[INFO] fetching crate ser-io 0.2.0...
[INFO] testing ser-io-0.2.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate ser-io 0.2.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate ser-io 0.2.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ser-io 0.2.0
[INFO] finished tweaking crates.io crate ser-io 0.2.0
[INFO] tweaked toml for crates.io crate ser-io 0.2.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate ser-io 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memmap v0.7.0
[INFO] [stderr]   Downloaded structopt-derive v0.4.16
[INFO] [stderr]   Downloaded syn v1.0.77
[INFO] [stderr]   Downloaded structopt v0.3.23
[INFO] [stderr]   Downloaded libc v0.2.102
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", 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] dbf674d97aa586caa6f8b0f62eb3d68d180aa66332998cd601bf9a2e0cdc0fff
[INFO] running `Command { std: "docker" "start" "-a" "dbf674d97aa586caa6f8b0f62eb3d68d180aa66332998cd601bf9a2e0cdc0fff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dbf674d97aa586caa6f8b0f62eb3d68d180aa66332998cd601bf9a2e0cdc0fff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbf674d97aa586caa6f8b0f62eb3d68d180aa66332998cd601bf9a2e0cdc0fff", kill_on_drop: false }`
[INFO] [stdout] dbf674d97aa586caa6f8b0f62eb3d68d180aa66332998cd601bf9a2e0cdc0fff
[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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--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] c293ed6e6b148331ead34fc415d4def3b962f4568ae8d71d129b6470b3e55192
[INFO] running `Command { std: "docker" "start" "-a" "c293ed6e6b148331ead34fc415d4def3b962f4568ae8d71d129b6470b3e55192", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling ser-io v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.30s
[INFO] running `Command { std: "docker" "inspect" "c293ed6e6b148331ead34fc415d4def3b962f4568ae8d71d129b6470b3e55192", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c293ed6e6b148331ead34fc415d4def3b962f4568ae8d71d129b6470b3e55192", kill_on_drop: false }`
[INFO] [stdout] c293ed6e6b148331ead34fc415d4def3b962f4568ae8d71d129b6470b3e55192
[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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--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] 82094ddcd94af4b39db70d78e1d0e941c164c30a6afe19a9d99877298823ae49
[INFO] running `Command { std: "docker" "start" "-a" "82094ddcd94af4b39db70d78e1d0e941c164c30a6afe19a9d99877298823ae49", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.77
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.16
[INFO] [stderr]    Compiling structopt v0.3.23
[INFO] [stderr]    Compiling ser-io v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0615]: attempted to take value of method `image_frame_size` on type `&SerHeader`
[INFO] [stdout]   --> examples/view-ser.rs:43:39
[INFO] [stdout]    |
[INFO] [stdout] 43 |     println!("Frame size: {}", header.image_frame_size);
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^ method, not a field
[INFO] [stdout]    |
[INFO] [stdout] help: use parentheses to call the method
[INFO] [stdout]    |
[INFO] [stdout] 43 |     println!("Frame size: {}", header.image_frame_size());
[INFO] [stdout]    |                                                       ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0615]: attempted to take value of method `bytes_per_pixel` on type `&SerHeader`
[INFO] [stdout]   --> examples/view-ser.rs:45:44
[INFO] [stdout]    |
[INFO] [stdout] 45 |     println!("Bytes per pixel: {}", header.bytes_per_pixel);
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^ method, not a field
[INFO] [stdout]    |
[INFO] [stdout] help: use parentheses to call the method
[INFO] [stdout]    |
[INFO] [stdout] 45 |     println!("Bytes per pixel: {}", header.bytes_per_pixel());
[INFO] [stdout]    |                                                           ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0615`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ser-io` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "82094ddcd94af4b39db70d78e1d0e941c164c30a6afe19a9d99877298823ae49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82094ddcd94af4b39db70d78e1d0e941c164c30a6afe19a9d99877298823ae49", kill_on_drop: false }`
[INFO] [stdout] 82094ddcd94af4b39db70d78e1d0e941c164c30a6afe19a9d99877298823ae49