[INFO] fetching crate jargon 0.3.4...
[INFO] checking jargon-0.3.4 against master#158f00a1c5175648af6f6099b075f78d1d014a28 for pr-121251
[INFO] extracting crate jargon 0.3.4 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate jargon 0.3.4 on toolchain 158f00a1c5175648af6f6099b075f78d1d014a28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jargon 0.3.4
[INFO] finished tweaking crates.io crate jargon 0.3.4
[INFO] tweaked toml for crates.io crate jargon 0.3.4 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate jargon 0.3.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+158f00a1c5175648af6f6099b075f78d1d014a28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 13872dca338cf93b6ce7721710510af5ef2ed530f2ae89af6fe5fd91af21f08a
[INFO] running `Command { std: "docker" "start" "-a" "13872dca338cf93b6ce7721710510af5ef2ed530f2ae89af6fe5fd91af21f08a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13872dca338cf93b6ce7721710510af5ef2ed530f2ae89af6fe5fd91af21f08a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13872dca338cf93b6ce7721710510af5ef2ed530f2ae89af6fe5fd91af21f08a", kill_on_drop: false }`
[INFO] [stdout] 13872dca338cf93b6ce7721710510af5ef2ed530f2ae89af6fe5fd91af21f08a
[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" "+158f00a1c5175648af6f6099b075f78d1d014a28" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c62a2e7f09d487f11e7a29cf5da90dd99ff31ef39cfb101362ea9c3e7b0a493e
[INFO] running `Command { std: "docker" "start" "-a" "c62a2e7f09d487f11e7a29cf5da90dd99ff31ef39cfb101362ea9c3e7b0a493e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling miniz_oxide v0.5.4
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]    Compiling flate2 v1.0.24
[INFO] [stderr]    Compiling aho-corasick v0.7.19
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling argh_shared v0.1.8
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling regex v1.6.0
[INFO] [stderr]    Compiling argh_derive v0.1.8
[INFO] [stderr]    Compiling jargon v0.3.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking argh v0.1.8
[INFO] [stderr] error: failed to run custom build command for `jargon v0.3.4 (/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/jargon-86c1a4c5d90a16ef/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at build.rs:65:10:
[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:     0x55a38c504f06 - std::backtrace_rs::backtrace::libunwind::trace::h4a01ad0b1654c0b3
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stderr]      1:     0x55a38c504f06 - std::backtrace_rs::backtrace::trace_unsynchronized::h9f80f9c1a87c88e7
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55a38c504f06 - std::sys_common::backtrace::_print_fmt::hfb825d5b45347dc7
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stderr]      3:     0x55a38c504f06 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hd399990d6b396792
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]      4:     0x55a38c522e6c - core::fmt::rt::Argument::fmt::h6780ff77d2596c7e
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/core/src/fmt/rt.rs:142:9
[INFO] [stderr]      5:     0x55a38c522e6c - core::fmt::write::heeb505bfc1cf113c
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/core/src/fmt/mod.rs:1120:17
[INFO] [stderr]      6:     0x55a38c5030cf - std::io::Write::write_fmt::h06956d82941b8ab5
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/std/src/io/mod.rs:1846:15
[INFO] [stderr]      7:     0x55a38c504cb4 - std::sys_common::backtrace::_print::h5a2ad20f98de74d9
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]      8:     0x55a38c504cb4 - std::sys_common::backtrace::print::hb7c2e18145b4bc56
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]      9:     0x55a38c5061ab - std::panicking::default_hook::{{closure}}::h2c7ccc2f6c33079c
[INFO] [stderr]     10:     0x55a38c505ef9 - std::panicking::default_hook::h6ae4b6e844fd8bea
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/std/src/panicking.rs:292:9
[INFO] [stderr]     11:     0x55a38c50664d - std::panicking::rust_panic_with_hook::h1591957e3d275a90
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/std/src/panicking.rs:781:13
[INFO] [stderr]     12:     0x55a38c506522 - std::panicking::begin_panic_handler::{{closure}}::h384c4e87a0cf88d5
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/std/src/panicking.rs:659:13
