[INFO] updating cached repository vasi/qcow2-fuse
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/vasi/qcow2-fuse
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/vasi/qcow2-fuse" "work/ex/beta-1.38-1/sources/1.37.0/gh/vasi/qcow2-fuse"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/vasi/qcow2-fuse'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/vasi/qcow2-fuse" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/vasi/qcow2-fuse"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/vasi/qcow2-fuse'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d1083229aab06c62a3f3e3385c394912f05bc961
[INFO] sha for GitHub repo vasi/qcow2-fuse: d1083229aab06c62a3f3e3385c394912f05bc961
[INFO] validating manifest of vasi/qcow2-fuse on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of vasi/qcow2-fuse on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing vasi/qcow2-fuse
[INFO] finished frobbing vasi/qcow2-fuse
[INFO] frobbed toml for vasi/qcow2-fuse written to work/ex/beta-1.38-1/sources/1.37.0/gh/vasi/qcow2-fuse/Cargo.toml
[INFO] started frobbing vasi/qcow2-fuse
[INFO] finished frobbing vasi/qcow2-fuse
[INFO] frobbed toml for vasi/qcow2-fuse written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/vasi/qcow2-fuse/Cargo.toml
[INFO] crate vasi/qcow2-fuse already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/vasi/qcow2-fuse/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[INFO] the lockfile is outdated, regenerating it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" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing vasi/qcow2-fuse against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/vasi/qcow2-fuse:/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] a7a5d65c55f9fa6be588fcd2948fbf83e4e7e0ccbd10df2190c1bf423147d59d
[INFO] running `"docker" "start" "-a" "a7a5d65c55f9fa6be588fcd2948fbf83e4e7e0ccbd10df2190c1bf423147d59d"`
[INFO] [stderr]    Compiling linked-hash-map v0.0.9
[INFO] [stderr]    Compiling thread-scoped v1.0.2
[INFO] [stderr]    Compiling fuse v0.2.8
[INFO] [stderr]    Compiling positioned-io v0.2.2
[INFO] [stderr]    Compiling daemonize v0.2.3
[INFO] [stderr]    Compiling lru-cache v0.0.7
[INFO] [stderr]    Compiling qcow2 v0.1.2
[INFO] [stderr]    Compiling qcow2-fuse v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/opts.rs:108:24
[INFO] [stderr]     |
[INFO] [stderr] 108 |         let mut f: Box<Write> = if code == Exit::Ok {
[INFO] [stderr]     |                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0605]: non-primitive cast: `i32` as `libc::sigset_t`
[INFO] [stderr]   --> src/fuse_util.rs:49:32
[INFO] [stderr]    |
[INFO] [stderr] 49 |     let mut sigset: sigset_t = 0 as sigset_t;
[INFO] [stderr]    |                                ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: an `as` expression can only be used to convert between primitive types. Consider using the `From` trait
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0605`.
[INFO] [stderr] error: Could not compile `qcow2-fuse`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "a7a5d65c55f9fa6be588fcd2948fbf83e4e7e0ccbd10df2190c1bf423147d59d"`
[INFO] running `"docker" "rm" "-f" "a7a5d65c55f9fa6be588fcd2948fbf83e4e7e0ccbd10df2190c1bf423147d59d"`
[INFO] [stdout] a7a5d65c55f9fa6be588fcd2948fbf83e4e7e0ccbd10df2190c1bf423147d59d