[INFO] cloning repository https://github.com/Ferdi265/lambda.rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Ferdi265/lambda.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFerdi265%2Flambda.rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFerdi265%2Flambda.rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 051c2a4df876889df93a2743656305ea7b229dd6 [INFO] testing Ferdi265/lambda.rs against beta-2021-01-01 for beta-1.50-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFerdi265%2Flambda.rs" "/workspace/builds/worker-0/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Ferdi265/lambda.rs on toolchain beta-2021-01-01 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Ferdi265/lambda.rs [INFO] finished tweaking git repo https://github.com/Ferdi265/lambda.rs [INFO] tweaked toml for git repo https://github.com/Ferdi265/lambda.rs written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate git repo https://github.com/Ferdi265/lambda.rs already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 74d7ca9bba7de122fbd4c367ab92ca24d5508544d2cbea25900ee985d24710f5 [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" "74d7ca9bba7de122fbd4c367ab92ca24d5508544d2cbea25900ee985d24710f5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "74d7ca9bba7de122fbd4c367ab92ca24d5508544d2cbea25900ee985d24710f5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "74d7ca9bba7de122fbd4c367ab92ca24d5508544d2cbea25900ee985d24710f5", kill_on_drop: false }` [INFO] [stdout] 74d7ca9bba7de122fbd4c367ab92ca24d5508544d2cbea25900ee985d24710f5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8356efbeb8707a8dd5fa46bcd4c7631586057440628f25b0abca7f76e982913f [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" "8356efbeb8707a8dd5fa46bcd4c7631586057440628f25b0abca7f76e982913f", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.31 [INFO] [stderr] Compiling libc v0.2.71 [INFO] [stderr] Compiling ucd-trie v0.1.3 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.2 [INFO] [stderr] Compiling proc-macro-error v1.0.2 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling pest v2.1.3 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling pest_meta v2.1.3 [INFO] [stderr] Compiling clap v2.33.1 [INFO] [stderr] Compiling syn-mid v0.5.0 [INFO] [stderr] Compiling pest_generator v2.1.3 [INFO] [stderr] Compiling pest_derive v2.1.0 [INFO] [stderr] Compiling structopt-derive v0.4.8 [INFO] [stderr] Compiling structopt v0.3.15 [INFO] [stderr] Compiling lambda v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(associated_type_defaults)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:2:1 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(specialization)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:3:1 [INFO] [stdout] | [INFO] [stdout] 3 | #![feature(never_type)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `specialization` 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(specialization)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(incomplete_features)]` on by default [INFO] [stdout] = note: see issue #31844 for more information [INFO] [stdout] = help: consider using `min_specialization` instead, which is more stable and complete [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 3 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: could not compile `lambda` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `Command { std: "docker" "inspect" "8356efbeb8707a8dd5fa46bcd4c7631586057440628f25b0abca7f76e982913f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8356efbeb8707a8dd5fa46bcd4c7631586057440628f25b0abca7f76e982913f", kill_on_drop: false }` [INFO] [stdout] 8356efbeb8707a8dd5fa46bcd4c7631586057440628f25b0abca7f76e982913f