[INFO] fetching crate alternate-future 0.1.4...
[INFO] checking alternate-future-0.1.4 against master#c2f2db79ca3024f68d22b45aa22b570775c2c4ad for pr-124157
[INFO] extracting crate alternate-future 0.1.4 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate alternate-future 0.1.4 on toolchain c2f2db79ca3024f68d22b45aa22b570775c2c4ad
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate alternate-future 0.1.4
[INFO] finished tweaking crates.io crate alternate-future 0.1.4
[INFO] tweaked toml for crates.io crate alternate-future 0.1.4 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 5 packages to latest compatible versions
[INFO] [stderr]       Adding lazy_static v0.1.16 (latest: v1.4.0)
[INFO] [stderr]       Adding num_cpus v0.2.13 (latest: v1.16.0)
[INFO] [stderr]       Adding spin v0.3.5 (latest: v0.9.8)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num_cpus v0.2.13
[INFO] [stderr]   Downloaded spin v0.3.5
[INFO] [stderr]   Downloaded lazy_static v0.1.16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2406632cb48f022d175baa32c8c468ff23944efb8200185ad7f6115210fd1748
[INFO] running `Command { std: "docker" "start" "-a" "2406632cb48f022d175baa32c8c468ff23944efb8200185ad7f6115210fd1748", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2406632cb48f022d175baa32c8c468ff23944efb8200185ad7f6115210fd1748", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2406632cb48f022d175baa32c8c468ff23944efb8200185ad7f6115210fd1748", kill_on_drop: false }`
[INFO] [stdout] 2406632cb48f022d175baa32c8c468ff23944efb8200185ad7f6115210fd1748
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6edbfccf03dd5685c010d260bf8259acf54e96ff89f460e3d84020946943fa0d
[INFO] running `Command { std: "docker" "start" "-a" "6edbfccf03dd5685c010d260bf8259acf54e96ff89f460e3d84020946943fa0d", kill_on_drop: false }`
[INFO] [stderr]     Checking spin v0.3.5
[INFO] [stderr]     Checking lazy_static v0.1.16
[INFO] [stderr]     Checking num_cpus v0.2.13
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/spin-0.3.5/src/lib.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(const_fn, asm)]
[INFO] [stdout]   |            ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `asm` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/spin-0.3.5/src/mutex.rs:102:14
[INFO] [stdout]     |
[INFO] [stdout] 102 |     unsafe { asm!("pause" :::: "volatile"); }
[INFO] [stdout]     |              ^^^
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]     |
[INFO] [stdout] 1   + use core::arch::asm;
[INFO] [stdout]     |
[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 E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `spin` (lib) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "6edbfccf03dd5685c010d260bf8259acf54e96ff89f460e3d84020946943fa0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6edbfccf03dd5685c010d260bf8259acf54e96ff89f460e3d84020946943fa0d", kill_on_drop: false }`
[INFO] [stdout] 6edbfccf03dd5685c010d260bf8259acf54e96ff89f460e3d84020946943fa0d
