[INFO] cloning repository https://github.com/Bownairo/sixtyfiveohtwo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Bownairo/sixtyfiveohtwo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBownairo%2Fsixtyfiveohtwo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBownairo%2Fsixtyfiveohtwo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5b1b5d8b612ee62883c87a33f8b2f428ec023cb6
[INFO] checking Bownairo/sixtyfiveohtwo against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBownairo%2Fsixtyfiveohtwo" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-4-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/Bownairo/sixtyfiveohtwo
[INFO] finished tweaking git repo https://github.com/Bownairo/sixtyfiveohtwo
[INFO] tweaked toml for git repo https://github.com/Bownairo/sixtyfiveohtwo written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Bownairo/sixtyfiveohtwo on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Bownairo/sixtyfiveohtwo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 394f3255b276eeebf758b80abc3c76fc2ddcd9b7bc427146d60e6c9085202897
[INFO] running `Command { std: "docker" "start" "-a" "394f3255b276eeebf758b80abc3c76fc2ddcd9b7bc427146d60e6c9085202897", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "394f3255b276eeebf758b80abc3c76fc2ddcd9b7bc427146d60e6c9085202897", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "394f3255b276eeebf758b80abc3c76fc2ddcd9b7bc427146d60e6c9085202897", kill_on_drop: false }`
[INFO] [stdout] 394f3255b276eeebf758b80abc3c76fc2ddcd9b7bc427146d60e6c9085202897
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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 -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07a894a3b97f10dc5c2929a15b32460d16c4200a1bcc8e3b270fcf6695558700
[INFO] running `Command { std: "docker" "start" "-a" "07a894a3b97f10dc5c2929a15b32460d16c4200a1bcc8e3b270fcf6695558700", kill_on_drop: false }`
[INFO] [stderr]     Checking sixtyfiveohtwo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `render` is never used
[INFO] [stdout]   --> src/instructions/mod.rs:16:6
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub(crate) trait Renderable {
[INFO] [stdout]    |                  ---------- method in this trait
[INFO] [stdout] 16 |   fn render(&self) -> Vec<u8>;
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `write` is never used
[INFO] [stdout]   --> src/registers.rs:37:6
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub(crate) trait IndexRegister {
[INFO] [stdout]    |                  ------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 37 |   fn write(&mut self, value: i8);
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/memory.rs:69:7
[INFO] [stdout]    |
[INFO] [stdout] 69 |       usize::try_from(addr + u16::try_from(register.read()).unwrap()).unwrap();
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/memory.rs:80:7
[INFO] [stdout]    |
[INFO] [stdout] 80 |       usize::try_from(addr + u16::try_from(register.read()).unwrap()).unwrap();
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sixtyfiveohtwo` (bin "sixtyfiveohtwo" test) due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: method `render` is never used
[INFO] [stdout]   --> src/instructions/mod.rs:16:6
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub(crate) trait Renderable {
[INFO] [stdout]    |                  ---------- method in this trait
[INFO] [stdout] 16 |   fn render(&self) -> Vec<u8>;
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `write` is never used
[INFO] [stdout]   --> src/registers.rs:37:6
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub(crate) trait IndexRegister {
[INFO] [stdout]    |                  ------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 37 |   fn write(&mut self, value: i8);
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/memory.rs:69:7
[INFO] [stdout]    |
[INFO] [stdout] 69 |       usize::try_from(addr + u16::try_from(register.read()).unwrap()).unwrap();
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/memory.rs:80:7
[INFO] [stdout]    |
[INFO] [stdout] 80 |       usize::try_from(addr + u16::try_from(register.read()).unwrap()).unwrap();
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sixtyfiveohtwo` (bin "sixtyfiveohtwo") due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "07a894a3b97f10dc5c2929a15b32460d16c4200a1bcc8e3b270fcf6695558700", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07a894a3b97f10dc5c2929a15b32460d16c4200a1bcc8e3b270fcf6695558700", kill_on_drop: false }`
[INFO] [stdout] 07a894a3b97f10dc5c2929a15b32460d16c4200a1bcc8e3b270fcf6695558700