[INFO] crate isomagic 0.1.0 is already in cache
[INFO] testing isomagic-0.1.0 against beta-2020-06-03 for beta-1.45-1
[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-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[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 `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 042c85f0bfee9601c50f6406f5d5fb01bd40ace888e6f6b82364ddf5391d8fd3
[INFO] running `"docker" "start" "-a" "042c85f0bfee9601c50f6406f5d5fb01bd40ace888e6f6b82364ddf5391d8fd3"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling error-chain v0.12.2
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling png v0.16.4
[INFO] [stderr]    Compiling dot_vox v3.1.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.19
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling image v0.23.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling structopt-derive v0.4.7
[INFO] [stderr]    Compiling structopt v0.3.14
[INFO] [stderr]    Compiling isomagic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0560]: struct `image::Rgba<u8>` has no field named `data`
[INFO] [stderr]    --> src/main.rs:153:13
[INFO] [stderr]     |
[INFO] [stderr] 152 |         Rgba {
[INFO] [stderr]     |         ---- `image::Rgba<_>` is a tuple struct, use the appropriate syntax: `image::Rgba<_>(/* fields */)`
[INFO] [stderr] 153 |             data: [r, g, b, a]
[INFO] [stderr]     |             ^^^^ field does not exist
[INFO] [stderr]     | 
[INFO] [stderr]    ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/image-0.23.4/./src/color.rs:343:5
[INFO] [stderr]     |
[INFO] [stderr] 343 |     Rgba, 4, 1, "RGBA", ColorType::Rgba8, ColorType::Rgba16, #[doc = "RGB colors + alpha channel"];
[INFO] [stderr]     |     ---- `image::Rgba<_>` defined here
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0560`.
[INFO] [stderr] error: could not compile `isomagic`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "042c85f0bfee9601c50f6406f5d5fb01bd40ace888e6f6b82364ddf5391d8fd3"`
[INFO] running `"docker" "rm" "-f" "042c85f0bfee9601c50f6406f5d5fb01bd40ace888e6f6b82364ddf5391d8fd3"`
[INFO] [stdout] 042c85f0bfee9601c50f6406f5d5fb01bd40ace888e6f6b82364ddf5391d8fd3