[INFO] cloning repository ashfordneil/looker
[INFO] running `"git" "clone" "--bare" "git://github.com/ashfordneil/looker.git" "work/cache/sources/gh/ashfordneil/looker"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/ashfordneil/looker'...
[INFO] running `"git" "clone" "work/cache/sources/gh/ashfordneil/looker" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/ashfordneil/looker"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/ashfordneil/looker'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ashfordneil/looker" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/ashfordneil/looker"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/ashfordneil/looker'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0227cdebe3afbcfc1fe695f2e773e2ab0bac07fe
[INFO] sha for GitHub repo ashfordneil/looker: 0227cdebe3afbcfc1fe695f2e773e2ab0bac07fe
[INFO] validating manifest of ashfordneil/looker on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ashfordneil/looker on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ashfordneil/looker
[INFO] finished frobbing ashfordneil/looker
[INFO] frobbed toml for ashfordneil/looker written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/ashfordneil/looker/Cargo.toml
[INFO] started frobbing ashfordneil/looker
[INFO] finished frobbing ashfordneil/looker
[INFO] frobbed toml for ashfordneil/looker written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/ashfordneil/looker/Cargo.toml
[INFO] crate ashfordneil/looker already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing ashfordneil/looker against master#c8865d8e195813ade6b84434ac9f8850e7112d1a for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-0/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/ashfordneil/looker:/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "build" "--frozen"`
[INFO] [stdout] 42b517e57735ae85a96c21aa7ece70bc3b180d896def86149c6d7616bf0c2c82
[INFO] running `"docker" "start" "-a" "42b517e57735ae85a96c21aa7ece70bc3b180d896def86149c6d7616bf0c2c82"`
[INFO] [stderr]    Compiling syn v0.15.30
[INFO] [stderr]    Compiling futures v0.1.26
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]    Compiling bit-vec v0.5.1
[INFO] [stderr]    Compiling census v0.2.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling scoped-pool v1.0.0
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling inotify-sys v0.1.3
[INFO] [stderr]    Compiling filetime v0.2.4
[INFO] [stderr]    Compiling nix v0.11.0
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling termion v1.5.1
[INFO] [stderr]    Compiling fst v0.3.3
[INFO] [stderr]    Compiling snap v0.2.5
[INFO] [stderr]    Compiling murmurhash32 v0.2.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.6.1
[INFO] [stderr]    Compiling bitpacking v0.6.0
[INFO] [stderr]    Compiling itertools v0.8.0
[INFO] [stderr]    Compiling combine v3.8.1
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling inotify v0.6.1
[INFO] [stderr]    Compiling bit-set v0.5.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling fail v0.2.1
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling levenshtein_automata v0.1.1
[INFO] [stderr]    Compiling globset v0.4.2
[INFO] [stderr]    Compiling env_logger v0.6.1
[INFO] [stderr]    Compiling parking_lot v0.6.4
[INFO] [stderr]    Compiling mio-extras v2.0.5
[INFO] [stderr]    Compiling tempfile v3.0.7
[INFO] [stderr]    Compiling uuid v0.7.4
[INFO] [stderr]    Compiling backtrace v0.3.15
[INFO] [stderr]    Compiling atomicwrites v0.2.2
[INFO] [stderr]    Compiling crossbeam v0.5.0
[INFO] [stderr]    Compiling notify v4.0.10
[INFO] [stderr]    Compiling tantivy-fst v0.1.0
[INFO] [stderr]    Compiling ignore v0.4.6
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling rental-impl v0.5.2
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]    Compiling structopt-derive v0.2.15
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling structopt v0.2.15
[INFO] [stderr]    Compiling failure v0.1.5
[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/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/serde_derive-400a963130aa938f.serde_derive.k83vd77d-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/serde_derive-400a963130aa938f.serde_derive.k83vd77d-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/serde_derive-400a963130aa938f.serde_derive.k83vd77d-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/serde_derive-400a963130aa938f.serde_derive.k83vd77d-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/serde_derive-400a963130aa938f.serde_derive.k83vd77d-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/serde_derive-400a963130aa938f.serde_derive.k83vd77d-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/serde_derive-400a963130aa938f.serde_derive.k83vd77d-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/serde_derive-400a963130aa938f.serde_derive.k83vd77d-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/serde_derive-400a963130aa938f.serde_derive.k83vd77d-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/serde_derive-400a963130aa938f.serde_derive.k83vd77d-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/serde_derive-400a963130aa938f.serde_derive.k83vd77d-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/serde_derive-400a963130aa938f.serde_derive.k83vd77d-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/serde_derive-400a963130aa938f.serde_derive.k83vd77d-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/serde_derive-400a963130aa938f.serde_derive.k83vd77d-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/serde_derive-400a963130aa938f.serde_derive.k83vd77d-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/serde_derive-400a963130aa938f.serde_derive.k83vd77d-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/libserde_derive-400a963130aa938f.so" "/opt/crater/target/debug/deps/serde_derive-400a963130aa938f.2a2jz0jo5hexdkal.rcgu.o" "/opt/crater/target/debug/deps/serde_derive-400a963130aa938f.122e5o1q7qadoehu.rcgu.o" "-Wl,--gc-sections" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libsyn-3554519e15361ee3.rlib" "/opt/crater/target/debug/deps/libquote-7069ca3bb19c46a7.rlib" "/opt/crater/target/debug/deps/libproc_macro2-10142f33d25b8d04.rlib" "/opt/crater/target/debug/deps/libunicode_xid-f704cfa8affa39ba.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libproc_macro-476a8e9766ed79bd.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-5eb7072357e3f704.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-be57a0a20ef83edc.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-53ea5c4d1e8787c5.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-90a03fea645d1ca0.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-d0be8ec5eb12a622.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-c9bd1ed65ad5f9b5.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-232a620458cbc142.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-378c2daa95643520.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-b1ad0e3b0cafff9a.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-bd92551ef79ec0f7.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-6f92150ede6dcf89.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-5d5836de4a922af7.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-0bd990bd23dec0da.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-f5a50a9afbc6d167.rlib" "-Wl,-Bdynamic" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil" "-shared"
[INFO] [stderr]   = note: 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 `serde_derive`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: Could not compile `bitpacking`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name bitpacking /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/bitpacking-0.6.0/src/lib.rs --color never --crate-type lib --emit=dep-info,metadata,link -C debuginfo=2 -C metadata=b049027c1163837a -C extra-filename=-b049027c1163837a --out-dir /opt/crater/target/debug/deps -L dependency=/opt/crater/target/debug/deps --extern crunchy=/opt/crater/target/debug/deps/libcrunchy-2e3916861cf3530a.rlib --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "42b517e57735ae85a96c21aa7ece70bc3b180d896def86149c6d7616bf0c2c82"`
[INFO] running `"docker" "rm" "-f" "42b517e57735ae85a96c21aa7ece70bc3b180d896def86149c6d7616bf0c2c82"`
[INFO] [stdout] 42b517e57735ae85a96c21aa7ece70bc3b180d896def86149c6d7616bf0c2c82