[INFO] cloning repository https://github.com/01shadowalker01/ShadowOS
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/01shadowalker01/ShadowOS" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F01shadowalker01%2FShadowOS", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F01shadowalker01%2FShadowOS'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5940f0a8a44c331cc00489658fd713c5ad40ed2e
[INFO] checking 01shadowalker01/ShadowOS against try#8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346 for pr-86194
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F01shadowalker01%2FShadowOS" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/01shadowalker01/ShadowOS on toolchain 8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-10/source/.cargo/config
[INFO] started tweaking git repo https://github.com/01shadowalker01/ShadowOS
[INFO] finished tweaking git repo https://github.com/01shadowalker01/ShadowOS
[INFO] tweaked toml for git repo https://github.com/01shadowalker01/ShadowOS written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/01shadowalker01/ShadowOS already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded uart_16550 v0.2.15
[INFO] [stderr]   Downloaded x86_64 v0.14.3
[INFO] [stderr]   Downloaded x86_64 v0.7.2
[INFO] [stderr]   Downloaded getopts v0.2.19
[INFO] [stderr]   Downloaded font8x8 v0.2.5
[INFO] [stderr]   Downloaded libc v0.2.59
[INFO] [stderr]   Downloaded volatile v0.4.4
[INFO] [stderr]   Downloaded bootloader v0.6.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a818b08d1e0de07964daea2e6f60d02df4f90adf5287d64dd245e6f2813e3bf0
[INFO] running `Command { std: "docker" "start" "-a" "a818b08d1e0de07964daea2e6f60d02df4f90adf5287d64dd245e6f2813e3bf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a818b08d1e0de07964daea2e6f60d02df4f90adf5287d64dd245e6f2813e3bf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a818b08d1e0de07964daea2e6f60d02df4f90adf5287d64dd245e6f2813e3bf0", kill_on_drop: false }`
[INFO] [stdout] a818b08d1e0de07964daea2e6f60d02df4f90adf5287d64dd245e6f2813e3bf0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 709fea3bb33905139357f7e0654f4aa735a35e78777ecf00354dc3c6295d3a88
[INFO] running `Command { std: "docker" "start" "-a" "709fea3bb33905139357f7e0654f4aa735a35e78777ecf00354dc3c6295d3a88", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling libc v0.2.59
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling x86_64 v0.14.3
[INFO] [stderr]    Compiling llvm-tools v0.1.1
[INFO] [stderr]     Checking bit_field v0.9.0
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking cast v0.2.2
[INFO] [stderr]     Checking zero v0.1.2
[INFO] [stderr]     Checking volatile v0.4.4
[INFO] [stderr]     Checking ux v0.1.3
[INFO] [stderr]     Checking spin v0.5.0
[INFO] [stderr]     Checking font8x8 v0.2.5
[INFO] [stderr]     Checking usize_conversions v0.2.0
[INFO] [stderr]     Checking volatile v0.2.6
[INFO] [stderr]     Checking spin v0.4.10
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.10/src/lib.rs:6:43
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![cfg_attr(feature = "const_fn", feature(const_fn))]
[INFO] [stdout]   |                                           ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.10/src/lib.rs:6:43
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![cfg_attr(feature = "const_fn", feature(const_fn))]
[INFO] [stdout]   |                                           ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[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`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "709fea3bb33905139357f7e0654f4aa735a35e78777ecf00354dc3c6295d3a88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "709fea3bb33905139357f7e0654f4aa735a35e78777ecf00354dc3c6295d3a88", kill_on_drop: false }`
[INFO] [stdout] 709fea3bb33905139357f7e0654f4aa735a35e78777ecf00354dc3c6295d3a88