[INFO] cloning repository https://github.com/nanomad/chip8emu-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nanomad/chip8emu-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnanomad%2Fchip8emu-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnanomad%2Fchip8emu-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2bc1d3bc3bee48c769950f9229342acc8e1ddbbb
[INFO] testing nanomad/chip8emu-rs against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnanomad%2Fchip8emu-rs" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nanomad/chip8emu-rs on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-8/source/Cargo.toml
[INFO] crate git repo https://github.com/nanomad/chip8emu-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded x11-dl v2.2.1
[INFO] [stderr]   Downloaded diff v0.1.9
[INFO] [stderr]   Downloaded syntex_pos v0.44.0
[INFO] [stderr]   Downloaded multimap v0.3.0
[INFO] [stderr]   Downloaded rustfmt v0.6.3
[INFO] [stderr]   Downloaded minifb v0.9.0
[INFO] [stderr]   Downloaded syntex_syntax v0.44.1
[INFO] [stderr]   Downloaded syntex_errors v0.44.0
[INFO] [stderr]   Downloaded strings v0.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 96937f77e9a756b1e763c09a5a8dccb7a4ad15811e8b8b36f9785309ab23bacc
[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" "96937f77e9a756b1e763c09a5a8dccb7a4ad15811e8b8b36f9785309ab23bacc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96937f77e9a756b1e763c09a5a8dccb7a4ad15811e8b8b36f9785309ab23bacc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96937f77e9a756b1e763c09a5a8dccb7a4ad15811e8b8b36f9785309ab23bacc", kill_on_drop: false }`
[INFO] [stdout] 96937f77e9a756b1e763c09a5a8dccb7a4ad15811e8b8b36f9785309ab23bacc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5443961f00f4714d25aa1d86715f69717223f9a93727966d1704cab24184e15d
[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" "5443961f00f4714d25aa1d86715f69717223f9a93727966d1704cab24184e15d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.19
[INFO] [stderr]    Compiling gcc v0.3.41
[INFO] [stderr]    Compiling libc v0.1.12
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[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 minifb v0.9.0
[INFO] [stderr]    Compiling chip8emu-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0437]: type `Err` is not a member of trait `TryFrom`
[INFO] [stdout]   --> src/instruction.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     type Err = String;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^ not a member of trait `TryFrom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0437]: type `Err` is not a member of trait `TryFrom`
[INFO] [stdout]   --> src/debugger/command.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     type Err = String;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^ not a member of trait `TryFrom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0437]: type `Err` is not a member of trait `TryFrom`
[INFO] [stdout]   --> src/peripherals.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     type Err = String;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^ not a member of trait `TryFrom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(try_from)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/debugger/debugger.rs:168:9
[INFO] [stdout]     |
[INFO] [stdout] 168 |         (!self.breakpoints.is_empty() && self.breakpoints.contains(&loc))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Err` not found for `Self`
[INFO] [stdout]   --> src/instruction.rs:39:52
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn try_from(opcode: u16) -> Result<Self, Self::Err> {
[INFO] [stdout]    |                                                    ^^^ associated type `Err` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Err` not found for `Self`
[INFO] [stdout]   --> src/debugger/command.rs:20:53
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn try_from(text: String) -> Result<Self, Self::Err> {
[INFO] [stdout]    |                                                     ^^^ associated type `Err` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0220]: associated type `Err` not found for `Self`
[INFO] [stdout]   --> src/peripherals.rs:27:48
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn try_from(val: u8) -> Result<Self, Self::Err> {
[INFO] [stdout]    |                                                ^^^ associated type `Err` not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0220, E0437, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0220`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chip8emu-rs`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "5443961f00f4714d25aa1d86715f69717223f9a93727966d1704cab24184e15d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5443961f00f4714d25aa1d86715f69717223f9a93727966d1704cab24184e15d", kill_on_drop: false }`
[INFO] [stdout] 5443961f00f4714d25aa1d86715f69717223f9a93727966d1704cab24184e15d