[INFO] cloning repository https://github.com/j3h/rust-koans [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/j3h/rust-koans" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj3h%2Frust-koans", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj3h%2Frust-koans'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] cc29866cd11b1e11dd61018baddd0f75fe6c3310 [INFO] testing j3h/rust-koans against 1.60.0 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj3h%2Frust-koans" "/workspace/builds/worker-3/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/j3h/rust-koans on toolchain 1.60.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/j3h/rust-koans [INFO] finished tweaking git repo https://github.com/j3h/rust-koans [INFO] tweaked toml for git repo https://github.com/j3h/rust-koans written to /workspace/builds/worker-3/source/Cargo.toml [INFO] crate git repo https://github.com/j3h/rust-koans already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "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" "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" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e422db8152e78d54c1e13cdff7709a4995f6e673463e012cdfdc5471d2583e42 [INFO] running `Command { std: "docker" "start" "-a" "e422db8152e78d54c1e13cdff7709a4995f6e673463e012cdfdc5471d2583e42", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e422db8152e78d54c1e13cdff7709a4995f6e673463e012cdfdc5471d2583e42", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e422db8152e78d54c1e13cdff7709a4995f6e673463e012cdfdc5471d2583e42", kill_on_drop: false }` [INFO] [stdout] e422db8152e78d54c1e13cdff7709a4995f6e673463e012cdfdc5471d2583e42 [INFO] running `Command { std: "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" "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" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f567e57b9113c0dbb9aaf6616c7118fc9ec0357172e8e3c8b49f413c42387526 [INFO] running `Command { std: "docker" "start" "-a" "f567e57b9113c0dbb9aaf6616c7118fc9ec0357172e8e3c8b49f413c42387526", 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-1ebd09bd735e1939/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: 0x55de50d6316d - std::backtrace_rs::backtrace::libunwind::trace::hee598835bc88d35b [INFO] [stderr] at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5 [INFO] [stderr] 1: 0x55de50d6316d - std::backtrace_rs::backtrace::trace_unsynchronized::h9cdc730ba5cf5d72 [INFO] [stderr] at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x55de50d6316d - std::sys_common::backtrace::_print_fmt::h75aeaf7ed30e43fa [INFO] [stderr] at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/sys_common/backtrace.rs:66:5 [INFO] [stderr] 3: 0x55de50d6316d - ::fmt::h606862f787600875 [INFO] [stderr] at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/sys_common/backtrace.rs:45:22 [INFO] [stderr] 4: 0x55de50d7f2ec - core::fmt::write::he803f0f418caf762 [INFO] [stderr] at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/core/src/fmt/mod.rs:1190:17 [INFO] [stderr] 5: 0x55de50d601a8 - std::io::Write::write_fmt::h70bc45872f37e7bb [INFO] [stderr] at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/io/mod.rs:1657:15 [INFO] [stderr] 6: 0x55de50d64c07 - std::sys_common::backtrace::_print::h64d038cf8ac3e13e [INFO] [stderr] at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/sys_common/backtrace.rs:48:5 [INFO] [stderr] 7: 0x55de50d64c07 - std::sys_common::backtrace::print::h359300b4a7fccf65 [INFO] [stderr] at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/sys_common/backtrace.rs:35:9 [INFO] [stderr] 8: 0x55de50d64c07 - std::panicking::default_hook::{{closure}}::hf51be35e2f510149 [INFO] [stderr] at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:295:22 [INFO] [stderr] 9: 0x55de50d648d0 - std::panicking::default_hook::h03ca0f22e1d2d25e [INFO] [stderr] at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:314:9 [INFO] [stderr] 10: 0x55de50d65359 - std::panicking::rust_panic_with_hook::h3b7380e99b825b63 [INFO] [stderr] at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:698:17 [INFO] [stderr] 11: 0x55de50d65047 - std::panicking::begin_panic_handler::{{closure}}::h8e849d0710154ce0 [INFO] [stderr] at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:588:13 [INFO] [stderr] 12: 0x55de50d63634 - std::sys_common::backtrace::__rust_end_short_backtrace::hedcdaddbd4c46cc5 [INFO] [stderr] at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/sys_common/backtrace.rs:138:18 [INFO] [stderr] 13: 0x55de50d64d59 - rust_begin_unwind [INFO] [stderr] at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:584:5 [INFO] [stderr] 14: 0x55de50d4c303 - core::panicking::panic_fmt::he1bbc7336d49a357 [INFO] [stderr] at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/core/src/panicking.rs:143:14 [INFO] [stderr] 15: 0x55de50d4e293 - core::panicking::panic_display::h00e4f8f50de99d67 [INFO] [stderr] at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/core/src/panicking.rs:73:5 [INFO] [stderr] 16: 0x55de50d4fa0a - build_script_build::main::h4d8f140b6467c604 [INFO] [stderr] at /opt/rustwide/workdir/build.rs:13:22 [INFO] [stderr] 17: 0x55de50d4f3db - core::ops::function::FnOnce::call_once::h4eb3341cedbb4865 [INFO] [stderr] at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/core/src/ops/function.rs:227:5 [INFO] [stderr] 18: 0x55de50d4f6ee - std::sys_common::backtrace::__rust_begin_short_backtrace::ha14667f80ad6be0a [INFO] [stderr] at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/sys_common/backtrace.rs:122:18 [INFO] [stderr] 19: 0x55de50d4e301 - std::rt::lang_start::{{closure}}::ha079942d8c3cec5f [INFO] [stderr] at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/rt.rs:145:18 [INFO] [stderr] 20: 0x55de50d62851 - core::ops::function::impls:: for &F>::call_once::hb7014f43484a8b4e [INFO] [stderr] at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/core/src/ops/function.rs:259:13 [INFO] [stderr] 21: 0x55de50d62851 - std::panicking::try::do_call::h7bc9dc436daeb8c7 [INFO] [stderr] at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:492:40 [INFO] [stderr] 22: 0x55de50d62851 - std::panicking::try::h653d68a27ff5f175 [INFO] [stderr] at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:456:19 [INFO] [stderr] 23: 0x55de50d62851 - std::panic::catch_unwind::h9d739f9f59895e68 [INFO] [stderr] at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panic.rs:137:14 [INFO] [stderr] 24: 0x55de50d62851 - std::rt::lang_start_internal::{{closure}}::hf006f2bc7ce22bbe [INFO] [stderr] at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/rt.rs:128:48 [INFO] [stderr] 25: 0x55de50d62851 - std::panicking::try::do_call::hfb39d6df61a2e69f [INFO] [stderr] at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:492:40 [INFO] [stderr] 26: 0x55de50d62851 - std::panicking::try::h13e2d225134958ac [INFO] [stderr] at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:456:19 [INFO] [stderr] 27: 0x55de50d62851 - std::panic::catch_unwind::h3bd49b5a5dfb1a50 [INFO] [stderr] at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panic.rs:137:14 [INFO] [stderr] 28: 0x55de50d62851 - std::rt::lang_start_internal::h2ba92edce36c035e [INFO] [stderr] at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/rt.rs:128:20 [INFO] [stderr] 29: 0x55de50d4e2d0 - std::rt::lang_start::ha547aa512baa5a29 [INFO] [stderr] at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/rt.rs:144:17 [INFO] [stderr] 30: 0x55de50d4fb9c - main [INFO] [stderr] 31: 0x7fa2884b20b3 - __libc_start_main [INFO] [stderr] 32: 0x55de50d4ca8e - _start [INFO] [stderr] 33: 0x0 - [INFO] running `Command { std: "docker" "inspect" "f567e57b9113c0dbb9aaf6616c7118fc9ec0357172e8e3c8b49f413c42387526", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f567e57b9113c0dbb9aaf6616c7118fc9ec0357172e8e3c8b49f413c42387526", kill_on_drop: false }` [INFO] [stdout] f567e57b9113c0dbb9aaf6616c7118fc9ec0357172e8e3c8b49f413c42387526