[INFO] cloning repository https://github.com/archshift/accion
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/archshift/accion" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farchshift%2Faccion", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farchshift%2Faccion'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 58303c21c1efc4e7c9fd4764ff141788ea38d819
[INFO] documenting archshift/accion against 1.69.0 for beta-1.70-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farchshift%2Faccion" "/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/archshift/accion on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/archshift/accion
[INFO] finished tweaking git repo https://github.com/archshift/accion
[INFO] tweaked toml for git repo https://github.com/archshift/accion written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/archshift/accion 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" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/archshift/dynstack`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded derive-newtype v0.2.3
[INFO] [stderr]   Downloaded iced-x86 v1.9.1
[INFO] [stderr]   Downloaded disjoint-sets v0.4.2
[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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3ada0efd5cd4932f43abbb0d69a79fe95ff1755ad5cdeaab43dcf1990fb49dff
[INFO] running `Command { std: "docker" "start" "-a" "3ada0efd5cd4932f43abbb0d69a79fe95ff1755ad5cdeaab43dcf1990fb49dff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ada0efd5cd4932f43abbb0d69a79fe95ff1755ad5cdeaab43dcf1990fb49dff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ada0efd5cd4932f43abbb0d69a79fe95ff1755ad5cdeaab43dcf1990fb49dff", kill_on_drop: false }`
[INFO] [stdout] 3ada0efd5cd4932f43abbb0d69a79fe95ff1755ad5cdeaab43dcf1990fb49dff
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1819d88c7a6bae278243c2ab90ab68e57ac8dca400e24e52868a733296bdd8f9
[INFO] running `Command { std: "docker" "start" "-a" "1819d88c7a6bae278243c2ab90ab68e57ac8dca400e24e52868a733296bdd8f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling cbindgen v0.15.0
[INFO] [stderr]    Compiling iced-x86 v1.9.1
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling cc v1.0.61
[INFO] [stderr]    Compiling dynstack v0.4.0 (https://github.com/archshift/dynstack?rev=7bba8e808b907c6a0d70e648fb0bc5672cf87c22#7bba8e80)
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]     Checking static_assertions v0.3.4
[INFO] [stderr]     Checking num-traits v0.2.14
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking disjoint-sets v0.4.2
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling derive-newtype v0.2.3
[INFO] [stderr]    Compiling toml v0.5.7
[INFO] [stderr]    Compiling accion v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `accion 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/accion-737ab2edd68cdf13/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'Could not spawn flex!: Os { code: 2, kind: NotFound, message: "No such file or directory" }', build.rs:47:10
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5608e10536ca - std::backtrace_rs::backtrace::libunwind::trace::ha9053a9a07ca49cb
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stderr]      1:     0x5608e10536ca - std::backtrace_rs::backtrace::trace_unsynchronized::h9c2852a457ad564e
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x5608e10536ca - std::sys_common::backtrace::_print_fmt::h457936fbfaa0070f
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:65:5
[INFO] [stderr]      3:     0x5608e10536ca - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h5779d7bf7f70cb0c
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]      4:     0x5608e107b13e - core::fmt::write::h5a4baaff1bcd3eb5
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/fmt/mod.rs:1232:17
[INFO] [stderr]      5:     0x5608e1050255 - std::io::Write::write_fmt::h4bc1f301cb9e9cce
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/io/mod.rs:1684:15
[INFO] [stderr]      6:     0x5608e1053495 - std::sys_common::backtrace::_print::h5fcdc36060f177e8
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]      7:     0x5608e1053495 - std::sys_common::backtrace::print::h54ca9458b876c8bf
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]      8:     0x5608e10551bf - std::panicking::default_hook::{{closure}}::hbe471161c7664ed6
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:271:22
[INFO] [stderr]      9:     0x5608e1054efb - std::panicking::default_hook::ha3500da57aa4ac4f
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:290:9
[INFO] [stderr]     10:     0x5608e1055768 - std::panicking::rust_panic_with_hook::h50c09d000dc561d2
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:692:13
[INFO] [stderr]     11:     0x5608e1055669 - std::panicking::begin_panic_handler::{{closure}}::h9e2b2176e00e0d9c
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:583:13
[INFO] [stderr]     12:     0x5608e1053b36 - std::sys_common::backtrace::__rust_end_short_backtrace::h5739b8e512c09d02
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:150:18
[INFO] [stderr]     13:     0x5608e1055372 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:579:5
[INFO] [stderr]     14:     0x5608e0c6daa3 - core::panicking::panic_fmt::hf33a1475b4dc5c3e
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/panicking.rs:64:14
[INFO] [stderr]     15:     0x5608e0c6df53 - core::result::unwrap_failed::hdff5465d74574b44
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/result.rs:1750:5
[INFO] [stderr]     16:     0x5608e0c8690b - core::result::Result<T,E>::expect::h0f3f91bcb295a1ae
[INFO] [stderr]     17:     0x5608e0c87adc - build_script_build::main::he5908ca9e2bbcecc
[INFO] [stderr]     18:     0x5608e0c8bc93 - core::ops::function::FnOnce::call_once::h00aa667a27b741a5
[INFO] [stderr]     19:     0x5608e0cadd59 - std::sys_common::backtrace::__rust_begin_short_backtrace::ha8133a073cb5c6d3
[INFO] [stderr]     20:     0x5608e0c867b9 - std::rt::lang_start::{{closure}}::h7ca210f738c5105e
[INFO] [stderr]     21:     0x5608e104becc - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hd6efcd3bec896f2c
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/ops/function.rs:287:13
[INFO] [stderr]     22:     0x5608e104becc - std::panicking::try::do_call::hce04e543bb1f4cbb
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:487:40
[INFO] [stderr]     23:     0x5608e104becc - std::panicking::try::h3342dd4e1f680968
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:451:19
[INFO] [stderr]     24:     0x5608e104becc - std::panic::catch_unwind::h148ce1e59ac0cee7
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panic.rs:140:14
[INFO] [stderr]     25:     0x5608e104becc - std::rt::lang_start_internal::{{closure}}::h25f9dda2057a67fe
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/rt.rs:148:48
[INFO] [stderr]     26:     0x5608e104becc - std::panicking::try::do_call::h7caaaeaf9401650b
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:487:40
[INFO] [stderr]     27:     0x5608e104becc - std::panicking::try::he7d15285746cbbc2
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:451:19
[INFO] [stderr]     28:     0x5608e104becc - std::panic::catch_unwind::h89fb4f50c0301fe0
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panic.rs:140:14
[INFO] [stderr]     29:     0x5608e104becc - std::rt::lang_start_internal::h078acd489417d3c1
[INFO] [stderr]                                  at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/rt.rs:148:20
[INFO] [stderr]     30:     0x5608e0c86797 - std::rt::lang_start::hf5ca80f487982a8a
[INFO] [stderr]     31:     0x5608e0c883e5 - main
[INFO] [stderr]     32:     0x7fd3a368cd90 - <unknown>
[INFO] [stderr]     33:     0x7fd3a368ce40 - __libc_start_main
[INFO] [stderr]     34:     0x5608e0c6e135 - _start
[INFO] [stderr]     35:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "1819d88c7a6bae278243c2ab90ab68e57ac8dca400e24e52868a733296bdd8f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1819d88c7a6bae278243c2ab90ab68e57ac8dca400e24e52868a733296bdd8f9", kill_on_drop: false }`
[INFO] [stdout] 1819d88c7a6bae278243c2ab90ab68e57ac8dca400e24e52868a733296bdd8f9
