[INFO] cloning repository https://github.com/bitcartel/rust-koans-solutions [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bitcartel/rust-koans-solutions" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbitcartel%2Frust-koans-solutions", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbitcartel%2Frust-koans-solutions'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] fa1cc79b191627ba13abd5c639ffff97f6c9e08a [INFO] testing bitcartel/rust-koans-solutions against beta-2022-04-10 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbitcartel%2Frust-koans-solutions" "/workspace/builds/worker-14/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/bitcartel/rust-koans-solutions on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/bitcartel/rust-koans-solutions [INFO] finished tweaking git repo https://github.com/bitcartel/rust-koans-solutions [INFO] tweaked toml for git repo https://github.com/bitcartel/rust-koans-solutions written to /workspace/builds/worker-14/source/Cargo.toml [INFO] crate git repo https://github.com/bitcartel/rust-koans-solutions already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 16b5591a80124b4a487003af0044b82c1875b60fe7625d33231d41238985b824 [INFO] running `Command { std: "docker" "start" "-a" "16b5591a80124b4a487003af0044b82c1875b60fe7625d33231d41238985b824", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "16b5591a80124b4a487003af0044b82c1875b60fe7625d33231d41238985b824", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "16b5591a80124b4a487003af0044b82c1875b60fe7625d33231d41238985b824", kill_on_drop: false }` [INFO] [stdout] 16b5591a80124b4a487003af0044b82c1875b60fe7625d33231d41238985b824 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] cd1f820337034130c217bf72b85e6d4cd2eca3f967f60281ffbd871479b5a287 [INFO] running `Command { std: "docker" "start" "-a" "cd1f820337034130c217bf72b85e6d4cd2eca3f967f60281ffbd871479b5a287", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling koans v0.2.2 (/opt/rustwide/workdir) [INFO] [stderr] error: failed to run custom build command for `koans v0.2.2 (/opt/rustwide/workdir)` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/build/koans-976bdf1f7f018220/build-script-build` (exit status: 101) [INFO] [stderr] --- stderr [INFO] [stderr] thread 'main' panicked at 'Read-only file system (os error 30)', build.rs:13:22 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x560f44b41c2d - std::backtrace_rs::backtrace::libunwind::trace::ha359b7f0090e2792 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5 [INFO] [stderr] 1: 0x560f44b41c2d - std::backtrace_rs::backtrace::trace_unsynchronized::h0584631f25c1d70e [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x560f44b41c2d - std::sys_common::backtrace::_print_fmt::hdadffd97d279ff14 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/sys_common/backtrace.rs:66:5 [INFO] [stderr] 3: 0x560f44b41c2d - ::fmt::h26f189e611080a74 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/sys_common/backtrace.rs:45:22 [INFO] [stderr] 4: 0x560f44b5bcec - core::fmt::write::hfb5d11dfe037e8b7 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/core/src/fmt/mod.rs:1194:17 [INFO] [stderr] 5: 0x560f44b3ff81 - std::io::Write::write_fmt::ha30651f608022a46 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/io/mod.rs:1655:15 [INFO] [stderr] 6: 0x560f44b433d5 - std::sys_common::backtrace::_print::h7a0e44402913ba60 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/sys_common/backtrace.rs:48:5 [INFO] [stderr] 7: 0x560f44b433d5 - std::sys_common::backtrace::print::h9767dc455a84e728 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/sys_common/backtrace.rs:35:9 [INFO] [stderr] 8: 0x560f44b433d5 - std::panicking::default_hook::{{closure}}::h60afd6c8b12988ad [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:295:22 [INFO] [stderr] 9: 0x560f44b43089 - std::panicking::default_hook::ha7b9bac6813f9d21 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:314:9 [INFO] [stderr] 10: 0x560f44b43922 - std::panicking::rust_panic_with_hook::h7b117a162a6f8664 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:698:17 [INFO] [stderr] 11: 0x560f44b43807 - std::panicking::begin_panic_handler::{{closure}}::h346750923c608600 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:588:13 [INFO] [stderr] 12: 0x560f44b420e4 - std::sys_common::backtrace::__rust_end_short_backtrace::h768c56c6a0c055c0 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/sys_common/backtrace.rs:138:18 [INFO] [stderr] 13: 0x560f44b43539 - rust_begin_unwind [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:584:5 [INFO] [stderr] 14: 0x560f44b29343 - core::panicking::panic_fmt::h5c41cb2fa118fdbc [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/core/src/panicking.rs:143:14 [INFO] [stderr] 15: 0x560f44b2af23 - core::panicking::panic_display::ha6d83ebc9928185d [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/core/src/panicking.rs:72:5 [INFO] [stderr] 16: 0x560f44b2c5db - build_script_build::main::h7f6f765d74632fbc [INFO] [stderr] at /opt/rustwide/workdir/build.rs:13:22 [INFO] [stderr] 17: 0x560f44b2bf5b - core::ops::function::FnOnce::call_once::h1cba74ea2e681a8e [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/core/src/ops/function.rs:227:5 [INFO] [stderr] 18: 0x560f44b2bece - std::sys_common::backtrace::__rust_begin_short_backtrace::hcdb13da2812573eb [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/sys_common/backtrace.rs:122:18 [INFO] [stderr] 19: 0x560f44b2ad61 - std::rt::lang_start::{{closure}}::had3951d28eb79626 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/rt.rs:145:18 [INFO] [stderr] 20: 0x560f44b3d93e - core::ops::function::impls:: for &F>::call_once::hae31cd38f966dcbc [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/core/src/ops/function.rs:259:13 [INFO] [stderr] 21: 0x560f44b3d93e - std::panicking::try::do_call::h4a4c12a32b804624 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:492:40 [INFO] [stderr] 22: 0x560f44b3d93e - std::panicking::try::h87f80f5db1929b60 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:456:19 [INFO] [stderr] 23: 0x560f44b3d93e - std::panic::catch_unwind::hbc53afd5a2bdc195 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panic.rs:137:14 [INFO] [stderr] 24: 0x560f44b3d93e - std::rt::lang_start_internal::{{closure}}::h2e62ddd08385fac8 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/rt.rs:128:48 [INFO] [stderr] 25: 0x560f44b3d93e - std::panicking::try::do_call::h04b85b79b362213e [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:492:40 [INFO] [stderr] 26: 0x560f44b3d93e - std::panicking::try::h428fba6a4941d8ed [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:456:19 [INFO] [stderr] 27: 0x560f44b3d93e - std::panic::catch_unwind::hd73c90258412492e [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panic.rs:137:14 [INFO] [stderr] 28: 0x560f44b3d93e - std::rt::lang_start_internal::h26255896a96668b5 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/rt.rs:128:20 [INFO] [stderr] 29: 0x560f44b2ad30 - std::rt::lang_start::h07db6c850d92e325 [INFO] [stderr] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/rt.rs:144:17 [INFO] [stderr] 30: 0x560f44b2c67c - main [INFO] [stderr] 31: 0x7fd5223860b3 - __libc_start_main [INFO] [stderr] 32: 0x560f44b2953e - _start [INFO] [stderr] 33: 0x0 - [INFO] running `Command { std: "docker" "inspect" "cd1f820337034130c217bf72b85e6d4cd2eca3f967f60281ffbd871479b5a287", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cd1f820337034130c217bf72b85e6d4cd2eca3f967f60281ffbd871479b5a287", kill_on_drop: false }` [INFO] [stdout] cd1f820337034130c217bf72b85e6d4cd2eca3f967f60281ffbd871479b5a287