[INFO] cloning repository https://github.com/JYudelson1/superposition
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JYudelson1/superposition" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJYudelson1%2Fsuperposition", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJYudelson1%2Fsuperposition'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2b4cc12c0899664916d8aaeb6c752689cc286879
[INFO] checking JYudelson1/superposition/2b4cc12c0899664916d8aaeb6c752689cc286879 against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJYudelson1%2Fsuperposition" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JYudelson1/superposition on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JYudelson1/superposition
[INFO] finished tweaking git repo https://github.com/JYudelson1/superposition
[INFO] tweaked toml for git repo https://github.com/JYudelson1/superposition written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/JYudelson1/superposition 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" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dfdx v0.9.0
[INFO] [stderr]   Downloaded lazy-pbar v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4183677858f6b302e11556883232f652b7a6284963f2aee142bf65e93309eee3
[INFO] running `Command { std: "docker" "start" "-a" "4183677858f6b302e11556883232f652b7a6284963f2aee142bf65e93309eee3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4183677858f6b302e11556883232f652b7a6284963f2aee142bf65e93309eee3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4183677858f6b302e11556883232f652b7a6284963f2aee142bf65e93309eee3", kill_on_drop: false }`
[INFO] [stdout] 4183677858f6b302e11556883232f652b7a6284963f2aee142bf65e93309eee3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d8f8c318dbe14d5dc188b39761186b1e8607a4e558d5abe66dd7d3cc5b4dc57a
[INFO] running `Command { std: "docker" "start" "-a" "d8f8c318dbe14d5dc188b39761186b1e8607a4e558d5abe66dd7d3cc5b4dc57a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]    Compiling semver v1.0.14
[INFO] [stderr]     Checking cpufeatures v0.2.5
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling zstd-safe v4.1.6+zstd.1.5.2
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling libm v0.2.5
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking base64ct v1.0.1
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking miniz_oxide v0.5.4
[INFO] [stderr]    Compiling jobserver v0.1.24
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking num_threads v0.1.6
[INFO] [stderr]    Compiling time-macros v0.2.4
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking password-hash v0.3.2
[INFO] [stderr]     Checking once_cell v1.14.0
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking console v0.15.1
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.3
[INFO] [stderr]     Checking cipher v0.3.0
[INFO] [stderr]    Compiling dfdx v0.9.0
[INFO] [stderr]     Checking digest v0.10.5
[INFO] [stderr]    Compiling zstd-sys v1.6.3+zstd.1.5.2
[INFO] [stderr]    Compiling bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]     Checking aes v0.7.5
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking sha2 v0.10.6
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking sha1 v0.10.5
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking number_prefix v0.4.0
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking pbkdf2 v0.10.1
[INFO] [stderr]     Checking matrixmultiply v0.3.2
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking time v0.3.14
[INFO] [stderr]     Checking indicatif v0.16.2
[INFO] [stderr]     Checking lazy-pbar v0.2.0
[INFO] [stderr]     Checking bzip2 v0.4.3
[INFO] [stderr]    Compiling toml v0.5.9
[INFO] [stderr]    Compiling superposition v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `superposition 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/superposition-207ce7e06f5a2552/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at build.rs:57:42:
[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:     0x5db392a8373a - std::backtrace_rs::backtrace::libunwind::trace::h97abfd8a85887826
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stderr]      1:     0x5db392a8373a - std::backtrace_rs::backtrace::trace_unsynchronized::h3fe33c3e2ffb6416
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x5db392a8373a - std::sys::backtrace::_print_fmt::hdf29e1ca2ba4cbbc
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x5db392a8373a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h731c3e1b756ff019
