[INFO] cloning repository emallson/infmax-est
[INFO] running `"git" "clone" "--bare" "git://github.com/emallson/infmax-est.git" "work/cache/sources/gh/emallson/infmax-est"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/emallson/infmax-est'...
[INFO] running `"git" "clone" "work/cache/sources/gh/emallson/infmax-est" "work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/emallson/infmax-est"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/emallson/infmax-est'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/emallson/infmax-est" "work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/emallson/infmax-est"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/emallson/infmax-est'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 96b5b57ae00db9b603add940add1147fe85a68c0
[INFO] sha for GitHub repo emallson/infmax-est: 96b5b57ae00db9b603add940add1147fe85a68c0
[INFO] validating manifest of emallson/infmax-est on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of emallson/infmax-est on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing emallson/infmax-est
[INFO] finished frobbing emallson/infmax-est
[INFO] frobbed toml for emallson/infmax-est written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/emallson/infmax-est/Cargo.toml
[INFO] started frobbing emallson/infmax-est
[INFO] finished frobbing emallson/infmax-est
[INFO] frobbed toml for emallson/infmax-est written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/emallson/infmax-est/Cargo.toml
[INFO] crate emallson/infmax-est already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking emallson/infmax-est against try#d3301713b54af69ca9de941a8c6b0d8287dbd6df for pr-61874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-2/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/emallson/infmax-est:/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" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b870e8bbe988b9187da377426e3ac9cc1f93d97025e9629ec05eafbd143ec539
[INFO] running `"docker" "start" "-a" "b870e8bbe988b9187da377426e3ac9cc1f93d97025e9629ec05eafbd143ec539"`
[INFO] [stderr]    Compiling byteorder v0.4.2
[INFO] [stderr]     Checking slog v1.5.2
[INFO] [stderr]     Checking ordermap v0.2.7
[INFO] [stderr]     Checking isatty v0.1.3
[INFO] [stderr]     Checking capnp v0.7.5
[INFO] [stderr]     Checking aho-corasick v0.6.2
[INFO] [stderr]     Checking chrono v0.2.25
[INFO] [stderr]     Checking quickcheck v0.4.1
[INFO] [stderr] error[E0277]: `*mut (dyn core::ops::Fn() + 'static)` cannot be shared between threads safely
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/slog-1.5.2/src/ser.rs:228:6
[INFO] [stderr]     |
[INFO] [stderr] 228 | impl SyncSerialize for fmt::Arguments<'static> {}
[INFO] [stderr]     |      ^^^^^^^^^^^^^ `*mut (dyn core::ops::Fn() + 'static)` cannot be shared between threads safely
[INFO] [stderr]     |
[INFO] [stderr]     = help: within `core::fmt::Arguments<'static>`, the trait `core::marker::Sync` is not implemented for `*mut (dyn core::ops::Fn() + 'static)`
[INFO] [stderr]     = note: required because it appears within the type `core::marker::PhantomData<*mut (dyn core::ops::Fn() + 'static)>`
[INFO] [stderr]     = note: required because it appears within the type `core::fmt::Void`
[INFO] [stderr]     = note: required because it appears within the type `&'static core::fmt::Void`
[INFO] [stderr]     = note: required because it appears within the type `core::fmt::ArgumentV1<'static>`
[INFO] [stderr]     = note: required because it appears within the type `[core::fmt::ArgumentV1<'static>]`
[INFO] [stderr]     = note: required because it appears within the type `&'static [core::fmt::ArgumentV1<'static>]`
[INFO] [stderr]     = note: required because it appears within the type `core::fmt::Arguments<'static>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: Could not compile `slog`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning[E0502]: cannot borrow `*reff` as immutable because it is also borrowed as mutable
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/capnp-0.7.5/src/private/layout.rs:643:47
[INFO] [stderr]     |
[INFO] [stderr] 643 |         let ptr = try!(follow_fars(&mut reff, (*reff).target(), &mut segment));
[INFO] [stderr]     |                        ----------- ---------  ^^^^^^^ immutable borrow occurs here
[INFO] [stderr]     |                        |           |
[INFO] [stderr]     |                        |           mutable borrow occurs here
[INFO] [stderr]     |                        mutable borrow later used by call
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]     = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]     = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "b870e8bbe988b9187da377426e3ac9cc1f93d97025e9629ec05eafbd143ec539"`
[INFO] running `"docker" "rm" "-f" "b870e8bbe988b9187da377426e3ac9cc1f93d97025e9629ec05eafbd143ec539"`
[INFO] [stdout] b870e8bbe988b9187da377426e3ac9cc1f93d97025e9629ec05eafbd143ec539