[INFO] fetching crate graphite_mc_constants 0.1.0...
[INFO] checking graphite_mc_constants-0.1.0 against master#4d1bd0db7f489b22c6d8aa2385937a95412c015b for pr-114682
[INFO] extracting crate graphite_mc_constants 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate graphite_mc_constants 0.1.0 on toolchain 4d1bd0db7f489b22c6d8aa2385937a95412c015b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate graphite_mc_constants 0.1.0
[INFO] finished tweaking crates.io crate graphite_mc_constants 0.1.0
[INFO] tweaked toml for crates.io crate graphite_mc_constants 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded graphite_binary_macros v0.1.0
[INFO] [stderr]   Downloaded graphite_binary v0.1.0
[INFO] [stderr]   Downloaded graphite_mc_protocol v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0c706c43ce5000554be8e5d8e4dcc4e9baae5005535dc5cd440f1362ff6236d5
[INFO] running `Command { std: "docker" "start" "-a" "0c706c43ce5000554be8e5d8e4dcc4e9baae5005535dc5cd440f1362ff6236d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c706c43ce5000554be8e5d8e4dcc4e9baae5005535dc5cd440f1362ff6236d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c706c43ce5000554be8e5d8e4dcc4e9baae5005535dc5cd440f1362ff6236d5", kill_on_drop: false }`
[INFO] [stdout] 0c706c43ce5000554be8e5d8e4dcc4e9baae5005535dc5cd440f1362ff6236d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 558f861a1d3f384777db2efba78415243bc5306664af5cfbf642b35251d4760b
[INFO] running `Command { std: "docker" "start" "-a" "558f861a1d3f384777db2efba78415243bc5306664af5cfbf642b35251d4760b", kill_on_drop: false }`
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling ryu v1.0.16
[INFO] [stderr]    Compiling itoa v1.0.10
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]    Compiling convert_case v0.5.0
[INFO] [stderr]     Checking cesu8 v1.1.0
[INFO] [stderr]    Compiling syn v2.0.42
[INFO] [stderr]    Compiling anyhow v1.0.76
[INFO] [stderr]    Compiling num_enum_derive v0.5.11
[INFO] [stderr]    Compiling graphite_binary_macros v0.1.0
[INFO] [stderr]     Checking num_enum v0.5.11
[INFO] [stderr]    Compiling thiserror-impl v1.0.51
[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stderr]    Compiling readonly v0.2.11
[INFO] [stderr]    Compiling thiserror v1.0.51
[INFO] [stderr]     Checking graphite_binary v0.1.0
[INFO] [stderr]     Checking graphite_mc_protocol v0.1.0
[INFO] [stderr]    Compiling graphite_mc_constants v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `graphite_mc_constants v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/graphite_mc_constants-7bb001f7affa719c/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at build.rs:48:42:
[INFO] [stderr]   called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55fdb3a5250c - std::backtrace_rs::backtrace::libunwind::trace::hf82e7f192d52e64b
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stderr]      1:     0x55fdb3a5250c - std::backtrace_rs::backtrace::trace_unsynchronized::h5ac203979c6adda5
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55fdb3a5250c - std::sys_common::backtrace::_print_fmt::hed146a3c2f312bec
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stderr]      3:     0x55fdb3a5250c - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h447a09b0c9d8b3be
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]      4:     0x55fdb3a772b0 - core::fmt::rt::Argument::fmt::h5746129e8952c9d4
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/core/src/fmt/rt.rs:142:9
[INFO] [stderr]      5:     0x55fdb3a772b0 - core::fmt::write::he3c7b4da87cac5c9
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/core/src/fmt/mod.rs:1120:17
