[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 1.44.0 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkabeone%2Fmy_os" "/workspace/builds/worker-3/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'... [INFO] [stderr] done. [INFO] [stderr] Checking out files: 1% (23/1612) Checking out files: 2% (33/1612) Checking out files: 3% (49/1612) Checking out files: 3% (59/1612) 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: 16% (270/1612) Checking out files: 17% (275/1612) Checking out files: 18% (291/1612) Checking out files: 18% (302/1612) 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 1.44.0 [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "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-3/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" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=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" "+1.44.0" "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] 1691616b95bd44aefe260dbbba1beba9418089d1fa08d83b83e2e6b71ec4f242 [INFO] running `"docker" "start" "-a" "1691616b95bd44aefe260dbbba1beba9418089d1fa08d83b83e2e6b71ec4f242"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling x86_64 v0.9.6 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling bootloader v0.8.9 [INFO] [stderr] Compiling bit_field v0.9.0 [INFO] [stderr] Compiling cpuio v0.2.0 [INFO] [stderr] Compiling volatile v0.2.6 [INFO] [stderr] Compiling pc-keyboard v0.5.0 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cpuio-0.2.0/src/lib.rs:4:1 [INFO] [stderr] | [INFO] [stderr] 4 | #![feature(asm, const_fn, no_std)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0554`. [INFO] [stderr] error: could not compile `cpuio`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "1691616b95bd44aefe260dbbba1beba9418089d1fa08d83b83e2e6b71ec4f242"` [INFO] running `"docker" "rm" "-f" "1691616b95bd44aefe260dbbba1beba9418089d1fa08d83b83e2e6b71ec4f242"` [INFO] [stdout] 1691616b95bd44aefe260dbbba1beba9418089d1fa08d83b83e2e6b71ec4f242