[INFO] fetching crate efw 0.1.0...
[INFO] checking efw-0.1.0 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] extracting crate efw 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate efw 0.1.0 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate efw 0.1.0
[INFO] finished tweaking crates.io crate efw 0.1.0
[INFO] tweaked toml for crates.io crate efw 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded late-static v0.3.0
[INFO] [stderr]   Downloaded ucs2 v0.1.0
[INFO] [stderr]   Downloaded r-efi v2.2.0
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "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] 1b6c50d49f7b42bb7ccc7d2fde27acc87a428f72847b39ba42dadf30a29718fb
[INFO] running `"docker" "start" "-a" "1b6c50d49f7b42bb7ccc7d2fde27acc87a428f72847b39ba42dadf30a29718fb"`
[INFO] [stderr]     Checking late-static v0.3.0
[INFO] [stderr]     Checking ucs2 v0.1.0
[INFO] [stderr]     Checking r-efi v2.2.0
[INFO] [stderr]     Checking efw v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0152]: found duplicate lang item `oom`
[INFO] [stderr]   --> src/allocator.rs:34:1
[INFO] [stderr]    |
[INFO] [stderr] 34 | / fn alloc_error_handler(_layout: core::alloc::Layout) -> ! {
[INFO] [stderr] 35 | |     panic!("Allocation failed");
[INFO] [stderr] 36 | | }
[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 `panic_impl`
[INFO] [stderr]   --> src/lib.rs:41:1
[INFO] [stderr]    |
[INFO] [stderr] 41 | / fn panic_handler(panic_info: &core::panic::PanicInfo) -> ! {
[INFO] [stderr] 42 | |     let message = match panic_info.message() {
[INFO] [stderr] 43 | |         Some(s) => s.clone(),
[INFO] [stderr] 44 | |         None => format_args!("no message"),
[INFO] [stderr] ...  |
[INFO] [stderr] 56 | |     loop {}
[INFO] [stderr] 57 | | }
[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 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0152`.
[INFO] [stderr] error: could not compile `efw`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: the feature `alloc` has been stable since 1.36.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(alloc)]
[INFO] [stderr]   |            ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "1b6c50d49f7b42bb7ccc7d2fde27acc87a428f72847b39ba42dadf30a29718fb"`
[INFO] running `"docker" "rm" "-f" "1b6c50d49f7b42bb7ccc7d2fde27acc87a428f72847b39ba42dadf30a29718fb"`
[INFO] [stdout] 1b6c50d49f7b42bb7ccc7d2fde27acc87a428f72847b39ba42dadf30a29718fb