[INFO] [stderr]      6:     0x55fdb3a5075f - std::io::Write::write_fmt::h38bdb49a4fbe0f79
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/io/mod.rs:1810:15
[INFO] [stderr]      7:     0x55fdb3a522f4 - std::sys_common::backtrace::_print::h433ad827a8eb7117
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]      8:     0x55fdb3a522f4 - std::sys_common::backtrace::print::hd30f60963b6f931b
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]      9:     0x55fdb3a53807 - std::panicking::default_hook::{{closure}}::hae6c6d0460433514
[INFO] [stderr]     10:     0x55fdb3a5356f - std::panicking::default_hook::h26f114e2654b4583
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/panicking.rs:292:9
[INFO] [stderr]     11:     0x55fdb3a53c88 - std::panicking::rust_panic_with_hook::h8da09eceb4025e00
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/panicking.rs:779:13
[INFO] [stderr]     12:     0x55fdb3a53b6e - std::panicking::begin_panic_handler::{{closure}}::h14ccf55fd0d8568a
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/panicking.rs:657:13
[INFO] [stderr]     13:     0x55fdb3a529d6 - std::sys_common::backtrace::__rust_end_short_backtrace::hc4279fec1eb11e57
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stderr]     14:     0x55fdb3a538d2 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/panicking.rs:645:5
[INFO] [stderr]     15:     0x55fdb3961735 - core::panicking::panic_fmt::hdcd414b50414e074
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/core/src/panicking.rs:72:14
[INFO] [stderr]     16:     0x55fdb3961ce3 - core::result::unwrap_failed::h3b43defab008b2e8
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/core/src/result.rs:1649:5
[INFO] [stderr]     17:     0x55fdb39d49e4 - core::result::Result<T,E>::unwrap::h1b9886063f255ed4
[INFO] [stderr]     18:     0x55fdb39e8e2f - build_script_build::file_src::h343603f61bd14b14
[INFO] [stderr]     19:     0x55fdb39a19b1 - build_script_build::block::write_block_rs::ha7644415dc2570f7
[INFO] [stderr]     20:     0x55fdb399cf73 - build_script_build::block::write_block_states::h5a94143e9322e9c0
[INFO] [stderr]     21:     0x55fdb39e88c6 - build_script_build::main::h2c14b5516f5556d5
[INFO] [stderr]     22:     0x55fdb39f65c3 - core::ops::function::FnOnce::call_once::hd1f28d5ece3fa221
[INFO] [stderr]     23:     0x55fdb39fc066 - std::sys_common::backtrace::__rust_begin_short_backtrace::hd27bbcda1e27c030
[INFO] [stderr]     24:     0x55fdb39f5509 - std::rt::lang_start::{{closure}}::hbaf46a8d16920479
[INFO] [stderr]     25:     0x55fdb3a4c6a7 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h658622c66563c38f
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/core/src/ops/function.rs:284:13
[INFO] [stderr]     26:     0x55fdb3a4c6a7 - std::panicking::try::do_call::h8002e07ffb435d48
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/panicking.rs:552:40
[INFO] [stderr]     27:     0x55fdb3a4c6a7 - std::panicking::try::he04747d1428f9f5a
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/panicking.rs:516:19
[INFO] [stderr]     28:     0x55fdb3a4c6a7 - std::panic::catch_unwind::h8f4636046dcfb2df
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/panic.rs:142:14
[INFO] [stderr]     29:     0x55fdb3a4c6a7 - std::rt::lang_start_internal::{{closure}}::h8dffd1ea3bc0d1d0
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/rt.rs:148:48
[INFO] [stderr]     30:     0x55fdb3a4c6a7 - std::panicking::try::do_call::h5989f348b191affb
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/panicking.rs:552:40
[INFO] [stderr]     31:     0x55fdb3a4c6a7 - std::panicking::try::hfbc357d86d926a0e
