[INFO] updating cached repository tanasinn/blog_os-tutorial
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tanasinn/blog_os-tutorial
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tanasinn/blog_os-tutorial" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/tanasinn/blog_os-tutorial"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/tanasinn/blog_os-tutorial'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tanasinn/blog_os-tutorial" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/tanasinn/blog_os-tutorial"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/tanasinn/blog_os-tutorial'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 98aaffa45f0986dae7ced10c2059bc4925c07942
[INFO] sha for GitHub repo tanasinn/blog_os-tutorial: 98aaffa45f0986dae7ced10c2059bc4925c07942
[INFO] validating manifest of tanasinn/blog_os-tutorial on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tanasinn/blog_os-tutorial on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tanasinn/blog_os-tutorial
[INFO] finished frobbing tanasinn/blog_os-tutorial
[INFO] frobbed toml for tanasinn/blog_os-tutorial written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/tanasinn/blog_os-tutorial/Cargo.toml
[INFO] started frobbing tanasinn/blog_os-tutorial
[INFO] finished frobbing tanasinn/blog_os-tutorial
[INFO] frobbed toml for tanasinn/blog_os-tutorial written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/tanasinn/blog_os-tutorial/Cargo.toml
[INFO] crate tanasinn/blog_os-tutorial has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing tanasinn/blog_os-tutorial against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-2/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/tanasinn/blog_os-tutorial:/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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"`
[INFO] [stdout] fe975db4d65dce2eb624b2059cba46cdf59f7f5001930fed04e60d300e0d7656
[INFO] running `"docker" "start" "-a" "fe975db4d65dce2eb624b2059cba46cdf59f7f5001930fed04e60d300e0d7656"`
[INFO] [stderr]    Compiling bit_field v0.9.0
[INFO] [stderr]    Compiling ux v0.1.2
[INFO] [stderr]    Compiling usize_conversions v0.2.0
[INFO] [stderr]    Compiling os_bootinfo v0.2.1
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling spin v0.4.9
[INFO] [stderr]    Compiling volatile v0.2.4
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling bootloader_precompiled v0.2.0
[INFO] [stderr]    Compiling x86_64 v0.2.14
[INFO] [stderr]    Compiling uart_16550 v0.1.0
[INFO] [stderr]    Compiling blog_os v0.1.0 (/opt/crater/workdir)
[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/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/test_panic-95b2f4f30936b003.test_panic.ax3yhsoh-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/test_panic-95b2f4f30936b003.test_panic.ax3yhsoh-cgu.1.rcgu.o" "-o" "/opt/crater/target/debug/deps/test_panic-95b2f4f30936b003" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libblog_os-04d34dd926430bf6.rlib" "/opt/crater/target/debug/deps/libvolatile-bc56455de3b12f37.rlib" "/opt/crater/target/debug/deps/libuart_16550-218fcacb1eff3d3c.rlib" "/opt/crater/target/debug/deps/libx86_64-3d43a5e5b62dd488.rlib" "/opt/crater/target/debug/deps/libux-f046ef8639a97fac.rlib" "/opt/crater/target/debug/deps/libusize_conversions-0c602e12466637a0.rlib" "/opt/crater/target/debug/deps/libbit_field-d60074bc29032aac.rlib" "/opt/crater/target/debug/deps/libbitflags-a2e3757c0b607ad2.rlib" "/opt/crater/target/debug/deps/liblazy_static-f500116759dfdb66.rlib" "/opt/crater/target/debug/deps/libspin-503f95e72c13b30e.rlib" "/opt/crater/target/debug/deps/libbootloader_precompiled-9b64a42df9d7cef3.rlib" "/opt/crater/target/debug/deps/libos_bootinfo-36a09524eb3c4506.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-57f280c1596673cd.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-16132b5b2ecf9ec1.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-37286a0a9c4289ff.rlib" "-Wl,-Bdynamic"
[INFO] [stderr]   = note: /opt/crater/target/debug/deps/test_panic-95b2f4f30936b003.test_panic.ax3yhsoh-cgu.1.rcgu.o: In function `_start':
[INFO] [stderr]           /opt/crater/workdir/src/bin/test-panic.rs:24: multiple definition of `_start'
[INFO] [stderr]           /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/Scrt1.o:(.text+0x0): first defined here
[INFO] [stderr]           /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