[INFO] [stderr]     13:     0x55a38c5053e6 - std::sys_common::backtrace::__rust_end_short_backtrace::h091aa6af759b84a7
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stderr]     14:     0x55a38c506254 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/std/src/panicking.rs:647:5
[INFO] [stderr]     15:     0x55a38c39d505 - core::panicking::panic_fmt::he1f2b784ca1ada33
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/core/src/panicking.rs:72:14
[INFO] [stderr]     16:     0x55a38c39daa3 - core::result::unwrap_failed::hd8c76879993b95b6
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/core/src/result.rs:1653:5
[INFO] [stderr]     17:     0x55a38c3adb9b - build_script_build::write_lib::haa88198a0c704ea3
[INFO] [stderr]     18:     0x55a38c3ae6f1 - build_script_build::main::hc59eef5265c5b86a
[INFO] [stderr]     19:     0x55a38c3a8be3 - core::ops::function::FnOnce::call_once::hfef699532b70ee56
[INFO] [stderr]     20:     0x55a38c3a8146 - std::sys_common::backtrace::__rust_begin_short_backtrace::h3e9b3aefef939e1c
[INFO] [stderr]     21:     0x55a38c3aa679 - std::rt::lang_start::{{closure}}::ha63f86fa70cfe26a
[INFO] [stderr]     22:     0x55a38c4fff83 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h41851747bbb13568
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/core/src/ops/function.rs:284:13
[INFO] [stderr]     23:     0x55a38c4fff83 - std::panicking::try::do_call::hb42eeca0b42872c6
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/std/src/panicking.rs:554:40
[INFO] [stderr]     24:     0x55a38c4fff83 - std::panicking::try::hab05ddea26ba6a87
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/std/src/panicking.rs:518:19
[INFO] [stderr]     25:     0x55a38c4fff83 - std::panic::catch_unwind::h4e316694ef9f1d75
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/std/src/panic.rs:142:14
[INFO] [stderr]     26:     0x55a38c4fff83 - std::rt::lang_start_internal::{{closure}}::h8eaa848bcdf1c638
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/std/src/rt.rs:148:48
[INFO] [stderr]     27:     0x55a38c4fff83 - std::panicking::try::do_call::h1b091a6d59c31bc8
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/std/src/panicking.rs:554:40
[INFO] [stderr]     28:     0x55a38c4fff83 - std::panicking::try::h8d242ccb92fdc8f8
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/std/src/panicking.rs:518:19
[INFO] [stderr]     29:     0x55a38c4fff83 - std::panic::catch_unwind::hec071b6367220669
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/std/src/panic.rs:142:14
[INFO] [stderr]     30:     0x55a38c4fff83 - std::rt::lang_start_internal::hd0b9a1b14b917412
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/std/src/rt.rs:148:20
[INFO] [stderr]     31:     0x55a38c3aa657 - std::rt::lang_start::h7bb90495e7b11f18
[INFO] [stderr]     32:     0x55a38c3ae765 - main
[INFO] [stderr]     33:     0x7f1d66e9ed90 - <unknown>
[INFO] [stderr]     34:     0x7f1d66e9ee40 - __libc_start_main
[INFO] [stderr]     35:     0x55a38c39dc55 - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "c62a2e7f09d487f11e7a29cf5da90dd99ff31ef39cfb101362ea9c3e7b0a493e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c62a2e7f09d487f11e7a29cf5da90dd99ff31ef39cfb101362ea9c3e7b0a493e", kill_on_drop: false }`
[INFO] [stdout] c62a2e7f09d487f11e7a29cf5da90dd99ff31ef39cfb101362ea9c3e7b0a493e
[INFO] checking jargon-0.3.4 against try#b4fc5dbf0bc33be331f9d893db5b3a794f29724a+rustflags=-Dexplicit_range -Dtrait_impl_range -Wrange_syntax -Wrange_bounds for pr-121251
[INFO] extracting crate jargon 0.3.4 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate jargon 0.3.4 on toolchain b4fc5dbf0bc33be331f9d893db5b3a794f29724a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jargon 0.3.4
[INFO] finished tweaking crates.io crate jargon 0.3.4
[INFO] tweaked toml for crates.io crate jargon 0.3.4 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate jargon 0.3.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "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" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 221c2bda2e3c81eedf76b03693fefd53739038b5d55ac1f5d18f23a96ca3a960
[INFO] running `Command { std: "docker" "start" "-a" "221c2bda2e3c81eedf76b03693fefd53739038b5d55ac1f5d18f23a96ca3a960", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "221c2bda2e3c81eedf76b03693fefd53739038b5d55ac1f5d18f23a96ca3a960", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "221c2bda2e3c81eedf76b03693fefd53739038b5d55ac1f5d18f23a96ca3a960", kill_on_drop: false }`
