[INFO] cloning repository https://github.com/ziyi-yan/green-threads
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ziyi-yan/green-threads" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fziyi-yan%2Fgreen-threads", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fziyi-yan%2Fgreen-threads'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 35b0b11681d4da067bf937dd7944f9bd3f17c50b
[INFO] testing ziyi-yan/green-threads against beta-2021-08-01 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fziyi-yan%2Fgreen-threads" "/workspace/builds/worker-113/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-113/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ziyi-yan/green-threads on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ziyi-yan/green-threads
[INFO] finished tweaking git repo https://github.com/ziyi-yan/green-threads
[INFO] tweaked toml for git repo https://github.com/ziyi-yan/green-threads written to /workspace/builds/worker-113/source/Cargo.toml
[INFO] crate git repo https://github.com/ziyi-yan/green-threads already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6535764003d42c34b20bc7e63afd121a625b27fff2052868481017a0b190dd85
[INFO] running `Command { std: "docker" "start" "-a" "6535764003d42c34b20bc7e63afd121a625b27fff2052868481017a0b190dd85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6535764003d42c34b20bc7e63afd121a625b27fff2052868481017a0b190dd85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6535764003d42c34b20bc7e63afd121a625b27fff2052868481017a0b190dd85", kill_on_drop: false }`
[INFO] [stdout] 6535764003d42c34b20bc7e63afd121a625b27fff2052868481017a0b190dd85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 842f1a0cd4b53b06fbeb667500fcf73cb7a249ae7c11eddcd50324cb07f089b3
[INFO] running `Command { std: "docker" "start" "-a" "842f1a0cd4b53b06fbeb667500fcf73cb7a249ae7c11eddcd50324cb07f089b3", kill_on_drop: false }`
[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:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(llvm_asm)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(naked_functions)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: Rust ABI is unsupported in naked functions
[INFO] [stdout]    --> src/main.rs:183:11
[INFO] [stdout]     |
[INFO] [stdout] 183 | unsafe fn switch(old: *mut ThreadContext, new: *const ThreadContext) {
[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 <https://github.com/rust-lang/rust/issues/32408>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: referencing function parameters is not allowed in naked functions
[INFO] [stdout]    --> src/main.rs:203:10
[INFO] [stdout]     |
[INFO] [stdout] 203 |     :"r"(old), "r"(new)
[INFO] [stdout]     |          ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: follow the calling convention in asm block to use parameters
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: referencing function parameters is not allowed in naked functions
[INFO] [stdout]    --> src/main.rs:203:20
[INFO] [stdout]     |
[INFO] [stdout] 203 |     :"r"(old), "r"(new)
[INFO] [stdout]     |                    ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: follow the calling convention in asm block to use parameters
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the LLVM-style inline assembly is unsupported in naked functions
[INFO] [stdout]    --> src/main.rs:184:5
[INFO] [stdout]     |
[INFO] [stdout] 184 | /     llvm_asm!("
[INFO] [stdout] 185 | |         mov     %rsp, 0x00($0)
[INFO] [stdout] 186 | |         mov     %r15, 0x08($0)
[INFO] [stdout] 187 | |         mov     %r14, 0x10($0)
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |     : "volatile", "alignstack"
[INFO] [stdout] 206 | |     );
[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 <https://github.com/rust-lang/rust/issues/32408>
[INFO] [stdout]     = help: use the new asm! syntax specified in RFC 2873
[INFO] [stdout]     = note: this warning originates in the macro `llvm_asm` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors; 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 `green-threads` due to 5 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "842f1a0cd4b53b06fbeb667500fcf73cb7a249ae7c11eddcd50324cb07f089b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "842f1a0cd4b53b06fbeb667500fcf73cb7a249ae7c11eddcd50324cb07f089b3", kill_on_drop: false }`
[INFO] [stdout] 842f1a0cd4b53b06fbeb667500fcf73cb7a249ae7c11eddcd50324cb07f089b3
