[INFO] crate hotspot 0.6.0 is already in cache
[INFO] extracting crate hotspot 0.6.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/hotspot/0.6.0
[INFO] extracting crate hotspot 0.6.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/hotspot/0.6.0
[INFO] validating manifest of hotspot-0.6.0 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 hotspot-0.6.0 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 hotspot-0.6.0
[INFO] finished frobbing hotspot-0.6.0
[INFO] frobbed toml for hotspot-0.6.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/hotspot/0.6.0/Cargo.toml
[INFO] started frobbing hotspot-0.6.0
[INFO] finished frobbing hotspot-0.6.0
[INFO] frobbed toml for hotspot-0.6.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/hotspot/0.6.0/Cargo.toml
[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 hotspot-0.6.0 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/hotspot/0.6.0:/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] 00fc5908d52e66953513a29626097e95d6608c0bd11aa230119148ce07690b8d
[INFO] running `"docker" "start" "-a" "00fc5908d52e66953513a29626097e95d6608c0bd11aa230119148ce07690b8d"`
[INFO] [stderr]    Compiling hotspot v0.6.0 (/opt/crater/workdir)
[INFO] [stderr]    Compiling matrix v0.21.12
[INFO] [stderr] error: failed to run custom build command for `hotspot v0.6.0 (/opt/crater/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/hotspot-3dc27261f2abf115/build-script-build` (exit code: 101)
[INFO] [stderr] --- stdout
[INFO] [stderr] make -C /opt/crater/workdir/build/source -j8 EXTRAFLAGS='-fPIC -O3'
[INFO] [stderr] make[1]: Entering directory '/opt/crater/workdir/build/source'
[INFO] [stderr] gcc -O3 -fPIC -O3   -DVERBOSE=1 -DMATHACCEL=0 -DDEBUG3D=0 -DSUPERLU=0 -g -c hotspot.c
[INFO] [stderr] gcc -O3 -fPIC -O3   -DVERBOSE=1 -DMATHACCEL=0 -DDEBUG3D=0 -DSUPERLU=0 -g -c temperature.c
[INFO] [stderr] gcc -O3 -fPIC -O3   -DVERBOSE=1 -DMATHACCEL=0 -DDEBUG3D=0 -DSUPERLU=0 -g -c RCutil.c
[INFO] [stderr] gcc -O3 -fPIC -O3   -DVERBOSE=1 -DMATHACCEL=0 -DDEBUG3D=0 -DSUPERLU=0 -g -c package.c
[INFO] [stderr] gcc -O3 -fPIC -O3   -DVERBOSE=1 -DMATHACCEL=0 -DDEBUG3D=0 -DSUPERLU=0 -g -c temperature_block.c
[INFO] [stderr] gcc -O3 -fPIC -O3   -DVERBOSE=1 -DMATHACCEL=0 -DDEBUG3D=0 -DSUPERLU=0 -g -c temperature_grid.c
[INFO] [stderr] gcc -O3 -fPIC -O3   -DVERBOSE=1 -DMATHACCEL=0 -DDEBUG3D=0 -DSUPERLU=0 -g -c flp.c
[INFO] [stderr] gcc -O3 -fPIC -O3   -DVERBOSE=1 -DMATHACCEL=0 -DDEBUG3D=0 -DSUPERLU=0 -g -c flp_desc.c
[INFO] [stderr] Makefile:203: recipe for target 'package.o' failed
[INFO] [stderr] Makefile:203: recipe for target 'flp_desc.o' failed
[INFO] [stderr] Makefile:203: recipe for target 'RCutil.o' failed
[INFO] [stderr] Makefile:203: recipe for target 'temperature_block.o' failed
[INFO] [stderr] Makefile:203: recipe for target 'temperature.o' failed
[INFO] [stderr] Makefile:203: recipe for target 'hotspot.o' failed
[INFO] [stderr] Makefile:203: recipe for target 'flp.o' failed
[INFO] [stderr] Makefile:203: recipe for target 'temperature_grid.o' failed
[INFO] [stderr] make[1]: Leaving directory '/opt/crater/workdir/build/source'
[INFO] [stderr] Makefile:13: recipe for target '/opt/crater/target/debug/build/hotspot-744753ec4d0003fd/out/libhotspot.a' failed
[INFO] [stderr] 
[INFO] [stderr] --- stderr
[INFO] [stderr] Assembler messages:
[INFO] [stderr] Fatal error: can't create package.o: Read-only file system
[INFO] [stderr] make[1]: *** [package.o] Error 1
[INFO] [stderr] make[1]: *** Waiting for unfinished jobs....