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/panicking.rs:516:19
[INFO] [stderr]     32:     0x55fdb3a4c6a7 - std::panic::catch_unwind::he50dac537cfd37b0
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/panic.rs:142:14
[INFO] [stderr]     33:     0x55fdb3a4c6a7 - std::rt::lang_start_internal::h455d839bebdeb5d7
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/rt.rs:148:20
[INFO] [stderr]     34:     0x55fdb39f54e7 - std::rt::lang_start::hdacd09d310e28a14
[INFO] [stderr]     35:     0x55fdb39e90c5 - main
[INFO] [stderr]     36:     0x7fab506fdd90 - <unknown>
[INFO] [stderr]     37:     0x7fab506fde40 - __libc_start_main
[INFO] [stderr]     38:     0x55fdb3961fe5 - _start
[INFO] [stderr]     39:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "558f861a1d3f384777db2efba78415243bc5306664af5cfbf642b35251d4760b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "558f861a1d3f384777db2efba78415243bc5306664af5cfbf642b35251d4760b", kill_on_drop: false }`
[INFO] [stdout] 558f861a1d3f384777db2efba78415243bc5306664af5cfbf642b35251d4760b
[INFO] checking graphite_mc_constants-0.1.0 against try#785364c7e5e0804473a3fddfb579798ea14e3493 for pr-114682
[INFO] extracting crate graphite_mc_constants 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate graphite_mc_constants 0.1.0 on toolchain 785364c7e5e0804473a3fddfb579798ea14e3493
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate graphite_mc_constants 0.1.0
[INFO] finished tweaking crates.io crate graphite_mc_constants 0.1.0
[INFO] tweaked toml for crates.io crate graphite_mc_constants 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f05efaa5d6dac36b73e6667890885878d0b9ea672934cd2692dd2d0ae57e673a
[INFO] running `Command { std: "docker" "start" "-a" "f05efaa5d6dac36b73e6667890885878d0b9ea672934cd2692dd2d0ae57e673a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f05efaa5d6dac36b73e6667890885878d0b9ea672934cd2692dd2d0ae57e673a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f05efaa5d6dac36b73e6667890885878d0b9ea672934cd2692dd2d0ae57e673a", kill_on_drop: false }`
[INFO] [stdout] f05efaa5d6dac36b73e6667890885878d0b9ea672934cd2692dd2d0ae57e673a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be664a745458898a205c482402301d5068b4046a5a96529b3c6911ab740213da
[INFO] running `Command { std: "docker" "start" "-a" "be664a745458898a205c482402301d5068b4046a5a96529b3c6911ab740213da", kill_on_drop: false }`
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling itoa v1.0.10
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]    Compiling ryu v1.0.16
[INFO] [stderr]     Checking cesu8 v1.1.0
[INFO] [stderr]    Compiling convert_case v0.5.0
[INFO] [stderr]    Compiling anyhow v1.0.76
[INFO] [stderr]    Compiling syn v2.0.42
[INFO] [stderr]    Compiling num_enum_derive v0.5.11
[INFO] [stderr]    Compiling graphite_binary_macros v0.1.0
[INFO] [stderr]     Checking num_enum v0.5.11
[INFO] [stderr]    Compiling thiserror-impl v1.0.51
[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stderr]    Compiling readonly v0.2.11
[INFO] [stderr]     Checking thiserror v1.0.51
[INFO] [stderr]     Checking graphite_binary v0.1.0
[INFO] [stderr]     Checking graphite_mc_protocol v0.1.0
[INFO] [stderr]    Compiling graphite_mc_constants v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `graphite_mc_constants v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/graphite_mc_constants-7bb001f7affa719c/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at build.rs:48:42:
[INFO] [stderr]   called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x563c39e4550c - std::backtrace_rs::backtrace::libunwind::trace::h9789de5fcc494f39
