[INFO] fetching crate RISCulator 0.1.0...
[INFO] checking RISCulator-0.1.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate RISCulator 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate RISCulator 0.1.0
[INFO] finished tweaking crates.io crate RISCulator 0.1.0
[INFO] tweaked toml for crates.io crate RISCulator 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate RISCulator 0.1.0 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 crates.io crate RISCulator 0.1.0 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 6ff94ce243f6b80807276154837eb93b0e4e34516be05178087a08f4f6e66f47
[INFO] running `Command { std: "docker" "start" "-a" "6ff94ce243f6b80807276154837eb93b0e4e34516be05178087a08f4f6e66f47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ff94ce243f6b80807276154837eb93b0e4e34516be05178087a08f4f6e66f47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ff94ce243f6b80807276154837eb93b0e4e34516be05178087a08f4f6e66f47", kill_on_drop: false }`
[INFO] [stdout] 6ff94ce243f6b80807276154837eb93b0e4e34516be05178087a08f4f6e66f47
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] b92f24667fc0e5229960b32cda1e8e5a782db2d93aef327b1f14f457d3c09f1c
[INFO] running `Command { std: "docker" "start" "-a" "b92f24667fc0e5229960b32cda1e8e5a782db2d93aef327b1f14f457d3c09f1c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling rustix v0.37.19
[INFO] [stderr]     Checking linux-raw-sys v0.3.8
[INFO] [stderr]    Compiling log v0.4.18
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking regex-syntax v0.7.2
[INFO] [stderr]     Checking aho-corasick v1.0.2
[INFO] [stderr]     Checking iana-time-zone v0.1.57
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]     Checking regex v1.8.4
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking chrono v0.4.26
[INFO] [stderr]     Checking is-terminal v0.4.7
[INFO] [stderr]     Checking env_logger v0.10.0
[INFO] [stderr]     Checking RISCulator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/main.rs:227:29
[INFO] [stdout]     |
[INFO] [stdout] 227 |             self.regs.write(i.try_into().unwrap(), 0);
[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/main.rs:228:35
[INFO] [stdout]     |
[INFO] [stdout] 228 |             self.ram_module.write(i.try_into().unwrap(), 0);
[INFO] [stdout]     |                                   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/main.rs:236:54
[INFO] [stdout]     |
[INFO] [stdout] 236 |                 let new_regs_up_line = new_regs.read(i.try_into().unwrap());
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/main.rs:237:33
[INFO] [stdout]     |
[INFO] [stdout] 237 |                 self.regs.write(i.try_into().unwrap(), new_regs_up_line);
[INFO] [stdout]     |                                 ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/main.rs:247:52
[INFO] [stdout]     |
[INFO] [stdout] 247 |                 let new_ram_up_line = new_ram.read(iter.try_into().unwrap());
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/main.rs:252:47
[INFO] [stdout]     |
[INFO] [stdout] 252 |                         self.ram_module.write(i.try_into().unwrap(), new_ram_up_line);
[INFO] [stdout]     |                                               ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/utils.rs:70:19
[INFO] [stdout]    |
[INFO] [stdout] 70 |         rut.write(i.try_into().unwrap(), 1);
[INFO] [stdout]    |                   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/utils.rs:71:18
[INFO] [stdout]    |
[INFO] [stdout] 71 |         rut.read(i.try_into().unwrap());
[INFO] [stdout]    |                  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/utils.rs:72:26
[INFO] [stdout]    |
[INFO] [stdout] 72 |         assert!(rut.read(i.try_into().unwrap()) == 1);
[INFO] [stdout]    |                          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/utils.rs:80:19
[INFO] [stdout]    |
[INFO] [stdout] 80 |         rut.write(i.try_into().unwrap(), 1);
[INFO] [stdout]    |                   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/utils.rs:81:18
[INFO] [stdout]    |
[INFO] [stdout] 81 |         rut.read(i.try_into().unwrap());