[INFO] [stderr]           (.text+0x12): undefined reference to `__libc_csu_fini'
[INFO] [stderr]           /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
[INFO] [stderr]           (.text+0x19): undefined reference to `__libc_csu_init'
[INFO] [stderr]           /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
[INFO] [stderr]           (.text+0x20): undefined reference to `main'
[INFO] [stderr]           /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
[INFO] [stderr]           (.text+0x26): undefined reference to `__libc_start_main'
[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 `blog_os`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/test_basic_boot-cda9a36d2482cc55.test_basic_boot.etytwe8z-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/test_basic_boot-cda9a36d2482cc55.test_basic_boot.etytwe8z-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/test_basic_boot-cda9a36d2482cc55.test_basic_boot.etytwe8z-cgu.2.rcgu.o" "-o" "/opt/crater/target/debug/deps/test_basic_boot-cda9a36d2482cc55" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libblog_os-04d34dd926430bf6.rlib" "/opt/crater/target/debug/deps/libvolatile-bc56455de3b12f37.rlib" "/opt/crater/target/debug/deps/libuart_16550-218fcacb1eff3d3c.rlib" "/opt/crater/target/debug/deps/libx86_64-3d43a5e5b62dd488.rlib" "/opt/crater/target/debug/deps/libux-f046ef8639a97fac.rlib" "/opt/crater/target/debug/deps/libusize_conversions-0c602e12466637a0.rlib" "/opt/crater/target/debug/deps/libbit_field-d60074bc29032aac.rlib" "/opt/crater/target/debug/deps/libbitflags-a2e3757c0b607ad2.rlib" "/opt/crater/target/debug/deps/liblazy_static-f500116759dfdb66.rlib" "/opt/crater/target/debug/deps/libspin-503f95e72c13b30e.rlib" "/opt/crater/target/debug/deps/libbootloader_precompiled-9b64a42df9d7cef3.rlib" "/opt/crater/target/debug/deps/libos_bootinfo-36a09524eb3c4506.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-57f280c1596673cd.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-16132b5b2ecf9ec1.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-37286a0a9c4289ff.rlib" "-Wl,-Bdynamic"
[INFO] [stderr]   = note: /opt/crater/target/debug/deps/test_basic_boot-cda9a36d2482cc55.test_basic_boot.etytwe8z-cgu.1.rcgu.o: In function `_start':
[INFO] [stderr]           /opt/crater/workdir/src/bin/test-basic-boot.rs:25: multiple definition of `_start'
[INFO] [stderr]           /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/Scrt1.o:(.text+0x0): first defined here
[INFO] [stderr]           /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
[INFO] [stderr]           (.text+0x12): undefined reference to `__libc_csu_fini'
[INFO] [stderr]           /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
[INFO] [stderr]           (.text+0x19): undefined reference to `__libc_csu_init'
[INFO] [stderr]           /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
[INFO] [stderr]           (.text+0x20): undefined reference to `main'
[INFO] [stderr]           /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
[INFO] [stderr]           (.text+0x26): undefined reference to `__libc_start_main'
[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 `blog_os`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/test_exception_double_fault_stack_overflow-95d4ccf6ea0ce6ef.test_exception_double_fault_stack_overflow.cq5lf8o8-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/test_exception_double_fault_stack_overflow-95d4ccf6ea0ce6ef.test_exception_double_fault_stack_overflow.cq5lf8o8-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/test_exception_double_fault_stack_overflow-95d4ccf6ea0ce6ef.test_exception_double_fault_stack_overflow.cq5lf8o8-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/test_exception_double_fault_stack_overflow-95d4ccf6ea0ce6ef.test_exception_double_fault_stack_overflow.cq5lf8o8-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/test_exception_double_fault_stack_overflow-95d4ccf6ea0ce6ef.test_exception_double_fault_stack_overflow.cq5lf8o8-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/test_exception_double_fault_stack_overflow-95d4ccf6ea0ce6ef.test_exception_double_fault_stack_overflow.cq5lf8o8-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/test_exception_double_fault_stack_overflow-95d4ccf6ea0ce6ef.test_exception_double_fault_stack_overflow.cq5lf8o8-cgu.6.rcgu.o" "-o" "/opt/crater/target/debug/deps/test_exception_double_fault_stack_overflow-95d4ccf6ea0