[INFO] cloning repository https://github.com/kabeone/my_os [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kabeone/my_os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkabeone%2Fmy_os"` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkabeone%2Fmy_os'... [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 48cec5f40ec0b8a625163f55313a7a8fcd8b21f2 [INFO] testing kabeone/my_os against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkabeone%2Fmy_os" "/workspace/builds/worker-2/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] [stderr] Checking out files: 1% (29/1612) Checking out files: 2% (33/1612) Checking out files: 2% (46/1612) Checking out files: 3% (49/1612) Checking out files: 4% (65/1612) Checking out files: 5% (81/1612) Checking out files: 6% (97/1612) Checking out files: 7% (113/1612) Checking out files: 8% (129/1612) Checking out files: 9% (146/1612) Checking out files: 10% (162/1612) Checking out files: 11% (178/1612) Checking out files: 12% (194/1612) Checking out files: 13% (210/1612) Checking out files: 14% (226/1612) Checking out files: 15% (242/1612) Checking out files: 16% (258/1612) Checking out files: 17% (275/1612) Checking out files: 18% (291/1612) Checking out files: 18% (294/1612) Checking out files: 19% (307/1612) Checking out files: 20% (323/1612) Checking out files: 21% (339/1612) Checking out files: 22% (355/1612) Checking out files: 23% (371/1612) Checking out files: 24% (387/1612) Checking out files: 25% (403/1612) Checking out files: 26% (420/1612) Checking out files: 27% (436/1612) Checking out files: 28% (452/1612) Checking out files: 29% (468/1612) Checking out files: 30% (484/1612) Checking out files: 31% (500/1612) Checking out files: 32% (516/1612) Checking out files: 33% (532/1612) Checking out files: 34% (549/1612) Checking out files: 35% (565/1612) Checking out files: 36% (581/1612) Checking out files: 37% (597/1612) Checking out files: 38% (613/1612) Checking out files: 39% (629/1612) Checking out files: 40% (645/1612) Checking out files: 41% (661/1612) Checking out files: 42% (678/1612) Checking out files: 43% (694/1612) Checking out files: 44% (710/1612) Checking out files: 45% (726/1612) Checking out files: 46% (742/1612) Checking out files: 47% (758/1612) Checking out files: 48% (774/1612) Checking out files: 49% (790/1612) Checking out files: 50% (806/1612) Checking out files: 51% (823/1612) Checking out files: 52% (839/1612) Checking out files: 53% (855/1612) Checking out files: 54% (871/1612) Checking out files: 55% (887/1612) Checking out files: 56% (903/1612) Checking out files: 57% (919/1612) Checking out files: 58% (935/1612) Checking out files: 59% (952/1612) Checking out files: 60% (968/1612) Checking out files: 61% (984/1612) Checking out files: 62% (1000/1612) Checking out files: 63% (1016/1612) Checking out files: 64% (1032/1612) Checking out files: 65% (1048/1612) Checking out files: 66% (1064/1612) Checking out files: 67% (1081/1612) Checking out files: 68% (1097/1612) Checking out files: 69% (1113/1612) Checking out files: 70% (1129/1612) Checking out files: 71% (1145/1612) Checking out files: 72% (1161/1612) Checking out files: 73% (1177/1612) Checking out files: 74% (1193/1612) Checking out files: 75% (1209/1612) Checking out files: 76% (1226/1612) Checking out files: 77% (1242/1612) Checking out files: 78% (1258/1612) Checking out files: 79% (1274/1612) Checking out files: 80% (1290/1612) Checking out files: 81% (1306/1612) Checking out files: 82% (1322/1612) Checking out files: 83% (1338/1612) Checking out files: 84% (1355/1612) Checking out files: 85% (1371/1612) Checking out files: 86% (1387/1612) Checking out files: 87% (1403/1612) Checking out files: 88% (1419/1612) Checking out files: 89% (1435/1612) Checking out files: 90% (1451/1612) Checking out files: 91% (1467/1612) Checking out files: 92% (1484/1612) Checking out files: 93% (1500/1612) Checking out files: 94% (1516/1612) Checking out files: 95% (1532/1612) Checking out files: 96% (1548/1612) Checking out files: 97% (1564/1612) Checking out files: 98% (1580/1612) Checking out files: 99% (1596/1612) Checking out files: 100% (1612/1612) Checking out files: 100% (1612/1612), done. [INFO] validating manifest of git repo https://github.com/kabeone/my_os on toolchain 28742a1146f10a4f09369baad027a464acb7a766 [INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/kabeone/my_os [INFO] finished tweaking git repo https://github.com/kabeone/my_os [INFO] tweaked toml for git repo https://github.com/kabeone/my_os written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/kabeone/my_os already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 6ecac5c480fd513ef35b67cea9a8aa1082d40f15b676e23a64630671b30ddbcc [INFO] running `"docker" "start" "-a" "6ecac5c480fd513ef35b67cea9a8aa1082d40f15b676e23a64630671b30ddbcc"` [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling x86_64 v0.9.6 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling bit_field v0.9.0 [INFO] [stderr] Compiling bootloader v0.8.9 [INFO] [stderr] Compiling spin v0.5.2 [INFO] [stderr] Compiling cpuio v0.2.0 [INFO] [stderr] Compiling pc-keyboard v0.5.0 [INFO] [stderr] Compiling volatile v0.2.6 [INFO] [stderr] Compiling pic8259_simple v0.1.1 [INFO] [stderr] Compiling lock_api v0.3.3 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling spinning_top v0.1.0 [INFO] [stderr] Compiling linked_list_allocator v0.8.1 [INFO] [stderr] Compiling uart_16550 v0.2.4 [INFO] [stderr] Compiling rust_os v0.1.0 (/opt/rustwide/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/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/rust_os-e1c1c36a6411d102.rust_os.72yb806j-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/rust_os-e1c1c36a6411d102.rust_os.72yb806j-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/rust_os-e1c1c36a6411d102.rust_os.72yb806j-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/rust_os-e1c1c36a6411d102.rust_os.72yb806j-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/rust_os-e1c1c36a6411d102.rust_os.72yb806j-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/rust_os-e1c1c36a6411d102.rust_os.72yb806j-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/rust_os-e1c1c36a6411d102.rust_os.72yb806j-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/rust_os-e1c1c36a6411d102.rust_os.72yb806j-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/rust_os-e1c1c36a6411d102.rust_os.72yb806j-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/rust_os-e1c1c36a6411d102.rust_os.72yb806j-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/rust_os-e1c1c36a6411d102.rust_os.72yb806j-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/rust_os-e1c1c36a6411d102.rust_os.72yb806j-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/rust_os-e1c1c36a6411d102.rust_os.72yb806j-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/rust_os-e1c1c36a6411d102.rust_os.72yb806j-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/rust_os-e1c1c36a6411d102.rust_os.72yb806j-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/rust_os-e1c1c36a6411d102.rust_os.72yb806j-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/rust_os-e1c1c36a6411d102" "/opt/rustwide/target/debug/deps/rust_os-e1c1c36a6411d102.2tc6leq3r1vrwtt5.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libos-d1a7ad9d3979eefd.rlib" "/opt/rustwide/target/debug/deps/liblinked_list_allocator-5b46634b20be570d.rlib" "/opt/rustwide/target/debug/deps/libspinning_top-30b08c57f6f0421a.rlib" "/opt/rustwide/target/debug/deps/liblock_api-4bd71503b6972356.rlib" "/opt/rustwide/target/debug/deps/libscopeguard-55dc4f468b0e60ef.rlib" "/opt/rustwide/target/debug/deps/libbootloader-53c782a3f6600543.rlib" "/opt/rustwide/target/debug/deps/libpc_keyboard-0ff3ed1de402fbea.rlib" "/opt/rustwide/target/debug/deps/libpic8259_simple-b0c36641067d4f15.rlib" "/opt/rustwide/target/debug/deps/libcpuio-d679d045f3f5d1c4.rlib" "/opt/rustwide/target/debug/deps/libx86_64-335174e4e8f9cdfb.rlib" "/opt/rustwide/target/debug/deps/libbit_field-8ac51ce003a1adbd.rlib" "/opt/rustwide/target/debug/deps/libbitflags-0c86159f485f5ff4.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-4c5ae24fb7390f75.rlib" "/opt/rustwide/target/debug/deps/libspin-ea2f960a0262cbef.rlib" "/opt/rustwide/target/debug/deps/libvolatile-286044c6d619dcf3.rlib" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-3aec7f88778e912a.rlib" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-b6806800b307d4b9.rlib" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-e49d7651b12f7563.rlib" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-e8266574e26adcc3.rlib" "-Wl,-Bdynamic" [INFO] [stderr] = note: /opt/rustwide/target/debug/deps/rust_os-e1c1c36a6411d102.rust_os.72yb806j-cgu.6.rcgu.o: In function `_start': [INFO] [stderr] /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/bootloader-0.8.9/src/lib.rs:35: multiple definition of `_start' [INFO] [stderr] /usr/lib/gcc/x86_64-linux-gnu/7/../../../x86_64-linux-gnu/Scrt1.o:(.text+0x0): first defined here [INFO] [stderr] /usr/lib/gcc/x86_64-linux-gnu/7/../../../x86_64-linux-gnu/Scrt1.o: In function `_start': [INFO] [stderr] (.text+0x12): undefined reference to `__libc_csu_fini' [INFO] [stderr] (.text+0x19): undefined reference to `__libc_csu_init' [INFO] [stderr] (.text+0x20): undefined reference to `main' [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 `rust_os`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "6ecac5c480fd513ef35b67cea9a8aa1082d40f15b676e23a64630671b30ddbcc"` [INFO] running `"docker" "rm" "-f" "6ecac5c480fd513ef35b67cea9a8aa1082d40f15b676e23a64630671b30ddbcc"` [INFO] [stdout] 6ecac5c480fd513ef35b67cea9a8aa1082d40f15b676e23a64630671b30ddbcc