[INFO] cloning repository stevebob/four-button-roguelike [INFO] running `"git" "clone" "--bare" "git://github.com/stevebob/four-button-roguelike.git" "work/cache/sources/gh/stevebob/four-button-roguelike"` [INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/stevebob/four-button-roguelike'... [INFO] running `"git" "clone" "work/cache/sources/gh/stevebob/four-button-roguelike" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/stevebob/four-button-roguelike"` [INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/stevebob/four-button-roguelike'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/stevebob/four-button-roguelike" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/stevebob/four-button-roguelike"` [INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/stevebob/four-button-roguelike'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 5eed78e3c2a943240168d4398899a07fc0cda7d9 [INFO] sha for GitHub repo stevebob/four-button-roguelike: 5eed78e3c2a943240168d4398899a07fc0cda7d9 [INFO] validating manifest of stevebob/four-button-roguelike on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of stevebob/four-button-roguelike on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049 [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing stevebob/four-button-roguelike [INFO] finished frobbing stevebob/four-button-roguelike [INFO] frobbed toml for stevebob/four-button-roguelike written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/stevebob/four-button-roguelike/Cargo.toml [INFO] started frobbing stevebob/four-button-roguelike [INFO] finished frobbing stevebob/four-button-roguelike [INFO] frobbed toml for stevebob/four-button-roguelike written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/stevebob/four-button-roguelike/Cargo.toml [INFO] crate stevebob/four-button-roguelike already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded direction v0.1.0 [INFO] [stderr] Downloaded entity_store_helper v0.2.0 [INFO] [stderr] Downloaded entity_store_code_gen v0.2.3 [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking stevebob/four-button-roguelike against try#8f81d0bf6baf07b92f1246696722485c4ca0b049 for pr-62008 [INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-2/try#8f81d0bf6baf07b92f1246696722485c4ca0b049:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/stevebob/four-button-roguelike:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 081da6c28371ea16813534129d2666e7d6a0b5a82c57a7f582d124d8e6fbf37e [INFO] running `"docker" "start" "-a" "081da6c28371ea16813534129d2666e7d6a0b5a82c57a7f582d124d8e6fbf37e"` [INFO] [stderr] Compiling num-traits v0.1.41 [INFO] [stderr] Compiling rustc-demangle v0.1.5 [INFO] [stderr] Compiling unidecode v0.2.0 [INFO] [stderr] Compiling pest v0.4.1 [INFO] [stderr] Compiling humansize v1.0.2 [INFO] [stderr] Compiling rand v0.3.18 [INFO] [stderr] Compiling time v0.1.38 [INFO] [stderr] Checking enum_primitive v0.1.1 [INFO] [stderr] Checking num-complex v0.1.41 [INFO] [stderr] Compiling itertools v0.7.4 [INFO] [stderr] Compiling idna v0.1.4 [INFO] [stderr] Checking num-bigint v0.1.41 [INFO] [stderr] Compiling backtrace-sys v0.1.16 [INFO] [stderr] Compiling regex v0.2.3 [INFO] [stderr] Compiling num-integer v0.1.35 [INFO] [stderr] Compiling backtrace v0.3.4 [INFO] [stderr] Compiling num-iter v0.1.34 [INFO] [stderr] Compiling serde v1.0.24 [INFO] [stderr] Checking num-rational v0.1.40 [INFO] [stderr] Compiling error-chain v0.10.0 [INFO] [stderr] Compiling slug v0.1.2 [INFO] [stderr] Compiling url v1.6.0 [INFO] [stderr] Checking num v0.1.41 [INFO] [stderr] warning[E0713]: borrow may still be in use when destructor runs [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/url-1.6.0/src/form_urlencoded.rs:261:40 [INFO] [stderr] | [INFO] [stderr] 259 | impl<'a> Target for ::UrlQuery<'a> { [INFO] [stderr] | -- lifetime `'a` defined here [INFO] [stderr] 260 | fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization } [INFO] [stderr] 261 | fn finish(self) -> &'a mut ::Url { self.url } [INFO] [stderr] | ^^^^^^^^ - here, drop of `self` needs exclusive access to `*self.url`, because the type `UrlQuery<'_>` implements the `Drop` trait [INFO] [stderr] | | [INFO] [stderr] | returning this value requires that `*self.url` is borrowed for `'a` [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] = note: for more information, try `rustc --explain E0729` [INFO] [stderr] [INFO] [stderr] Compiling chrono v0.4.0 [INFO] [stderr] Checking cgmath v0.15.0 [INFO] [stderr] Compiling serde_json v1.0.8 [INFO] [stderr] Compiling toml v0.4.5 [INFO] [stderr] Compiling tera v0.10.10 [INFO] [stderr] Checking direction v0.1.0 [INFO] [stderr] Checking entity_store_helper v0.2.0 [INFO] [stderr] Compiling entity_store_code_gen v0.2.3 [INFO] [stderr] Compiling four-button-roguelike v0.1.0 (/opt/crater/workdir) [INFO] [stderr] error: failed to run custom build command for `four-button-roguelike v0.1.0 (/opt/crater/workdir)` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/crater/target/debug/build/four-button-roguelike-81e867f5cdf2ee16/build-script-build` (exit code: 101) [INFO] [stderr] --- stderr [INFO] [stderr] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Save(FailedToMakeSymlink("/opt/crater/target/debug/build/four-button-roguelike-07b8cfc44945621a/out/entity_store.rs", Os { code: 30, kind: Other, message: "Read-only file system" }))', src/libcore/result.rs:999:5 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x564659a194ab - backtrace::backtrace::libunwind::trace::h8758853b907b30fd [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x564659a194ab - backtrace::backtrace::trace_unsynchronized::h979d07d4bfdce29c [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x564659a194ab - std::sys_common::backtrace::_print::ha749bbdb811617ea [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x564659a194ab - std::sys_common::backtrace::print::h86a6ff63a904e869 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x564659a194ab - std::panicking::default_hook::{{closure}}::h68500b20afb715b9 [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 5: 0x564659a19187 - std::panicking::default_hook::ha801ade4ae33c264 [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 6: 0x564659a19bc0 - std::panicking::rust_panic_with_hook::hfb51b615c6060100 [INFO] [stderr] at src/libstd/panicking.rs:477 [INFO] [stderr] 7: 0x564659a19742 - std::panicking::continue_panic_fmt::h94bd84d5bf32c833 [INFO] [stderr] at src/libstd/panicking.rs:384 [INFO] [stderr] 8: 0x564659a19626 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:311 [INFO] [stderr] 9: 0x564659a33e3d - core::panicking::panic_fmt::h8a74e5820cacd07c [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 10: 0x5646595ae343 - core::result::unwrap_failed::he3415db7524ad4c2 [INFO] [stderr] at /rustc/8f81d0bf6baf07b92f1246696722485c4ca0b049/src/libcore/macros.rs:18 [INFO] [stderr] 11: 0x5646595ae47e - core::result::Result::unwrap::h94bc17e0c3917d63 [INFO] [stderr] at /rustc/8f81d0bf6baf07b92f1246696722485c4ca0b049/src/libcore/result.rs:800 [INFO] [stderr] 12: 0x5646595ad581 - build_script_build::main::hceebf54a64e49914 [INFO] [stderr] at /opt/crater/workdir/build.rs:4 [INFO] [stderr] 13: 0x5646595ad640 - std::rt::lang_start::{{closure}}::h1cdcfe74e0ada094 [INFO] [stderr] at /rustc/8f81d0bf6baf07b92f1246696722485c4ca0b049/src/libstd/rt.rs:64 [INFO] [stderr] 14: 0x564659a195c3 - std::rt::lang_start_internal::{{closure}}::h25858f7dd6124e1a [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 15: 0x564659a195c3 - std::panicking::try::do_call::h51cc84caa9338daf [INFO] [stderr] at src/libstd/panicking.rs:296 [INFO] [stderr] 16: 0x564659a1b9ba - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:82 [INFO] [stderr] 17: 0x564659a1a0cd - std::panicking::try::heb9d5da34e3fa707 [INFO] [stderr] at src/libstd/panicking.rs:275 [INFO] [stderr] 18: 0x564659a1a0cd - std::panic::catch_unwind::he2a2041733180f4c [INFO] [stderr] at src/libstd/panic.rs:388 [INFO] [stderr] 19: 0x564659a1a0cd - std::rt::lang_start_internal::h9e24cef029766dfd [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 20: 0x5646595ad619 - std::rt::lang_start::hf2f27a7d360c2eb7 [INFO] [stderr] at /rustc/8f81d0bf6baf07b92f1246696722485c4ca0b049/src/libstd/rt.rs:64 [INFO] [stderr] 21: 0x5646595ad5ba - main [INFO] [stderr] 22: 0x7fb5944112e1 - __libc_start_main [INFO] [stderr] 23: 0x5646595ad44a - _start [INFO] [stderr] 24: 0x0 - [INFO] [stderr] [INFO] running `"docker" "inspect" "081da6c28371ea16813534129d2666e7d6a0b5a82c57a7f582d124d8e6fbf37e"` [INFO] running `"docker" "rm" "-f" "081da6c28371ea16813534129d2666e7d6a0b5a82c57a7f582d124d8e6fbf37e"` [INFO] [stdout] 081da6c28371ea16813534129d2666e7d6a0b5a82c57a7f582d124d8e6fbf37e