[INFO] [stderr] Assembler messages:
[INFO] [stderr] Fatal error: can't create flp_desc.o: Read-only file system
[INFO] [stderr] make[1]: *** [flp_desc.o] Error 1
[INFO] [stderr] Assembler messages:
[INFO] [stderr] Fatal error: can't create RCutil.o: Read-only file system
[INFO] [stderr] make[1]: *** [RCutil.o] Error 1
[INFO] [stderr] Assembler messages:
[INFO] [stderr] Fatal error: can't create temperature_block.o: Read-only file system
[INFO] [stderr] make[1]: *** [temperature_block.o] Error 1
[INFO] [stderr] Assembler messages:
[INFO] [stderr] Fatal error: can't create temperature.o: Read-only file system
[INFO] [stderr] make[1]: *** [temperature.o] Error 1
[INFO] [stderr] Assembler messages:
[INFO] [stderr] Fatal error: can't create hotspot.o: Read-only file system
[INFO] [stderr] make[1]: *** [hotspot.o] Error 1
[INFO] [stderr] Assembler messages:
[INFO] [stderr] Fatal error: can't create flp.o: Read-only file system
[INFO] [stderr] make[1]: *** [flp.o] Error 1
[INFO] [stderr] Assembler messages:
[INFO] [stderr] Fatal error: can't create temperature_grid.o: Read-only file system
[INFO] [stderr] make[1]: *** [temperature_grid.o] Error 1
[INFO] [stderr] make: *** [/opt/crater/target/debug/build/hotspot-744753ec4d0003fd/out/libhotspot.a] Error 2
[INFO] [stderr] thread 'main' panicked at 'assertion failed: cmd!("make").current_dir(&build).stdout(process::Stdio::inherit()).stderr(process::Stdio::inherit()).status().unwrap().success()', build.rs:24:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x561043025ebb - backtrace::backtrace::libunwind::trace::hfe5db90796807973
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x561043025ebb - backtrace::backtrace::trace_unsynchronized::h34b865a835594335
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x561043025ebb - std::sys_common::backtrace::_print::h527254ae44989167
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x561043025ebb - std::sys_common::backtrace::print::he85dd5ddddf46503
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x561043025ebb - std::panicking::default_hook::{{closure}}::h847a2eb38b396f14
[INFO] [stderr]                                at src/libstd/panicking.rs:200
[INFO] [stderr]    5:     0x561043025b97 - std::panicking::default_hook::h2ca0f9a30a0e206b
[INFO] [stderr]                                at src/libstd/panicking.rs:214
[INFO] [stderr]    6:     0x561043026580 - std::panicking::rust_panic_with_hook::hffcefc09751839d1
[INFO] [stderr]                                at src/libstd/panicking.rs:477
[INFO] [stderr]    7:     0x561043019d84 - std::panicking::begin_panic::h92e828c94f20c924
[INFO] [stderr]                                at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/panicking.rs:411
[INFO] [stderr]    8:     0x561043015330 - build_script_build::main::h8494f99571f44aaa
[INFO] [stderr]                                at /opt/crater/workdir/build.rs:24
[INFO] [stderr]    9:     0x5610430148e0 - std::rt::lang_start::{{closure}}::h0a89310c74b91167
[INFO] [stderr]                                at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/rt.rs:64
[INFO] [stderr]   10:     0x561043025fd3 - std::rt::lang_start_internal::{{closure}}::h447d8812e3ee306d
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   11:     0x561043025fd3 - std::panicking::try::do_call::h4a61cb372364c745
[INFO] [stderr]                                at src/libstd/panicking.rs:296
[INFO] [stderr]   12:     0x56104302bfaa - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:82
[INFO] [stderr]   13:     0x561043026a8d - std::panicking::try::hdf71f938885bca42
[INFO] [stderr]                                at src/libstd/panicking.rs:275
[INFO] [stderr]   14:     0x561043026a8d - std::panic::catch_unwind::h7e85dbf162b1611a
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   15:     0x561043026a8d - std::rt::lang_start_internal::h1e06cc26b9fc25ea
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   16:     0x5610430148b9 - std::rt::lang_start::h246d77947cd47dd1
[INFO] [stderr]                                at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/rt.rs:64
[INFO] [stderr]   17:     0x56104301559a - main
[INFO] [stderr]   18:     0x7ff943db92e1 - __libc_start_main
[INFO] [stderr]   19:     0x561043011bda - _start
[INFO] [stderr]   20:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "00fc5908d52e66953513a29626097e95d6608c0bd11aa230119148ce07690b8d"`
[INFO] running `"docker" "rm" "-f" "00fc5908d52e66953513a29626097e95d6608c0bd11aa230119148ce07690b8d"`
[INFO] [stdout] 00fc5908d52e66953513a29626097e95d6608c0bd11aa230119148ce07690b8d