[INFO] updating cached repository https://github.com/roblabla/test-xargo-217
[INFO] running `"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"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b1c25b7ea7b829c66e11cbeba412b1d206d5e613
[INFO] checking roblabla/test-xargo-217 against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froblabla%2Ftest-xargo-217" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/roblabla/test-xargo-217 on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/roblabla/test-xargo-217
[INFO] finished tweaking git repo https://github.com/roblabla/test-xargo-217
[INFO] tweaked toml for git repo https://github.com/roblabla/test-xargo-217 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/roblabla/test-xargo-217 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "/opt/rustwide/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] feade2f54ad90ae866aa44f31a102379488f9a7e13cb71861cfe92a699b95338
[INFO] running `"docker" "start" "-a" "feade2f54ad90ae866aa44f31a102379488f9a7e13cb71861cfe92a699b95338"`
[INFO] [stderr]     Checking hello_world v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `p`
[INFO] [stderr]   --> src/main.rs:13:25
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub extern fn panic_fmt(p: &core::panic::PanicInfo<'_>) -> ! {
[INFO] [stderr]    |                         ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `layout`
[INFO] [stderr]   --> src/main.rs:23:28
[INFO] [stderr]    |
[INFO] [stderr] 23 |     unsafe fn alloc(&self, layout: alloc::alloc::Layout) -> *mut u8 {
[INFO] [stderr]    |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ptr`
[INFO] [stderr]   --> src/main.rs:26:30
[INFO] [stderr]    |
[INFO] [stderr] 26 |     unsafe fn dealloc(&self, ptr: *mut u8, layout: alloc::alloc::Layout) {
[INFO] [stderr]    |                              ^^^ help: if this is intentional, prefix it with an underscore: `_ptr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `layout`
[INFO] [stderr]   --> src/main.rs:26:44
[INFO] [stderr]    |
[INFO] [stderr] 26 |     unsafe fn dealloc(&self, ptr: *mut u8, layout: alloc::alloc::Layout) {
[INFO] [stderr]    |                                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stderr] 
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]  --> src/main.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![link_args="-nostdlib"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0152]: found duplicate lang item `eh_personality`
[INFO] [stderr]   --> src/main.rs:10:41
[INFO] [stderr]    |
[INFO] [stderr] 10 | #[lang = "eh_personality"] #[no_mangle] pub extern fn eh_personality() {}
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: the lang item is first defined in crate `panic_unwind` (which `std` depends on)
[INFO] [stderr] 
[INFO] [stderr] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stderr]   --> src/main.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | / pub extern fn panic_fmt(p: &core::panic::PanicInfo<'_>) -> ! {
[INFO] [stderr] 14 | |     loop {}
[INFO] [stderr] 15 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: the lang item is first defined in crate `std` (which `test` depends on)
[INFO] [stderr] 
[INFO] [stderr] error[E0152]: found duplicate lang item `oom`
[INFO] [stderr]   --> src/main.rs:32:1
[INFO] [stderr]    |
[INFO] [stderr] 32 | / fn rust_oom(_: alloc::alloc::Layout) -> ! {
[INFO] [stderr] 33 | |     loop {}
[INFO] [stderr] 34 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: the lang item is first defined in crate `std` (which `test` depends on)
[INFO] [stderr] 
[INFO] [stderr] error[E0152]: found duplicate lang item `start`
[INFO] [stderr]   --> src/main.rs:37:1
[INFO] [stderr]    |
[INFO] [stderr] 37 | / fn start(rmain: fn(), _argc: isize, _argv: *const *const u8) -> isize {
[INFO] [stderr] 38 | |     rmain();
[INFO] [stderr] 39 | |     0
[INFO] [stderr] 40 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: the lang item is first defined in crate `std` (which `test` depends on)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0152`.
[INFO] [stderr] error: could not compile `hello_world`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "feade2f54ad90ae866aa44f31a102379488f9a7e13cb71861cfe92a699b95338"`
[INFO] running `"docker" "rm" "-f" "feade2f54ad90ae866aa44f31a102379488f9a7e13cb71861cfe92a699b95338"`
[INFO] [stdout] feade2f54ad90ae866aa44f31a102379488f9a7e13cb71861cfe92a699b95338