ce6ef" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libblog_os-04d34dd926430bf6.rlib" "/opt/crater/target/debug/deps/libvolatile-bc56455de3b12f37.rlib" "/opt/crater/target/debug/deps/libuart_16550-218fcacb1eff3d3c.rlib" "/opt/crater/target/debug/deps/libx86_64-3d43a5e5b62dd488.rlib" "/opt/crater/target/debug/deps/libux-f046ef8639a97fac.rlib" "/opt/crater/target/debug/deps/libusize_conversions-0c602e12466637a0.rlib" "/opt/crater/target/debug/deps/libbit_field-d60074bc29032aac.rlib" "/opt/crater/target/debug/deps/libbitflags-a2e3757c0b607ad2.rlib" "/opt/crater/target/debug/deps/liblazy_static-f500116759dfdb66.rlib" "/opt/crater/target/debug/deps/libspin-503f95e72c13b30e.rlib" "/opt/crater/target/debug/deps/libbootloader_precompiled-9b64a42df9d7cef3.rlib" "/opt/crater/target/debug/deps/libos_bootinfo-36a09524eb3c4506.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-57f280c1596673cd.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-16132b5b2ecf9ec1.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-37286a0a9c4289ff.rlib" "-Wl,-Bdynamic"
[INFO] [stderr]   = note: /opt/crater/target/debug/deps/test_exception_double_fault_stack_overflow-95d4ccf6ea0ce6ef.test_exception_double_fault_stack_overflow.cq5lf8o8-cgu.2.rcgu.o: In function `_start':
[INFO] [stderr]           /opt/crater/workdir/src/bin/test-exception-double-fault-stack-overflow.rs:56: multiple definition of `_start'
[INFO] [stderr]           /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/Scrt1.o:(.text+0x0): first defined here
[INFO] [stderr]           /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
[INFO] [stderr]           (.text+0x12): undefined reference to `__libc_csu_fini'
[INFO] [stderr]           /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
[INFO] [stderr]           (.text+0x19): undefined reference to `__libc_csu_init'
[INFO] [stderr]           /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
[INFO] [stderr]           (.text+0x20): undefined reference to `main'
[INFO] [stderr]           /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
[INFO] [stderr]           (.text+0x26): undefined reference to `__libc_start_main'
[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 `blog_os`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/test_exception_breakpoint-efcf21b41b122bbf.test_exception_breakpoint.9mrgpqv9-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/test_exception_breakpoint-efcf21b41b122bbf.test_exception_breakpoint.9mrgpqv9-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/test_exception_breakpoint-efcf21b41b122bbf.test_exception_breakpoint.9mrgpqv9-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/test_exception_breakpoint-efcf21b41b122bbf.test_exception_breakpoint.9mrgpqv9-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/test_exception_breakpoint-efcf21b41b122bbf.test_exception_breakpoint.9mrgpqv9-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/test_exception_breakpoint-efcf21b41b122bbf.test_exception_breakpoint.9mrgpqv9-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/test_exception_breakpoint-efcf21b41b122bbf.test_exception_breakpoint.9mrgpqv9-cgu.6.rcgu.o" "-o" "/opt/crater/target/debug/deps/test_exception_breakpoint-efcf21b41b122bbf" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libblog_os-04d34dd926430bf6.rlib" "/opt/crater/target/debug/deps/libvolatile-bc56455de3b12f37.rlib" "/opt/crater/target/debug/deps/libuart_16550-218fcacb1eff3d3c.rlib" "/opt/crater/target/debug/deps/libx86_64-3d43a5e5b62dd488.rlib" "/opt/crater/target/debug/deps/libux-f046ef8639a97fac.rlib" "/opt/crater/target/debug/deps/libusize_conversions-0c602e12466637a0.rlib" "/opt/crater/target/debug/deps/libbit_field-d60074bc29032aac.rlib" "/opt/crater/target/debug/deps/libbitflags-a2e3757c0b607ad2.rlib" "/opt/crater/target/debug/deps/liblazy_static-f500116759dfdb66.rlib" "/opt/crater/target/debug/deps/libspin-503f95e72c13b30e.rlib" "/opt/crater/target/debug/deps/libbootloader_precompiled-9b64a42df9d7cef3.rlib" "/opt/crater/target/debug/deps/libos_bootinfo-36a09524eb3c4506.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-57f280c1596673cd.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-16132b5b2ecf9ec1.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-37286a0a9c4289ff.rlib" "-Wl,-Bdynamic"
[INFO] [stderr]   = note: /opt/crater/target/debug/deps/test_exception_breakpoint-efcf21b41b122bbf.test_exception_breakpoint.9mrgpqv9-cgu.6.rcgu.o: In function `_start':
