[INFO] cloning repository https://github.com/roblabla/test-xargo-217
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/roblabla/test-xargo-217" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froblabla%2Ftest-xargo-217", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froblabla%2Ftest-xargo-217'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b1c25b7ea7b829c66e11cbeba412b1d206d5e613
[INFO] checking roblabla/test-xargo-217 against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froblabla%2Ftest-xargo-217" "/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/roblabla/test-xargo-217 on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-6/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 `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f5d1a6f021651b95152a51c1fc1859a7baa09291c881ba93fe4ab39510f767b
[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" "4f5d1a6f021651b95152a51c1fc1859a7baa09291c881ba93fe4ab39510f767b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f5d1a6f021651b95152a51c1fc1859a7baa09291c881ba93fe4ab39510f767b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f5d1a6f021651b95152a51c1fc1859a7baa09291c881ba93fe4ab39510f767b", kill_on_drop: false }`
[INFO] [stdout] 4f5d1a6f021651b95152a51c1fc1859a7baa09291c881ba93fe4ab39510f767b
[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" "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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bae96ad1b34ba73c786d2a821474b2f7577a9aa9748363e9087eeebd74a42865
[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" "bae96ad1b34ba73c786d2a821474b2f7577a9aa9748363e9087eeebd74a42865", kill_on_drop: false }`
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking hello_world v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]   --> src/main.rs:13:25
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub extern fn panic_fmt(p: &core::panic::PanicInfo<'_>) -> ! {
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `layout`
[INFO] [stdout]   --> src/main.rs:23:28
[INFO] [stdout]    |
[INFO] [stdout] 23 |     unsafe fn alloc(&self, layout: alloc::alloc::Layout) -> *mut u8 {
[INFO] [stdout]    |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ptr`
[INFO] [stdout]   --> src/main.rs:26:30
[INFO] [stdout]    |
[INFO] [stdout] 26 |     unsafe fn dealloc(&self, ptr: *mut u8, layout: alloc::alloc::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/main.rs:26:44
[INFO] [stdout]    |
[INFO] [stdout] 26 |     unsafe fn dealloc(&self, ptr: *mut u8, layout: alloc::alloc::Layout) {
[INFO] [stdout]    |                                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_layout`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused attribute
[INFO] [stdout]  --> src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![link_args="-nostdlib"]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: found duplicate lang item `eh_personality`
[INFO] [stdout]   --> src/main.rs:10:41
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[lang = "eh_personality"] #[no_mangle] pub extern fn eh_personality() {}
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the lang item is first defined in crate `panic_unwind` (which `std` depends on)
[INFO] [stdout]    = note: first definition in `panic_unwind` loaded from /opt/rustwide/rustup-home/toolchains/f6e2f78768c57172b99c3e85892f867894dc7e30/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-855c562e2e292ca8.rlib
[INFO] [stdout]    = note: second definition in the local crate (`hello_world`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> src/main.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | / pub extern fn panic_fmt(p: &core::panic::PanicInfo<'_>) -> ! {
[INFO] [stdout] 14 | |     loop {}
[INFO] [stdout] 15 | | }
[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/f6e2f78768c57172b99c3e85892f867894dc7e30/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-afd4b9aba051f3ad.rlib
[INFO] [stdout]    = note: second definition in the local crate (`hello_world`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: found duplicate lang item `oom`
[INFO] [stdout]   --> src/main.rs:32:1
[INFO] [stdout]    |
[INFO] [stdout] 32 | / fn rust_oom(_: alloc::alloc::Layout) -> ! {
[INFO] [stdout] 33 | |     loop {}
[INFO] [stdout] 34 | | }
[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/f6e2f78768c57172b99c3e85892f867894dc7e30/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-afd4b9aba051f3ad.rlib
[INFO] [stdout]    = note: second definition in the local crate (`hello_world`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: found duplicate lang item `start`
[INFO] [stdout]   --> src/main.rs:37:1
[INFO] [stdout]    |
[INFO] [stdout] 37 | / fn start(rmain: fn(), _argc: isize, _argv: *const *const u8) -> isize {
[INFO] [stdout] 38 | |     rmain();
[INFO] [stdout] 39 | |     0
[INFO] [stdout] 40 | | }
[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/f6e2f78768c57172b99c3e85892f867894dc7e30/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-afd4b9aba051f3ad.rlib
[INFO] [stdout]    = note: second definition in the local crate (`hello_world`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hello_world`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "bae96ad1b34ba73c786d2a821474b2f7577a9aa9748363e9087eeebd74a42865", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bae96ad1b34ba73c786d2a821474b2f7577a9aa9748363e9087eeebd74a42865", kill_on_drop: false }`
[INFO] [stdout] bae96ad1b34ba73c786d2a821474b2f7577a9aa9748363e9087eeebd74a42865