[INFO] fetching crate switcheroo 0.2.0... [INFO] testing switcheroo-0.2.0 against beta-2021-01-01 for beta-1.50-1 [INFO] extracting crate switcheroo 0.2.0 into /workspace/builds/worker-10/source [INFO] validating manifest of crates.io crate switcheroo 0.2.0 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 crates.io crate switcheroo 0.2.0 [INFO] finished tweaking crates.io crate switcheroo 0.2.0 [INFO] tweaked toml for crates.io crate switcheroo 0.2.0 written to /workspace/builds/worker-10/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "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-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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] be5b020a2991fd1b018e4fc7a720eb0b63465888000170c2a8659bb62ff4068d [INFO] running `Command { std: "docker" "start" "-a" "be5b020a2991fd1b018e4fc7a720eb0b63465888000170c2a8659bb62ff4068d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "be5b020a2991fd1b018e4fc7a720eb0b63465888000170c2a8659bb62ff4068d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "be5b020a2991fd1b018e4fc7a720eb0b63465888000170c2a8659bb62ff4068d", kill_on_drop: false }` [INFO] [stdout] be5b020a2991fd1b018e4fc7a720eb0b63465888000170c2a8659bb62ff4068d [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=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] 55d97c455b73c38b11c6fa72744a2abbbf8e2d67f4e14d0407b3635329d2ba4f [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" "55d97c455b73c38b11c6fa72744a2abbbf8e2d67f4e14d0407b3635329d2ba4f", kill_on_drop: false }` [INFO] [stderr] Compiling switcheroo 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(asm, naked_functions)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: asm in naked functions must use `noreturn` option [INFO] [stdout] --> src/arch/unix_x64.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | asm!(".cfi_def_cfa rbp, 16", ".cfi_offset rbp, -16", "nop", "nop",) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unsupported_naked_functions)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #32408 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: asm in naked functions must use `noreturn` option [INFO] [stdout] --> src/arch/unix_x64.rs:31:9 [INFO] [stdout] | [INFO] [stdout] 31 | / asm!( [INFO] [stdout] 32 | | ".cfi_def_cfa rbp, 16", [INFO] [stdout] 33 | | ".cfi_offset rbp, -16", [INFO] [stdout] 34 | | "nop", [INFO] [stdout] 35 | | "call [rsp + 16]" [INFO] [stdout] 36 | | ) [INFO] [stdout] | |_________^ [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #32408 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 2 warnings 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 `switcheroo` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `Command { std: "docker" "inspect" "55d97c455b73c38b11c6fa72744a2abbbf8e2d67f4e14d0407b3635329d2ba4f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "55d97c455b73c38b11c6fa72744a2abbbf8e2d67f4e14d0407b3635329d2ba4f", kill_on_drop: false }` [INFO] [stdout] 55d97c455b73c38b11c6fa72744a2abbbf8e2d67f4e14d0407b3635329d2ba4f