[INFO] [stdout]    |                  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/utils.rs:82:26
[INFO] [stdout]    |
[INFO] [stdout] 82 |         assert!(rut.read(i.try_into().unwrap()) == 1);
[INFO] [stdout]    |                          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/utils.rs:123:20
[INFO] [stdout]     |
[INFO] [stdout] 123 |          ram.write(i.try_into().unwrap(), temp_line);    // Error handling when overflow needs to be added here
[INFO] [stdout]     |                    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/utils.rs:138:42
[INFO] [stdout]     |
[INFO] [stdout] 138 |             instr = proc.ram_module.read(pcby4.try_into().unwrap());
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `RISCulator` (bin "RISCulator" test) due to 14 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `RISCulator` (bin "RISCulator") due to 14 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/main.rs:227:29
[INFO] [stdout]     |
[INFO] [stdout] 227 |             self.regs.write(i.try_into().unwrap(), 0);
[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/main.rs:228:35
[INFO] [stdout]     |
[INFO] [stdout] 228 |             self.ram_module.write(i.try_into().unwrap(), 0);
[INFO] [stdout]     |                                   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/main.rs:236:54
[INFO] [stdout]     |
[INFO] [stdout] 236 |                 let new_regs_up_line = new_regs.read(i.try_into().unwrap());
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/main.rs:237:33
[INFO] [stdout]     |
[INFO] [stdout] 237 |                 self.regs.write(i.try_into().unwrap(), new_regs_up_line);
[INFO] [stdout]     |                                 ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/main.rs:247:52
[INFO] [stdout]     |
[INFO] [stdout] 247 |                 let new_ram_up_line = new_ram.read(iter.try_into().unwrap());
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/main.rs:252:47
[INFO] [stdout]     |
[INFO] [stdout] 252 |                         self.ram_module.write(i.try_into().unwrap(), new_ram_up_line);
[INFO] [stdout]     |                                               ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/utils.rs:70:19
[INFO] [stdout]    |
[INFO] [stdout] 70 |         rut.write(i.try_into().unwrap(), 1);
[INFO] [stdout]    |                   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/utils.rs:71:18
[INFO] [stdout]    |
[INFO] [stdout] 71 |         rut.read(i.try_into().unwrap());
[INFO] [stdout]    |                  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/utils.rs:72:26
[INFO] [stdout]    |
[INFO] [stdout] 72 |         assert!(rut.read(i.try_into().unwrap()) == 1);
[INFO] [stdout]    |                          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/utils.rs:80:19
[INFO] [stdout]    |
[INFO] [stdout] 80 |         rut.write(i.try_into().unwrap(), 1);
[INFO] [stdout]    |                   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/utils.rs:81:18
[INFO] [stdout]    |
[INFO] [stdout] 81 |         rut.read(i.try_into().unwrap());
[INFO] [stdout]    |                  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/utils.rs:82:26
[INFO] [stdout]    |
[INFO] [stdout] 82 |         assert!(rut.read(i.try_into().unwrap()) == 1);
[INFO] [stdout]    |                          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/utils.rs:123:20
[INFO] [stdout]     |
[INFO] [stdout] 123 |          ram.write(i.try_into().unwrap(), temp_line);    // Error handling when overflow needs to be added here
[INFO] [stdout]     |                    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/utils.rs:138:42
[INFO] [stdout]     |
[INFO] [stdout] 138 |             instr = proc.ram_module.read(pcby4.try_into().unwrap());
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b92f24667fc0e5229960b32cda1e8e5a782db2d93aef327b1f14f457d3c09f1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b92f24667fc0e5229960b32cda1e8e5a782db2d93aef327b1f14f457d3c09f1c", kill_on_drop: false }`
[INFO] [stdout] b92f24667fc0e5229960b32cda1e8e5a782db2d93aef327b1f14f457d3c09f1c