[INFO] fetching crate cargo-cats 0.1.13...
[INFO] checking cargo-cats-0.1.13 against master#158f00a1c5175648af6f6099b075f78d1d014a28 for pr-121251
[INFO] extracting crate cargo-cats 0.1.13 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate cargo-cats 0.1.13 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 cargo-cats 0.1.13
[INFO] finished tweaking crates.io crate cargo-cats 0.1.13
[INFO] tweaked toml for crates.io crate cargo-cats 0.1.13 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate cargo-cats 0.1.13 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-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] ab23749c67197935d1a5e983e3a51257cf2d6570e48b4b9499abed47ecb643a5
[INFO] running `Command { std: "docker" "start" "-a" "ab23749c67197935d1a5e983e3a51257cf2d6570e48b4b9499abed47ecb643a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab23749c67197935d1a5e983e3a51257cf2d6570e48b4b9499abed47ecb643a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab23749c67197935d1a5e983e3a51257cf2d6570e48b4b9499abed47ecb643a5", kill_on_drop: false }`
[INFO] [stdout] ab23749c67197935d1a5e983e3a51257cf2d6570e48b4b9499abed47ecb643a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] ab9f9348b853ca6c187c799de0d958a8e98890461770df3f6d6a1fca5b53341d
[INFO] running `Command { std: "docker" "start" "-a" "ab9f9348b853ca6c187c799de0d958a8e98890461770df3f6d6a1fca5b53341d", kill_on_drop: false }`
[INFO] [stderr]    Compiling cargo-cats v0.1.13 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `cargo-cats v0.1.13 (/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/cargo-cats-cdfc0bc27715e955/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at build.rs:18:9:
[INFO] [stderr]   Unexpected value for rustc toolchain
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55e970f0bd96 - 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:     0x55e970f0bd96 - 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:     0x55e970f0bd96 - std::sys_common::backtrace::_print_fmt::hfb825d5b45347dc7
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stderr]      3:     0x55e970f0bd96 - <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:     0x55e970f2ccbc - core::fmt::rt::Argument::fmt::h6780ff77d2596c7e
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/core/src/fmt/rt.rs:142:9
[INFO] [stderr]      5:     0x55e970f2ccbc - core::fmt::write::heeb505bfc1cf113c
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/core/src/fmt/mod.rs:1120:17
[INFO] [stderr]      6:     0x55e970f09b6f - std::io::Write::write_fmt::h06956d82941b8ab5
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/std/src/io/mod.rs:1846:15
[INFO] [stderr]      7:     0x55e970f0bb44 - std::sys_common::backtrace::_print::h5a2ad20f98de74d9
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]      8:     0x55e970f0bb44 - std::sys_common::backtrace::print::hb7c2e18145b4bc56
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]      9:     0x55e970f0d03b - std::panicking::default_hook::{{closure}}::h2c7ccc2f6c33079c
[INFO] [stderr]     10:     0x55e970f0cd89 - std::panicking::default_hook::h6ae4b6e844fd8bea
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/std/src/panicking.rs:292:9
[INFO] [stderr]     11:     0x55e970f0d4dd - std::panicking::rust_panic_with_hook::h1591957e3d275a90
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/std/src/panicking.rs:781:13
[INFO] [stderr]     12:     0x55e970f0d379 - std::panicking::begin_panic_handler::{{closure}}::h384c4e87a0cf88d5
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/std/src/panicking.rs:651:13
[INFO] [stderr]     13:     0x55e970f0c276 - 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:     0x55e970f0d0e4 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/std/src/panicking.rs:647:5
[INFO] [stderr]     15:     0x55e970ee9065 - core::panicking::panic_fmt::he1f2b784ca1ada33
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/core/src/panicking.rs:72:14
[INFO] [stderr]     16:     0x55e970eeccbd - build_script_build::main::hfee568fee40e84ef
[INFO] [stderr]     17:     0x55e970eea2f3 - core::ops::function::FnOnce::call_once::h568412f20924357f
[INFO] [stderr]     18:     0x55e970ee9af6 - std::sys_common::backtrace::__rust_begin_short_backtrace::hc999f8e52bab20b1
[INFO] [stderr]     19:     0x55e970ee9f69 - std::rt::lang_start::{{closure}}::hc120a1724c753495
[INFO] [stderr]     20:     0x55e970f06b53 - 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]     21:     0x55e970f06b53 - std::panicking::try::do_call::hb42eeca0b42872c6
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/std/src/panicking.rs:554:40
[INFO] [stderr]     22:     0x55e970f06b53 - std::panicking::try::hab05ddea26ba6a87
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/std/src/panicking.rs:518:19
[INFO] [stderr]     23:     0x55e970f06b53 - std::panic::catch_unwind::h4e316694ef9f1d75
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/std/src/panic.rs:142:14
[INFO] [stderr]     24:     0x55e970f06b53 - std::rt::lang_start_internal::{{closure}}::h8eaa848bcdf1c638
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/std/src/rt.rs:148:48
[INFO] [stderr]     25:     0x55e970f06b53 - std::panicking::try::do_call::h1b091a6d59c31bc8
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/std/src/panicking.rs:554:40
[INFO] [stderr]     26:     0x55e970f06b53 - std::panicking::try::h8d242ccb92fdc8f8
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/std/src/panicking.rs:518:19
[INFO] [stderr]     27:     0x55e970f06b53 - std::panic::catch_unwind::hec071b6367220669
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/std/src/panic.rs:142:14
[INFO] [stderr]     28:     0x55e970f06b53 - std::rt::lang_start_internal::hd0b9a1b14b917412
[INFO] [stderr]                                  at /rustc/158f00a1c5175648af6f6099b075f78d1d014a28/library/std/src/rt.rs:148:20
[INFO] [stderr]     29:     0x55e970ee9f47 - std::rt::lang_start::h43c19055e185169f
[INFO] [stderr]     30:     0x55e970eecd25 - main
[INFO] [stderr]     31:     0x7f3db2089d90 - <unknown>
[INFO] [stderr]     32:     0x7f3db2089e40 - __libc_start_main
[INFO] [stderr]     33:     0x55e970ee9645 - _start
[INFO] [stderr]     34:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "ab9f9348b853ca6c187c799de0d958a8e98890461770df3f6d6a1fca5b53341d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab9f9348b853ca6c187c799de0d958a8e98890461770df3f6d6a1fca5b53341d", kill_on_drop: false }`
[INFO] [stdout] ab9f9348b853ca6c187c799de0d958a8e98890461770df3f6d6a1fca5b53341d
