[INFO] cloning repository https://github.com/inda21plusplus/thstro-simple-interpreter [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/inda21plusplus/thstro-simple-interpreter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finda21plusplus%2Fthstro-simple-interpreter", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finda21plusplus%2Fthstro-simple-interpreter'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 83094ccb04b7b07cf68fe7277c0b1e62f6fe8db2 [INFO] checking inda21plusplus/thstro-simple-interpreter 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%2Finda21plusplus%2Fthstro-simple-interpreter" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/inda21plusplus/thstro-simple-interpreter [INFO] finished tweaking git repo https://github.com/inda21plusplus/thstro-simple-interpreter [INFO] tweaked toml for git repo https://github.com/inda21plusplus/thstro-simple-interpreter written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/inda21plusplus/thstro-simple-interpreter 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/inda21plusplus/thstro-simple-interpreter 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 299b75560e7905bc94e68070f1747b759cec2b79cb8735f9c17da5200229accb [INFO] running `Command { std: "docker" "start" "-a" "299b75560e7905bc94e68070f1747b759cec2b79cb8735f9c17da5200229accb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "299b75560e7905bc94e68070f1747b759cec2b79cb8735f9c17da5200229accb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "299b75560e7905bc94e68070f1747b759cec2b79cb8735f9c17da5200229accb", kill_on_drop: false }` [INFO] [stdout] 299b75560e7905bc94e68070f1747b759cec2b79cb8735f9c17da5200229accb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 7a2a54ed9762f2278e02f092666258d757bf94beea3ba85f7ca5586a8a5b9195 [INFO] running `Command { std: "docker" "start" "-a" "7a2a54ed9762f2278e02f092666258d757bf94beea3ba85f7ca5586a8a5b9195", kill_on_drop: false }` [INFO] [stderr] Checking malbolge v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `n` [INFO] [stdout] --> src/main.rs:219:9 [INFO] [stdout] | [INFO] [stdout] 219 | let n = interpreter.init_mem(&src).unwrap(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `op` is never read [INFO] [stdout] --> src/main.rs:123:5 [INFO] [stdout] | [INFO] [stdout] 122 | struct InvalidOpCode { [INFO] [stdout] | ------------- field in this struct [INFO] [stdout] 123 | op: u8, [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `InvalidOpCode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `as_tri_str` and `from_str` are never used [INFO] [stdout] --> src/main.rs:183:8 [INFO] [stdout] | [INFO] [stdout] 153 | impl Word { [INFO] [stdout] | --------- associated items in this implementation [INFO] [stdout] ... [INFO] [stdout] 183 | fn as_tri_str(&self) -> String { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 194 | fn from_str(s: &str) -> Result { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:34:22 [INFO] [stdout] | [INFO] [stdout] 34 | print!("{}", char::try_from(a.0 as u8 % 128).unwrap_or('\u{FFFD}')); [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: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:216:5 [INFO] [stdout] | [INFO] [stdout] 216 | f.read_to_string(&mut src); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 216 | let _ = f.read_to_string(&mut src); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n` [INFO] [stdout] --> src/main.rs:219:9 [INFO] [stdout] | [INFO] [stdout] 219 | let n = interpreter.init_mem(&src).unwrap(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `op` is never read [INFO] [stdout] --> src/main.rs:123:5 [INFO] [stdout] | [INFO] [stdout] 122 | struct InvalidOpCode { [INFO] [stdout] | ------------- field in this struct [INFO] [stdout] 123 | op: u8, [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `InvalidOpCode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `as_tri_str` and `from_str` are never used [INFO] [stdout] --> src/main.rs:183:8 [INFO] [stdout] | [INFO] [stdout] 153 | impl Word { [INFO] [stdout] | --------- associated items in this implementation [INFO] [stdout] ... [INFO] [stdout] 183 | fn as_tri_str(&self) -> String { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 194 | fn from_str(s: &str) -> Result { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:34:22 [INFO] [stdout] | [INFO] [stdout] 34 | print!("{}", char::try_from(a.0 as u8 % 128).unwrap_or('\u{FFFD}')); [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: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:216:5 [INFO] [stdout] | [INFO] [stdout] 216 | f.read_to_string(&mut src); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 216 | let _ = f.read_to_string(&mut src); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `malbolge` (bin "malbolge" test) due to 1 previous error; 4 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `malbolge` (bin "malbolge") due to 1 previous error; 4 warnings emitted [INFO] running `Command { std: "docker" "inspect" "7a2a54ed9762f2278e02f092666258d757bf94beea3ba85f7ca5586a8a5b9195", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7a2a54ed9762f2278e02f092666258d757bf94beea3ba85f7ca5586a8a5b9195", kill_on_drop: false }` [INFO] [stdout] 7a2a54ed9762f2278e02f092666258d757bf94beea3ba85f7ca5586a8a5b9195