[INFO] fetching crate greenthread-future 0.1.0...
[INFO] testing greenthread-future-0.1.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate greenthread-future 0.1.0 into /workspace/builds/worker-33/source
[INFO] validating manifest of crates.io crate greenthread-future 0.1.0 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] removed /workspace/builds/worker-33/source/rust-toolchain
[INFO] started tweaking crates.io crate greenthread-future 0.1.0
[INFO] finished tweaking crates.io crate greenthread-future 0.1.0
[INFO] tweaked toml for crates.io crate greenthread-future 0.1.0 written to /workspace/builds/worker-33/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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] f549141024caa2b2403e2bee8ab868ae4d1631409acdf469c7f6835813555595
[INFO] running `Command { std: "docker" "start" "-a" "f549141024caa2b2403e2bee8ab868ae4d1631409acdf469c7f6835813555595", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f549141024caa2b2403e2bee8ab868ae4d1631409acdf469c7f6835813555595", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f549141024caa2b2403e2bee8ab868ae4d1631409acdf469c7f6835813555595", kill_on_drop: false }`
[INFO] [stdout] f549141024caa2b2403e2bee8ab868ae4d1631409acdf469c7f6835813555595
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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] b0e6c1ba130d3370bb586e61c17c991060f604125312c45f4ec9d84f4481f30d
[INFO] running `Command { std: "docker" "start" "-a" "b0e6c1ba130d3370bb586e61c17c991060f604125312c45f4ec9d84f4481f30d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling greenthread-future v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: cannot find macro `asm` in this scope
[INFO] [stdout]   --> src/lib.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |         asm!("" : "={rsp}"(rsp));
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider importing this macro:
[INFO] [stdout]            core::arch::asm
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `asm` in this scope
[INFO] [stdout]   --> src/lib.rs:98:9
[INFO] [stdout]    |
[INFO] [stdout] 98 |         asm!(r#"
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider importing this macro:
[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/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![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/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(naked_functions)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(untagged_unions)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0787]: naked functions must contain a single asm block
[INFO] [stdout]    --> src/lib.rs:97:5
[INFO] [stdout]     |
[INFO] [stdout] 97  | /     unsafe extern "sysv64" fn switch(&mut self, _target: &mut Self) {
[INFO] [stdout] 98  | |         asm!(r#"
[INFO] [stdout] 99  | |         mov [rdi], rsp
[INFO] [stdout] 100 | |         mov [rdi + 8*1], rbx
[INFO] [stdout] ...   |
[INFO] [stdout] 114 | |         "# :::: "volatile" "intel");
[INFO] [stdout] 115 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: naked functions cannot be inlined
[INFO] [stdout]   --> src/lib.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 96 |     #[inline(never)]
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors
[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 `greenthread-future` due to 8 previous errors
[INFO] running `Command { std: "docker" "inspect" "b0e6c1ba130d3370bb586e61c17c991060f604125312c45f4ec9d84f4481f30d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0e6c1ba130d3370bb586e61c17c991060f604125312c45f4ec9d84f4481f30d", kill_on_drop: false }`
[INFO] [stdout] b0e6c1ba130d3370bb586e61c17c991060f604125312c45f4ec9d84f4481f30d