[INFO] cloning repository https://github.com/joshuaholmes/chip8_this_time_in_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/joshuaholmes/chip8_this_time_in_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoshuaholmes%2Fchip8_this_time_in_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoshuaholmes%2Fchip8_this_time_in_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6c4e8e5454f70e72838f04c5a891ed75d6d3ddf9
[INFO] checking joshuaholmes/chip8_this_time_in_rust against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoshuaholmes%2Fchip8_this_time_in_rust" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/joshuaholmes/chip8_this_time_in_rust on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/joshuaholmes/chip8_this_time_in_rust
[INFO] finished tweaking git repo https://github.com/joshuaholmes/chip8_this_time_in_rust
[INFO] tweaked toml for git repo https://github.com/joshuaholmes/chip8_this_time_in_rust written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/joshuaholmes/chip8_this_time_in_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-12/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sdl2 v0.19.0
[INFO] [stderr]   Downloaded sdl2-sys v0.19.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "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] 4bf23d04d5b49105879a22a68b6d437a9883ae4c9662f40c84531b50af0530ff
[INFO] running `Command { std: "docker" "start" "-a" "4bf23d04d5b49105879a22a68b6d437a9883ae4c9662f40c84531b50af0530ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4bf23d04d5b49105879a22a68b6d437a9883ae4c9662f40c84531b50af0530ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bf23d04d5b49105879a22a68b6d437a9883ae4c9662f40c84531b50af0530ff", kill_on_drop: false }`
[INFO] [stdout] 4bf23d04d5b49105879a22a68b6d437a9883ae4c9662f40c84531b50af0530ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--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] 8b3da5f53a693276a9104495737936f2cf68f6451bc6de3e17bfd288bab8b029
[INFO] running `Command { std: "docker" "start" "-a" "8b3da5f53a693276a9104495737936f2cf68f6451bc6de3e17bfd288bab8b029", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.89
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling sdl2-sys v0.19.0
[INFO] [stderr]     Checking bitflags v0.6.0
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking sdl2 v0.19.0
[INFO] [stderr]     Checking chip8_this_time_in_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::str`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::str;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::str;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/cpu.rs:98:79
[INFO] [stdout]    |
[INFO] [stdout] 98 |             Err(e) => panic!("Couldn't open program file. Error message: {}", Error::description(&e)),
[INFO] [stdout]    |                                                                               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/cpu.rs:98:79
[INFO] [stdout]    |
[INFO] [stdout] 98 |             Err(e) => panic!("Couldn't open program file. Error message: {}", Error::description(&e)),
[INFO] [stdout]    |                                                                               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/cpu.rs:111:79
[INFO] [stdout]     |
[INFO] [stdout] 111 |             Err(e) => panic!("Couldn't read program file. Error message: {}", Error::description(&e)),
[INFO] [stdout]     |                                                                               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/cpu.rs:111:79
[INFO] [stdout]     |
[INFO] [stdout] 111 |             Err(e) => panic!("Couldn't read program file. Error message: {}", Error::description(&e)),
[INFO] [stdout]     |                                                                               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> src/opcode.rs:161:19
[INFO] [stdout]     |
[INFO] [stdout] 161 |     fn opcode_sys(args: &OpCodeArgs, cpu: &mut Cpu) {
[INFO] [stdout]     |                   ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> src/opcode.rs:167:19
[INFO] [stdout]     |
[INFO] [stdout] 167 |     fn opcode_cls(args: &OpCodeArgs, cpu: &mut Cpu) {
[INFO] [stdout]     |                   ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> src/opcode.rs:176:19
[INFO] [stdout]     |
[INFO] [stdout] 176 |     fn opcode_ret(args: &OpCodeArgs, cpu: &mut Cpu) {
[INFO] [stdout]     |                   ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> src/opcode.rs:161:19
[INFO] [stdout]     |
[INFO] [stdout] 161 |     fn opcode_sys(args: &OpCodeArgs, cpu: &mut Cpu) {
[INFO] [stdout]     |                   ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> src/opcode.rs:167:19
[INFO] [stdout]     |
[INFO] [stdout] 167 |     fn opcode_cls(args: &OpCodeArgs, cpu: &mut Cpu) {
[INFO] [stdout]     |                   ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> src/opcode.rs:176:19
[INFO] [stdout]     |
[INFO] [stdout] 176 |     fn opcode_ret(args: &OpCodeArgs, cpu: &mut Cpu) {
[INFO] [stdout]     |                   ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.87s
[INFO] running `Command { std: "docker" "inspect" "8b3da5f53a693276a9104495737936f2cf68f6451bc6de3e17bfd288bab8b029", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b3da5f53a693276a9104495737936f2cf68f6451bc6de3e17bfd288bab8b029", kill_on_drop: false }`
[INFO] [stdout] 8b3da5f53a693276a9104495737936f2cf68f6451bc6de3e17bfd288bab8b029