[INFO] cloning repository https://github.com/cfsamson/example-greenthreads [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cfsamson/example-greenthreads" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcfsamson%2Fexample-greenthreads", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcfsamson%2Fexample-greenthreads'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 78be8c53b08d1d2fe68b89e4bfcc89e8994c1508 [INFO] testing cfsamson/example-greenthreads 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%2Fcfsamson%2Fexample-greenthreads" "/workspace/builds/worker-1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/cfsamson/example-greenthreads 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/cfsamson/example-greenthreads [INFO] finished tweaking git repo https://github.com/cfsamson/example-greenthreads [INFO] tweaked toml for git repo https://github.com/cfsamson/example-greenthreads written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/cfsamson/example-greenthreads 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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8e33c0c06c3878ca8a9cba682d5e85a73c1cfd16ae80c233b0609e68a94982b8 [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" "8e33c0c06c3878ca8a9cba682d5e85a73c1cfd16ae80c233b0609e68a94982b8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8e33c0c06c3878ca8a9cba682d5e85a73c1cfd16ae80c233b0609e68a94982b8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8e33c0c06c3878ca8a9cba682d5e85a73c1cfd16ae80c233b0609e68a94982b8", kill_on_drop: false }` [INFO] [stdout] 8e33c0c06c3878ca8a9cba682d5e85a73c1cfd16ae80c233b0609e68a94982b8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3585aebeb17198e80b5652becaecff49bfa9db6d3bb00e223fa02f5b767c4729 [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" "3585aebeb17198e80b5652becaecff49bfa9db6d3bb00e223fa02f5b767c4729", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling green_threads v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/main.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(llvm_asm, naked_functions)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: Rust ABI is unsupported in naked functions [INFO] [stdout] --> src/main.rs:140:4 [INFO] [stdout] | [INFO] [stdout] 140 | fn skip() { } [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: naked functions must contain a single asm block [INFO] [stdout] --> src/main.rs:140:1 [INFO] [stdout] | [INFO] [stdout] 140 | fn skip() { } [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] warning: Rust ABI is unsupported in naked functions [INFO] [stdout] --> src/main.rs:158:11 [INFO] [stdout] | [INFO] [stdout] 158 | unsafe fn switch() { [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] warning: the LLVM-style inline assembly is unsupported in naked functions [INFO] [stdout] --> src/main.rs:159:5 [INFO] [stdout] | [INFO] [stdout] 159 | / llvm_asm!(" [INFO] [stdout] 160 | | mov %rsp, 0x00(%rdi) [INFO] [stdout] 161 | | mov %r15, 0x08(%rdi) [INFO] [stdout] 162 | | mov %r14, 0x10(%rdi) [INFO] [stdout] ... | [INFO] [stdout] 175 | | " [INFO] [stdout] 176 | | ); [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] = help: use the new asm! syntax specified in RFC 2873 [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 4 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 `green_threads` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `Command { std: "docker" "inspect" "3585aebeb17198e80b5652becaecff49bfa9db6d3bb00e223fa02f5b767c4729", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3585aebeb17198e80b5652becaecff49bfa9db6d3bb00e223fa02f5b767c4729", kill_on_drop: false }` [INFO] [stdout] 3585aebeb17198e80b5652becaecff49bfa9db6d3bb00e223fa02f5b767c4729