[INFO] updating cached repository JordanLevin/Rust-emulator
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/JordanLevin/Rust-emulator
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/JordanLevin/Rust-emulator" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/JordanLevin/Rust-emulator"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/JordanLevin/Rust-emulator'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/JordanLevin/Rust-emulator" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/JordanLevin/Rust-emulator"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/JordanLevin/Rust-emulator'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fa02af4a011cc54a1eac4b98c935baa746e7c0c5
[INFO] sha for GitHub repo JordanLevin/Rust-emulator: fa02af4a011cc54a1eac4b98c935baa746e7c0c5
[INFO] validating manifest of JordanLevin/Rust-emulator on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of JordanLevin/Rust-emulator on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing JordanLevin/Rust-emulator
[INFO] finished frobbing JordanLevin/Rust-emulator
[INFO] frobbed toml for JordanLevin/Rust-emulator written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/JordanLevin/Rust-emulator/Cargo.toml
[INFO] started frobbing JordanLevin/Rust-emulator
[INFO] finished frobbing JordanLevin/Rust-emulator
[INFO] frobbed toml for JordanLevin/Rust-emulator written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/JordanLevin/Rust-emulator/Cargo.toml
[INFO] crate JordanLevin/Rust-emulator already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking JordanLevin/Rust-emulator against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-0/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/JordanLevin/Rust-emulator:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 48a158cd4c5b538b8e15f71fb7f491a0e42cf5cdb1520138976b09320a038a54
[INFO] running `"docker" "start" "-a" "48a158cd4c5b538b8e15f71fb7f491a0e42cf5cdb1520138976b09320a038a54"`
[INFO] [stderr]    Compiling sdl2-sys v0.31.0
[INFO] [stderr]     Checking sdl2 v0.31.0
[INFO] [stderr]     Checking emulator v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `keypress` is never read
[INFO] [stderr]    --> src/instruct.rs:280:19
[INFO] [stderr]     |
[INFO] [stderr] 280 |             _ => {keypress = false; break;},
[INFO] [stderr]     |                   ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `keypress` is never read
[INFO] [stderr]    --> src/instruct.rs:280:19
[INFO] [stderr]     |
[INFO] [stderr] 280 |             _ => {keypress = false; break;},
[INFO] [stderr]     |                   ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `opcode_to_str`
[INFO] [stderr]  --> src/disas.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn opcode_to_str(opcode: &Vec<u8>) -> String{
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     disassemble(&args[1], &mut canvas, &context);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/graphics.rs:77:17
[INFO] [stderr]    |
[INFO] [stderr] 77 |                 canvas.fill_rect(r);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `opcode_to_str`
[INFO] [stderr]  --> src/disas.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn opcode_to_str(opcode: &Vec<u8>) -> String{
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     disassemble(&args[1], &mut canvas, &context);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/graphics.rs:77:17
[INFO] [stderr]    |
[INFO] [stderr] 77 |                 canvas.fill_rect(r);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.48s
[INFO] running `"docker" "inspect" "48a158cd4c5b538b8e15f71fb7f491a0e42cf5cdb1520138976b09320a038a54"`
[INFO] running `"docker" "rm" "-f" "48a158cd4c5b538b8e15f71fb7f491a0e42cf5cdb1520138976b09320a038a54"`
[INFO] [stdout] 48a158cd4c5b538b8e15f71fb7f491a0e42cf5cdb1520138976b09320a038a54