[INFO] cloning repository https://github.com/dubbelosix/rubicv_test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dubbelosix/rubicv_test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdubbelosix%2Frubicv_test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdubbelosix%2Frubicv_test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a8b0907f27ee942752ba6e111516128f31600374
[INFO] checking dubbelosix/rubicv_test against try#a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399 for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdubbelosix%2Frubicv_test" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-5-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/dubbelosix/rubicv_test
[INFO] finished tweaking git repo https://github.com/dubbelosix/rubicv_test
[INFO] tweaked toml for git repo https://github.com/dubbelosix/rubicv_test written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dubbelosix/rubicv_test on toolchain a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dubbelosix/rubicv_test 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" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7aa86a27c4edf62dc97d22f04f191d1427c5edfc9d95ffdbde2b251fd26789bd
[INFO] running `Command { std: "docker" "start" "-a" "7aa86a27c4edf62dc97d22f04f191d1427c5edfc9d95ffdbde2b251fd26789bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7aa86a27c4edf62dc97d22f04f191d1427c5edfc9d95ffdbde2b251fd26789bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7aa86a27c4edf62dc97d22f04f191d1427c5edfc9d95ffdbde2b251fd26789bd", kill_on_drop: false }`
[INFO] [stdout] 7aa86a27c4edf62dc97d22f04f191d1427c5edfc9d95ffdbde2b251fd26789bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0fd6d4787f6169fa0a5a2d73e355cafc3ddb25e5f60b2177a88882219c8f0b2
[INFO] running `Command { std: "docker" "start" "-a" "b0fd6d4787f6169fa0a5a2d73e355cafc3ddb25e5f60b2177a88882219c8f0b2", kill_on_drop: false }`
[INFO] [stderr]     Checking rubicv_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: formatting may not be suitable for sub-register argument
[INFO] [stdout]   --> src/main.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 |         "mv a1, {0}",
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 11 |         "ecall",
[INFO] [stdout] 12 |         in(reg) 1,
[INFO] [stdout]    |                 - for this argument
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `{0:e}` to have the register formatted as `eax` (for 32-bit values)
[INFO] [stdout]    = help: or use `{0:r}` to keep the default formatting of `rax` (for 64-bit values)
[INFO] [stdout]    = note: `#[warn(asm_sub_register)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: formatting may not be suitable for sub-register argument
[INFO] [stdout]   --> src/main.rs:23:30
[INFO] [stdout]    |
[INFO] [stdout] 23 |         core::arch::asm!("mv {}, a0", out(reg) arg_count);
[INFO] [stdout]    |                              ^^                --------- for this argument
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `{0:e}` to have the register formatted as `eax` (for 32-bit values)
[INFO] [stdout]    = help: or use `{0:r}` to keep the default formatting of `rax` (for 64-bit values)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: formatting may not be suitable for sub-register argument
[INFO] [stdout]   --> src/main.rs:82:17
[INFO] [stdout]    |
[INFO] [stdout] 82 |         "mv a1, {0}",
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 83 |         "ecall",
[INFO] [stdout] 84 |         in(reg) 0,
[INFO] [stdout]    |                 - for this argument
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `{0:e}` to have the register formatted as `eax` (for 32-bit values)
[INFO] [stdout]    = help: or use `{0:r}` to keep the default formatting of `rax` (for 64-bit values)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> src/main.rs:7:1
[INFO] [stdout]    |
[INFO] [stdout] 7  | / fn panic(_info: &PanicInfo) -> ! {
[INFO] [stdout] 8  | |     unsafe {
[INFO] [stdout] 9  | |         core::arch::asm!(
[INFO] [stdout] 10 | |         "mv a1, {0}",
[INFO] [stdout] ...  |
[INFO] [stdout] 16 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the lang item is first defined in crate `std` (which `test` depends on)
[INFO] [stdout]    = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-54e42b35ab65fe3c.rlib
[INFO] [stdout]    = note: second definition in the local crate (`rubicv_test`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rubicv_test` (bin "rubicv_test" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "b0fd6d4787f6169fa0a5a2d73e355cafc3ddb25e5f60b2177a88882219c8f0b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0fd6d4787f6169fa0a5a2d73e355cafc3ddb25e5f60b2177a88882219c8f0b2", kill_on_drop: false }`
[INFO] [stdout] b0fd6d4787f6169fa0a5a2d73e355cafc3ddb25e5f60b2177a88882219c8f0b2