[INFO] cloning repository https://github.com/niklabh/RustGreenThreads
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/niklabh/RustGreenThreads" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fniklabh%2FRustGreenThreads", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fniklabh%2FRustGreenThreads'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7be5265e54fb61ae6ee9fff8e065a890f41d1740
[INFO] checking niklabh/RustGreenThreads against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fniklabh%2FRustGreenThreads" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/niklabh/RustGreenThreads on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/niklabh/RustGreenThreads
[INFO] finished tweaking git repo https://github.com/niklabh/RustGreenThreads
[INFO] tweaked toml for git repo https://github.com/niklabh/RustGreenThreads written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/niklabh/RustGreenThreads already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 1 package
[INFO] [stderr]       Adding RustGreenThread v0.1.0 (/workspace/builds/worker-6-tc1/source)
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 79caab18c38823268d6b3571d289853d1a023fad7225e532212371c0e1b2ed21
[INFO] running `Command { std: "docker" "start" "-a" "79caab18c38823268d6b3571d289853d1a023fad7225e532212371c0e1b2ed21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79caab18c38823268d6b3571d289853d1a023fad7225e532212371c0e1b2ed21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79caab18c38823268d6b3571d289853d1a023fad7225e532212371c0e1b2ed21", kill_on_drop: false }`
[INFO] [stdout] 79caab18c38823268d6b3571d289853d1a023fad7225e532212371c0e1b2ed21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b26dd3f0bad2b20f6cf6248a932a3a0080c847272ad255e6c7537a836af4a58
[INFO] running `Command { std: "docker" "start" "-a" "3b26dd3f0bad2b20f6cf6248a932a3a0080c847272ad255e6c7537a836af4a58", kill_on_drop: false }`
[INFO] [stderr]     Checking RustGreenThread v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: cannot find macro `asm` in this scope
[INFO] [stdout]    --> src/main.rs:155:5
[INFO] [stdout]     |
[INFO] [stdout] 155 |     asm!("
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 3   + use core::arch::asm;
[INFO] [stdout]     |
[INFO] [stdout] 3   + use std::arch::asm;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `asm` in this scope
[INFO] [stdout]    --> src/main.rs:155:5
[INFO] [stdout]     |
[INFO] [stdout] 155 |     asm!("
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 3   + use core::arch::asm;
[INFO] [stdout]     |
[INFO] [stdout] 3   + use std::arch::asm;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0787]: naked functions must contain a single asm block
[INFO] [stdout]    --> src/main.rs:136:1
[INFO] [stdout]     |
[INFO] [stdout] 136 | fn guard() {
[INFO] [stdout]     | ^^^^^^^^^^
[INFO] [stdout] 137 |     unsafe {
[INFO] [stdout] 138 |         let rt_ptr = RUNTIME as *mut Runtime;
[INFO] [stdout]     |         ------------------------------------- non-asm is unsupported in naked functions
[INFO] [stdout] 139 |         let rt = &mut *rt_ptr;
[INFO] [stdout]     |         ---------------------- non-asm is unsupported in naked functions
[INFO] [stdout] 140 |         println!("THREAD {} FINISHED.", rt.threads[rt.current].id);
[INFO] [stdout]     |         ---------------------------------------------------------- non-asm is unsupported in naked functions
[INFO] [stdout] 141 |         rt.t_return();
[INFO] [stdout]     |         -------------- non-asm is unsupported in naked functions
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0787]: naked functions must contain a single asm block
[INFO] [stdout]    --> src/main.rs:136:1
[INFO] [stdout]     |
[INFO] [stdout] 136 | fn guard() {
[INFO] [stdout]     | ^^^^^^^^^^
[INFO] [stdout] 137 |     unsafe {
[INFO] [stdout] 138 |         let rt_ptr = RUNTIME as *mut Runtime;
[INFO] [stdout]     |         ------------------------------------- non-asm is unsupported in naked functions
[INFO] [stdout] 139 |         let rt = &mut *rt_ptr;
[INFO] [stdout]     |         ---------------------- non-asm is unsupported in naked functions
[INFO] [stdout] 140 |         println!("THREAD {} FINISHED.", rt.threads[rt.current].id);
[INFO] [stdout]     |         ---------------------------------------------------------- non-asm is unsupported in naked functions
[INFO] [stdout] 141 |         rt.t_return();
[INFO] [stdout]     |         -------------- non-asm is unsupported in naked functions
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0787`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0787`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `RustGreenThread` (bin "RustGreenThread") due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `RustGreenThread` (bin "RustGreenThread" test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "3b26dd3f0bad2b20f6cf6248a932a3a0080c847272ad255e6c7537a836af4a58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b26dd3f0bad2b20f6cf6248a932a3a0080c847272ad255e6c7537a836af4a58", kill_on_drop: false }`
[INFO] [stdout] 3b26dd3f0bad2b20f6cf6248a932a3a0080c847272ad255e6c7537a836af4a58