[INFO] [stderr]                                  at /rustc/785364c7e5e0804473a3fddfb579798ea14e3493/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stderr]      1:     0x563c39e4550c - std::backtrace_rs::backtrace::trace_unsynchronized::ha6083f64b534560a
[INFO] [stderr]                                  at /rustc/785364c7e5e0804473a3fddfb579798ea14e3493/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x563c39e4550c - std::sys_common::backtrace::_print_fmt::hca82da572808fb58
[INFO] [stderr]                                  at /rustc/785364c7e5e0804473a3fddfb579798ea14e3493/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stderr]      3:     0x563c39e4550c - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hdb2ed8d6897c333a
[INFO] [stderr]                                  at /rustc/785364c7e5e0804473a3fddfb579798ea14e3493/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]      4:     0x563c39e6a2b0 - core::fmt::rt::Argument::fmt::h250ce007264abde4
[INFO] [stderr]                                  at /rustc/785364c7e5e0804473a3fddfb579798ea14e3493/library/core/src/fmt/rt.rs:142:9
[INFO] [stderr]      5:     0x563c39e6a2b0 - core::fmt::write::he9913548e4982ad0
[INFO] [stderr]                                  at /rustc/785364c7e5e0804473a3fddfb579798ea14e3493/library/core/src/fmt/mod.rs:1120:17
[INFO] [stderr]      6:     0x563c39e4375f - std::io::Write::write_fmt::h1e4c28dcba2b3367
[INFO] [stderr]                                  at /rustc/785364c7e5e0804473a3fddfb579798ea14e3493/library/std/src/io/mod.rs:1810:15
[INFO] [stderr]      7:     0x563c39e452f4 - std::sys_common::backtrace::_print::he7a042d62e9ec33d
[INFO] [stderr]                                  at /rustc/785364c7e5e0804473a3fddfb579798ea14e3493/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]      8:     0x563c39e452f4 - std::sys_common::backtrace::print::h40fa6d4a866b97b4
[INFO] [stderr]                                  at /rustc/785364c7e5e0804473a3fddfb579798ea14e3493/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]      9:     0x563c39e46807 - std::panicking::default_hook::{{closure}}::h7f0560eafc245a7c
[INFO] [stderr]     10:     0x563c39e4656f - std::panicking::default_hook::hfd695e1920cd982e
[INFO] [stderr]                                  at /rustc/785364c7e5e0804473a3fddfb579798ea14e3493/library/std/src/panicking.rs:292:9
[INFO] [stderr]     11:     0x563c39e46c88 - std::panicking::rust_panic_with_hook::hc0fcd647af5eb061
[INFO] [stderr]                                  at /rustc/785364c7e5e0804473a3fddfb579798ea14e3493/library/std/src/panicking.rs:779:13
[INFO] [stderr]     12:     0x563c39e46b6e - std::panicking::begin_panic_handler::{{closure}}::hbd1eb336070930d3
[INFO] [stderr]                                  at /rustc/785364c7e5e0804473a3fddfb579798ea14e3493/library/std/src/panicking.rs:657:13
[INFO] [stderr]     13:     0x563c39e459d6 - std::sys_common::backtrace::__rust_end_short_backtrace::h1eefd8026e5b6577
[INFO] [stderr]                                  at /rustc/785364c7e5e0804473a3fddfb579798ea14e3493/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stderr]     14:     0x563c39e468d2 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/785364c7e5e0804473a3fddfb579798ea14e3493/library/std/src/panicking.rs:645:5
[INFO] [stderr]     15:     0x563c39d54735 - core::panicking::panic_fmt::h178e74ce775be6d6
[INFO] [stderr]                                  at /rustc/785364c7e5e0804473a3fddfb579798ea14e3493/library/core/src/panicking.rs:72:14
[INFO] [stderr]     16:     0x563c39d54ce3 - core::result::unwrap_failed::h33a01bede1ae29a2
