[INFO] updating cached repository https://github.com/bon-chi/rust_emu
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5995967e6db23f0a03c4b47d48e75e463d2fa681
[INFO] checking bon-chi/rust_emu against try#0ab79c4b48ad19260fa46623f452c1b403a360e8 for pr-74315
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbon-chi%2Frust_emu" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bon-chi/rust_emu on toolchain 0ab79c4b48ad19260fa46623f452c1b403a360e8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bon-chi/rust_emu
[INFO] finished tweaking git repo https://github.com/bon-chi/rust_emu
[INFO] tweaked toml for git repo https://github.com/bon-chi/rust_emu written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/bon-chi/rust_emu already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "fetch" "--locked" "--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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b991e61d46725cce0e814d7a01f2b66abbc14e6796e9bf87c76168ef9a7a5ca6
[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" "b991e61d46725cce0e814d7a01f2b66abbc14e6796e9bf87c76168ef9a7a5ca6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b991e61d46725cce0e814d7a01f2b66abbc14e6796e9bf87c76168ef9a7a5ca6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b991e61d46725cce0e814d7a01f2b66abbc14e6796e9bf87c76168ef9a7a5ca6", kill_on_drop: false }`
[INFO] [stdout] b991e61d46725cce0e814d7a01f2b66abbc14e6796e9bf87c76168ef9a7a5ca6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ac50eb938a7a1fdec421a3d4eb704faed7a89ae3c364fcf2594f96a1cd2a334
[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" "7ac50eb938a7a1fdec421a3d4eb704faed7a89ae3c364fcf2594f96a1cd2a334", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_emu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Disp`
[INFO] [stdout]   --> src/emulator/mod.rs:12:19
[INFO] [stdout]    |
[INFO] [stdout] 12 | use self::modrm::{Disp, Function as ModRMFunction, ModRM};
[INFO] [stdout]    |                   ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Disp`
[INFO] [stdout]   --> src/emulator/mod.rs:12:19
[INFO] [stdout]    |
[INFO] [stdout] 12 | use self::modrm::{Disp, Function as ModRMFunction, ModRM};
[INFO] [stdout]    |                   ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `Command { std: "docker" "inspect" "7ac50eb938a7a1fdec421a3d4eb704faed7a89ae3c364fcf2594f96a1cd2a334", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ac50eb938a7a1fdec421a3d4eb704faed7a89ae3c364fcf2594f96a1cd2a334", kill_on_drop: false }`
[INFO] [stdout] 7ac50eb938a7a1fdec421a3d4eb704faed7a89ae3c364fcf2594f96a1cd2a334