[INFO] cloning repository https://github.com/eddychu/x86_emulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/eddychu/x86_emulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feddychu%2Fx86_emulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feddychu%2Fx86_emulator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] de8ee08d39bc2143a6b583196ba657fb297474a8
[INFO] checking eddychu/x86_emulator against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feddychu%2Fx86_emulator" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/eddychu/x86_emulator on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/eddychu/x86_emulator
[INFO] finished tweaking git repo https://github.com/eddychu/x86_emulator
[INFO] tweaked toml for git repo https://github.com/eddychu/x86_emulator written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/eddychu/x86_emulator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded capstone v0.9.0
[INFO] [stderr]   Downloaded capstone-sys v0.13.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] de8adf4a9952f2c44fdc6d7ccac65575665e82030625c69ed02b61677f9c5aef
[INFO] running `Command { std: "docker" "start" "-a" "de8adf4a9952f2c44fdc6d7ccac65575665e82030625c69ed02b61677f9c5aef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de8adf4a9952f2c44fdc6d7ccac65575665e82030625c69ed02b61677f9c5aef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de8adf4a9952f2c44fdc6d7ccac65575665e82030625c69ed02b61677f9c5aef", kill_on_drop: false }`
[INFO] [stdout] de8adf4a9952f2c44fdc6d7ccac65575665e82030625c69ed02b61677f9c5aef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 53acad3d638da0c9701e1a0d33828e1f23058c1c29538ea82b77d1a3cd8ae43e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "53acad3d638da0c9701e1a0d33828e1f23058c1c29538ea82b77d1a3cd8ae43e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling capstone-sys v0.13.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking object v0.25.3
[INFO] [stderr]     Checking capstone v0.9.0
[INFO] [stderr]     Checking x86_emulator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]  --> src/main.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn read_text_section(file: &str) -> Vec<u8> {
[INFO] [stdout]   |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]  --> src/main.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn read_text_section(file: &str) -> Vec<u8> {
[INFO] [stdout]   |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let mut cs = Capstone::new()
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let mut cs = Capstone::new()
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 59.45s
[INFO] running `Command { std: "docker" "inspect" "53acad3d638da0c9701e1a0d33828e1f23058c1c29538ea82b77d1a3cd8ae43e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53acad3d638da0c9701e1a0d33828e1f23058c1c29538ea82b77d1a3cd8ae43e", kill_on_drop: false }`
[INFO] [stdout] 53acad3d638da0c9701e1a0d33828e1f23058c1c29538ea82b77d1a3cd8ae43e