[INFO] updating cached repository keaganr/CS4121ChatRoom
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/keaganr/CS4121ChatRoom
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/keaganr/CS4121ChatRoom" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/keaganr/CS4121ChatRoom"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/keaganr/CS4121ChatRoom'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/keaganr/CS4121ChatRoom" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/keaganr/CS4121ChatRoom"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/keaganr/CS4121ChatRoom'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 953d6899b7ebc8d68157fd569cde272627df0792
[INFO] sha for GitHub repo keaganr/CS4121ChatRoom: 953d6899b7ebc8d68157fd569cde272627df0792
[INFO] validating manifest of keaganr/CS4121ChatRoom on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of keaganr/CS4121ChatRoom on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing keaganr/CS4121ChatRoom
[INFO] finished frobbing keaganr/CS4121ChatRoom
[INFO] frobbed toml for keaganr/CS4121ChatRoom written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/keaganr/CS4121ChatRoom/Cargo.toml
[INFO] started frobbing keaganr/CS4121ChatRoom
[INFO] finished frobbing keaganr/CS4121ChatRoom
[INFO] frobbed toml for keaganr/CS4121ChatRoom written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/keaganr/CS4121ChatRoom/Cargo.toml
[INFO] crate keaganr/CS4121ChatRoom already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/keaganr/CS4121ChatRoom/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/blackbeam/rust-mysql-simple.git`
[INFO] [stderr]     Updating git repository `https://github.com/jeaye/ncurses-rs.git`
[INFO] [stderr]     Updating git repository `https://github.com/gchp/rustbox.git`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/blackbeam/rust-mysql-simple.git`
[INFO] [stderr]     Updating git repository `https://github.com/jeaye/ncurses-rs.git`
[INFO] [stderr]     Updating git repository `https://github.com/gchp/rustbox.git`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking keaganr/CS4121ChatRoom against master#452087b4bf18cece2d52d7cd8c9147195e5404bf for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-2/master#452087b4bf18cece2d52d7cd8c9147195e5404bf:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/keaganr/CS4121ChatRoom:/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" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] df3cd2a2f69fc09cee012ea2f0f8567d407686be97f5e754481f99f2793320ff
[INFO] running `"docker" "start" "-a" "df3cd2a2f69fc09cee012ea2f0f8567d407686be97f5e754481f99f2793320ff"`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]    Compiling termbox-sys v0.2.11
[INFO] [stderr]    Compiling mysql v16.1.0 (https://github.com/blackbeam/rust-mysql-simple.git#d6a6a7c3)
[INFO] [stderr]     Checking bit-vec v0.6.1
[INFO] [stderr]     Checking url v2.1.0
[INFO] [stderr]     Checking regex v1.2.1
[INFO] [stderr] error: `use_std` feature is currently required to build this crate
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-1.2.1/src/lib.rs:515:1
[INFO] [stderr]     |
[INFO] [stderr] 515 | compile_error!("`use_std` feature is currently required to build this crate");
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `Error`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-1.2.1/src/compile.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use Error;
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     no `Error` in the root
[INFO] [stderr]    |     help: a similar name exists in the module: `error`
[INFO] [stderr] 
[INFO] [stderr] error: failed to run custom build command for `termbox-sys v0.2.11`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/termbox-sys-6b873b465d9011b1/build-script-build` (exit code: 101)
[INFO] [stderr] --- stdout
[INFO] [stderr] running: "rm" "-rf" ".termbox"
[INFO] [stderr] running: "git" "clone" "https://github.com/nsf/termbox" ".termbox"
[INFO] [stderr] 
[INFO] [stderr] --- stderr
[INFO] [stderr] fatal: could not create work tree dir '.termbox': Read-only file system
[INFO] [stderr] thread 'main' panicked at 'assertion failed: cmd.stdout(Stdio::inherit()).stderr(Stdio::inherit()).status().unwrap().success()', /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/termbox-sys-0.2.11/build.rs:88:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x56230418daeb - backtrace::backtrace::libunwind::trace::h5d27dcba3b250cfe
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x56230418daeb - backtrace::backtrace::trace_unsynchronized::h239341a8b1cadbab
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x56230418daeb - std::sys_common::backtrace::_print::hb0e5dd39180a1838
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x56230418daeb - std::sys_common::backtrace::print::h9b385b2285f057b8
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x56230418daeb - std::panicking::default_hook::{{closure}}::he3310a15a78966b4
[INFO] [stderr]                                at src/libstd/panicking.rs:200
[INFO] [stderr]    5:     0x56230418d7c6 - std::panicking::default_hook::h2986f418df62eff4
[INFO] [stderr]                                at src/libstd/panicking.rs:214
[INFO] [stderr]    6:     0x56230418e1ad - std::panicking::rust_panic_with_hook::h15065386631d2a9d
[INFO] [stderr]                                at src/libstd/panicking.rs:477
[INFO] [stderr]    7:     0x562304180491 - std::panicking::begin_panic::hf24d7e85a1293f16
[INFO] [stderr]                                at /rustc/452087b4bf18cece2d52d7cd8c9147195e5404bf/src/libstd/panicking.rs:411
[INFO] [stderr]    8:     0x56230417ef74 - build_script_build::run::hf75e8841690a0c9c
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/termbox-sys-0.2.11/build.rs:88
[INFO] [stderr]    9:     0x56230417e63a - build_script_build::setup::h667335470268d73a
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/termbox-sys-0.2.11/build.rs:28
[INFO] [stderr]   10:     0x56230417e338 - build_script_build::main::h83de430da3348258
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/termbox-sys-0.2.11/build.rs:10
[INFO] [stderr]   11:     0x562304180300 - std::rt::lang_start::{{closure}}::ha5fd555c85787d37
[INFO] [stderr]                                at /rustc/452087b4bf18cece2d52d7cd8c9147195e5404bf/src/libstd/rt.rs:64
[INFO] [stderr]   12:     0x56230418dc03 - std::rt::lang_start_internal::{{closure}}::hbf4603a1e6e1424d
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   13:     0x56230418dc03 - std::panicking::try::do_call::h7642e0de797eeae0
[INFO] [stderr]                                at src/libstd/panicking.rs:296
[INFO] [stderr]   14:     0x56230419400a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   15:     0x56230418e6bd - std::panicking::try::h17f145530f8b5a3f
[INFO] [stderr]                                at src/libstd/panicking.rs:275
[INFO] [stderr]   16:     0x56230418e6bd - std::panic::catch_unwind::hcee1b9b07ea0f9dc
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   17:     0x56230418e6bd - std::rt::lang_start_internal::h82d44298f58b2cfd
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   18:     0x5623041802d9 - std::rt::lang_start::h12579360ec054604
[INFO] [stderr]                                at /rustc/452087b4bf18cece2d52d7cd8c9147195e5404bf/src/libstd/rt.rs:64
[INFO] [stderr]   19:     0x56230417efaa - main
[INFO] [stderr]   20:     0x7f7c67e762e1 - __libc_start_main
[INFO] [stderr]   21:     0x5623041743fa - _start
[INFO] [stderr]   22:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `regex`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "df3cd2a2f69fc09cee012ea2f0f8567d407686be97f5e754481f99f2793320ff"`
[INFO] running `"docker" "rm" "-f" "df3cd2a2f69fc09cee012ea2f0f8567d407686be97f5e754481f99f2793320ff"`
[INFO] [stdout] df3cd2a2f69fc09cee012ea2f0f8567d407686be97f5e754481f99f2793320ff