[INFO] cloning repository https://github.com/matthewproskils/prate
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/matthewproskils/prate" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthewproskils%2Fprate", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthewproskils%2Fprate'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 759bb5d7c55c7ed83afdb7f9ba24836cc2fa1067
[INFO] building matthewproskils/prate against try#58b1b3c5342a414c161338871f8004258ccef2a7 for pr-149937
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthewproskils%2Fprate" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/matthewproskils/prate
[INFO] finished tweaking git repo https://github.com/matthewproskils/prate
[INFO] tweaked toml for git repo https://github.com/matthewproskils/prate written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/matthewproskils/prate on toolchain 58b1b3c5342a414c161338871f8004258ccef2a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+58b1b3c5342a414c161338871f8004258ccef2a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/matthewproskils/prate 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" "+58b1b3c5342a414c161338871f8004258ccef2a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crossbeam-utils v0.7.0
[INFO] [stderr]   Downloaded rayon-core v1.6.1
[INFO] [stderr]   Downloaded collider v0.3.1
[INFO] [stderr]   Downloaded num-traits v0.2.10
[INFO] [stderr]   Downloaded rayon v1.2.1
[INFO] [stderr]   Downloaded khronos_api v2.2.0
[INFO] [stderr]   Downloaded gif v0.9.2
[INFO] [stderr]   Downloaded xml-rs v0.7.0
[INFO] [stderr]   Downloaded gl v0.6.5
[INFO] [stderr]   Downloaded gate_build v0.6.3
[INFO] [stderr]   Downloaded gate v0.6.3
[INFO] [stderr]   Downloaded inflate v0.2.0
[INFO] [stderr]   Downloaded sdl2 v0.29.1
[INFO] [stderr]   Downloaded hermit-abi v0.1.5
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.18
[INFO] [stderr]   Downloaded crossbeam-queue v0.2.0
[INFO] [stderr]   Downloaded crossbeam-epoch v0.8.0
[INFO] [stderr]   Downloaded png v0.9.0
[INFO] [stderr]   Downloaded gl_generator v0.6.1
[INFO] [stderr]   Downloaded image v0.15.0
[INFO] [stderr]   Downloaded sdl2-sys v0.27.3
[INFO] [stderr]   Downloaded crossbeam-deque v0.7.2
[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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+58b1b3c5342a414c161338871f8004258ccef2a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c93e7acfb66e90475f4a2fbf9d2d11ee6dfa779472591dc549413c1263e4e912
[INFO] running `Command { std: "docker" "start" "-a" "c93e7acfb66e90475f4a2fbf9d2d11ee6dfa779472591dc549413c1263e4e912", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c93e7acfb66e90475f4a2fbf9d2d11ee6dfa779472591dc549413c1263e4e912", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c93e7acfb66e90475f4a2fbf9d2d11ee6dfa779472591dc549413c1263e4e912", kill_on_drop: false }`
[INFO] [stdout] c93e7acfb66e90475f4a2fbf9d2d11ee6dfa779472591dc549413c1263e4e912
[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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+58b1b3c5342a414c161338871f8004258ccef2a7" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bfc69698c03feae98c8afb045646ca323639b219a6b25e26e9724ed41f9fd300
[INFO] running `Command { std: "docker" "start" "-a" "bfc69698c03feae98c8afb045646ca323639b219a6b25e26e9724ed41f9fd300", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling scopeguard v1.0.0
[INFO] [stderr]    Compiling rayon-core v1.6.1
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling khronos_api v2.2.0
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling adler32 v1.0.4
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling lzw v0.10.0
[INFO] [stderr]    Compiling color_quant v1.0.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]    Compiling inflate v0.2.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]    Compiling sdl2-sys v0.27.3
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling gif v0.9.2
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling collider v0.3.1
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling gl_generator v0.6.1
[INFO] [stderr]    Compiling num_cpus v1.11.1
[INFO] [stderr]    Compiling deflate v0.7.20
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling crossbeam-queue v0.2.0
[INFO] [stderr]    Compiling crossbeam-deque v0.7.2
[INFO] [stderr]    Compiling gl v0.6.5
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling rayon v1.2.1
