[INFO] fetching crate async-wormhole 0.3.7...
[INFO] testing async-wormhole-0.3.7 against 1.60.0 for beta-1.61-1
[INFO] extracting crate async-wormhole 0.3.7 into /workspace/builds/worker-84/source
[INFO] validating manifest of crates.io crate async-wormhole 0.3.7 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 crates.io crate async-wormhole 0.3.7
[INFO] finished tweaking crates.io crate async-wormhole 0.3.7
[INFO] tweaked toml for crates.io crate async-wormhole 0.3.7 written to /workspace/builds/worker-84/source/Cargo.toml
[INFO] crate crates.io crate async-wormhole 0.3.7 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded plotters-backend v0.3.0
[INFO] [stderr]   Downloaded serde_derive v1.0.125
[INFO] [stderr]   Downloaded backtrace v0.3.56
[INFO] [stderr]   Downloaded vec-arena v1.1.0
[INFO] [stderr]   Downloaded criterion v0.3.4
[INFO] [stderr]   Downloaded object v0.23.0
[INFO] [stderr]   Downloaded async-executor v1.4.0
[INFO] [stderr]   Downloaded addr2line v0.14.1
[INFO] [stderr]   Downloaded plotters-svg v0.3.0
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.73
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.73
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.73
[INFO] [stderr]   Downloaded js-sys v0.3.50
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.73
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.73
[INFO] [stderr]   Downloaded syn v1.0.68
[INFO] [stderr]   Downloaded bstr v0.2.15
[INFO] [stderr]   Downloaded web-sys v0.3.50
[INFO] [stderr]   Downloaded switcheroo v0.2.9
[INFO] [stderr]   Downloaded plotters v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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] 7fe549c676ee843aea8d535241bcc1d8bde443999ce4fac46ecab54687325926
[INFO] running `Command { std: "docker" "start" "-a" "7fe549c676ee843aea8d535241bcc1d8bde443999ce4fac46ecab54687325926", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7fe549c676ee843aea8d535241bcc1d8bde443999ce4fac46ecab54687325926", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fe549c676ee843aea8d535241bcc1d8bde443999ce4fac46ecab54687325926", kill_on_drop: false }`
[INFO] [stdout] 7fe549c676ee843aea8d535241bcc1d8bde443999ce4fac46ecab54687325926
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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] 462d3bc138df7bce232a3587b4ff1f7ee03c0525c71afde774e13d84226cf416
[INFO] running `Command { std: "docker" "start" "-a" "462d3bc138df7bce232a3587b4ff1f7ee03c0525c71afde774e13d84226cf416", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.92
[INFO] [stderr]    Compiling switcheroo v0.2.9
[INFO] [stdout] error: cannot find macro `asm` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/switcheroo-0.2.9/src/arch/unix_x64.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |         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: cannot find macro `asm` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/switcheroo-0.2.9/src/arch/unix_x64.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     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: cannot find macro `asm` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/switcheroo-0.2.9/src/arch/unix_x64.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     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]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/switcheroo-0.2.9/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(asm, naked_functions)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0787]: naked functions must contain a single asm block
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/switcheroo-0.2.9/src/arch/unix_x64.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | /     unsafe extern "C" fn trampoline() {
[INFO] [stdout] 21 | |         asm!(
[INFO] [stdout] 22 | |             // Stops unwinding/backtracing at this function.
[INFO] [stdout] 23 | |             ".cfi_undefined rip",
[INFO] [stdout] ...  |
[INFO] [stdout] 26 | |         )
[INFO] [stdout] 27 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 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 `switcheroo` due to 6 previous errors
[INFO] running `Command { std: "docker" "inspect" "462d3bc138df7bce232a3587b4ff1f7ee03c0525c71afde774e13d84226cf416", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "462d3bc138df7bce232a3587b4ff1f7ee03c0525c71afde774e13d84226cf416", kill_on_drop: false }`
[INFO] [stdout] 462d3bc138df7bce232a3587b4ff1f7ee03c0525c71afde774e13d84226cf416