[INFO] cloning repository https://github.com/emersonmde/double_barrel [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emersonmde/double_barrel" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femersonmde%2Fdouble_barrel", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femersonmde%2Fdouble_barrel'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 21e17d01996e568fd16fff959e8e318aa2586eb1 [INFO] checking emersonmde/double_barrel against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femersonmde%2Fdouble_barrel" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/emersonmde/double_barrel 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/emersonmde/double_barrel [INFO] finished tweaking git repo https://github.com/emersonmde/double_barrel [INFO] tweaked toml for git repo https://github.com/emersonmde/double_barrel written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/emersonmde/double_barrel 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-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] ae1ab24f54194d2115a564455ff44e0886e09dc952b16bab986bc36ebab278bc [INFO] running `Command { std: "docker" "start" "-a" "ae1ab24f54194d2115a564455ff44e0886e09dc952b16bab986bc36ebab278bc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ae1ab24f54194d2115a564455ff44e0886e09dc952b16bab986bc36ebab278bc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ae1ab24f54194d2115a564455ff44e0886e09dc952b16bab986bc36ebab278bc", kill_on_drop: false }` [INFO] [stdout] ae1ab24f54194d2115a564455ff44e0886e09dc952b16bab986bc36ebab278bc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] e45e713a891cd1b4e7c73b7a5b0e88cc184fcbd0322df55fc178bda4aee7a9d9 [INFO] running `Command { std: "docker" "start" "-a" "e45e713a891cd1b4e7c73b7a5b0e88cc184fcbd0322df55fc178bda4aee7a9d9", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.112 [INFO] [stderr] Compiling syn v1.0.84 [INFO] [stderr] Compiling parking_lot_core v0.8.5 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Checking smallvec v1.7.0 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Checking pin-project-lite v0.2.7 [INFO] [stderr] Checking once_cell v1.9.0 [INFO] [stderr] Checking instant v0.1.12 [INFO] [stderr] Checking lock_api v0.4.5 [INFO] [stderr] Compiling quote v1.0.14 [INFO] [stderr] Checking signal-hook-registry v1.4.0 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking mio v0.7.14 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Checking parking_lot v0.11.2 [INFO] [stderr] Compiling tokio-macros v1.7.0 [INFO] [stderr] Checking tokio v1.15.0 [INFO] [stderr] Checking double_barrel v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::error::Error` [INFO] [stdout] --> src/lib.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::error::Error; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `ByteOrder`, `LittleEndian` [INFO] [stdout] --> src/lib.rs:2:17 [INFO] [stdout] | [INFO] [stdout] 2 | use byteorder::{ByteOrder, LittleEndian}; [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::error::Error` [INFO] [stdout] --> src/lib.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::error::Error; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `ByteOrder`, `LittleEndian` [INFO] [stdout] --> src/lib.rs:2:17 [INFO] [stdout] | [INFO] [stdout] 2 | use byteorder::{ByteOrder, LittleEndian}; [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `file_name` is never read [INFO] [stdout] --> src/lib.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 18 | pub struct DoubleBarrel { [INFO] [stdout] | ------------ field in this struct [INFO] [stdout] 19 | file_name: String, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `print_stack` is never used [INFO] [stdout] --> src/mmu.rs:106:12 [INFO] [stdout] | [INFO] [stdout] 28 | impl MemoryManagementUnit { [INFO] [stdout] | ------------------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 106 | pub fn print_stack(&self) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `print_registers` is never used [INFO] [stdout] --> src/cpu.rs:38:12 [INFO] [stdout] | [INFO] [stdout] 28 | impl CPU { [INFO] [stdout] | -------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 38 | pub fn print_registers(&self) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `instruction_register` is never read [INFO] [stdout] --> src/lcd.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 5 | pub struct LiquidCrystalDisplay { [INFO] [stdout] | -------------------- field in this struct [INFO] [stdout] 6 | instruction_register: u8, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `file_name` is never read [INFO] [stdout] --> src/lib.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 18 | pub struct DoubleBarrel { [INFO] [stdout] | ------------ field in this struct [INFO] [stdout] 19 | file_name: String, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `print_stack` is never used [INFO] [stdout] --> src/mmu.rs:106:12 [INFO] [stdout] | [INFO] [stdout] 28 | impl MemoryManagementUnit { [INFO] [stdout] | ------------------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 106 | pub fn print_stack(&self) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `print_registers` is never used [INFO] [stdout] --> src/cpu.rs:38:12 [INFO] [stdout] | [INFO] [stdout] 28 | impl CPU { [INFO] [stdout] | -------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 38 | pub fn print_registers(&self) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `instruction_register` is never read [INFO] [stdout] --> src/lcd.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 5 | pub struct LiquidCrystalDisplay { [INFO] [stdout] | -------------------- field in this struct [INFO] [stdout] 6 | instruction_register: u8, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [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 5.01s [INFO] running `Command { std: "docker" "inspect" "e45e713a891cd1b4e7c73b7a5b0e88cc184fcbd0322df55fc178bda4aee7a9d9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e45e713a891cd1b4e7c73b7a5b0e88cc184fcbd0322df55fc178bda4aee7a9d9", kill_on_drop: false }` [INFO] [stdout] e45e713a891cd1b4e7c73b7a5b0e88cc184fcbd0322df55fc178bda4aee7a9d9