[INFO] fetching crate fake-avx512 0.0.0...
[INFO] checking fake-avx512-0.0.0 against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] extracting crate fake-avx512 0.0.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate fake-avx512 0.0.0 on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fake-avx512 0.0.0
[INFO] finished tweaking crates.io crate fake-avx512 0.0.0
[INFO] tweaked toml for crates.io crate fake-avx512 0.0.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--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-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bb53af6892fb1bc0f1c6ab2bf98c2b47af31feee67cb651af13b13b3105ca018
[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" "bb53af6892fb1bc0f1c6ab2bf98c2b47af31feee67cb651af13b13b3105ca018", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb53af6892fb1bc0f1c6ab2bf98c2b47af31feee67cb651af13b13b3105ca018", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb53af6892fb1bc0f1c6ab2bf98c2b47af31feee67cb651af13b13b3105ca018", kill_on_drop: false }`
[INFO] [stdout] bb53af6892fb1bc0f1c6ab2bf98c2b47af31feee67cb651af13b13b3105ca018
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a61ba10cee74ea3bd2641b2b803a5080905c2ad580119f0665ed47a9a3e7f2e0
[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" "a61ba10cee74ea3bd2641b2b803a5080905c2ad580119f0665ed47a9a3e7f2e0", kill_on_drop: false }`
[INFO] [stderr]     Checking fake-avx512 v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0659]: `_mm256_mask_abs_epi64` is ambiguous (glob import vs glob import in the same module)
[INFO] [stdout]   --> tests/abs.rs:13:24
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let dst = unsafe { _mm256_mask_abs_epi64(src, k, a) };
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^ ambiguous name
[INFO] [stdout]    |
[INFO] [stdout] note: `_mm256_mask_abs_epi64` could refer to the function imported here
[INFO] [stdout]   --> tests/abs.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use fake_avx512::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    = help: consider adding an explicit import of `_mm256_mask_abs_epi64` to disambiguate
[INFO] [stdout] note: `_mm256_mask_abs_epi64` could also refer to the function imported here
[INFO] [stdout]   --> tests/abs.rs:2:5
[INFO] [stdout]    |
[INFO] [stdout] 2  | use std::arch::x86_64::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = help: consider adding an explicit import of `_mm256_mask_abs_epi64` to disambiguate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0659`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fake-avx512`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "a61ba10cee74ea3bd2641b2b803a5080905c2ad580119f0665ed47a9a3e7f2e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a61ba10cee74ea3bd2641b2b803a5080905c2ad580119f0665ed47a9a3e7f2e0", kill_on_drop: false }`
[INFO] [stdout] a61ba10cee74ea3bd2641b2b803a5080905c2ad580119f0665ed47a9a3e7f2e0