[INFO] cloning repository https://github.com/murar8/euler [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/murar8/euler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmurar8%2Feuler", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmurar8%2Feuler'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6952340874768264a9674d55745e96ad97c26335 [INFO] checking murar8/euler against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmurar8%2Feuler" "/workspace/builds/worker-10/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/murar8/euler 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/murar8/euler [INFO] finished tweaking git repo https://github.com/murar8/euler [INFO] tweaked toml for git repo https://github.com/murar8/euler written to /workspace/builds/worker-10/source/Cargo.toml [INFO] crate git repo https://github.com/murar8/euler 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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] d73c85fa168cba7fb5f87f1c37d4d6eed20f0f36d173eba8bf2a01dff7edb029 [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" "d73c85fa168cba7fb5f87f1c37d4d6eed20f0f36d173eba8bf2a01dff7edb029", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d73c85fa168cba7fb5f87f1c37d4d6eed20f0f36d173eba8bf2a01dff7edb029", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d73c85fa168cba7fb5f87f1c37d4d6eed20f0f36d173eba8bf2a01dff7edb029", kill_on_drop: false }` [INFO] [stdout] d73c85fa168cba7fb5f87f1c37d4d6eed20f0f36d173eba8bf2a01dff7edb029 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 307dbbfd5114f37678acca36d7cc01d96c2e6915dde79e8abf724afaff2a24bf [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" "307dbbfd5114f37678acca36d7cc01d96c2e6915dde79e8abf724afaff2a24bf", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Checking hashbrown v0.9.1 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling indexmap v1.6.0 [INFO] [stderr] Compiling num-bigint v0.3.1 [INFO] [stderr] Compiling priority-queue v1.0.2 [INFO] [stderr] Checking euler v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0658]: `impl Trait` in type aliases is unstable [INFO] [stdout] --> src/digits.rs:10:14 [INFO] [stdout] | [INFO] [stdout] 10 | type I = impl Iterator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #63063 for more information [INFO] [stdout] = help: add `#![feature(min_type_alias_impl_trait)]` to the crate attributes to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `type_alias_impl_trait` is incomplete and may not be safe to use and/or cause compiler crashes [INFO] [stdout] --> src/lib.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(type_alias_impl_trait)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(incomplete_features)]` on by default [INFO] [stdout] = note: see issue #63063 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: `impl Trait` in type aliases is unstable [INFO] [stdout] --> src/digits.rs:10:14 [INFO] [stdout] | [INFO] [stdout] 10 | type I = impl Iterator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #63063 for more information [INFO] [stdout] = help: add `#![feature(min_type_alias_impl_trait)]` to the crate attributes to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `type_alias_impl_trait` is incomplete and may not be safe to use and/or cause compiler crashes [INFO] [stdout] --> src/lib.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(type_alias_impl_trait)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(incomplete_features)]` on by default [INFO] [stdout] = note: see issue #63063 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0658`. [INFO] [stdout] [INFO] [stderr] error: could not compile `euler` due to 2 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: aborting due to previous error; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0658`. [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "307dbbfd5114f37678acca36d7cc01d96c2e6915dde79e8abf724afaff2a24bf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "307dbbfd5114f37678acca36d7cc01d96c2e6915dde79e8abf724afaff2a24bf", kill_on_drop: false }` [INFO] [stdout] 307dbbfd5114f37678acca36d7cc01d96c2e6915dde79e8abf724afaff2a24bf