[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 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobertohuertasm%2Frust-green-threads" "/workspace/builds/worker-19/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-19/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/robertohuertasm/rust-green-threads on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-19/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" "+1.60.0" "fetch" "--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-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ee121ab269b480bb5c96caf1f2b5097b5a9212403d05bf50946f0743ce9f1fe0
[INFO] running `Command { std: "docker" "start" "-a" "ee121ab269b480bb5c96caf1f2b5097b5a9212403d05bf50946f0743ce9f1fe0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee121ab269b480bb5c96caf1f2b5097b5a9212403d05bf50946f0743ce9f1fe0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee121ab269b480bb5c96caf1f2b5097b5a9212403d05bf50946f0743ce9f1fe0", kill_on_drop: false }`
[INFO] [stdout] ee121ab269b480bb5c96caf1f2b5097b5a9212403d05bf50946f0743ce9f1fe0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 500f8d59b5dfc2ec5ad22959a3e7f24980b9048b75049482c4a8f1fcec1ba1bc
[INFO] running `Command { std: "docker" "start" "-a" "500f8d59b5dfc2ec5ad22959a3e7f24980b9048b75049482c4a8f1fcec1ba1bc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling green_threads v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: cannot find macro `asm` in this scope
[INFO] [stdout]    --> src/main.rs:118:3
[INFO] [stdout]     |
[INFO] [stdout] 118 |   asm!("
[INFO] [stdout]     |   ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider importing one of these items:
[INFO] [stdout]             std::arch::asm
[INFO] [stdout]             core::arch::asm
[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(undefined_naked_function_abi)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0787]: 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] 
[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] 
[INFO] [stdout] error[E0787]: 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] 
[INFO] [stdout] error: aborting due to 5 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0787.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `green_threads` due to 6 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "500f8d59b5dfc2ec5ad22959a3e7f24980b9048b75049482c4a8f1fcec1ba1bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "500f8d59b5dfc2ec5ad22959a3e7f24980b9048b75049482c4a8f1fcec1ba1bc", kill_on_drop: false }`
[INFO] [stdout] 500f8d59b5dfc2ec5ad22959a3e7f24980b9048b75049482c4a8f1fcec1ba1bc