[INFO] [stderr]           /opt/crater/workdir/src/bin/test-exception-breakpoint.rs:50: multiple definition of `_start'
[INFO] [stderr]           /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/Scrt1.o:(.text+0x0): first defined here
[INFO] [stderr]           /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
[INFO] [stderr]           (.text+0x12): undefined reference to `__libc_csu_fini'
[INFO] [stderr]           /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
[INFO] [stderr]           (.text+0x19): undefined reference to `__libc_csu_init'
[INFO] [stderr]           /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
[INFO] [stderr]           (.text+0x20): undefined reference to `main'
[INFO] [stderr]           /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
[INFO] [stderr]           (.text+0x26): undefined reference to `__libc_start_main'
[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 `blog_os`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/blog_os-c3f7dac271cc91b0.blog_os.cghk86j8-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/blog_os-c3f7dac271cc91b0.blog_os.cghk86j8-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/blog_os-c3f7dac271cc91b0.blog_os.cghk86j8-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/blog_os-c3f7dac271cc91b0.blog_os.cghk86j8-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/blog_os-c3f7dac271cc91b0.blog_os.cghk86j8-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/blog_os-c3f7dac271cc91b0.blog_os.cghk86j8-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/blog_os-c3f7dac271cc91b0.blog_os.cghk86j8-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/blog_os-c3f7dac271cc91b0.blog_os.cghk86j8-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/blog_os-c3f7dac271cc91b0.blog_os.cghk86j8-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/blog_os-c3f7dac271cc91b0.blog_os.cghk86j8-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/blog_os-c3f7dac271cc91b0" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libblog_os-04d34dd926430bf6.rlib" "/opt/crater/target/debug/deps/libvolatile-bc56455de3b12f37.rlib" "/opt/crater/target/debug/deps/libuart_16550-218fcacb1eff3d3c.rlib" "/opt/crater/target/debug/deps/libx86_64-3d43a5e5b62dd488.rlib" "/opt/crater/target/debug/deps/libux-f046ef8639a97fac.rlib" "/opt/crater/target/debug/deps/libusize_conversions-0c602e12466637a0.rlib" "/opt/crater/target/debug/deps/libbit_field-d60074bc29032aac.rlib" "/opt/crater/target/debug/deps/libbitflags-a2e3757c0b607ad2.rlib" "/opt/crater/target/debug/deps/liblazy_static-f500116759dfdb66.rlib" "/opt/crater/target/debug/deps/libspin-503f95e72c13b30e.rlib" "/opt/crater/target/debug/deps/libbootloader_precompiled-9b64a42df9d7cef3.rlib" "/opt/crater/target/debug/deps/libos_bootinfo-36a09524eb3c4506.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-57f280c1596673cd.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-16132b5b2ecf9ec1.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-37286a0a9c4289ff.rlib" "-Wl,-Bdynamic"
[INFO] [stderr]   = note: /opt/crater/target/debug/deps/blog_os-c3f7dac271cc91b0.blog_os.cghk86j8-cgu.9.rcgu.o: In function `_start':
[INFO] [stderr]           /opt/crater/workdir/src/main.rs:20: multiple definition of `_start'
[INFO] [stderr]           /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/Scrt1.o:(.text+0x0): first defined here
[INFO] [stderr]           /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
[INFO] [stderr]           (.text+0x12): undefined reference to `__libc_csu_fini'
[INFO] [stderr]           /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
[INFO] [stderr]           (.text+0x19): undefined reference to `__libc_csu_init'
[INFO] [stderr]           /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
[INFO] [stderr]           (.text+0x20): undefined reference to `main'
[INFO] [stderr]           /usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
[INFO] [stderr]           (.text+0x26): undefined reference to `__libc_start_main'
[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 `blog_os`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "fe975db4d65dce2eb624b2059cba46cdf59f7f5001930fed04e60d300e0d7656"`
[INFO] running `"docker" "rm" "-f" "fe975db4d65dce2eb624b2059cba46cdf59f7f5001930fed04e60d300e0d7656"`
[INFO] [stdout] fe975db4d65dce2eb624b2059cba46cdf59f7f5001930fed04e60d300e0d7656