[INFO] updating cached repository https://github.com/emallson/tiptop
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b7f7677b96f1a1ec19889d1e1000b8aab047d265
[INFO] testing emallson/tiptop against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Femallson%2Ftiptop" "work/builds/worker-0/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/emallson/tiptop on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/emallson/tiptop
[INFO] finished tweaking git repo https://github.com/emallson/tiptop
[INFO] tweaked toml for git repo https://github.com/emallson/tiptop written to work/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/emallson/tiptop already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 1db1a463e2c9215488b209b68852b5a0c123425718f311aebc8331ccbb4362b8
[INFO] running `"docker" "start" "-a" "1db1a463e2c9215488b209b68852b5a0c123425718f311aebc8331ccbb4362b8"`
[INFO] [stderr]    Compiling libc v0.2.33
[INFO] [stderr]    Compiling regex-syntax v0.3.9
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stderr]    Compiling log v0.3.8
[INFO] [stderr]    Compiling byteorder v0.4.2
[INFO] [stderr]    Compiling num-traits v0.1.40
[INFO] [stderr]    Compiling scopeguard v0.3.2
[INFO] [stderr]    Compiling either v1.1.0
[INFO] [stderr]    Compiling lazy_static v0.2.8
[INFO] [stderr]    Compiling rayon-core v1.2.1
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling futures v0.1.16
[INFO] [stderr]    Compiling ordermap v0.2.12
[INFO] [stderr]    Compiling fixedbitset v0.1.8
[INFO] [stderr]    Compiling slog v1.7.1
[INFO] [stderr]    Compiling dtoa v0.4.2
[INFO] [stderr]    Compiling fnv v1.0.5
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling bit-vec v0.4.4
[INFO] [stderr]    Compiling strsim v0.5.2
[INFO] [stderr]    Compiling serde v0.9.15
[INFO] [stderr]    Compiling itoa v0.3.4
[INFO] [stderr]    Compiling regex-syntax v0.4.1
[INFO] [stderr]    Compiling serde v1.0.15
[INFO] [stderr]    Compiling as_num v0.2.3
[INFO] [stderr]    Compiling byteorder v1.1.0
[INFO] [stderr]    Compiling strsim v0.6.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling colored v1.5.2
[INFO] [stderr]    Compiling coco v0.1.1
[INFO] [stderr]    Compiling capnp v0.7.5
[INFO] [stderr]    Compiling slog-serde v1.0.0-alpha9
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling rand v0.3.16
[INFO] [stderr]    Compiling memchr v1.0.1
[INFO] [stderr]    Compiling num_cpus v1.6.2
[INFO] [stderr]    Compiling time v0.1.38
[INFO] [stderr]    Compiling isatty v0.1.3
[INFO] [stderr]    Compiling num-integer v0.1.35
[INFO] [stderr] warning[E0502]: cannot borrow `*reff` as immutable because it is also borrowed as mutable
[INFO] [stderr]    --> /opt/rustwide/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]    Compiling serde_json v0.8.6
[INFO] [stderr]    Compiling thread_local v0.3.4
[INFO] [stderr]    Compiling bit-set v0.4.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling aho-corasick v0.6.3
[INFO] [stderr]    Compiling nom v3.2.1
[INFO] [stderr]    Compiling num-iter v0.1.34
[INFO] [stderr]    Compiling capnpc v0.7.5
[INFO] [stderr]    Compiling slog-extra v0.1.2
[INFO] [stderr]    Compiling statrs v0.8.0
[INFO] [stderr]    Compiling rand-mersenne-twister v0.2.0 (https://github.com/emallson/rust-mersenne-twister.git#2e01e0ee)
[INFO] [stderr]    Compiling gurobi v0.1.1 (https://github.com/emallson/gurobi.rs.git#e275cfae)
[INFO] [stderr]    Compiling regex v0.2.2
[INFO] [stderr]    Compiling num v0.1.40
[INFO] [stderr]    Compiling slog-stream v1.2.1
[INFO] [stderr]    Compiling serde_derive_internals v0.16.0
[INFO] [stderr]    Compiling serde_codegen_internals v0.14.2
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling chrono v0.2.25
[INFO] [stderr]    Compiling rayon v0.8.2
[INFO] [stderr]    Compiling serde_json v0.9.10
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling serde_json v1.0.3
[INFO] [stderr]    Compiling bincode v0.8.0
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling slog-json v1.2.1
[INFO] [stderr]    Compiling slog-term v1.5.0
[INFO] [stderr]    Compiling env_logger v0.3.5
[INFO] [stderr]    Compiling docopt v0.6.86
[INFO] [stderr]    Compiling quickcheck v0.4.1
[INFO] [stderr]    Compiling petgraph v0.4.7
[INFO] [stderr]    Compiling serde_derive v0.9.15
[INFO] [stderr]    Compiling serde_derive v1.0.15
