[INFO] cloning repository https://github.com/sasuseso/x86_emu
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sasuseso/x86_emu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsasuseso%2Fx86_emu", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsasuseso%2Fx86_emu'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bc65bfbba7836d36ff1e830cdee82a1a21a8a8e8
[INFO] checking sasuseso/x86_emu against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsasuseso%2Fx86_emu" "/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/sasuseso/x86_emu 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/sasuseso/x86_emu
[INFO] finished tweaking git repo https://github.com/sasuseso/x86_emu
[INFO] tweaked toml for git repo https://github.com/sasuseso/x86_emu written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/sasuseso/x86_emu 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] [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf96efabf137d7cccf272214fe6ad546f88214502e3c09645ec571730e10c8f9
[INFO] running `Command { std: "docker" "start" "-a" "cf96efabf137d7cccf272214fe6ad546f88214502e3c09645ec571730e10c8f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf96efabf137d7cccf272214fe6ad546f88214502e3c09645ec571730e10c8f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf96efabf137d7cccf272214fe6ad546f88214502e3c09645ec571730e10c8f9", kill_on_drop: false }`
[INFO] [stdout] cf96efabf137d7cccf272214fe6ad546f88214502e3c09645ec571730e10c8f9
[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] 79978d782ed615c2821ed467a0eb28786bd51ab6fbc69e01c766429c5f936567
[INFO] running `Command { std: "docker" "start" "-a" "79978d782ed615c2821ed467a0eb28786bd51ab6fbc69e01c766429c5f936567", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking x86_emu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variants `Ecx`, `Esi`, and `Edi` are never constructed
[INFO] [stdout]   --> src/emulator/mod.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | enum RegIdx {
[INFO] [stdout]    |      ------ variants in this enum
[INFO] [stdout] 40 |     Eax = 0,
[INFO] [stdout] 41 |     Ecx = 1,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     Esi = 6,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 47 |     Edi = 7,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `cl`, `dl`, `ch`, `dh`, and `bh` are never used
[INFO] [stdout]   --> src/emulator/mod.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 50 | impl RegIdx {
[INFO] [stdout]    | ----------- associated functions in this implementation
[INFO] [stdout] 51 |     pub fn al() -> usize { Self::Eax as usize }
[INFO] [stdout] 52 |     pub fn cl() -> usize { Self::Ecx as usize }
[INFO] [stdout]    |            ^^
[INFO] [stdout] 53 |     pub fn bl() -> usize { Self::Ebx as usize }
[INFO] [stdout] 54 |     pub fn dl() -> usize { Self::Edx as usize }
[INFO] [stdout]    |            ^^
[INFO] [stdout] 55 |     pub fn ah() -> usize { Self::al() + 4 }
[INFO] [stdout] 56 |     pub fn ch() -> usize { Self::cl() + 4 }
[INFO] [stdout]    |            ^^
[INFO] [stdout] 57 |     pub fn dh() -> usize { Self::dl() + 4 }
[INFO] [stdout]    |            ^^
[INFO] [stdout] 58 |     pub fn bh() -> usize { Self::bl() + 4 }
[INFO] [stdout]    |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Ecx`, `Esi`, and `Edi` are never constructed
[INFO] [stdout]   --> src/emulator/mod.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | enum RegIdx {
[INFO] [stdout]    |      ------ variants in this enum
[INFO] [stdout] 40 |     Eax = 0,
[INFO] [stdout] 41 |     Ecx = 1,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     Esi = 6,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 47 |     Edi = 7,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `cl`, `dl`, `ch`, `dh`, and `bh` are never used
[INFO] [stdout]   --> src/emulator/mod.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 50 | impl RegIdx {
[INFO] [stdout]    | ----------- associated functions in this implementation
[INFO] [stdout] 51 |     pub fn al() -> usize { Self::Eax as usize }
[INFO] [stdout] 52 |     pub fn cl() -> usize { Self::Ecx as usize }
[INFO] [stdout]    |            ^^
[INFO] [stdout] 53 |     pub fn bl() -> usize { Self::Ebx as usize }
[INFO] [stdout] 54 |     pub fn dl() -> usize { Self::Edx as usize }
[INFO] [stdout]    |            ^^
[INFO] [stdout] 55 |     pub fn ah() -> usize { Self::al() + 4 }
[INFO] [stdout] 56 |     pub fn ch() -> usize { Self::cl() + 4 }
[INFO] [stdout]    |            ^^
[INFO] [stdout] 57 |     pub fn dh() -> usize { Self::dl() + 4 }
[INFO] [stdout]    |            ^^
[INFO] [stdout] 58 |     pub fn bh() -> usize { Self::bl() + 4 }
[INFO] [stdout]    |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `Command { std: "docker" "inspect" "79978d782ed615c2821ed467a0eb28786bd51ab6fbc69e01c766429c5f936567", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79978d782ed615c2821ed467a0eb28786bd51ab6fbc69e01c766429c5f936567", kill_on_drop: false }`
[INFO] [stdout] 79978d782ed615c2821ed467a0eb28786bd51ab6fbc69e01c766429c5f936567