[INFO] fetching crate awint_ext 0.1.0-pre.0...
[INFO] checking awint_ext-0.1.0-pre.0 against master#0a8629bff642c3c3b84bb644c0099194f063b627 for pr-86231
[INFO] extracting crate awint_ext 0.1.0-pre.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate awint_ext 0.1.0-pre.0 on toolchain 0a8629bff642c3c3b84bb644c0099194f063b627
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate awint_ext 0.1.0-pre.0
[INFO] finished tweaking crates.io crate awint_ext 0.1.0-pre.0
[INFO] tweaked toml for crates.io crate awint_ext 0.1.0-pre.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+0a8629bff642c3c3b84bb644c0099194f063b627" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 23823505f4bd7f9f51d39e8f32b736c72cd5dd515f597c63f6fa343e36ed8075
[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" "23823505f4bd7f9f51d39e8f32b736c72cd5dd515f597c63f6fa343e36ed8075", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23823505f4bd7f9f51d39e8f32b736c72cd5dd515f597c63f6fa343e36ed8075", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23823505f4bd7f9f51d39e8f32b736c72cd5dd515f597c63f6fa343e36ed8075", kill_on_drop: false }`
[INFO] [stdout] 23823505f4bd7f9f51d39e8f32b736c72cd5dd515f597c63f6fa343e36ed8075
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+0a8629bff642c3c3b84bb644c0099194f063b627" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1530fd8a7c4ea33637d82ffbddde2f1e07d6bf72fdbdca4ff8fa7f767a5f1f4d
[INFO] running `Command { std: "docker" "start" "-a" "1530fd8a7c4ea33637d82ffbddde2f1e07d6bf72fdbdca4ff8fa7f767a5f1f4d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking awint_internals v0.1.0-pre.0
[INFO] [stderr]     Checking awint_core v0.1.0-pre.0
[INFO] [stdout] error[E0015]: calls in constant functions are limited to constant functions, tuple structs and tuple variants
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/awint_core-0.1.0-pre.0/src/logic/permute.rs:31:21
[INFO] [stdout]    |
[INFO] [stdout] 31 |                     x.add(i).write(tmp);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0015]: calls in constant functions are limited to constant functions, tuple structs and tuple variants
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/awint_core-0.1.0-pre.0/src/logic/permute.rs:36:29
[INFO] [stdout]    |
[INFO] [stdout] 36 | ...                   x.write(tmp);
[INFO] [stdout]    |                       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0015]: calls in constant functions are limited to constant functions, tuple structs and tuple variants
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/awint_core-0.1.0-pre.0/src/logic/permute.rs:51:25
[INFO] [stdout]    |
[INFO] [stdout] 51 |                         x.add(i).write(tmp);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0015]: calls in constant functions are limited to constant functions, tuple structs and tuple variants
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/awint_core-0.1.0-pre.0/src/logic/permute.rs:56:33
[INFO] [stdout]    |
[INFO] [stdout] 56 | ...                   x.add(start).write(tmp);
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^
[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 E0015`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `awint_core`
[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] error: build failed
[INFO] running `Command { std: "docker" "inspect" "1530fd8a7c4ea33637d82ffbddde2f1e07d6bf72fdbdca4ff8fa7f767a5f1f4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1530fd8a7c4ea33637d82ffbddde2f1e07d6bf72fdbdca4ff8fa7f767a5f1f4d", kill_on_drop: false }`
[INFO] [stdout] 1530fd8a7c4ea33637d82ffbddde2f1e07d6bf72fdbdca4ff8fa7f767a5f1f4d