[INFO] [stdout] 221c2bda2e3c81eedf76b03693fefd53739038b5d55ac1f5d18f23a96ca3a960
[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 -Dexplicit_range -Dtrait_impl_range -Wrange_syntax -Wrange_bounds" "-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" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd78edd29ce7f3351cba41943a53da863b5c71595e76a1817376c68378f00ea6
[INFO] running `Command { std: "docker" "start" "-a" "bd78edd29ce7f3351cba41943a53da863b5c71595e76a1817376c68378f00ea6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]    Compiling miniz_oxide v0.5.4
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling argh_shared v0.1.8
[INFO] [stderr]    Compiling aho-corasick v0.7.19
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling flate2 v1.0.24
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling regex v1.6.0
[INFO] [stderr]    Compiling argh_derive v0.1.8
[INFO] [stderr]    Compiling jargon v0.3.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> build.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |     entries[start..end]
[INFO] [stdout]    |             ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-W range-syntax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]   --> build.rs:76:32
[INFO] [stdout]    |
[INFO] [stdout] 76 |         let definition = entry[1..].join(" ");
[INFO] [stdout]    |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking argh v0.1.8
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: failed to run custom build command for `jargon v0.3.4 (/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/jargon-86c1a4c5d90a16ef/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at build.rs:65:10:
[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:     0x55f526739046 - std::backtrace_rs::backtrace::libunwind::trace::h0d1f9e44284b8013
[INFO] [stderr]                                  at /rustc/b4fc5dbf0bc33be331f9d893db5b3a794f29724a/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stderr]      1:     0x55f526739046 - std::backtrace_rs::backtrace::trace_unsynchronized::h17dbeb281165c5c4
[INFO] [stderr]                                  at /rustc/b4fc5dbf0bc33be331f9d893db5b3a794f29724a/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55f526739046 - std::sys_common::backtrace::_print_fmt::h14dc86d75037f59f
[INFO] [stderr]                                  at /rustc/b4fc5dbf0bc33be331f9d893db5b3a794f29724a/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stderr]      3:     0x55f526739046 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h20915dd225a5d4c5
[INFO] [stderr]                                  at /rustc/b4fc5dbf0bc33be331f9d893db5b3a794f29724a/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]      4:     0x55f526756fac - core::fmt::rt::Argument::fmt::h6dcba5363f9a9bd4
[INFO] [stderr]                                  at /rustc/b4fc5dbf0bc33be331f9d893db5b3a794f29724a/library/core/src/fmt/rt.rs:142:9
[INFO] [stderr]      5:     0x55f526756fac - core::fmt::write::habd1cce1dd178fa9
[INFO] [stderr]                                  at /rustc/b4fc5dbf0bc33be331f9d893db5b3a794f29724a/library/core/src/fmt/mod.rs:1120:17
[INFO] [stderr]      6:     0x55f52673720f - std::io::Write::write_fmt::h335f0c916f2cc739
[INFO] [stderr]                                  at /rustc/b4fc5dbf0bc33be331f9d893db5b3a794f29724a/library/std/src/io/mod.rs:1846:15
[INFO] [stderr]      7:     0x55f526738df4 - std::sys_common::backtrace::_print::haed265422939a672
[INFO] [stderr]                                  at /rustc/b4fc5dbf0bc33be331f9d893db5b3a794f29724a/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]      8:     0x55f526738df4 - std::sys_common::backtrace::print::hc8c2d3e9fcdf3c04
[INFO] [stderr]                                  at /rustc/b4fc5dbf0bc33be331f9d893db5b3a794f29724a/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]      9:     0x55f52673a2eb - std::panicking::default_hook::{{closure}}::hc7d06f756b115521
[INFO] [stderr]     10:     0x55f52673a039 - std::panicking::default_hook::ha7d83419a7426e39
[INFO] [stderr]                                  at /rustc/b4fc5dbf0bc33be331f9d893db5b3a794f29724a/library/std/src/panicking.rs:292:9
[INFO] [stderr]     11:     0x55f52673a78d - std::panicking::rust_panic_with_hook::he6dc5d430c09608c