[INFO] [stderr]    Compiling vec-graph v0.1.0 (https://github.com/emallson/vec-graph.git#965dc3b9)
[INFO] [stderr]    Compiling ris v0.1.0 (https://github.com/emallson/ris.rs.git#95d094fa)
[INFO] [stderr]    Compiling capngraph v0.3.0 (https://github.com/emallson/capngraph.git#997b39ef)
[INFO] [stderr]    Compiling docopt v0.8.1
[INFO] [stderr]    Compiling tiptop v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `EdgeIndex`
[INFO] [stderr]   --> src/main.rs:35:35
[INFO] [stderr]    |
[INFO] [stderr] 35 | use vec_graph::{Graph, NodeIndex, EdgeIndex};
[INFO] [stderr]    |                                   ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/main.rs:132:10
[INFO] [stderr]     |
[INFO] [stderr] 132 |     for (i, set) in rr_sets.iter().enumerate() {
[INFO] [stderr]     |          ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: linking with `cc` failed: exit code: 1
[INFO] [stderr]   |
[INFO] [stderr]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/tiptop-050653e5b04bcb9e.tiptop.48ukcfks-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/tiptop-050653e5b04bcb9e.tiptop.48ukcfks-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/tiptop-050653e5b04bcb9e.tiptop.48ukcfks-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/tiptop-050653e5b04bcb9e.tiptop.48ukcfks-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/tiptop-050653e5b04bcb9e.tiptop.48ukcfks-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/tiptop-050653e5b04bcb9e.tiptop.48ukcfks-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/tiptop-050653e5b04bcb9e.tiptop.48ukcfks-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/tiptop-050653e5b04bcb9e.tiptop.48ukcfks-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/tiptop-050653e5b04bcb9e.tiptop.48ukcfks-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/tiptop-050653e5b04bcb9e.tiptop.48ukcfks-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/tiptop-050653e5b04bcb9e.tiptop.48ukcfks-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/tiptop-050653e5b04bcb9e.tiptop.48ukcfks-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/tiptop-050653e5b04bcb9e.tiptop.48ukcfks-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/tiptop-050653e5b04bcb9e.tiptop.48ukcfks-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/tiptop-050653e5b04bcb9e.tiptop.48ukcfks-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/tiptop-050653e5b04bcb9e.tiptop.48ukcfks-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/tiptop-050653e5b04bcb9e" "/opt/rustwide/target/debug/deps/tiptop-050653e5b04bcb9e.2k49z1djb0cm9vk0.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-Wl,-O1" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libgurobi-c0ab300651f0cf9d.rlib" "/opt/rustwide/target/debug/deps/librand_mersenne_twister-247cb13af8c2a9d6.rlib" "/opt/rustwide/target/debug/deps/libbincode-90c0c1aa6ec63fc1.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-d251ec3c5b89960c.rlib" "/opt/rustwide/target/debug/deps/libserde_json-13f85f65bb953b84.rlib" "/opt/rustwide/target/debug/deps/libdtoa-b3fd028fd9e7116e.rlib" "/opt/rustwide/target/debug/deps/libitoa-af581d8e2c656f63.rlib" "/opt/rustwide/target/debug/deps/libslog_json-b3281b13fb41b48a.rlib" "/opt/rustwide/target/debug/deps/libserde_json-7945837660a30d0a.rlib" "/opt/rustwide/target/debug/deps/libdtoa-8419be38be53b824.rlib" "/opt/rustwide/target/debug/deps/libitoa-43c6b2214cfeae5a.rlib" "/opt/rustwide/target/debug/deps/libslog_serde-8d0c64680dd67e25.rlib" "/opt/rustwide/target/debug/deps/libserde-db53e53aab19931b.rlib" "/opt/rustwide/target/debug/deps/libslog_term-56865e37db2b8f3c.rlib" "/opt/rustwide/target/debug/deps/libchrono-04944e4c100b689d.rlib" "/opt/rustwide/target/debug/deps/libnum-910b926e287a2c8c.rlib" "/opt/rustwide/target/debug/deps/libnum_iter-426f93ff0f4c8af2.rlib" "/opt/rustwide/target/debug/deps/libnum_integer-5eeed4770dcbd470.