[INFO] cloning repository https://github.com/przempore/gbemulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/przempore/gbemulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprzempore%2Fgbemulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprzempore%2Fgbemulator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 88cba2612bc1bf1d9d49fc80c4e1c9d0a3df850d
[INFO] building przempore/gbemulator against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprzempore%2Fgbemulator" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/przempore/gbemulator on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/przempore/gbemulator
[INFO] finished tweaking git repo https://github.com/przempore/gbemulator
[INFO] tweaked toml for git repo https://github.com/przempore/gbemulator written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/przempore/gbemulator 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ed515e673d29074e8c9584078208cfef5567c0f88aa6c8431984e9788ea2b31c
[INFO] running `Command { std: "docker" "start" "-a" "ed515e673d29074e8c9584078208cfef5567c0f88aa6c8431984e9788ea2b31c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed515e673d29074e8c9584078208cfef5567c0f88aa6c8431984e9788ea2b31c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed515e673d29074e8c9584078208cfef5567c0f88aa6c8431984e9788ea2b31c", kill_on_drop: false }`
[INFO] [stdout] ed515e673d29074e8c9584078208cfef5567c0f88aa6c8431984e9788ea2b31c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc365687831344e7fab957a55ffd78b57665c50585bd12c02230dc3321b800b0
[INFO] running `Command { std: "docker" "start" "-a" "dc365687831344e7fab957a55ffd78b57665c50585bd12c02230dc3321b800b0", kill_on_drop: false }`
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling gbemulator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `paste::paste`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use paste::paste;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `FlagsRegisterPair` is never used
[INFO] [stdout]  --> src/main.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | trait FlagsRegisterPair {
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Registers` is never constructed
[INFO] [stdout]   --> src/main.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | struct Registers {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Registers` has a derived impl for the trait `Default`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]   --> src/main.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |         fn [<get_ $high_reg $low_reg>](&self) -> u16 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |         fn [<set_ $high_reg $low_reg>](&mut self, value: u16) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 | impl Registers {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] 56 |     register_pair!(a, f);
[INFO] [stdout]    |     -------------------- in this macro invocation
[INFO] [stdout] 57 |     register_pair!(b, c);
[INFO] [stdout]    |     -------------------- in this macro invocation
[INFO] [stdout] 58 |     register_pair!(d, e);
[INFO] [stdout]    |     -------------------- in this macro invocation
[INFO] [stdout] 59 |     register_pair!(h, l);
[INFO] [stdout]    |     -------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `register_pair` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Instruction` is never used
[INFO] [stdout]    --> src/main.rs:102:6
[INFO] [stdout]     |
[INFO] [stdout] 102 | enum Instruction {
[INFO] [stdout]     |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ArithmeticTarget` is never used
[INFO] [stdout]    --> src/main.rs:121:6
[INFO] [stdout]     |
[INFO] [stdout] 121 | enum ArithmeticTarget {
[INFO] [stdout]     |      ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ADDHLTarget` is never used
[INFO] [stdout]    --> src/main.rs:131:6
[INFO] [stdout]     |
[INFO] [stdout] 131 | enum ADDHLTarget {
[INFO] [stdout]     |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CPU` is never constructed
[INFO] [stdout]    --> src/main.rs:138:8
[INFO] [stdout]     |
[INFO] [stdout] 138 | struct CPU {
[INFO] [stdout]     |        ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CPU` has a derived impl for the trait `Default`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/main.rs:143:8
[INFO] [stdout]     |
[INFO] [stdout] 142 | impl CPU {
[INFO] [stdout]     | -------- methods in this implementation
[INFO] [stdout] 143 |     fn execute(&mut self, instruction: Instruction) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 232 |     fn get_value_from_target(&self, target: ArithmeticTarget) -> u8 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 244 |     fn add(&mut self, value: u8) -> u8 {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 254 |     fn addhl(&mut self, value: u16) -> u16 {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 265 |     fn adc(&mut self, value: u8) -> u8 {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 277 |     fn sub(&mut self, value: u8) -> u8 {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 287 |     fn sbc(&mut self, value: u8) -> u8 {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 298 |     fn inc(&mut self, target: u8) -> u8 {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 309 |     fn dec(&mut self, target: u8) -> u8 {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `Command { std: "docker" "inspect" "dc365687831344e7fab957a55ffd78b57665c50585bd12c02230dc3321b800b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc365687831344e7fab957a55ffd78b57665c50585bd12c02230dc3321b800b0", kill_on_drop: false }`
[INFO] [stdout] dc365687831344e7fab957a55ffd78b57665c50585bd12c02230dc3321b800b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa6fc417df9347577cef8259d43b29535a4f36622bb279ee8006ca8241e53e0d
[INFO] running `Command { std: "docker" "start" "-a" "aa6fc417df9347577cef8259d43b29535a4f36622bb279ee8006ca8241e53e0d", kill_on_drop: false }`
[INFO] [stderr]    Compiling gbemulator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `paste::paste`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use paste::paste;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `set_af` and `set_de` are never used
[INFO] [stdout]   --> src/main.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |         fn [<set_ $high_reg $low_reg>](&mut self, value: u16) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 | impl Registers {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] 56 |     register_pair!(a, f);
[INFO] [stdout]    |     -------------------- in this macro invocation
[INFO] [stdout] 57 |     register_pair!(b, c);
[INFO] [stdout] 58 |     register_pair!(d, e);
[INFO] [stdout]    |     -------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `register_pair` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `E`, `H`, and `L` are never constructed
[INFO] [stdout]    --> src/main.rs:126:5
[INFO] [stdout]     |
[INFO] [stdout] 121 | enum ArithmeticTarget {
[INFO] [stdout]     |      ---------------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 126 |     E,
[INFO] [stdout]     |     ^
[INFO] [stdout] 127 |     H,
[INFO] [stdout]     |     ^
[INFO] [stdout] 128 |     L,
[INFO] [stdout]     |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `BC` and `DE` are never constructed
[INFO] [stdout]    --> src/main.rs:132:5
[INFO] [stdout]     |
[INFO] [stdout] 131 | enum ADDHLTarget {
[INFO] [stdout]     |      ----------- variants in this enum
[INFO] [stdout] 132 |     BC,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 133 |     DE,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "aa6fc417df9347577cef8259d43b29535a4f36622bb279ee8006ca8241e53e0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa6fc417df9347577cef8259d43b29535a4f36622bb279ee8006ca8241e53e0d", kill_on_drop: false }`
[INFO] [stdout] aa6fc417df9347577cef8259d43b29535a4f36622bb279ee8006ca8241e53e0d