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling png v0.9.0
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling sdl2 v0.29.1
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling jpeg-decoder v0.1.18
[INFO] [stderr]    Compiling image v0.15.0
[INFO] [stderr]    Compiling gate v0.6.3
[INFO] [stderr]    Compiling gate_build v0.6.3
[INFO] [stderr]    Compiling prate v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `prate 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/prate-d2b99f0f242c57ef/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (1117) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/gate_build-0.6.3/src/asset_packer.rs:50:40:
[INFO] [stderr]   failed to create assets directory: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x63b7af551d82 - std[42cfb3e4170ecfea]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                  at /rustc/58b1b3c5342a414c161338871f8004258ccef2a7/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x63b7af551d82 - std[42cfb3e4170ecfea]::backtrace_rs::backtrace::trace_unsynchronized::<std[42cfb3e4170ecfea]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                  at /rustc/58b1b3c5342a414c161338871f8004258ccef2a7/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x63b7af551d82 - std[42cfb3e4170ecfea]::sys::backtrace::_print_fmt
[INFO] [stderr]                                  at /rustc/58b1b3c5342a414c161338871f8004258ccef2a7/library/std/src/sys/backtrace.rs:68:9
[INFO] [stderr]      3:     0x63b7af551d82 - <<std[42cfb3e4170ecfea]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[3effd42582ceaf9c]::fmt::Display>::fmt
[INFO] [stderr]                                  at /rustc/58b1b3c5342a414c161338871f8004258ccef2a7/library/std/src/sys/backtrace.rs:38:26
[INFO] [stderr]      4:     0x63b7af565cf7 - <core[3effd42582ceaf9c]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                  at /rustc/58b1b3c5342a414c161338871f8004258ccef2a7/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x63b7af565cf7 - core[3effd42582ceaf9c]::fmt::write
[INFO] [stderr]      6:     0x63b7af556fa6 - std[42cfb3e4170ecfea]::io::default_write_fmt::<std[42cfb3e4170ecfea]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                  at /rustc/58b1b3c5342a414c161338871f8004258ccef2a7/library/std/src/io/mod.rs:614:11
[INFO] [stderr]      7:     0x63b7af556fa6 - <std[42cfb3e4170ecfea]::sys::stdio::unix::Stderr as std[42cfb3e4170ecfea]::io::Write>::write_fmt
[INFO] [stderr]                                  at /rustc/58b1b3c5342a414c161338871f8004258ccef2a7/library/std/src/io/mod.rs:1969:13
[INFO] [stderr]      8:     0x63b7af53919f - <std[42cfb3e4170ecfea]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                  at /rustc/58b1b3c5342a414c161338871f8004258ccef2a7/library/std/src/sys/backtrace.rs:41:9
[INFO] [stderr]      9:     0x63b7af53919f - std[42cfb3e4170ecfea]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                  at /rustc/58b1b3c5342a414c161338871f8004258ccef2a7/library/std/src/panicking.rs:292:27
[INFO] [stderr]     10:     0x63b7af54c2f1 - std[42cfb3e4170ecfea]::panicking::default_hook
[INFO] [stderr]                                  at /rustc/58b1b3c5342a414c161338871f8004258ccef2a7/library/std/src/panicking.rs:319:9
[INFO] [stderr]     11:     0x63b7af54c55b - std[42cfb3e4170ecfea]::panicking::panic_with_hook
[INFO] [stderr]                                  at /rustc/58b1b3c5342a414c161338871f8004258ccef2a7/library/std/src/panicking.rs:825:13
[INFO] [stderr]     12:     0x63b7af539258 - std[42cfb3e4170ecfea]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                  at /rustc/58b1b3c5342a414c161338871f8004258ccef2a7/library/std/src/panicking.rs:698:13
[INFO] [stderr]     13:     0x63b7af52e369 - std[42cfb3e4170ecfea]::sys::backtrace::__rust_end_short_backtrace::<std[42cfb3e4170ecfea]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                  at /rustc/58b1b3c5342a414c161338871f8004258ccef2a7/library/std/src/sys/backtrace.rs:176:18
[INFO] [stderr]     14:     0x63b7af539cbd - __rustc[3e12d0338d47dec3]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/58b1b3c5342a414c161338871f8004258ccef2a7/library/std/src/panicking.rs:689:5
[INFO] [stderr]     15:     0x63b7af5663ec - core[3effd42582ceaf9c]::panicking::panic_fmt
