[INFO] cloning repository https://github.com/0xB4DC0D3/nestify
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0xB4DC0D3/nestify" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xB4DC0D3%2Fnestify", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xB4DC0D3%2Fnestify'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2ab99e29b21a01e37243c9054a946fde63352ddc
[INFO] checking 0xB4DC0D3/nestify against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xB4DC0D3%2Fnestify" "/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/0xB4DC0D3/nestify on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/0xB4DC0D3/nestify
[INFO] finished tweaking git repo https://github.com/0xB4DC0D3/nestify
[INFO] tweaked toml for git repo https://github.com/0xB4DC0D3/nestify written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/0xB4DC0D3/nestify 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] af5d2d8a954387694f2c29e13e630a84846f12ba83fbf394a5c7118c387810df
[INFO] running `Command { std: "docker" "start" "-a" "af5d2d8a954387694f2c29e13e630a84846f12ba83fbf394a5c7118c387810df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af5d2d8a954387694f2c29e13e630a84846f12ba83fbf394a5c7118c387810df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af5d2d8a954387694f2c29e13e630a84846f12ba83fbf394a5c7118c387810df", kill_on_drop: false }`
[INFO] [stdout] af5d2d8a954387694f2c29e13e630a84846f12ba83fbf394a5c7118c387810df
[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" "-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5cfbd3a15170095a7109b8d20ce5345148b73393b1a8d501677187361404e267
[INFO] running `Command { std: "docker" "start" "-a" "5cfbd3a15170095a7109b8d20ce5345148b73393b1a8d501677187361404e267", kill_on_drop: false }`
[INFO] [stderr]    Compiling version-compare v0.1.1
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling sdl2 v0.35.2
[INFO] [stderr]    Compiling sdl2-sys v0.35.2
[INFO] [stderr]     Checking nestify v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `odd_cycle`
[INFO] [stdout]     --> src/core/cpu.rs:1534:29
[INFO] [stdout]      |
[INFO] [stdout] 1534 |                         let odd_cycle = self.clock.borrow().get_cycles() % 2;
[INFO] [stdout]      |                             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_odd_cycle`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `MemoryMap` is never used
[INFO] [stdout]  --> src/core/memorymap/mod.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub trait MemoryMap: Memory {}
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `odd_cycle`
[INFO] [stdout]     --> src/core/cpu.rs:1534:29
[INFO] [stdout]      |
[INFO] [stdout] 1534 |                         let odd_cycle = self.clock.borrow().get_cycles() % 2;
[INFO] [stdout]      |                             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_odd_cycle`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `MemoryMap` is never used
[INFO] [stdout]  --> src/core/memorymap/mod.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub trait MemoryMap: Memory {}
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.99s
[INFO] running `Command { std: "docker" "inspect" "5cfbd3a15170095a7109b8d20ce5345148b73393b1a8d501677187361404e267", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cfbd3a15170095a7109b8d20ce5345148b73393b1a8d501677187361404e267", kill_on_drop: false }`
[INFO] [stdout] 5cfbd3a15170095a7109b8d20ce5345148b73393b1a8d501677187361404e267
[INFO] checking 0xB4DC0D3/nestify against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xB4DC0D3%2Fnestify" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/0xB4DC0D3/nestify on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/0xB4DC0D3/nestify
[INFO] finished tweaking git repo https://github.com/0xB4DC0D3/nestify
[INFO] tweaked toml for git repo https://github.com/0xB4DC0D3/nestify written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/0xB4DC0D3/nestify 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3b95b1820271a8d0613f4fba87b510f78f55b7006d48003470f558a2b34a09c6
[INFO] running `Command { std: "docker" "start" "-a" "3b95b1820271a8d0613f4fba87b510f78f55b7006d48003470f558a2b34a09c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3b95b1820271a8d0613f4fba87b510f78f55b7006d48003470f558a2b34a09c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b95b1820271a8d0613f4fba87b510f78f55b7006d48003470f558a2b34a09c6", kill_on_drop: false }`
[INFO] [stdout] 3b95b1820271a8d0613f4fba87b510f78f55b7006d48003470f558a2b34a09c6
[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" "-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e796232964fd0b9569d4c4e8c893eef5ee01a4b902c7ae7ef797c99d9524226f
[INFO] running `Command { std: "docker" "start" "-a" "e796232964fd0b9569d4c4e8c893eef5ee01a4b902c7ae7ef797c99d9524226f", kill_on_drop: false }`
[INFO] [stderr]    Compiling version-compare v0.1.1
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling sdl2 v0.35.2
[INFO] [stderr]    Compiling sdl2-sys v0.35.2
[INFO] [stderr]     Checking nestify v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `odd_cycle`
[INFO] [stdout]     --> src/core/cpu.rs:1534:29
[INFO] [stdout]      |
[INFO] [stdout] 1534 |                         let odd_cycle = self.clock.borrow().get_cycles() % 2;
[INFO] [stdout]      |                             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_odd_cycle`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `MemoryMap` is never used
[INFO] [stdout]  --> src/core/memorymap/mod.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub trait MemoryMap: Memory {}
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `odd_cycle`
[INFO] [stdout]     --> src/core/cpu.rs:1534:29
[INFO] [stdout]      |
[INFO] [stdout] 1534 |                         let odd_cycle = self.clock.borrow().get_cycles() % 2;
[INFO] [stdout]      |                             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_odd_cycle`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `MemoryMap` is never used
[INFO] [stdout]  --> src/core/memorymap/mod.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub trait MemoryMap: Memory {}
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.88s
[INFO] running `Command { std: "docker" "inspect" "e796232964fd0b9569d4c4e8c893eef5ee01a4b902c7ae7ef797c99d9524226f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e796232964fd0b9569d4c4e8c893eef5ee01a4b902c7ae7ef797c99d9524226f", kill_on_drop: false }`
[INFO] [stdout] e796232964fd0b9569d4c4e8c893eef5ee01a4b902c7ae7ef797c99d9524226f