[INFO] updating cached repository https://github.com/Usummon/tic-tac-toe
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bd419e23be654abee44c6ef93c1499852ea09fd8
[INFO] checking Usummon/tic-tac-toe against master#fe6d05a8b32f5c66c427ca524dbcce5a7145f87e for pr-64327
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FUsummon%2Ftic-tac-toe" "work/builds/worker-7/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-7/source'...
[INFO] [stderr] done.
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[INFO] validating manifest of git repo https://github.com/Usummon/tic-tac-toe on toolchain fe6d05a8b32f5c66c427ca524dbcce5a7145f87e-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+fe6d05a8b32f5c66c427ca524dbcce5a7145f87e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Usummon/tic-tac-toe
[INFO] finished tweaking git repo https://github.com/Usummon/tic-tac-toe
[INFO] tweaked toml for git repo https://github.com/Usummon/tic-tac-toe written to work/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Usummon/tic-tac-toe already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+fe6d05a8b32f5c66c427ca524dbcce5a7145f87e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+fe6d05a8b32f5c66c427ca524dbcce5a7145f87e-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ea40064d6be15b0d28777c1ffe3ffbe5361ed67b74c497b7cf95c37d7a9fe186
[INFO] running `"docker" "start" "-a" "ea40064d6be15b0d28777c1ffe3ffbe5361ed67b74c497b7cf95c37d7a9fe186"`
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]     Checking backtrace-sys v0.1.28
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking memmap v0.6.2
[INFO] [stderr]     Checking uname v0.1.1
[INFO] [stderr]     Checking hostname v0.1.5
[INFO] [stderr]    Compiling lexical-core v0.4.1
[INFO] [stderr]     Checking x11 v2.18.1
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking ash v0.29.0
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]    Compiling glsl-layout-derive v0.3.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking backtrace v0.3.30
[INFO] [stderr]    Compiling rustc_version_runtime v0.1.5
[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-305de86d9771e817/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" }', src/libcore/result.rs:1165:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55a92354aa44 - backtrace::backtrace::libunwind::trace::h7b2a6b74301d37f0
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x55a92354aa44 - backtrace::backtrace::trace_unsynchronized::h89a5cf99a9618766
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x55a92354aa44 - std::sys_common::backtrace::_print_fmt::h33a2346af837f531
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:77
[INFO] [stderr]    3:     0x55a92354aa44 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h4f658ab4e42d366e
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:61
[INFO] [stderr]    4:     0x55a92356895c - core::fmt::write::hd5bbaf3e01e48326
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1030
[INFO] [stderr]    5:     0x55a923548537 - std::io::Write::write_fmt::h6193b508653ddcc9
[INFO] [stderr]                                at src/libstd/io/mod.rs:1412
[INFO] [stderr]    6:     0x55a92354cdc5 - std::sys_common::backtrace::_print::he914b53d7a09a78d
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:65
[INFO] [stderr]    7:     0x55a92354cdc5 - std::sys_common::backtrace::print::h92a8cb6723718f63
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:50
[INFO] [stderr]    8:     0x55a92354cdc5 - std::panicking::default_hook::{{closure}}::hf505e0d7e2ecd403
[INFO] [stderr]                                at src/libstd/panicking.rs:200
[INFO] [stderr]    9:     0x55a92354cab6 - std::panicking::default_hook::hc6772d9600f23c72
[INFO] [stderr]                                at src/libstd/panicking.rs:214
[INFO] [stderr]   10:     0x55a92354d415 - std::panicking::rust_panic_with_hook::h7372d52cdbd74b87
[INFO] [stderr]                                at src/libstd/panicking.rs:477
[INFO] [stderr]   11:     0x55a92354cfb2 - std::panicking::continue_panic_fmt::h73b3f53425683dc6
[INFO] [stderr]                                at src/libstd/panicking.rs:384
[INFO] [stderr]   12:     0x55a92354cea6 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:311
[INFO] [stderr]   13:     0x55a92356607a - core::panicking::panic_fmt::hbcbcea482a1f859e
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]   14:     0x55a923566177 - core::result::unwrap_failed::h8065af330f1ff736
[INFO] [stderr]                                at src/libcore/result.rs:1165
[INFO] [stderr]   15:     0x55a92351dc50 - core::result::Result<T,E>::unwrap::hd7f2c7606383af29
[INFO] [stderr]                                at /rustc/fe6d05a8b32f5c66c427ca524dbcce5a7145f87e/src/libcore/result.rs:933
[INFO] [stderr]   16:     0x55a92351a2ab - build_script_build::main::he8adc3ecd0168129
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc_version_runtime-0.1.5/build.rs:27
[INFO] [stderr]   17:     0x55a92351ba40 - std::rt::lang_start::{{closure}}::h5b675faa92b3a117
[INFO] [stderr]                                at /rustc/fe6d05a8b32f5c66c427ca524dbcce5a7145f87e/src/libstd/rt.rs:64
[INFO] [stderr]   18:     0x55a92354ce93 - std::rt::lang_start_internal::{{closure}}::h9d96e46706cace5b
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   19:     0x55a92354ce93 - std::panicking::try::do_call::h35d84c71f56bf844
[INFO] [stderr]                                at src/libstd/panicking.rs:296
[INFO] [stderr]   20:     0x55a92355324a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   21:     0x55a92354d90d - std::panicking::try::h2c16ac107e4a3736
[INFO] [stderr]                                at src/libstd/panicking.rs:275
[INFO] [stderr]   22:     0x55a92354d90d - std::panic::catch_unwind::h61680e437015f378
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   23:     0x55a92354d90d - std::rt::lang_start_internal::h9e089243f326ffce
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   24:     0x55a92351ba19 - std::rt::lang_start::hf4c88e89b9cda91e
[INFO] [stderr]                                at /rustc/fe6d05a8b32f5c66c427ca524dbcce5a7145f87e/src/libstd/rt.rs:64
[INFO] [stderr]   25:     0x55a92351b28a - main
[INFO] [stderr]   26:     0x7fa3fe489b97 - __libc_start_main
[INFO] [stderr]   27:     0x55a923519c7a - _start
[INFO] [stderr]   28:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "ea40064d6be15b0d28777c1ffe3ffbe5361ed67b74c497b7cf95c37d7a9fe186"`
[INFO] running `"docker" "rm" "-f" "ea40064d6be15b0d28777c1ffe3ffbe5361ed67b74c497b7cf95c37d7a9fe186"`
[INFO] [stdout] ea40064d6be15b0d28777c1ffe3ffbe5361ed67b74c497b7cf95c37d7a9fe186