f2f44f23cf1afb8ded3705ea501b188303f98b1a02b08de", kill_on_drop: false }`
[INFO] [stdout] 06150efcb6e3140f2f2f44f23cf1afb8ded3705ea501b188303f98b1a02b08de