[INFO] updating cached repository https://github.com/nanomad/chip8emu-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2bc1d3bc3bee48c769950f9229342acc8e1ddbbb
[INFO] testing nanomad/chip8emu-rs against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnanomad%2Fchip8emu-rs" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nanomad/chip8emu-rs on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/nanomad/chip8emu-rs
[INFO] finished tweaking git repo https://github.com/nanomad/chip8emu-rs
[INFO] tweaked toml for git repo https://github.com/nanomad/chip8emu-rs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/nanomad/chip8emu-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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" "+28742a1146f10a4f09369baad027a464acb7a766" "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] ffd1602362b50c8cbcc13fdf1a0d47b183a2d98c117dea1ed249acc334bab34d
[INFO] running `"docker" "start" "-a" "ffd1602362b50c8cbcc13fdf1a0d47b183a2d98c117dea1ed249acc334bab34d"`
[INFO] [stderr]    Compiling libc v0.2.19
[INFO] [stderr]    Compiling minifb v0.9.0
[INFO] [stderr]    Compiling dylib v0.0.1
[INFO] [stderr]    Compiling time v0.1.35
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling x11-dl v2.2.1
[INFO] [stderr]    Compiling chip8emu-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0437]: type `Err` is not a member of trait `TryFrom`
[INFO] [stderr]   --> src/instruction.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     type Err = String;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^ not a member of trait `TryFrom`
[INFO] [stderr] 
[INFO] [stderr] error[E0437]: type `Err` is not a member of trait `TryFrom`
[INFO] [stderr]   --> src/debugger/command.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     type Err = String;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^ not a member of trait `TryFrom`
[INFO] [stderr] 
[INFO] [stderr] error[E0437]: type `Err` is not a member of trait `TryFrom`
[INFO] [stderr]   --> src/peripherals.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     type Err = String;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^ not a member of trait `TryFrom`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/debugger/debugger.rs:168:9
[INFO] [stderr]     |
[INFO] [stderr] 168 |         (!self.breakpoints.is_empty() && self.breakpoints.contains(&loc))
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0220]: associated type `Err` not found for `Self`
[INFO] [stderr]   --> src/instruction.rs:39:52
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn try_from(opcode: u16) -> Result<Self, Self::Err> {
[INFO] [stderr]    |                                                    ^^^ associated type `Err` not found
[INFO] [stderr] 
[INFO] [stderr] error[E0220]: associated type `Err` not found for `Self`
[INFO] [stderr]   --> src/debugger/command.rs:20:53
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn try_from(text: String) -> Result<Self, Self::Err> {
[INFO] [stderr]    |                                                     ^^^ associated type `Err` not found
[INFO] [stderr] 
[INFO] [stderr] error[E0220]: associated type `Err` not found for `Self`
[INFO] [stderr]   --> src/peripherals.rs:27:48
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn try_from(val: u8) -> Result<Self, Self::Err> {
[INFO] [stderr]    |                                                ^^^ associated type `Err` not found
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 6 previous errors; 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0220, E0437.
[INFO] [stderr] For more information about an error, try `rustc --explain E0220`.
[INFO] [stderr] error: could not compile `chip8emu-rs`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "ffd1602362b50c8cbcc13fdf1a0d47b183a2d98c117dea1ed249acc334bab34d"`
[INFO] running `"docker" "rm" "-f" "ffd1602362b50c8cbcc13fdf1a0d47b183a2d98c117dea1ed249acc334bab34d"`
[INFO] [stdout] ffd1602362b50c8cbcc13fdf1a0d47b183a2d98c117dea1ed249acc334bab34d