[INFO] cloning repository https://github.com/alchemy-os/alchemy
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alchemy-os/alchemy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falchemy-os%2Falchemy"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falchemy-os%2Falchemy'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3e4b40123b0edb7635221bff92122f9d89fa0f12
[INFO] checking alchemy-os/alchemy against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falchemy-os%2Falchemy" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alchemy-os/alchemy on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/alchemy-os/alchemy
[INFO] finished tweaking git repo https://github.com/alchemy-os/alchemy
[INFO] tweaked toml for git repo https://github.com/alchemy-os/alchemy written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/alchemy-os/alchemy already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: path `/workspace/builds/worker-7/source/src/alchemy.rs` was erroneously implicitly accepted for library `alchemy`,
[INFO] [stderr] please rename the file to `src/lib.rs` or set lib.path in Cargo.toml
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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] f7892bb3d6fdcb7bcb6d663fe0d9b6c9f3444318167b10296f629b5f61d3b25b
[INFO] running `"docker" "start" "-a" "f7892bb3d6fdcb7bcb6d663fe0d9b6c9f3444318167b10296f629b5f61d3b25b"`
[INFO] [stderr] warning: path `/opt/rustwide/workdir/src/alchemy.rs` was erroneously implicitly accepted for library `alchemy`,
[INFO] [stderr] please rename the file to `src/lib.rs` or set lib.path in Cargo.toml
[INFO] [stderr]    Compiling alchemy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking spin v0.4.3
[INFO] [stderr]     Checking rlibc v1.0.0
[INFO] [stderr] error[E0522]: definition of an unknown language item: `panic_fmt`
[INFO] [stderr]   --> src/alchemy.rs:34:14
[INFO] [stderr]    |
[INFO] [stderr] 34 | #[no_mangle] #[lang = "panic_fmt"] pub extern fn panic_fmt() -> ! { loop {} }
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `panic_fmt`
[INFO] [stderr] 
[INFO] [stderr] error: `#[panic_handler]` function required, but not found
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0522`.
[INFO] [stderr] error: could not compile `alchemy`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0152]: duplicate lang item found: `eh_personality`.
[INFO] [stderr]   --> src/alchemy.rs:33:28
[INFO] [stderr]    |
[INFO] [stderr] 33 | #[lang = "eh_personality"] pub extern fn eh_personality() {}
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: first defined in crate `panic_unwind` (which `std` depends on).
[INFO] [stderr] 
[INFO] [stderr] error[E0522]: definition of an unknown language item: `panic_fmt`
[INFO] [stderr]   --> src/alchemy.rs:34:14
[INFO] [stderr]    |
[INFO] [stderr] 34 | #[no_mangle] #[lang = "panic_fmt"] pub extern fn panic_fmt() -> ! { loop {} }
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `panic_fmt`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0152, E0522.
[INFO] [stderr] For more information about an error, try `rustc --explain E0152`.
[INFO] [stderr] error: could not compile `alchemy`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "f7892bb3d6fdcb7bcb6d663fe0d9b6c9f3444318167b10296f629b5f61d3b25b"`
[INFO] running `"docker" "rm" "-f" "f7892bb3d6fdcb7bcb6d663fe0d9b6c9f3444318167b10296f629b5f61d3b25b"`
[INFO] [stdout] f7892bb3d6fdcb7bcb6d663fe0d9b6c9f3444318167b10296f629b5f61d3b25b