[INFO] cloning repository https://github.com/Andrew-LC/myos
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Andrew-LC/myos" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAndrew-LC%2Fmyos", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAndrew-LC%2Fmyos'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 92b9fd32cc64e00aa484a544719019bd20de1649
[INFO] checking Andrew-LC/myos against master#04ff05c9c0cfbca33115c5f1b8bb20a66a54b799 for pr-147834
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAndrew-LC%2Fmyos" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-2-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/Andrew-LC/myos
[INFO] finished tweaking git repo https://github.com/Andrew-LC/myos
[INFO] tweaked toml for git repo https://github.com/Andrew-LC/myos written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Andrew-LC/myos on toolchain 04ff05c9c0cfbca33115c5f1b8bb20a66a54b799
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Andrew-LC/myos 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" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c4221dc5432dd719b09fae520786ec11a5b7ecfdd59c5baf1a6a38891b2fe6e2
[INFO] running `Command { std: "docker" "start" "-a" "c4221dc5432dd719b09fae520786ec11a5b7ecfdd59c5baf1a6a38891b2fe6e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c4221dc5432dd719b09fae520786ec11a5b7ecfdd59c5baf1a6a38891b2fe6e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4221dc5432dd719b09fae520786ec11a5b7ecfdd59c5baf1a6a38891b2fe6e2", kill_on_drop: false }`
[INFO] [stdout] c4221dc5432dd719b09fae520786ec11a5b7ecfdd59c5baf1a6a38891b2fe6e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+04ff05c9c0cfbca33115c5f1b8bb20a66a54b799" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1c61e908b68b53881e3d32f540a265edc20e7d14585d49dcd21f2d86cdf52b7
[INFO] running `Command { std: "docker" "start" "-a" "f1c61e908b68b53881e3d32f540a265edc20e7d14585d49dcd21f2d86cdf52b7", kill_on_drop: false }`
[INFO] [stderr]     Checking myos v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `alloc::vec::Vec`
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use alloc::vec::Vec;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unwinding panics are not supported without std
[INFO] [stdout]   |
[INFO] [stdout]   = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding
[INFO] [stdout]   = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layout`
[INFO] [stdout]  --> src/allocator.rs:8:28
[INFO] [stdout]   |
[INFO] [stdout] 8 |     unsafe fn alloc(&self, layout: Layout) -> *mut u8 {
[INFO] [stdout]   |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ptr`
[INFO] [stdout]   --> src/allocator.rs:11:30
[INFO] [stdout]    |
[INFO] [stdout] 11 |     unsafe fn dealloc(&self, ptr: *mut u8, layout: Layout) {
[INFO] [stdout]    |                              ^^^ help: if this is intentional, prefix it with an underscore: `_ptr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layout`
[INFO] [stdout]   --> src/allocator.rs:11:44
[INFO] [stdout]    |
[INFO] [stdout] 11 |     unsafe fn dealloc(&self, ptr: *mut u8, layout: Layout) {
[INFO] [stdout]    |                                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `alloc::vec::Vec`
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use alloc::vec::Vec;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> src/main.rs:91:1
[INFO] [stdout]    |
[INFO] [stdout] 91 | / fn panic(_info: &PanicInfo) -> ! {
[INFO] [stdout] 92 | |     println!("We panicked!");
[INFO] [stdout] 93 | |     loop {}
[INFO] [stdout] 94 | | }
[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/04ff05c9c0cfbca33115c5f1b8bb20a66a54b799/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-d73d50f7d7b085f5.rlib
[INFO] [stdout]    = note: second definition in the local crate (`myos`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `myos` (bin "myos" test) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `myos` (bin "myos") due to 1 previous error; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "f1c61e908b68b53881e3d32f540a265edc20e7d14585d49dcd21f2d86cdf52b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1c61e908b68b53881e3d32f540a265edc20e7d14585d49dcd21f2d86cdf52b7", kill_on_drop: false }`
[INFO] [stdout] f1c61e908b68b53881e3d32f540a265edc20e7d14585d49dcd21f2d86cdf52b7
