[INFO] cloning repository https://github.com/robertohuertasm/rust-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/robertohuertasm/rust-green-threads" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobertohuertasm%2Frust-green-threads", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobertohuertasm%2Frust-green-threads'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 92c58744f87c3a7f929c8ce1fe321752740b161c
[INFO] testing robertohuertasm/rust-green-threads against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobertohuertasm%2Frust-green-threads" "/workspace/builds/worker-71/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-71/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/robertohuertasm/rust-green-threads on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/robertohuertasm/rust-green-threads
[INFO] finished tweaking git repo https://github.com/robertohuertasm/rust-green-threads
[INFO] tweaked toml for git repo https://github.com/robertohuertasm/rust-green-threads written to /workspace/builds/worker-71/source/Cargo.toml
[INFO] crate git repo https://github.com/robertohuertasm/rust-green-threads already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ddf7503e149c6e818d19cd5fa35c2ddfaece3354e6cdce08e97f2ea3702caead
[INFO] running `Command { std: "docker" "start" "-a" "ddf7503e149c6e818d19cd5fa35c2ddfaece3354e6cdce08e97f2ea3702caead", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ddf7503e149c6e818d19cd5fa35c2ddfaece3354e6cdce08e97f2ea3702caead", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddf7503e149c6e818d19cd5fa35c2ddfaece3354e6cdce08e97f2ea3702caead", kill_on_drop: false }`
[INFO] [stdout] ddf7503e149c6e818d19cd5fa35c2ddfaece3354e6cdce08e97f2ea3702caead
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9ab0cc1b194c736451dffded8b2c42542d7dbee3e56fe2b2b2828bfb4512adfd
[INFO] running `Command { std: "docker" "start" "-a" "9ab0cc1b194c736451dffded8b2c42542d7dbee3e56fe2b2b2828bfb4512adfd", kill_on_drop: false }`
[INFO] [stderr]    Compiling green_threads v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: the legacy LLVM-style asm! syntax is no longer supported
[INFO] [stdout]    --> src/main.rs:118:3
[INFO] [stdout]     |
[INFO] [stdout] 118 |     asm!("
[INFO] [stdout]     |     ^---
[INFO] [stdout]     |     |
[INFO] [stdout]     |  ___help: replace with: `llvm_asm!`
[INFO] [stdout]     | |
[INFO] [stdout] 119 | |         mov     %rsp, 0x00($0)
[INFO] [stdout] 120 | |         mov     %r15, 0x08($0)
[INFO] [stdout] 121 | |         mov     %r14, 0x10($0)
[INFO] [stdout] ...   |
[INFO] [stdout] 140 | |   : "alignstack" // needed to work on windows
[INFO] [stdout] 141 | |   );
[INFO] [stdout]     | |____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider migrating to the new asm! syntax specified in RFC 2873
[INFO] [stdout]     = note: alternatively, switch to llvm_asm! to keep your code working as it is
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(asm)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(naked_functions)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: Rust ABI is unsupported in naked functions
[INFO] [stdout]    --> src/main.rs:100:4
[INFO] [stdout]     |
[INFO] [stdout] 100 | fn guard() {
[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] warning: naked functions must contain a single asm block
[INFO] [stdout]    --> src/main.rs:100:1
[INFO] [stdout]     |
[INFO] [stdout] 100 | / fn guard() {
[INFO] [stdout] 101 | |   unsafe {
[INFO] [stdout] 102 | |     let rt_ptr = RUNTIME as *mut Runtime;
[INFO] [stdout]     | |     ------------------------------------- non-asm is unsupported in naked functions
[INFO] [stdout] 103 | |     let rt = &mut *rt_ptr;
[INFO] [stdout]     | |     ---------------------- non-asm is unsupported in naked functions
[INFO] [stdout] 104 | |     println!("THREAD {} FINISHED", rt.threads[rt.current].id);
[INFO] [stdout]     | |     ---------------------------------------------------------- non-asm is unsupported in naked functions
[INFO] [stdout] 105 | |     rt.t_return();
[INFO] [stdout]     | |     -------------- non-asm is unsupported in naked functions
[INFO] [stdout] 106 | |   }
[INFO] [stdout] 107 | | }
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: Rust ABI is unsupported in naked functions
[INFO] [stdout]    --> src/main.rs:117:11
[INFO] [stdout]     |
[INFO] [stdout] 117 | unsafe fn switch(old: *mut ThreadContext, new: *const ThreadContext) {
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: naked functions must contain a single asm block
[INFO] [stdout]    --> src/main.rs:117:1
[INFO] [stdout]     |
[INFO] [stdout] 117 | / unsafe fn switch(old: *mut ThreadContext, new: *const ThreadContext) {
[INFO] [stdout] 118 | |   asm!("
[INFO] [stdout] 119 | |         mov     %rsp, 0x00($0)
[INFO] [stdout] 120 | |         mov     %r15, 0x08($0)
[INFO] [stdout] ...   |
[INFO] [stdout] 141 | |   );
[INFO] [stdout] 142 | | }
[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] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 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" "9ab0cc1b194c736451dffded8b2c42542d7dbee3e56fe2b2b2828bfb4512adfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ab0cc1b194c736451dffded8b2c42542d7dbee3e56fe2b2b2828bfb4512adfd", kill_on_drop: false }`
[INFO] [stdout] 9ab0cc1b194c736451dffded8b2c42542d7dbee3e56fe2b2b2828bfb4512adfd