[INFO] [stderr]                                  at /rustc/785364c7e5e0804473a3fddfb579798ea14e3493/library/core/src/result.rs:1649:5
[INFO] [stderr]     17:     0x563c39dc7ab4 - core::result::Result<T,E>::unwrap::hb948419b1c7df265
[INFO] [stderr]     18:     0x563c39ddbe2f - build_script_build::file_src::h6757e6a31bc7220c
[INFO] [stderr]     19:     0x563c39d949b1 - build_script_build::block::write_block_rs::h7232e2800dba85e2
[INFO] [stderr]     20:     0x563c39d8ff73 - build_script_build::block::write_block_states::h4fa52e0340da1e08
[INFO] [stderr]     21:     0x563c39ddb8c6 - build_script_build::main::h76266e78b3ab9514
[INFO] [stderr]     22:     0x563c39de9673 - core::ops::function::FnOnce::call_once::hdf062793ab610fba
[INFO] [stderr]     23:     0x563c39def066 - std::sys_common::backtrace::__rust_begin_short_backtrace::h84e761e6e0612273
[INFO] [stderr]     24:     0x563c39de8509 - std::rt::lang_start::{{closure}}::hbd849b2faf075401
[INFO] [stderr]     25:     0x563c39e3f6a7 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hd85bd4e6518d0bb8
[INFO] [stderr]                                  at /rustc/785364c7e5e0804473a3fddfb579798ea14e3493/library/core/src/ops/function.rs:284:13
[INFO] [stderr]     26:     0x563c39e3f6a7 - std::panicking::try::do_call::h7f13924d4fb67a0d
[INFO] [stderr]                                  at /rustc/785364c7e5e0804473a3fddfb579798ea14e3493/library/std/src/panicking.rs:552:40
[INFO] [stderr]     27:     0x563c39e3f6a7 - std::panicking::try::h9e27be4af101a30d
[INFO] [stderr]                                  at /rustc/785364c7e5e0804473a3fddfb579798ea14e3493/library/std/src/panicking.rs:516:19
[INFO] [stderr]     28:     0x563c39e3f6a7 - std::panic::catch_unwind::h3519b91c36f56574
[INFO] [stderr]                                  at /rustc/785364c7e5e0804473a3fddfb579798ea14e3493/library/std/src/panic.rs:142:14
[INFO] [stderr]     29:     0x563c39e3f6a7 - std::rt::lang_start_internal::{{closure}}::hb39bed8b01a0a169
[INFO] [stderr]                                  at /rustc/785364c7e5e0804473a3fddfb579798ea14e3493/library/std/src/rt.rs:148:48
[INFO] [stderr]     30:     0x563c39e3f6a7 - std::panicking::try::do_call::hfbc1ccc440a3db03
[INFO] [stderr]                                  at /rustc/785364c7e5e0804473a3fddfb579798ea14e3493/library/std/src/panicking.rs:552:40
[INFO] [stderr]     31:     0x563c39e3f6a7 - std::panicking::try::h02821aa69a013e27
[INFO] [stderr]                                  at /rustc/785364c7e5e0804473a3fddfb579798ea14e3493/library/std/src/panicking.rs:516:19
[INFO] [stderr]     32:     0x563c39e3f6a7 - std::panic::catch_unwind::hed6681082d7b3d4e
[INFO] [stderr]                                  at /rustc/785364c7e5e0804473a3fddfb579798ea14e3493/library/std/src/panic.rs:142:14
[INFO] [stderr]     33:     0x563c39e3f6a7 - std::rt::lang_start_internal::hbff7c6fd005b9bf2
[INFO] [stderr]                                  at /rustc/785364c7e5e0804473a3fddfb579798ea14e3493/library/std/src/rt.rs:148:20
[INFO] [stderr]     34:     0x563c39de84e7 - std::rt::lang_start::h13a29eb3763f2464
[INFO] [stderr]     35:     0x563c39ddc0c5 - main
[INFO] [stderr]     36:     0x7f6fb76f1d90 - <unknown>
[INFO] [stderr]     37:     0x7f6fb76f1e40 - __libc_start_main
[INFO] [stderr]     38:     0x563c39d54fe5 - _start
[INFO] [stderr]     39:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "be664a745458898a205c482402301d5068b4046a5a96529b3c6911ab740213da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be664a745458898a205c482402301d5068b4046a5a96529b3c6911ab740213da", kill_on_drop: false }`
[INFO] [stdout] be664a745458898a205c482402301d5068b4046a5a96529b3c6911ab740213da
