[INFO] fetching crate ruukh 0.0.3...
[INFO] checking ruukh-0.0.3 against try#0004f98fdd309b1940390200ae28913f7fbd736f for pr-101478
[INFO] extracting crate ruukh 0.0.3 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate ruukh 0.0.3 on toolchain 0004f98fdd309b1940390200ae28913f7fbd736f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0004f98fdd309b1940390200ae28913f7fbd736f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7/source/.cargo/config
[INFO] removed /workspace/builds/worker-7/source/rust-toolchain
[INFO] started tweaking crates.io crate ruukh 0.0.3
[INFO] finished tweaking crates.io crate ruukh 0.0.3
[INFO] tweaked toml for crates.io crate ruukh 0.0.3 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0004f98fdd309b1940390200ae28913f7fbd736f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0004f98fdd309b1940390200ae28913f7fbd736f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+0004f98fdd309b1940390200ae28913f7fbd736f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5ef921151c3ba2c3ea0e0d354bccdccaac799b2e2005b9a679f42ba81b8e76fd
[INFO] running `Command { std: "docker" "start" "-a" "5ef921151c3ba2c3ea0e0d354bccdccaac799b2e2005b9a679f42ba81b8e76fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5ef921151c3ba2c3ea0e0d354bccdccaac799b2e2005b9a679f42ba81b8e76fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ef921151c3ba2c3ea0e0d354bccdccaac799b2e2005b9a679f42ba81b8e76fd", kill_on_drop: false }`
[INFO] [stdout] 5ef921151c3ba2c3ea0e0d354bccdccaac799b2e2005b9a679f42ba81b8e76fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+0004f98fdd309b1940390200ae28913f7fbd736f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 906baaed384f365820f6401376e1ce5d0e9f1e318b300b71ff4ed4db205f92be
[INFO] running `Command { std: "docker" "start" "-a" "906baaed384f365820f6401376e1ce5d0e9f1e318b300b71ff4ed4db205f92be", kill_on_drop: false }`
[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 wasm-bindgen-shared v0.2.82
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling once_cell v1.14.0
[INFO] [stderr]    Compiling bumpalo v3.11.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling wasm-bindgen v0.2.82
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr] error: failed to run custom build command for `indexmap v1.9.1`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/indexmap-f1762b85cd69017e/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Error { kind: Other("could not execute rustc") }', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/autocfg-1.1.0/src/lib.rs:128:20
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55bb68ca8540 - std::backtrace_rs::backtrace::libunwind::trace::h68f4821065dfec0e
[INFO] [stderr]                                  at /rustc/0004f98fdd309b1940390200ae28913f7fbd736f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      1:     0x55bb68ca8540 - std::backtrace_rs::backtrace::trace_unsynchronized::ha303f16c3a318cd7
[INFO] [stderr]                                  at /rustc/0004f98fdd309b1940390200ae28913f7fbd736f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55bb68ca8540 - std::sys_common::backtrace::_print_fmt::h8dfadbff5821254c
[INFO] [stderr]                                  at /rustc/0004f98fdd309b1940390200ae28913f7fbd736f/library/std/src/sys_common/backtrace.rs:66:5
[INFO] [stderr]      3:     0x55bb68ca8540 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::heefb934e22801888
