[INFO] updating cached repository https://github.com/dylemma/Falldown.rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }` [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7c1a6b46fc6f7bd3f5353b4eefbcc32a8adc2f19 [INFO] testing dylemma/Falldown.rs against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdylemma%2FFalldown.rs" "/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/dylemma/Falldown.rs on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/dylemma/Falldown.rs [INFO] finished tweaking git repo https://github.com/dylemma/Falldown.rs [INFO] tweaked toml for git repo https://github.com/dylemma/Falldown.rs written to /workspace/builds/worker-3/source/Cargo.toml [INFO] crate git repo https://github.com/dylemma/Falldown.rs already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8b800d001beaf4d4ff33779a18636c6494867290b02d6213c90606338c56ed4d [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "8b800d001beaf4d4ff33779a18636c6494867290b02d6213c90606338c56ed4d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8b800d001beaf4d4ff33779a18636c6494867290b02d6213c90606338c56ed4d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8b800d001beaf4d4ff33779a18636c6494867290b02d6213c90606338c56ed4d", kill_on_drop: false }` [INFO] [stdout] 8b800d001beaf4d4ff33779a18636c6494867290b02d6213c90606338c56ed4d [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" "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@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 59fde2a0f71bac39dca4aa885f54ab34dd120e12fe72b0f34decab2db9291c2d [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "59fde2a0f71bac39dca4aa885f54ab34dd120e12fe72b0f34decab2db9291c2d", kill_on_drop: false }` [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling proc-macro2 v0.4.27 [INFO] [stderr] Compiling libc v0.2.48 [INFO] [stderr] Compiling cfg-if v0.1.6 [INFO] [stderr] Compiling serde v1.0.88 [INFO] [stderr] Compiling num-traits v0.2.6 [INFO] [stderr] Compiling lazy_static v1.2.0 [INFO] [stderr] Compiling cc v1.0.29 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling autocfg v0.1.2 [INFO] [stderr] Compiling byteorder v1.3.1 [INFO] [stderr] Compiling arrayvec v0.4.10 [INFO] [stderr] Compiling bitflags v1.0.4 [INFO] [stderr] Compiling void v1.0.2 [INFO] [stderr] Compiling memoffset v0.2.1 [INFO] [stderr] Compiling pkg-config v0.3.14 [INFO] [stderr] Compiling stable_deref_trait v1.1.1 [INFO] [stderr] Compiling rayon v1.0.3 [INFO] [stderr] Compiling rustc-demangle v0.1.13 [INFO] [stderr] Compiling xml-rs v0.8.0 [INFO] [stderr] Compiling num-complex v0.2.1 [INFO] [stderr] Compiling mint v0.5.1 [INFO] [stderr] Compiling typenum v1.10.0 [INFO] [stderr] Compiling linked-hash-map v0.5.1 [INFO] [stderr] Compiling num-bigint v0.2.2 [INFO] [stderr] Compiling nonzero_signed v1.0.3 [INFO] [stderr] Compiling libm v0.1.2 [INFO] [stderr] Compiling khronos_api v2.2.0 [INFO] [stderr] Compiling rawpointer v0.1.0 [INFO] [stderr] Compiling same-file v1.0.4 [INFO] [stderr] Compiling downcast-rs v1.0.3 [INFO] [stderr] Compiling adler32 v1.0.3 [INFO] [stderr] Compiling tuple_utils v0.2.0 [INFO] [stderr] Compiling futures v0.1.25 [INFO] [stderr] Compiling percent-encoding v1.0.1 [INFO] [stderr] Compiling unicode-xid v0.0.4 [INFO] [stderr] Compiling quote v0.3.15 [INFO] [stderr] Compiling hetseq v0.2.0 [INFO] [stderr] Compiling wavefront_obj v5.1.0 [INFO] [stderr] Compiling ansi_term v0.11.0 [INFO] [stderr] Compiling xi-unicode v0.1.0 [INFO] [stderr] Compiling vec_map v0.8.1 [INFO] [stderr] Compiling matches v0.1.8 [INFO] [stderr] Compiling fluent-locale v0.4.1 [INFO] [stderr] Compiling unicode-segmentation v1.2.1 [INFO] [stderr] Compiling slab v0.4.2 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling rand_jitter v0.1.3 [INFO] [stderr] Compiling crossbeam-utils v0.2.2 [INFO] [stderr] Compiling xml-rs v0.7.0 [INFO] [stderr] Compiling itertools v0.7.11 [INFO] [stderr] Compiling unreachable v1.0.0 [INFO] [stderr] Compiling proc-macro2 v0.3.8 [INFO] [stderr] Compiling crossbeam-utils v0.6.5 [INFO] [stderr] Compiling colored v1.7.0 [INFO] [stderr] Compiling owning_ref v0.4.0 [INFO] [stderr] Compiling owning_ref v0.3.3 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling backtrace v0.3.13 [INFO] [stderr] Compiling bincode v1.1.2 [INFO] [stderr] Compiling matrixmultiply v0.2.2 [INFO] [stderr] Compiling cmake v0.1.35 [INFO] [stderr] Compiling gif v0.10.1 [INFO] [stderr] Compiling walkdir v2.2.7 [INFO] [stderr] Compiling inflate v0.4.5 [INFO] [stderr] Compiling synom v0.11.3 [INFO] [stderr] Compiling textwrap v0.10.0 [INFO] [stderr] Compiling petgraph v0.4.13 [INFO] [stderr] Compiling x11-dl v2.18.3 [INFO] [stderr] Compiling alsa-sys v0.1.2 [INFO] [stderr] Compiling servo-fontconfig-sys v4.0.7 [INFO] [stderr] Compiling annotate-snippets v0.1.0 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling lock_api v0.1.5 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling quote v0.5.2 [INFO] [stderr] Compiling syn v0.11.11 [INFO] [stderr] Compiling backtrace-sys v0.1.28 [INFO] [stderr] Compiling libloading v0.5.0 [INFO] [stderr] Compiling minimp3-sys v0.3.1 [INFO] [stderr] Compiling servo-freetype-sys v4.0.5 [INFO] [stderr] Compiling expat-sys v2.1.6 [INFO] [stderr] Compiling fluent-syntax v0.1.1 [INFO] [stderr] Compiling intl_pluralrules v1.0.2 [INFO] [stderr] Compiling syn v0.13.11 [INFO] [stderr] Compiling crossbeam-epoch v0.3.1 [INFO] [stderr] Compiling crossbeam-epoch v0.7.1 [INFO] [stderr] Compiling crossbeam-epoch v0.5.2 [INFO] [stderr] Compiling crossbeam-epoch v0.6.1 [INFO] [stderr] Compiling rand_pcg v0.1.1 [INFO] [stderr] Compiling parking_lot_core v0.3.1 [INFO] [stderr] Compiling err-derive v0.1.5 [INFO] [stderr] Compiling parking_lot_core v0.4.0 [INFO] [stderr] Compiling rustc_version_runtime v0.1.5 [INFO] [stderr] Compiling stb_truetype v0.2.6 [INFO] [stderr] Compiling rustc-hash v1.0.1 [INFO] [stderr] Compiling fxhash v0.2.1 [INFO] [stderr] Compiling deflate v0.7.19 [INFO] [stderr] Compiling base64 v0.10.1 [INFO] [stderr] Compiling ogg v0.7.0 [INFO] [stderr] Compiling hashbrown v0.1.8 [INFO] [stderr] Compiling num_cpus v1.10.0 [INFO] [stderr] Compiling rand_os v0.1.2 [INFO] [stderr] Compiling rand v0.4.6 [INFO] [stderr] Compiling rand v0.5.6 [INFO] [stderr] Compiling nix v0.12.0 [INFO] [stderr] Compiling memmap v0.7.0 [INFO] [stderr] Compiling shared_library v0.1.9 [INFO] [stderr] Compiling time v0.1.42 [INFO] [stderr] Compiling slice-deque v0.1.16 [INFO] [stderr] Compiling atty v0.2.11 [INFO] [stderr] Compiling memmap v0.6.2 [INFO] [stderr] Compiling dirs v1.0.4 [INFO] [stderr] Compiling quote v0.6.11 [INFO] [stderr] Compiling xcb v0.8.2 [INFO] [stderr] Compiling generic-array v0.12.0 [INFO] [stderr] Compiling crossbeam-deque v0.5.2 [INFO] [stderr] Compiling crossbeam-deque v0.2.0 [INFO] [stderr] Compiling crossbeam-deque v0.7.1 [INFO] [stderr] Compiling approx v0.3.1 [INFO] [stderr] Compiling num-integer v0.1.39 [INFO] [stderr] Compiling ordered-float v1.0.1 [INFO] [stderr] Compiling line_drawing v0.7.0 [INFO] [stderr] Compiling num-traits v0.1.43 [INFO] [stderr] Compiling osmesa-sys v0.1.2 [INFO] [stderr] error: failed to run custom build command for `rustc_version_runtime v0.1.5` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/build/rustc_version_runtime-ed7b1f1a5b119776/build-script-build` (exit code: 101) [INFO] [stderr] --- stderr [INFO] [stderr] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc_version_runtime-0.1.5/build.rs:27:48 