[INFO] [stderr]                                  at /rustc/58b1b3c5342a414c161338871f8004258ccef2a7/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x63b7af566132 - core[3effd42582ceaf9c]::result::unwrap_failed
[INFO] [stderr]                                  at /rustc/58b1b3c5342a414c161338871f8004258ccef2a7/library/core/src/result.rs:1867:5
[INFO] [stderr]     17:     0x63b7af4b0a60 - <core[3effd42582ceaf9c]::result::Result<(), std[42cfb3e4170ecfea]::io::error::Error>>::expect
[INFO] [stderr]     18:     0x63b7af25b80d - <gate_build[4bea939d98bb4fb8]::asset_packer::AssetPacker>::new
[INFO] [stderr]     19:     0x63b7af242806 - build_script_build[5eea845ca45d1583]::main
[INFO] [stderr]     20:     0x63b7af242dd3 - <fn() as core[3effd42582ceaf9c]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     21:     0x63b7af2424f6 - std[42cfb3e4170ecfea]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     22:     0x63b7af242509 - std[42cfb3e4170ecfea]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     23:     0x63b7af54b4a6 - <&dyn core[3effd42582ceaf9c]::ops::function::Fn<(), Output = i32> + core[3effd42582ceaf9c]::panic::unwind_safe::RefUnwindSafe + core[3effd42582ceaf9c]::marker::Sync as core[3effd42582ceaf9c]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                  at /rustc/58b1b3c5342a414c161338871f8004258ccef2a7/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     24:     0x63b7af54b4a6 - std[42cfb3e4170ecfea]::panicking::catch_unwind::do_call::<&dyn core[3effd42582ceaf9c]::ops::function::Fn<(), Output = i32> + core[3effd42582ceaf9c]::panic::unwind_safe::RefUnwindSafe + core[3effd42582ceaf9c]::marker::Sync, i32>
[INFO] [stderr]                                  at /rustc/58b1b3c5342a414c161338871f8004258ccef2a7/library/std/src/panicking.rs:581:40
[INFO] [stderr]     25:     0x63b7af54b4a6 - std[42cfb3e4170ecfea]::panicking::catch_unwind::<i32, &dyn core[3effd42582ceaf9c]::ops::function::Fn<(), Output = i32> + core[3effd42582ceaf9c]::panic::unwind_safe::RefUnwindSafe + core[3effd42582ceaf9c]::marker::Sync>
[INFO] [stderr]                                  at /rustc/58b1b3c5342a414c161338871f8004258ccef2a7/library/std/src/panicking.rs:544:19
[INFO] [stderr]     26:     0x63b7af54b4a6 - std[42cfb3e4170ecfea]::panic::catch_unwind::<&dyn core[3effd42582ceaf9c]::ops::function::Fn<(), Output = i32> + core[3effd42582ceaf9c]::panic::unwind_safe::RefUnwindSafe + core[3effd42582ceaf9c]::marker::Sync, i32>
[INFO] [stderr]                                  at /rustc/58b1b3c5342a414c161338871f8004258ccef2a7/library/std/src/panic.rs:359:14
[INFO] [stderr]     27:     0x63b7af54b4a6 - std[42cfb3e4170ecfea]::rt::lang_start_internal::{closure#0}
[INFO] [stderr]                                  at /rustc/58b1b3c5342a414c161338871f8004258ccef2a7/library/std/src/rt.rs:175:24
[INFO] [stderr]     28:     0x63b7af54b4a6 - std[42cfb3e4170ecfea]::panicking::catch_unwind::do_call::<std[42cfb3e4170ecfea]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/58b1b3c5342a414c161338871f8004258ccef2a7/library/std/src/panicking.rs:581:40
[INFO] [stderr]     29:     0x63b7af54b4a6 - std[42cfb3e4170ecfea]::panicking::catch_unwind::<isize, std[42cfb3e4170ecfea]::rt::lang_start_internal::{closure#0}>
[INFO] [stderr]                                  at /rustc/58b1b3c5342a414c161338871f8004258ccef2a7/library/std/src/panicking.rs:544:19
[INFO] [stderr]     30:     0x63b7af54b4a6 - std[42cfb3e4170ecfea]::panic::catch_unwind::<std[42cfb3e4170ecfea]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/58b1b3c5342a414c161338871f8004258ccef2a7/library/std/src/panic.rs:359:14
[INFO] [stderr]     31:     0x63b7af54b4a6 - std[42cfb3e4170ecfea]::rt::lang_start_internal
[INFO] [stderr]                                  at /rustc/58b1b3c5342a414c161338871f8004258ccef2a7/library/std/src/rt.rs:171:5
[INFO] [stderr]     32:     0x63b7af2423d1 - std[42cfb3e4170ecfea]::rt::lang_start::<()>
[INFO] [stderr]     33:     0x63b7af242e35 - main
[INFO] [stderr]     34:     0x75be43c561ca - <unknown>
[INFO] [stderr]     35:     0x75be43c5628b - __libc_start_main
[INFO] [stderr]     36:     0x63b7af2421f5 - _start
[INFO] [stderr]     37:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "bfc69698c03feae98c8afb045646ca323639b219a6b25e26e9724ed41f9fd300", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfc69698c03feae98c8afb045646ca323639b219a6b25e26e9724ed41f9fd300", kill_on_drop: false }`
[INFO] [stdout] bfc69698c03feae98c8afb045646ca323639b219a6b25e26e9724ed41f9fd300