[INFO] [stderr]                                  at /rustc/0004f98fdd309b1940390200ae28913f7fbd736f/library/std/src/sys_common/backtrace.rs:45:22
[INFO] [stderr]      4:     0x55bb68cc5ade - core::fmt::write::h01342d4892384d76
[INFO] [stderr]                                  at /rustc/0004f98fdd309b1940390200ae28913f7fbd736f/library/core/src/fmt/mod.rs:1202:17
[INFO] [stderr]      5:     0x55bb68ca56d5 - std::io::Write::write_fmt::hb26080656bb88960
[INFO] [stderr]                                  at /rustc/0004f98fdd309b1940390200ae28913f7fbd736f/library/std/src/io/mod.rs:1679:15
[INFO] [stderr]      6:     0x55bb68ca9c33 - std::sys_common::backtrace::_print::hb4fd46f8e2d1a65e
[INFO] [stderr]                                  at /rustc/0004f98fdd309b1940390200ae28913f7fbd736f/library/std/src/sys_common/backtrace.rs:48:5
[INFO] [stderr]      7:     0x55bb68ca9c33 - std::sys_common::backtrace::print::h2a76f58572fab0a6
[INFO] [stderr]                                  at /rustc/0004f98fdd309b1940390200ae28913f7fbd736f/library/std/src/sys_common/backtrace.rs:35:9
[INFO] [stderr]      8:     0x55bb68ca9c33 - std::panicking::default_hook::{{closure}}::hb9a3f4df8037487b
[INFO] [stderr]                                  at /rustc/0004f98fdd309b1940390200ae28913f7fbd736f/library/std/src/panicking.rs:295:22
[INFO] [stderr]      9:     0x55bb68ca991f - std::panicking::default_hook::h979ac2eb56748e7e
[INFO] [stderr]                                  at /rustc/0004f98fdd309b1940390200ae28913f7fbd736f/library/std/src/panicking.rs:314:9
[INFO] [stderr]     10:     0x55bb68caa2da - std::panicking::rust_panic_with_hook::h2b045de94a6bed6e
[INFO] [stderr]                                  at /rustc/0004f98fdd309b1940390200ae28913f7fbd736f/library/std/src/panicking.rs:698:17
[INFO] [stderr]     11:     0x55bb68caa1d7 - std::panicking::begin_panic_handler::{{closure}}::hd16628f187ef8977
[INFO] [stderr]                                  at /rustc/0004f98fdd309b1940390200ae28913f7fbd736f/library/std/src/panicking.rs:588:13
[INFO] [stderr]     12:     0x55bb68ca8a1c - std::sys_common::backtrace::__rust_end_short_backtrace::hbed5d913924b6f8d
[INFO] [stderr]                                  at /rustc/0004f98fdd309b1940390200ae28913f7fbd736f/library/std/src/sys_common/backtrace.rs:138:18
[INFO] [stderr]     13:     0x55bb68ca9ef2 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/0004f98fdd309b1940390200ae28913f7fbd736f/library/std/src/panicking.rs:584:5
[INFO] [stderr]     14:     0x55bb68c74a93 - core::panicking::panic_fmt::h2c4e0212f9f8bf54
[INFO] [stderr]                                  at /rustc/0004f98fdd309b1940390200ae28913f7fbd736f/library/core/src/panicking.rs:142:14
[INFO] [stderr]     15:     0x55bb68c74b23 - core::result::unwrap_failed::h2aaf2914d0b69fa5
[INFO] [stderr]                                  at /rustc/0004f98fdd309b1940390200ae28913f7fbd736f/library/core/src/result.rs:1785:5
[INFO] [stderr]     16:     0x55bb68c79073 - core::result::Result<T,E>::unwrap::h23d8044f35f1b0db
[INFO] [stderr]                                  at /rustc/0004f98fdd309b1940390200ae28913f7fbd736f/library/core/src/result.rs:1107:23
[INFO] [stderr]     17:     0x55bb68c75dc1 - autocfg::new::ha9e72f5f9a615826
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/autocfg-1.1.0/src/lib.rs:128:5
[INFO] [stderr]     18:     0x55bb68c74d6f - build_script_build::main::h282bb5378534bef4
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/indexmap-1.9.1/build.rs:5:17