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x55e0dddabdd5 - backtrace::backtrace::libunwind::trace::hea89dfbbfe67f40d [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86 [INFO] [stderr] 1: 0x55e0dddabdd5 - backtrace::backtrace::trace_unsynchronized::h0513dd713d7644d4 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x55e0dddabdd5 - std::sys_common::backtrace::_print_fmt::h040abae64e4a24a9 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stderr] 3: 0x55e0dddabdd5 - ::fmt::hb4bdb37c3c335733 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] 4: 0x55e0dddcdd0c - core::fmt::write::h540ac4a6a1232abc [INFO] [stderr] at src/libcore/fmt/mod.rs:1076 [INFO] [stderr] 5: 0x55e0ddda98c2 - std::io::Write::write_fmt::h5ffa1b5a7703af47 [INFO] [stderr] at src/libstd/io/mod.rs:1539 [INFO] [stderr] 6: 0x55e0dddae210 - std::sys_common::backtrace::_print::hb55cc635eaf1882e [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stderr] 7: 0x55e0dddae210 - std::sys_common::backtrace::print::h2b2218fa55714084 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stderr] 8: 0x55e0dddae210 - std::panicking::default_hook::{{closure}}::h578517c025765cf3 [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 9: 0x55e0dddadf5c - std::panicking::default_hook::h4cafc94c2fc640fb [INFO] [stderr] at src/libstd/panicking.rs:217 [INFO] [stderr] 10: 0x55e0dddae853 - std::panicking::rust_panic_with_hook::h3eeb5001beeca5c3 [INFO] [stderr] at src/libstd/panicking.rs:526 [INFO] [stderr] 11: 0x55e0dddae44b - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:437 [INFO] [stderr] 12: 0x55e0dddcd111 - core::panicking::panic_fmt::h78830ea6a34e7206 [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 13: 0x55e0dddccf33 - core::option::expect_none_failed::hf79bbb5ca7e09e08 [INFO] [stderr] at src/libcore/option.rs:1269 [INFO] [stderr] 14: 0x55e0ddd8509b - core::result::Result::unwrap::h4a5df7088e76e809 [INFO] [stderr] at /rustc/8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e/src/libcore/result.rs:1005 [INFO] [stderr] 15: 0x55e0ddd81805 - build_script_build::main::h1908632b746efad9 [INFO] [stderr] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc_version_runtime-0.1.5/build.rs:27 [INFO] [stderr] 16: 0x55e0ddd8364b - std::rt::lang_start::{{closure}}::h559589f2f11c70a9 [INFO] [stderr] at /rustc/8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e/src/libstd/rt.rs:67 [INFO] [stderr] 17: 0x55e0dddaec23 - std::rt::lang_start_internal::{{closure}}::h155f3093add35bce [INFO] [stderr] at src/libstd/rt.rs:52 [INFO] [stderr] 18: 0x55e0dddaec23 - std::panicking::try::do_call::h45f1f66ee6b987d6 [INFO] [stderr] at src/libstd/panicking.rs:348 [INFO] [stderr] 19: 0x55e0dddaec23 - std::panicking::try::h0924dfb942cef7e3 [INFO] [stderr] at src/libstd/panicking.rs:325 [INFO] [stderr] 20: 0x55e0dddaec23 - std::panic::catch_unwind::h883180846c5b53fa [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 21: 0x55e0dddaec23 - std::rt::lang_start_internal::he9284d43a52786c5 [INFO] [stderr] at src/libstd/rt.rs:51 [INFO] [stderr] 22: 0x55e0ddd83627 - std::rt::lang_start::he3f13955a934ad04 [INFO] [stderr] at /rustc/8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e/src/libstd/rt.rs:67 [INFO] [stderr] 23: 0x55e0ddd8289a - main [INFO] [stderr] 24: 0x7f87d78e80b3 - __libc_start_main [INFO] [stderr] 25: 0x55e0ddd8117e - _start [INFO] [stderr] 26: 0x0 - [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "59fde2a0f71bac39dca4aa885f54ab34dd120e12fe72b0f34decab2db9291c2d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "59fde2a0f71bac39dca4aa885f54ab34dd120e12fe72b0f34decab2db9291c2d", kill_on_drop: false }` [INFO] [stdout] 59fde2a0f71bac39dca4aa885f54ab34dd120e12fe72b0f34decab2db9291c2d