[INFO] updating cached repository arcnmx/encage-runtime
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/arcnmx/encage-runtime
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/arcnmx/encage-runtime" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/arcnmx/encage-runtime"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/arcnmx/encage-runtime'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/arcnmx/encage-runtime" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/arcnmx/encage-runtime"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/arcnmx/encage-runtime'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d983e6656d6d4de919f16352c36d6aca30d60f4e
[INFO] sha for GitHub repo arcnmx/encage-runtime: d983e6656d6d4de919f16352c36d6aca30d60f4e
[INFO] validating manifest of arcnmx/encage-runtime on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of arcnmx/encage-runtime on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing arcnmx/encage-runtime
[INFO] finished frobbing arcnmx/encage-runtime
[INFO] frobbed toml for arcnmx/encage-runtime written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/arcnmx/encage-runtime/Cargo.toml
[INFO] started frobbing arcnmx/encage-runtime
[INFO] finished frobbing arcnmx/encage-runtime
[INFO] frobbed toml for arcnmx/encage-runtime written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/arcnmx/encage-runtime/Cargo.toml
[INFO] crate arcnmx/encage-runtime already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/arcnmx/encage-runtime/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/arcnmx/nix-rust`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/arcnmx/nix-rust`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking arcnmx/encage-runtime against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-3/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/arcnmx/encage-runtime:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 55cc9417b09fce2d76f8cfc7aff0c3c79a28db09d2f3dbb135a3157f024c0923
[INFO] running `"docker" "start" "-a" "55cc9417b09fce2d76f8cfc7aff0c3c79a28db09d2f3dbb135a3157f024c0923"`
[INFO] [stderr]     Checking void v0.0.5
[INFO] [stderr]     Checking clap v1.5.6
[INFO] [stderr]     Checking nix v0.5.0-pre (https://github.com/arcnmx/nix-rust?branch=refactor#4719bed2)
[INFO] [stderr] error[E0591]: can't transmute zero-sized type
[INFO] [stderr]    --> /opt/crater/cargo-home/git/checkouts/nix-rust-8d37db6708c485ac/4719bed/src/sched.rs:168:20
[INFO] [stderr]     |
[INFO] [stderr] 168 |         ffi::clone(mem::transmute(callback), ptr as *mut c_void, flags, &mut cb)
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: source type: for<'r> extern "C" fn(*mut std::boxed::Box<(dyn std::ops::FnMut() -> isize + 'r)>) -> i32 {sched::clone::callback}
[INFO] [stderr]     = note: target type: *const for<'r> extern "C" fn(*const std::boxed::Box<(dyn std::ops::FnMut() -> isize + 'r)>) -> i32
[INFO] [stderr]     = help: cast with `as` to a pointer instead
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0591`.
[INFO] [stderr] error: Could not compile `nix`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "55cc9417b09fce2d76f8cfc7aff0c3c79a28db09d2f3dbb135a3157f024c0923"`
[INFO] running `"docker" "rm" "-f" "55cc9417b09fce2d76f8cfc7aff0c3c79a28db09d2f3dbb135a3157f024c0923"`
[INFO] [stdout] 55cc9417b09fce2d76f8cfc7aff0c3c79a28db09d2f3dbb135a3157f024c0923