[INFO] fetching crate ShellcodeGenerator 0.1.0...
[INFO] checking ShellcodeGenerator-0.1.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate ShellcodeGenerator 0.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate ShellcodeGenerator 0.1.0
[INFO] finished tweaking crates.io crate ShellcodeGenerator 0.1.0
[INFO] tweaked toml for crates.io crate ShellcodeGenerator 0.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ShellcodeGenerator 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] a654b556b4712920b7dfd09a882f4b53fdc2a9225a8cb130d9874b3cb494a66c
[INFO] running `Command { std: "docker" "start" "-a" "a654b556b4712920b7dfd09a882f4b53fdc2a9225a8cb130d9874b3cb494a66c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a654b556b4712920b7dfd09a882f4b53fdc2a9225a8cb130d9874b3cb494a66c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a654b556b4712920b7dfd09a882f4b53fdc2a9225a8cb130d9874b3cb494a66c", kill_on_drop: false }`
[INFO] [stdout] a654b556b4712920b7dfd09a882f4b53fdc2a9225a8cb130d9874b3cb494a66c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] f86b33364b8a6510a215b0ee4f25f4f8c3b8f7f0194db19fc04e8d7f98c0ae96
[INFO] running `Command { std: "docker" "start" "-a" "f86b33364b8a6510a215b0ee4f25f4f8c3b8f7f0194db19fc04e8d7f98c0ae96", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]     Checking ShellcodeGenerator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `filename`
[INFO] [stdout]    --> src/Mips/Linux.rs:281:30
[INFO] [stdout]     |
[INFO] [stdout] 281 |     pub fn OpenFile (&mut self, filename: &str, mode: u32)
[INFO] [stdout]     |                                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filename`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode`
[INFO] [stdout]    --> src/Mips/Linux.rs:281:46
[INFO] [stdout]     |
[INFO] [stdout] 281 |     pub fn OpenFile (&mut self, filename: &str, mode: u32)
[INFO] [stdout]     |                                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_mode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filename`
[INFO] [stdout]    --> src/Mips/Linux.rs:286:34
[INFO] [stdout]     |
[INFO] [stdout] 286 |     pub fn ReadFromFile (&mut self, filename: &str, bufAddr: MipsRegister, size: usize)
[INFO] [stdout]     |                                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filename`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bufAddr`
[INFO] [stdout]    --> src/Mips/Linux.rs:286:50
[INFO] [stdout]     |
[INFO] [stdout] 286 |     pub fn ReadFromFile (&mut self, filename: &str, bufAddr: MipsRegister, size: usize)
[INFO] [stdout]     |                                                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bufAddr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]    --> src/Mips/Linux.rs:286:73
[INFO] [stdout]     |
[INFO] [stdout] 286 |     pub fn ReadFromFile (&mut self, filename: &str, bufAddr: MipsRegister, size: usize)
[INFO] [stdout]     |                                                                            ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filename`
[INFO] [stdout]    --> src/Mips/Linux.rs:326:33
[INFO] [stdout]     |
[INFO] [stdout] 326 |     pub fn WriteToFile (&mut self, filename: &str, bufAddr: MipsRegister, size: usize)
[INFO] [stdout]     |                                    ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filename`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bufAddr`
[INFO] [stdout]    --> src/Mips/Linux.rs:326:49
[INFO] [stdout]     |
[INFO] [stdout] 326 |     pub fn WriteToFile (&mut self, filename: &str, bufAddr: MipsRegister, size: usize)
[INFO] [stdout]     |                                                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bufAddr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]    --> src/Mips/Linux.rs:326:72
[INFO] [stdout]     |
[INFO] [stdout] 326 |     pub fn WriteToFile (&mut self, filename: &str, bufAddr: MipsRegister, size: usize)
[INFO] [stdout]     |                                                                           ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filename`
[INFO] [stdout]    --> src/Mips/Linux.rs:366:38
[INFO] [stdout]     |
[INFO] [stdout] 366 |     pub fn ReadLineFromFile (&mut self, filename: &str, bufAddr: MipsRegister, maxSize: usize)
[INFO] [stdout]     |                                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filename`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bufAddr`
[INFO] [stdout]    --> src/Mips/Linux.rs:366:54
[INFO] [stdout]     |
[INFO] [stdout] 366 |     pub fn ReadLineFromFile (&mut self, filename: &str, bufAddr: MipsRegister, maxSize: usize)
[INFO] [stdout]     |                                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bufAddr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `maxSize`
[INFO] [stdout]    --> src/Mips/Linux.rs:366:77
[INFO] [stdout]     |
[INFO] [stdout] 366 |     pub fn ReadLineFromFile (&mut self, filename: &str, bufAddr: MipsRegister, maxSize: usize)
[INFO] [stdout]     |                                                                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_maxSize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fd`
[INFO] [stdout]    --> src/Mips/Linux.rs:371:36
[INFO] [stdout]     |
[INFO] [stdout] 371 |     pub fn ReadLineFromFd (&mut self, fd: usize, bufAddr: MipsRegister, maxSize: usize)
[INFO] [stdout]     |                                       ^^ help: if this is intentional, prefix it with an underscore: `_fd`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bufAddr`
[INFO] [stdout]    --> src/Mips/Linux.rs:371:47
[INFO] [stdout]     |
[INFO] [stdout] 371 |     pub fn ReadLineFromFd (&mut self, fd: usize, bufAddr: MipsRegister, maxSize: usize)
[INFO] [stdout]     |                                                  ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bufAddr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `maxSize`
[INFO] [stdout]    --> src/Mips/Linux.rs:371:70
[INFO] [stdout]     |
[INFO] [stdout] 371 |     pub fn ReadLineFromFd (&mut self, fd: usize, bufAddr: MipsRegister, maxSize: usize)