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-91dc25eef655724c.rlib" "/opt/rustwide/target/debug/deps/libtime-a0418fde2cd77673.rlib" "/opt/rustwide/target/debug/deps/libisatty-68bfe951973004b6.rlib" "/opt/rustwide/target/debug/deps/libslog_stream-fc40edf27fc714fb.rlib" "/opt/rustwide/target/debug/deps/libslog_extra-2ac7b0fe61ffd3b9.rlib" "/opt/rustwide/target/debug/deps/libslog-e29bf01bcfb042b0.rlib" "/opt/rustwide/target/debug/deps/libdocopt-4c4e1a36a81905a1.rlib" "/opt/rustwide/target/debug/deps/libserde-15fd13b68aac3b48.rlib" "/opt/rustwide/target/debug/deps/libstrsim-7ac208fce30e3896.rlib" "/opt/rustwide/target/debug/deps/libregex-c979fe9ba7f1b1da.rlib" "/opt/rustwide/target/debug/deps/libutf8_ranges-8c5208520f1d51f0.rlib" "/opt/rustwide/target/debug/deps/libregex_syntax-a1a35669b3d29bb9.rlib" "/opt/rustwide/target/debug/deps/libthread_local-db8f5ff98af82a5d.rlib" "/opt/rustwide/target/debug/deps/libunreachable-52e9cf1a7767e71a.rlib" "/opt/rustwide/target/debug/deps/libvoid-b48a40439fdde726.rlib" "/opt/rustwide/target/debug/deps/libaho_corasick-8551380e997c6108.rlib" "/opt/rustwide/target/debug/deps/libmemchr-2525a70002d71dd1.rlib" "/opt/rustwide/target/debug/deps/libris-903eacf349a1154c.rlib" "/opt/rustwide/target/debug/deps/libas_num-c4138bbc10c10263.rlib" "/opt/rustwide/target/debug/deps/libbit_set-469fec3ab5279db2.rlib" "/opt/rustwide/target/debug/deps/libbit_vec-c2566a56f743fa1b.rlib" "/opt/rustwide/target/debug/deps/libcapngraph-c39c71375c80fd72.rlib" "/opt/rustwide/target/debug/deps/libcapnp-eac28dbf8705a461.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-27a6fc1d32b25594.rlib" "/opt/rustwide/target/debug/deps/libvec_graph-884db94afb0c04f8.rlib" "/opt/rustwide/target/debug/deps/libfnv-55d061d532ce62ca.rlib" "/opt/rustwide/target/debug/deps/libpetgraph-748422365e0104ec.rlib" "/opt/rustwide/target/debug/deps/libquickcheck-9f6e996471e5e53e.rlib" "/opt/rustwide/target/debug/deps/libenv_logger-ae6960b2e6e3d05e.rlib" "/opt/rustwide/target/debug/deps/libregex-0ad4902365c9d5e8.rlib" "/opt/rustwide/target/debug/deps/libutf8_ranges-f8d5cedfa7cfe956.rlib" "/opt/rustwide/target/debug/deps/libregex_syntax-21ff740e60e3b22a.rlib" "/opt/rustwide/target/debug/deps/libthread_local-b746187189e929a7.rlib" "/opt/rustwide/target/debug/deps/libthread_id-7873fd366476bb39.rlib" "/opt/rustwide/target/debug/deps/libaho_corasick-c210099521cbdc26.rlib" "/opt/rustwide/target/debug/deps/libmemchr-58fa9a019055d5dd.rlib" "/opt/rustwide/target/debug/deps/liblog-c00ebfa9f2f90c44.rlib" "/opt/rustwide/target/debug/deps/libordermap-e8b127b88c2aa667.rlib" "/opt/rustwide/target/debug/deps/libfixedbitset-80d8ab5def6d4391.rlib" "/opt/rustwide/target/debug/deps/libstatrs-19b7a91db26c645a.rlib" "/opt/rustwide/target/debug/deps/librayon-609e73fce732aa95.rlib" "/opt/rustwide/target/debug/deps/librayon_core-a1f8fba78382ab44.rlib" "/opt/rustwide/target/debug/deps/librand-6c7f206285375eb0.rlib" "/opt/rustwide/target/debug/deps/libnum_cpus-496f75105ba53e34.rlib" "/opt/rustwide/target/debug/deps/liblibc-161c2bb878bda7ca.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-c5fb163ca02b3bae.rlib" "/opt/rustwide/target/debug/deps/libcoco-4621e61a9f2c389a.rlib" "/opt/rustwide/target/debug/deps/libscopeguard-8c5e35126c4f0d25.rlib" "/opt/rustwide/target/debug/deps/libeither-65df164b10d2de54.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-12ce12f1efc08aa3.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-5d3cd1b3ddab72e4.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-f8222943dfd167e2.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-0cd00b2d3108cd48.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-485c05ba6ce1b438.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-63e6b1072426ba59.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-a421aff1d43911ee.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-3deef8ef4fe80dff.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-f65a176f0586269e.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-ad46d4080f4d7e57.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-da6c590582bf0885.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-837ca740df32db0a.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-db27c965e824589f.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-68a4f8466685ed76.rlib" "-Wl,-Bdynamic" "-lgurobi75" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /usr/bin/ld: cannot find -lgurobi75
[INFO] [stderr]           collect2: error: ld returned 1 exit status
[INFO] [stderr]           
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `tiptop`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "1db1a463e2c9215488b209b68852b5a0c123425718f311aebc8331ccbb4362b8"`
[INFO] running `"docker" "rm" "-f" "1db1a463e2c9215488b209b68852b5a0c123425718f311aebc8331ccbb4362b8"`
[INFO] [stdout] 1db1a463e2c9215488b209b68852b5a0c123425718f311aebc8331ccbb4362b8