[INFO] [stderr]     19:     0x55bb68c74fab - core::ops::function::FnOnce::call_once::ha148a827200c06ff
[INFO] [stderr]                                  at /rustc/0004f98fdd309b1940390200ae28913f7fbd736f/library/core/src/ops/function.rs:248:5
[INFO] [stderr]     20:     0x55bb68c74e8e - std::sys_common::backtrace::__rust_begin_short_backtrace::h55ccdea6eb23fd4d
[INFO] [stderr]                                  at /rustc/0004f98fdd309b1940390200ae28913f7fbd736f/library/std/src/sys_common/backtrace.rs:122:18
[INFO] [stderr]     21:     0x55bb68c74f11 - std::rt::lang_start::{{closure}}::h56d71e013edde245
[INFO] [stderr]                                  at /rustc/0004f98fdd309b1940390200ae28913f7fbd736f/library/std/src/rt.rs:166:18
[INFO] [stderr]     22:     0x55bb68ca29bf - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h6c98c92d9c546c1a
[INFO] [stderr]                                  at /rustc/0004f98fdd309b1940390200ae28913f7fbd736f/library/core/src/ops/function.rs:280:13
[INFO] [stderr]     23:     0x55bb68ca29bf - std::panicking::try::do_call::h76afc2029c2e1d32
[INFO] [stderr]                                  at /rustc/0004f98fdd309b1940390200ae28913f7fbd736f/library/std/src/panicking.rs:492:40
[INFO] [stderr]     24:     0x55bb68ca29bf - std::panicking::try::h74dc6b18046089e3
[INFO] [stderr]                                  at /rustc/0004f98fdd309b1940390200ae28913f7fbd736f/library/std/src/panicking.rs:456:19
[INFO] [stderr]     25:     0x55bb68ca29bf - std::panic::catch_unwind::h6a1254ff8094a160
[INFO] [stderr]                                  at /rustc/0004f98fdd309b1940390200ae28913f7fbd736f/library/std/src/panic.rs:137:14
[INFO] [stderr]     26:     0x55bb68ca29bf - std::rt::lang_start_internal::{{closure}}::h5219e028e3b4e1e8
[INFO] [stderr]                                  at /rustc/0004f98fdd309b1940390200ae28913f7fbd736f/library/std/src/rt.rs:148:48
[INFO] [stderr]     27:     0x55bb68ca29bf - std::panicking::try::do_call::he19154737ff80739
[INFO] [stderr]                                  at /rustc/0004f98fdd309b1940390200ae28913f7fbd736f/library/std/src/panicking.rs:492:40
[INFO] [stderr]     28:     0x55bb68ca29bf - std::panicking::try::h3d6d936260435153
[INFO] [stderr]                                  at /rustc/0004f98fdd309b1940390200ae28913f7fbd736f/library/std/src/panicking.rs:456:19
[INFO] [stderr]     29:     0x55bb68ca29bf - std::panic::catch_unwind::hd4cb540b69d540e3
[INFO] [stderr]                                  at /rustc/0004f98fdd309b1940390200ae28913f7fbd736f/library/std/src/panic.rs:137:14
[INFO] [stderr]     30:     0x55bb68ca29bf - std::rt::lang_start_internal::h80f5e86d2adcc33d
[INFO] [stderr]                                  at /rustc/0004f98fdd309b1940390200ae28913f7fbd736f/library/std/src/rt.rs:148:20
[INFO] [stderr]     31:     0x55bb68c74eea - std::rt::lang_start::h8c526a1c08d976f3
[INFO] [stderr]                                  at /rustc/0004f98fdd309b1940390200ae28913f7fbd736f/library/std/src/rt.rs:165:17
[INFO] [stderr]     32:     0x55bb68c74e71 - main
[INFO] [stderr]     33:     0x7fb6691b9083 - __libc_start_main
[INFO] [stderr]     34:     0x55bb68c74c6e - _start
[INFO] [stderr]     35:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "906baaed384f365820f6401376e1ce5d0e9f1e318b300b71ff4ed4db205f92be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "906baaed384f365820f6401376e1ce5d0e9f1e318b300b71ff4ed4db205f92be", kill_on_drop: false }`
[INFO] [stdout] 906baaed384f365820f6401376e1ce5d0e9f1e318b300b71ff4ed4db205f92be