[INFO] cloning repository https://github.com/L4852/cpusim [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/L4852/cpusim" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FL4852%2Fcpusim", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FL4852%2Fcpusim'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7e9ed7b047fcccd9c4627302d19492a36f545a17 [INFO] checking L4852/cpusim 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%2FL4852%2Fcpusim" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/L4852/cpusim [INFO] finished tweaking git repo https://github.com/L4852/cpusim [INFO] tweaked toml for git repo https://github.com/L4852/cpusim written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/L4852/cpusim 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/L4852/cpusim 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] 1530e42a10a25d3f9d854310b73b33e33e464344f15cfbc0034e4dbac3a1cebb [INFO] running `Command { std: "docker" "start" "-a" "1530e42a10a25d3f9d854310b73b33e33e464344f15cfbc0034e4dbac3a1cebb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1530e42a10a25d3f9d854310b73b33e33e464344f15cfbc0034e4dbac3a1cebb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1530e42a10a25d3f9d854310b73b33e33e464344f15cfbc0034e4dbac3a1cebb", kill_on_drop: false }` [INFO] [stdout] 1530e42a10a25d3f9d854310b73b33e33e464344f15cfbc0034e4dbac3a1cebb [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] 625f57e87ddb4d6e44db81a9b959fbebf3871a56af1dd1cbd8f9587222bc20b9 [INFO] running `Command { std: "docker" "start" "-a" "625f57e87ddb4d6e44db81a9b959fbebf3871a56af1dd1cbd8f9587222bc20b9", kill_on_drop: false }` [INFO] [stderr] Checking cpusim v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: method `demo` is never used [INFO] [stdout] --> src/main.rs:255:8 [INFO] [stdout] | [INFO] [stdout] 17 | impl Processor { [INFO] [stdout] | -------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 255 | fn demo(&mut self) { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `print_program_as_assembly` is never used [INFO] [stdout] --> src/main.rs:526:4 [INFO] [stdout] | [INFO] [stdout] 526 | fn print_program_as_assembly(program: &Vec) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `cpusim` (bin "cpusim") due to 1 previous error; 7 warnings emitted [INFO] [stdout] warning: function `print_raw_bytes_as_hex` is never used [INFO] [stdout] --> src/main.rs:532:4 [INFO] [stdout] | [INFO] [stdout] 532 | fn print_raw_bytes_as_hex(bytes: &Vec) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: function `print_machine_code_bin` is never used [INFO] [stdout] --> src/main.rs:538:4 [INFO] [stdout] | [INFO] [stdout] 538 | fn print_machine_code_bin(machine_code: &Vec) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `machine_code_as_bin_raw` is never used [INFO] [stdout] --> src/main.rs:545:4 [INFO] [stdout] | [INFO] [stdout] 545 | fn machine_code_as_bin_raw(program: &Vec) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `bin_raw_as_machine_code` is never used [INFO] [stdout] --> src/main.rs:551:4 [INFO] [stdout] | [INFO] [stdout] 551 | fn bin_raw_as_machine_code(bytes: &Vec) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `write_bytes_to_file` is never used [INFO] [stdout] --> src/main.rs:559:4 [INFO] [stdout] | [INFO] [stdout] 559 | fn write_bytes_to_file(data: Vec) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:270:19 [INFO] [stdout] | [INFO] [stdout] 270 | let program = program_str.parse::().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] warning: method `demo` is never used [INFO] [stdout] --> src/main.rs:255:8 [INFO] [stdout] | [INFO] [stdout] 17 | impl Processor { [INFO] [stdout] | -------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 255 | fn demo(&mut self) { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `print_program_as_assembly` is never used [INFO] [stdout] --> src/main.rs:526:4 [INFO] [stdout] | [INFO] [stdout] 526 | fn print_program_as_assembly(program: &Vec) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `print_raw_bytes_as_hex` is never used [INFO] [stdout] --> src/main.rs:532:4 [INFO] [stdout] | [INFO] [stdout] 532 | fn print_raw_bytes_as_hex(bytes: &Vec) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `print_machine_code_bin` is never used [INFO] [stdout] --> src/main.rs:538:4 [INFO] [stdout] | [INFO] [stdout] 538 | fn print_machine_code_bin(machine_code: &Vec) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `machine_code_as_bin_raw` is never used [INFO] [stdout] --> src/main.rs:545:4 [INFO] [stdout] | [INFO] [stdout] 545 | fn machine_code_as_bin_raw(program: &Vec) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `bin_raw_as_machine_code` is never used [INFO] [stdout] --> src/main.rs:551:4 [INFO] [stdout] | [INFO] [stdout] 551 | fn bin_raw_as_machine_code(bytes: &Vec) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `write_bytes_to_file` is never used [INFO] [stdout] --> src/main.rs:559:4 [INFO] [stdout] | [INFO] [stdout] 559 | fn write_bytes_to_file(data: Vec) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:270:19 [INFO] [stdout] | [INFO] [stdout] 270 | let program = program_str.parse::().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 `cpusim` (bin "cpusim" test) due to 1 previous error; 7 warnings emitted [INFO] running `Command { std: "docker" "inspect" "625f57e87ddb4d6e44db81a9b959fbebf3871a56af1dd1cbd8f9587222bc20b9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "625f57e87ddb4d6e44db81a9b959fbebf3871a56af1dd1cbd8f9587222bc20b9", kill_on_drop: false }` [INFO] [stdout] 625f57e87ddb4d6e44db81a9b959fbebf3871a56af1dd1cbd8f9587222bc20b9