[INFO] [stderr]                                  at /rustc/b4fc5dbf0bc33be331f9d893db5b3a794f29724a/library/std/src/panicking.rs:781:13
[INFO] [stderr]     12:     0x55f52673a662 - std::panicking::begin_panic_handler::{{closure}}::h1ccbbc26bdbc9269
[INFO] [stderr]                                  at /rustc/b4fc5dbf0bc33be331f9d893db5b3a794f29724a/library/std/src/panicking.rs:659:13
[INFO] [stderr]     13:     0x55f526739526 - std::sys_common::backtrace::__rust_end_short_backtrace::h0f2cf51708fe91db
[INFO] [stderr]                                  at /rustc/b4fc5dbf0bc33be331f9d893db5b3a794f29724a/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stderr]     14:     0x55f52673a394 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/b4fc5dbf0bc33be331f9d893db5b3a794f29724a/library/std/src/panicking.rs:647:5
[INFO] [stderr]     15:     0x55f5265d0505 - core::panicking::panic_fmt::h6606ea0a622a0628
[INFO] [stderr]                                  at /rustc/b4fc5dbf0bc33be331f9d893db5b3a794f29724a/library/core/src/panicking.rs:72:14
[INFO] [stderr]     16:     0x55f5265d0aa3 - core::result::unwrap_failed::ha70b1663fead7bb6
[INFO] [stderr]                                  at /rustc/b4fc5dbf0bc33be331f9d893db5b3a794f29724a/library/core/src/result.rs:1653:5
[INFO] [stderr]     17:     0x55f5265e0b9b - build_script_build::write_lib::hdddb7a6bea16d29a
[INFO] [stderr]     18:     0x55f5265e16f1 - build_script_build::main::h629a662a7a7be2bc
[INFO] [stderr]     19:     0x55f5265dba93 - core::ops::function::FnOnce::call_once::h4a90b8774fe06f0e
[INFO] [stderr]     20:     0x55f5265d85e6 - std::sys_common::backtrace::__rust_begin_short_backtrace::h29188496a1ceba76
[INFO] [stderr]     21:     0x55f5265dd709 - std::rt::lang_start::{{closure}}::hf7b87316f4f33336
[INFO] [stderr]     22:     0x55f5267340c3 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::ha65186210333eb65
[INFO] [stderr]                                  at /rustc/b4fc5dbf0bc33be331f9d893db5b3a794f29724a/library/core/src/ops/function.rs:284:13
[INFO] [stderr]     23:     0x55f5267340c3 - std::panicking::try::do_call::ha06f0ae2aa773b60
[INFO] [stderr]                                  at /rustc/b4fc5dbf0bc33be331f9d893db5b3a794f29724a/library/std/src/panicking.rs:554:40
[INFO] [stderr]     24:     0x55f5267340c3 - std::panicking::try::ha69909ced466cae0
[INFO] [stderr]                                  at /rustc/b4fc5dbf0bc33be331f9d893db5b3a794f29724a/library/std/src/panicking.rs:518:19
[INFO] [stderr]     25:     0x55f5267340c3 - std::panic::catch_unwind::hbb7cc1f26ee70ef2
[INFO] [stderr]                                  at /rustc/b4fc5dbf0bc33be331f9d893db5b3a794f29724a/library/std/src/panic.rs:142:14
[INFO] [stderr]     26:     0x55f5267340c3 - std::rt::lang_start_internal::{{closure}}::hf210e7ef9470948d
[INFO] [stderr]                                  at /rustc/b4fc5dbf0bc33be331f9d893db5b3a794f29724a/library/std/src/rt.rs:148:48
[INFO] [stderr]     27:     0x55f5267340c3 - std::panicking::try::do_call::h539340602b2b4061
[INFO] [stderr]                                  at /rustc/b4fc5dbf0bc33be331f9d893db5b3a794f29724a/library/std/src/panicking.rs:554:40
[INFO] [stderr]     28:     0x55f5267340c3 - std::panicking::try::h82480fb15a4d1da6
[INFO] [stderr]                                  at /rustc/b4fc5dbf0bc33be331f9d893db5b3a794f29724a/library/std/src/panicking.rs:518:19
[INFO] [stderr]     29:     0x55f5267340c3 - std::panic::catch_unwind::he6d4670bf89494cd
[INFO] [stderr]                                  at /rustc/b4fc5dbf0bc33be331f9d893db5b3a794f29724a/library/std/src/panic.rs:142:14
[INFO] [stderr]     30:     0x55f5267340c3 - std::rt::lang_start_internal::hce6f7a496a7bd741
[INFO] [stderr]                                  at /rustc/b4fc5dbf0bc33be331f9d893db5b3a794f29724a/library/std/src/rt.rs:148:20
[INFO] [stderr]     31:     0x55f5265dd6e7 - std::rt::lang_start::he93fd2c66651da12
[INFO] [stderr]     32:     0x55f5265e1765 - main
[INFO] [stderr]     33:     0x7f3edae42d90 - <unknown>
[INFO] [stderr]     34:     0x7f3edae42e40 - __libc_start_main
[INFO] [stderr]     35:     0x55f5265d0c55 - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "bd78edd29ce7f3351cba41943a53da863b5c71595e76a1817376c68378f00ea6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd78edd29ce7f3351cba41943a53da863b5c71595e76a1817376c68378f00ea6", kill_on_drop: false }`
[INFO] [stdout] bd78edd29ce7f3351cba41943a53da863b5c71595e76a1817376c68378f00ea6
