[INFO] cloning repository https://github.com/nexes/Chip-8
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nexes/Chip-8" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnexes%2FChip-8", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnexes%2FChip-8'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e23684a66010182f071e5da66a4f8021a49ccee5
[INFO] building nexes/Chip-8 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%2Fnexes%2FChip-8" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nexes/Chip-8 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/nexes/Chip-8
[INFO] finished tweaking git repo https://github.com/nexes/Chip-8
[INFO] tweaked toml for git repo https://github.com/nexes/Chip-8 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/nexes/Chip-8 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] ebab4c58e5f3ad22893a575717c1add707c5891d77f64cc2499c26f5236ea9f6
[INFO] running `Command { std: "docker" "start" "-a" "ebab4c58e5f3ad22893a575717c1add707c5891d77f64cc2499c26f5236ea9f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ebab4c58e5f3ad22893a575717c1add707c5891d77f64cc2499c26f5236ea9f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebab4c58e5f3ad22893a575717c1add707c5891d77f64cc2499c26f5236ea9f6", kill_on_drop: false }`
[INFO] [stdout] ebab4c58e5f3ad22893a575717c1add707c5891d77f64cc2499c26f5236ea9f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] ad9a91099b91cd831a461c6078cb33094761114f92edff52bdce09322429eba4
[INFO] running `Command { std: "docker" "start" "-a" "ad9a91099b91cd831a461c6078cb33094761114f92edff52bdce09322429eba4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling version-compare v0.1.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling sdl2 v0.35.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling sdl2-sys v0.35.2
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling chip8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `height` is never read
[INFO] [stdout]   --> src/lib/display.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub struct Display {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 57 |     width: i32,
[INFO] [stdout] 58 |     height: i32,
[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/lib/memory.rs:140:19
[INFO] [stdout]     |
[INFO] [stdout] 13  | impl Memory {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 140 |     pub(crate) fn print_stack(&self) {}
[INFO] [stdout]     |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `sound` is never read
[INFO] [stdout]   --> src/lib/system.rs:12:16
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub(crate) struct Flags {
[INFO] [stdout]    |                   ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 12 |     pub(crate) sound: bool,
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.33s
[INFO] running `Command { std: "docker" "inspect" "ad9a91099b91cd831a461c6078cb33094761114f92edff52bdce09322429eba4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad9a91099b91cd831a461c6078cb33094761114f92edff52bdce09322429eba4", kill_on_drop: false }`
[INFO] [stdout] ad9a91099b91cd831a461c6078cb33094761114f92edff52bdce09322429eba4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 7e88915d8d29eb80c339c547c0ea5ea9883105b4b70d542bb545e607e768f54d
[INFO] running `Command { std: "docker" "start" "-a" "7e88915d8d29eb80c339c547c0ea5ea9883105b4b70d542bb545e607e768f54d", kill_on_drop: false }`
[INFO] [stdout] warning: field `height` is never read
[INFO] [stdout]   --> src/lib/display.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub struct Display {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 57 |     width: i32,
[INFO] [stdout] 58 |     height: i32,
[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/lib/memory.rs:140:19
[INFO] [stdout]     |
[INFO] [stdout] 13  | impl Memory {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 140 |     pub(crate) fn print_stack(&self) {}
[INFO] [stdout]     |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `sound` is never read
[INFO] [stdout]   --> src/lib/system.rs:12:16
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub(crate) struct Flags {
[INFO] [stdout]    |                   ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 12 |     pub(crate) sound: bool,
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling chip8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `height` is never read
[INFO] [stdout]   --> src/lib/display.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub struct Display {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 57 |     width: i32,
[INFO] [stdout] 58 |     height: i32,
[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/lib/memory.rs:140:19
[INFO] [stdout]     |
[INFO] [stdout] 13  | impl Memory {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 140 |     pub(crate) fn print_stack(&self) {}
[INFO] [stdout]     |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `sound` is never read
[INFO] [stdout]   --> src/lib/system.rs:12:16
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub(crate) struct Flags {
[INFO] [stdout]    |                   ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 12 |     pub(crate) sound: bool,
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "7e88915d8d29eb80c339c547c0ea5ea9883105b4b70d542bb545e607e768f54d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e88915d8d29eb80c339c547c0ea5ea9883105b4b70d542bb545e607e768f54d", kill_on_drop: false }`
[INFO] [stdout] 7e88915d8d29eb80c339c547c0ea5ea9883105b4b70d542bb545e607e768f54d