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x5db392aa4efb - core::fmt::rt::Argument::fmt::hdfecaf84742c5a76
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/core/src/fmt/rt.rs:177:76
[INFO] [stderr]      5:     0x5db392aa4efb - core::fmt::write::h9c97613a183100ea
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/core/src/fmt/mod.rs:1186:21
[INFO] [stderr]      6:     0x5db392a80dc3 - std::io::Write::write_fmt::h7288d7c7dce2722e
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/io/mod.rs:1823:15
[INFO] [stderr]      7:     0x5db392a83582 - std::sys::backtrace::BacktraceLock::print::h2bc6f048c13121f8
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      8:     0x5db392a84847 - std::panicking::default_hook::{{closure}}::hde92e91975a101c0
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/panicking.rs:268:22
[INFO] [stderr]      9:     0x5db392a84676 - std::panicking::default_hook::hd8d6e2273bfc5edc
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/panicking.rs:295:9
[INFO] [stderr]     10:     0x5db392a84e47 - std::panicking::rust_panic_with_hook::hb332f821833efd3b
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/panicking.rs:801:13
[INFO] [stderr]     11:     0x5db392a84ce7 - std::panicking::begin_panic_handler::{{closure}}::h00065c7fd19dfc55
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/panicking.rs:674:13
[INFO] [stderr]     12:     0x5db392a83c19 - std::sys::backtrace::__rust_end_short_backtrace::h10e475bd14bb8cb7
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/sys/backtrace.rs:170:18
[INFO] [stderr]     13:     0x5db392a84974 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/panicking.rs:665:5
[INFO] [stderr]     14:     0x5db392aa3983 - core::panicking::panic_fmt::h59e161f9c51d6f0e
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/core/src/panicking.rs:74:14
[INFO] [stderr]     15:     0x5db392aa3e06 - core::result::unwrap_failed::h54376d3d4b8f04d2
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/core/src/result.rs:1689:5
[INFO] [stderr]     16:     0x5db392a1b8b8 - build_script_build::main::h4651f67df77f5e15
[INFO] [stderr]     17:     0x5db392a18ea3 - core::ops::function::FnOnce::call_once::h68928ded4dce1b7e
[INFO] [stderr]     18:     0x5db392a18b16 - std::sys::backtrace::__rust_begin_short_backtrace::hec8286b43473d35b
[INFO] [stderr]     19:     0x5db392a18ae9 - std::rt::lang_start::{{closure}}::hd499925ec825a286
[INFO] [stderr]     20:     0x5db392a7de80 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h00708edcd5cb0bf9
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/core/src/ops/function.rs:284:13
[INFO] [stderr]     21:     0x5db392a7de80 - std::panicking::try::do_call::h3211acb5ef596e26
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/panicking.rs:557:40
[INFO] [stderr]     22:     0x5db392a7de80 - std::panicking::try::hfc77046d1a78b97f
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/panicking.rs:520:19
[INFO] [stderr]     23:     0x5db392a7de80 - std::panic::catch_unwind::h8cc6f9c887e41bb5
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/panic.rs:348:14
[INFO] [stderr]     24:     0x5db392a7de80 - std::rt::lang_start_internal::{{closure}}::h1ae7a528cb090b94
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/rt.rs:143:48
[INFO] [stderr]     25:     0x5db392a7de80 - std::panicking::try::do_call::h7b341eaacca88c96
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/panicking.rs:557:40
[INFO] [stderr]     26:     0x5db392a7de80 - std::panicking::try::h2190145387d00b24
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/panicking.rs:520:19
[INFO] [stderr]     27:     0x5db392a7de80 - std::panic::catch_unwind::h39d0834a21ce2b28
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/panic.rs:348:14
[INFO] [stderr]     28:     0x5db392a7de80 - std::rt::lang_start_internal::hf1cb939424e8449c
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/rt.rs:143:20
[INFO] [stderr]     29:     0x5db392a18ac7 - std::rt::lang_start::hc25c2c29f196abce
[INFO] [stderr]     30:     0x5db392a1b995 - main
[INFO] [stderr]     31:     0x7cf35831ed90 - <unknown>
[INFO] [stderr]     32:     0x7cf35831ee40 - __libc_start_main
[INFO] [stderr]     33:     0x5db392a18095 - _start
[INFO] [stderr]     34:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "d8f8c318dbe14d5dc188b39761186b1e8607a4e558d5abe66dd7d3cc5b4dc57a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8f8c318dbe14d5dc188b39761186b1e8607a4e558d5abe66dd7d3cc5b4dc57a", kill_on_drop: false }`
[INFO] [stdout] d8f8c318dbe14d5dc188b39761186b1e8607a4e558d5abe66dd7d3cc5b4dc57a