[INFO] crate skeleton 0.3.3 is already in cache [INFO] extracting crate skeleton 0.3.3 into work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/skeleton/0.3.3 [INFO] extracting crate skeleton 0.3.3 into work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/skeleton/0.3.3 [INFO] validating manifest of skeleton-0.3.3 on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of skeleton-0.3.3 on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing skeleton-0.3.3 [INFO] finished frobbing skeleton-0.3.3 [INFO] frobbed toml for skeleton-0.3.3 written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/skeleton/0.3.3/Cargo.toml [INFO] started frobbing skeleton-0.3.3 [INFO] finished frobbing skeleton-0.3.3 [INFO] frobbed toml for skeleton-0.3.3 written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/skeleton/0.3.3/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] checking skeleton-0.3.3 against master#435236b8877cdb98c82eaebfb7887782277265c5 for pr-62849 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-7/master#435236b8877cdb98c82eaebfb7887782277265c5:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/skeleton/0.3.3:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 159f2bddc8fdf494ce0eb513e35c7729c38918adcf22bf3067b2ecc53640192d [INFO] running `"docker" "start" "-a" "159f2bddc8fdf494ce0eb513e35c7729c38918adcf22bf3067b2ecc53640192d"` [INFO] [stderr] Compiling skeleton v0.3.3 (/opt/crater/workdir) [INFO] [stderr] error: failed to run custom build command for `skeleton v0.3.3 (/opt/crater/workdir)` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/crater/target/debug/build/skeleton-c1306765cea83657/build-script-build` (exit code: 101) [INFO] [stderr] --- stderr [INFO] [stderr] thread 'main' panicked at 'couldn't create completion file: other os error', /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/clap-2.33.0/src/app/parser.rs:131:25 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x55ccf598424b - backtrace::backtrace::libunwind::trace::h88d9499c2d7e1dbc [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x55ccf598424b - backtrace::backtrace::trace_unsynchronized::h64df3798ffaf338f [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x55ccf598424b - std::sys_common::backtrace::_print::h549f3692f8d3f393 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x55ccf598424b - std::sys_common::backtrace::print::h037f1d7e6e0e94de [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x55ccf598424b - std::panicking::default_hook::{{closure}}::h88a39cbd1a8489c9 [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 5: 0x55ccf5983f26 - std::panicking::default_hook::hdb7c9c6632585072 [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 6: 0x55ccf598490d - std::panicking::rust_panic_with_hook::h906f2b0ace338868 [INFO] [stderr] at src/libstd/panicking.rs:477 [INFO] [stderr] 7: 0x55ccf5984492 - std::panicking::continue_panic_fmt::h3597c4d7a66a7e7b [INFO] [stderr] at src/libstd/panicking.rs:384 [INFO] [stderr] 8: 0x55ccf59843df - std::panicking::begin_panic_fmt::hbfeb66fdd1fe6f8b [INFO] [stderr] at src/libstd/panicking.rs:339 [INFO] [stderr] 9: 0x55ccf5935db5 - clap::app::parser::Parser::gen_completions::h6279410fe2e7da01 [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/clap-2.33.0/src/app/parser.rs:131 [INFO] [stderr] 10: 0x55ccf58e856a - clap::app::App::gen_completions::hb09daa3159eb3c1e [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/clap-2.33.0/src/app/mod.rs:1391 [INFO] [stderr] 11: 0x55ccf58e9115 - build_script_build::main::ha784473bea3597df [INFO] [stderr] at /opt/crater/workdir/build.rs:9 [INFO] [stderr] 12: 0x55ccf58e84b0 - std::rt::lang_start::{{closure}}::hc9762d847783fc60 [INFO] [stderr] at /rustc/435236b8877cdb98c82eaebfb7887782277265c5/src/libstd/rt.rs:64 [INFO] [stderr] 13: 0x55ccf5984363 - std::rt::lang_start_internal::{{closure}}::h9ea1b9f2bce8ffef [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 14: 0x55ccf5984363 - std::panicking::try::do_call::hfbd18154d6e81e0d [INFO] [stderr] at src/libstd/panicking.rs:296 [INFO] [stderr] 15: 0x55ccf598628a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:80 [INFO] [stderr] 16: 0x55ccf5984e1d - std::panicking::try::h9cb4b237371abf81 [INFO] [stderr] at src/libstd/panicking.rs:275 [INFO] [stderr] 17: 0x55ccf5984e1d - std::panic::catch_unwind::hd403853a39b4e3c9 [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 18: 0x55ccf5984e1d - std::rt::lang_start_internal::h7e5e162b169a1510 [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 19: 0x55ccf58e8489 - std::rt::lang_start::h2920511ae8124c9e [INFO] [stderr] at /rustc/435236b8877cdb98c82eaebfb7887782277265c5/src/libstd/rt.rs:64 [INFO] [stderr] 20: 0x55ccf58e953a - main [INFO] [stderr] 21: 0x7f958cd3e2e1 - __libc_start_main [INFO] [stderr] 22: 0x55ccf58e82da - _start [INFO] [stderr] 23: 0x0 - [INFO] [stderr] [INFO] running `"docker" "inspect" "159f2bddc8fdf494ce0eb513e35c7729c38918adcf22bf3067b2ecc53640192d"` [INFO] running `"docker" "rm" "-f" "159f2bddc8fdf494ce0eb513e35c7729c38918adcf22bf3067b2ecc53640192d"` [INFO] [stdout] 159f2bddc8fdf494ce0eb513e35c7729c38918adcf22bf3067b2ecc53640192d