[INFO] [stdout]     |                                                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_maxSize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/Mips/Linux.rs:156:15
[INFO] [stdout]     |
[INFO] [stdout] 156 |         let shamt = (imm&0b00000_00000_00000_11111).try_into ().unwrap ();
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ShellcodeGenerator` (lib test) due to 1 previous error; 14 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused variable: `filename`
[INFO] [stdout]    --> src/Mips/Linux.rs:281:30
[INFO] [stdout]     |
[INFO] [stdout] 281 |     pub fn OpenFile (&mut self, filename: &str, mode: u32)
[INFO] [stdout]     |                                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filename`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mode`
[INFO] [stdout]    --> src/Mips/Linux.rs:281:46
[INFO] [stdout]     |
[INFO] [stdout] 281 |     pub fn OpenFile (&mut self, filename: &str, mode: u32)
[INFO] [stdout]     |                                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_mode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filename`
[INFO] [stdout]    --> src/Mips/Linux.rs:286:34
[INFO] [stdout]     |
[INFO] [stdout] 286 |     pub fn ReadFromFile (&mut self, filename: &str, bufAddr: MipsRegister, size: usize)
[INFO] [stdout]     |                                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filename`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bufAddr`
[INFO] [stdout]    --> src/Mips/Linux.rs:286:50
[INFO] [stdout]     |
[INFO] [stdout] 286 |     pub fn ReadFromFile (&mut self, filename: &str, bufAddr: MipsRegister, size: usize)
[INFO] [stdout]     |                                                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bufAddr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]    --> src/Mips/Linux.rs:286:73
[INFO] [stdout]     |
[INFO] [stdout] 286 |     pub fn ReadFromFile (&mut self, filename: &str, bufAddr: MipsRegister, size: usize)
[INFO] [stdout]     |                                                                            ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filename`
[INFO] [stdout]    --> src/Mips/Linux.rs:326:33
[INFO] [stdout]     |
[INFO] [stdout] 326 |     pub fn WriteToFile (&mut self, filename: &str, bufAddr: MipsRegister, size: usize)
[INFO] [stdout]     |                                    ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filename`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bufAddr`
[INFO] [stdout]    --> src/Mips/Linux.rs:326:49
[INFO] [stdout]     |
[INFO] [stdout] 326 |     pub fn WriteToFile (&mut self, filename: &str, bufAddr: MipsRegister, size: usize)
[INFO] [stdout]     |                                                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bufAddr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]    --> src/Mips/Linux.rs:326:72
[INFO] [stdout]     |
[INFO] [stdout] 326 |     pub fn WriteToFile (&mut self, filename: &str, bufAddr: MipsRegister, size: usize)
[INFO] [stdout]     |                                                                           ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filename`
[INFO] [stdout]    --> src/Mips/Linux.rs:366:38
[INFO] [stdout]     |
[INFO] [stdout] 366 |     pub fn ReadLineFromFile (&mut self, filename: &str, bufAddr: MipsRegister, maxSize: usize)
[INFO] [stdout]     |                                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filename`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bufAddr`
[INFO] [stdout]    --> src/Mips/Linux.rs:366:54
[INFO] [stdout]     |
[INFO] [stdout] 366 |     pub fn ReadLineFromFile (&mut self, filename: &str, bufAddr: MipsRegister, maxSize: usize)
[INFO] [stdout]     |                                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bufAddr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `maxSize`
[INFO] [stdout]    --> src/Mips/Linux.rs:366:77
[INFO] [stdout]     |
[INFO] [stdout] 366 |     pub fn ReadLineFromFile (&mut self, filename: &str, bufAddr: MipsRegister, maxSize: usize)
[INFO] [stdout]     |                                                                                ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_maxSize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fd`
[INFO] [stdout]    --> src/Mips/Linux.rs:371:36
[INFO] [stdout]     |
[INFO] [stdout] 371 |     pub fn ReadLineFromFd (&mut self, fd: usize, bufAddr: MipsRegister, maxSize: usize)
[INFO] [stdout]     |                                       ^^ help: if this is intentional, prefix it with an underscore: `_fd`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bufAddr`
[INFO] [stdout]    --> src/Mips/Linux.rs:371:47
[INFO] [stdout]     |
[INFO] [stdout] 371 |     pub fn ReadLineFromFd (&mut self, fd: usize, bufAddr: MipsRegister, maxSize: usize)
[INFO] [stdout]     |                                                  ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bufAddr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `maxSize`
[INFO] [stdout]    --> src/Mips/Linux.rs:371:70
[INFO] [stdout]     |
[INFO] [stdout] 371 |     pub fn ReadLineFromFd (&mut self, fd: usize, bufAddr: MipsRegister, maxSize: usize)
[INFO] [stdout]     |                                                                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_maxSize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]    --> src/Mips/Linux.rs:156:15
[INFO] [stdout]     |
[INFO] [stdout] 156 |         let shamt = (imm&0b00000_00000_00000_11111).try_into ().unwrap ();
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ShellcodeGenerator` (lib) due to 1 previous error; 14 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "f86b33364b8a6510a215b0ee4f25f4f8c3b8f7f0194db19fc04e8d7f98c0ae96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f86b33364b8a6510a215b0ee4f25f4f8c3b8f7f0194db19fc04e8d7f98c0ae96", kill_on_drop: false }`
[INFO] [stdout] f86b33364b8a6510a215b0ee4f25f4f8c3b8f7f0194db19fc04e8d7f98c0ae96
