[INFO] cloning repository https://github.com/rileylyman/riscv-in-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rileylyman/riscv-in-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frileylyman%2Friscv-in-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frileylyman%2Friscv-in-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e0c600e2b65322873903154e653d99ebae7f0e91 [INFO] checking rileylyman/riscv-in-rust against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frileylyman%2Friscv-in-rust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/rileylyman/riscv-in-rust on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/rileylyman/riscv-in-rust [INFO] finished tweaking git repo https://github.com/rileylyman/riscv-in-rust [INFO] tweaked toml for git repo https://github.com/rileylyman/riscv-in-rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/rileylyman/riscv-in-rust 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e6ce3a7c998db489d1a4d56e465804d76f1bd76146893de4c3f27e544e2dc317 [INFO] running `Command { std: "docker" "start" "-a" "e6ce3a7c998db489d1a4d56e465804d76f1bd76146893de4c3f27e544e2dc317", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e6ce3a7c998db489d1a4d56e465804d76f1bd76146893de4c3f27e544e2dc317", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e6ce3a7c998db489d1a4d56e465804d76f1bd76146893de4c3f27e544e2dc317", kill_on_drop: false }` [INFO] [stdout] e6ce3a7c998db489d1a4d56e465804d76f1bd76146893de4c3f27e544e2dc317 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] de020eaf0665a1e61afc00586b2411871c4e8437b8f4381ef40e4512135a9e57 [INFO] running `Command { std: "docker" "start" "-a" "de020eaf0665a1e61afc00586b2411871c4e8437b8f4381ef40e4512135a9e57", kill_on_drop: false }` [INFO] [stderr] Checking argparse v0.2.2 [INFO] [stderr] Checking riscv-emulator v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/implementer/rtype.rs:142:63 [INFO] [stdout] | [INFO] [stdout] 142 | return Err(ExecutionError::Extension("M".into()));; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/implementer/rtype.rs:142:63 [INFO] [stdout] | [INFO] [stdout] 142 | return Err(ExecutionError::Extension("M".into()));; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `machine_code` [INFO] [stdout] --> src/assembler/mod.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | let machine_code = assemble(&base_instructions); [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_machine_code` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `mem` [INFO] [stdout] --> src/assembler/mod.rs:7:42 [INFO] [stdout] | [INFO] [stdout] 7 | pub fn assemble_and_load(filepath: &str, mem: &mut [u8], imem: &mut [u8]) -> () { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_mem` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `imem` [INFO] [stdout] --> src/assembler/mod.rs:7:58 [INFO] [stdout] | [INFO] [stdout] 7 | pub fn assemble_and_load(filepath: &str, mem: &mut [u8], imem: &mut [u8]) -> () { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_imem` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `instructions` [INFO] [stdout] --> src/assembler/mod.rs:15:13 [INFO] [stdout] | [INFO] [stdout] 15 | fn assemble(instructions: &Vec) { [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_instructions` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `machine_code` [INFO] [stdout] --> src/assembler/mod.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | let machine_code = assemble(&base_instructions); [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_machine_code` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `mem` [INFO] [stdout] --> src/assembler/mod.rs:7:42 [INFO] [stdout] | [INFO] [stdout] 7 | pub fn assemble_and_load(filepath: &str, mem: &mut [u8], imem: &mut [u8]) -> () { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_mem` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `imem` [INFO] [stdout] --> src/assembler/mod.rs:7:58 [INFO] [stdout] | [INFO] [stdout] 7 | pub fn assemble_and_load(filepath: &str, mem: &mut [u8], imem: &mut [u8]) -> () { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_imem` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `instructions` [INFO] [stdout] --> src/assembler/mod.rs:15:13 [INFO] [stdout] | [INFO] [stdout] 15 | fn assemble(instructions: &Vec) { [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_instructions` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `INST_WIDTH` is never used [INFO] [stdout] --> src/assembler/mod.rs:5:7 [INFO] [stdout] | [INFO] [stdout] 5 | const INST_WIDTH: usize = 32; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `INST_WIDTH` is never used [INFO] [stdout] --> src/assembler/mod.rs:5:7 [INFO] [stdout] | [INFO] [stdout] 5 | const INST_WIDTH: usize = 32; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.28s [INFO] running `Command { std: "docker" "inspect" "de020eaf0665a1e61afc00586b2411871c4e8437b8f4381ef40e4512135a9e57", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "de020eaf0665a1e61afc00586b2411871c4e8437b8f4381ef40e4512135a9e57", kill_on_drop: false }` [INFO] [stdout] de020eaf0665a1e61afc00586b2411871c4e8437b8f4381ef40e4512135a9e57 [INFO] checking rileylyman/riscv-in-rust against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frileylyman%2Friscv-in-rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/rileylyman/riscv-in-rust on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/rileylyman/riscv-in-rust [INFO] finished tweaking git repo https://github.com/rileylyman/riscv-in-rust [INFO] tweaked toml for git repo https://github.com/rileylyman/riscv-in-rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/rileylyman/riscv-in-rust 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] cc6aaa766e0d0dec4b789a2a01db96fa2277873e0b9f8d9f893b961b8804ca48 [INFO] running `Command { std: "docker" "start" "-a" "cc6aaa766e0d0dec4b789a2a01db96fa2277873e0b9f8d9f893b961b8804ca48", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cc6aaa766e0d0dec4b789a2a01db96fa2277873e0b9f8d9f893b961b8804ca48", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cc6aaa766e0d0dec4b789a2a01db96fa2277873e0b9f8d9f893b961b8804ca48", kill_on_drop: false }` [INFO] [stdout] cc6aaa766e0d0dec4b789a2a01db96fa2277873e0b9f8d9f893b961b8804ca48 [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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6e3b0574c63caacf4aaf96a8f65944edd92767ac697d30f4ac8365443bcb1425 [INFO] running `Command { std: "docker" "start" "-a" "6e3b0574c63caacf4aaf96a8f65944edd92767ac697d30f4ac8365443bcb1425", kill_on_drop: false }` [INFO] [stderr] Checking argparse v0.2.2 [INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/argparse-0.2.2/src/parser.rs:206:18 [INFO] [stdout] | [INFO] [stdout] 206 | _ => panic!(), [INFO] [stdout] | ^^^^^^^^ cannot satisfy `_ -> _` [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/argparse-0.2.2/src/parser.rs:340:29 [INFO] [stdout] | [INFO] [stdout] 340 | None => match self.parser.catchall_argument { [INFO] [stdout] | _____________________________^ [INFO] [stdout] 341 | | Some(ref option) => { [INFO] [stdout] 342 | | opt = option; [INFO] [stdout] 343 | | break; [INFO] [stdout] ... | [INFO] [stdout] 346 | | "Unexpected argument {}", arg)), [INFO] [stdout] 347 | | } [INFO] [stdout] | |_____________________^ cannot satisfy `_ -> _` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/argparse-0.2.2/src/parser.rs:809:22 [INFO] [stdout] | [INFO] [stdout] 809 | .map_err(|c| exit(c)) [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] help: try giving this closure an explicit return type [INFO] [stdout] | [INFO] [stdout] 809 | .map_err(|c| -> /* Type */ { exit(c) }) [INFO] [stdout] | +++++++++++++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 3 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0282, E0284. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `argparse` (lib) due to 4 previous errors [INFO] running `Command { std: "docker" "inspect" "6e3b0574c63caacf4aaf96a8f65944edd92767ac697d30f4ac8365443bcb1425", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6e3b0574c63caacf4aaf96a8f65944edd92767ac697d30f4ac8365443bcb1425", kill_on_drop: false }` [INFO] [stdout] 6e3b0574c63caacf4aaf96a8f65944edd92767ac697d30f4ac8365443bcb1425