[INFO] cloning repository https://github.com/soruh/barebones-x86-linux
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/soruh/barebones-x86-linux" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsoruh%2Fbarebones-x86-linux", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsoruh%2Fbarebones-x86-linux'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 659f705d5a84fec16851f165004771d0f5cebec5
[INFO] checking soruh/barebones-x86-linux against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsoruh%2Fbarebones-x86-linux" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/soruh/barebones-x86-linux on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/soruh/barebones-x86-linux
[INFO] finished tweaking git repo https://github.com/soruh/barebones-x86-linux
[INFO] tweaked toml for git repo https://github.com/soruh/barebones-x86-linux written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/soruh/barebones-x86-linux already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d78370f7dcbba323dadefa4f6f1781fc033c956860f923ba7329ca9068303a96
[INFO] running `Command { std: "docker" "start" "-a" "d78370f7dcbba323dadefa4f6f1781fc033c956860f923ba7329ca9068303a96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d78370f7dcbba323dadefa4f6f1781fc033c956860f923ba7329ca9068303a96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d78370f7dcbba323dadefa4f6f1781fc033c956860f923ba7329ca9068303a96", kill_on_drop: false }`
[INFO] [stdout] d78370f7dcbba323dadefa4f6f1781fc033c956860f923ba7329ca9068303a96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 65cd70fe9cb54b19eabd70512bff6c40b2c150924333e0349bff22da6f3f877c
[INFO] running `Command { std: "docker" "start" "-a" "65cd70fe9cb54b19eabd70512bff6c40b2c150924333e0349bff22da6f3f877c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling compiler_builtins v0.1.39
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking smallstr v0.2.0
[INFO] [stderr]     Checking barebones-x86-linux v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]  --> src/lang_items.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn __panic_handler(info: &core::panic::PanicInfo) -> ! {
[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/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-1a95cddb5b8aaf6b.rlib
[INFO] [stdout]   = note: second definition in the local crate (`barebones_x86_linux`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: found duplicate lang item `oom`
[INFO] [stdout]   --> src/lang_items.rs:40:1
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn __alloc_error_handler(layout: core::alloc::Layout) -> ! {
[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/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-1a95cddb5b8aaf6b.rlib
[INFO] [stdout]    = note: second definition in the local crate (`barebones_x86_linux`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: found duplicate lang item `eh_personality`
[INFO] [stdout]   --> src/lang_items.rs:45:1
[INFO] [stdout]    |
[INFO] [stdout] 45 | unsafe 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/5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e4ae8465c73bb991.rlib
[INFO] [stdout]    = note: second definition in the local crate (`barebones_x86_linux`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 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 `barebones-x86-linux` due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: the feature `maybe_uninit_ref` has been stable since 1.55.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(maybe_uninit_ref)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "65cd70fe9cb54b19eabd70512bff6c40b2c150924333e0349bff22da6f3f877c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65cd70fe9cb54b19eabd70512bff6c40b2c150924333e0349bff22da6f3f877c", kill_on_drop: false }`
[INFO] [stdout] 65cd70fe9cb54b19eabd70512bff6c40b2c150924333e0349bff22da6f3f877c