[INFO] fetching crate qemu-xtensa 0.1.0...
[INFO] testing qemu-xtensa-0.1.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate qemu-xtensa 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate qemu-xtensa 0.1.0
[INFO] finished tweaking crates.io crate qemu-xtensa 0.1.0
[INFO] tweaked toml for crates.io crate qemu-xtensa 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate qemu-xtensa 0.1.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate qemu-xtensa 0.1.0 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memfd-exec v0.1.4
[INFO] [stderr]   Downloaded qemu v0.1.6
[INFO] [stderr]   Downloaded openssl-sys v0.9.77
[INFO] [stderr]   Downloaded nix v0.25.0
[INFO] [stderr]   Downloaded libgit2-sys v0.14.0+1.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ee35802fc1822d462ef711b3a920c21041cdbd39c7b0cb3c46ab40649104e985
[INFO] running `Command { std: "docker" "start" "-a" "ee35802fc1822d462ef711b3a920c21041cdbd39c7b0cb3c46ab40649104e985", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee35802fc1822d462ef711b3a920c21041cdbd39c7b0cb3c46ab40649104e985", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee35802fc1822d462ef711b3a920c21041cdbd39c7b0cb3c46ab40649104e985", kill_on_drop: false }`
[INFO] [stdout] ee35802fc1822d462ef711b3a920c21041cdbd39c7b0cb3c46ab40649104e985
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ef7d79b40949508f0cdb1b05d262d32a8315356caf1e673eb0b75c5afad757f
[INFO] running `Command { std: "docker" "start" "-a" "3ef7d79b40949508f0cdb1b05d262d32a8315356caf1e673eb0b75c5afad757f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling percent-encoding v2.2.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.8
[INFO] [stderr]    Compiling openssl-probe v0.1.5
[INFO] [stderr]    Compiling memfd-exec v0.1.4
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling form_urlencoded v1.1.0
[INFO] [stderr]    Compiling jobserver v0.1.25
[INFO] [stderr]    Compiling num_cpus v1.14.0
[INFO] [stderr]    Compiling cc v1.0.74
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]    Compiling idna v0.3.0
[INFO] [stderr]    Compiling openssl-sys v0.9.77
[INFO] [stderr]    Compiling libz-sys v1.1.8
[INFO] [stderr]    Compiling libssh2-sys v0.2.23
[INFO] [stderr]    Compiling libgit2-sys v0.14.0+1.5.0
[INFO] [stderr]    Compiling nix v0.25.0
[INFO] [stderr]    Compiling url v2.3.1
[INFO] [stderr]    Compiling git2 v0.15.0
[INFO] [stderr]    Compiling qemu v0.1.6
[INFO] [stderr] error: failed to run custom build command for `qemu v0.1.6`
[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/qemu-2de16370627d610b/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rerun-if-changed=build.rs
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/qemu-0.1.6/build.rs:697:53:
[INFO] [stderr]   Failed to open repository: Error { code: -3, klass: 2, message: "failed to resolve path '/opt/rustwide/target/debug/build/qemu-1696ee1001c4c377/out/qemu': No such file or directory" }
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5eb00a5d8c22 - std::backtrace_rs::backtrace::libunwind::trace::h2d45396358f41939
[INFO] [stderr]                                  at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x5eb00a5d8c22 - std::backtrace_rs::backtrace::trace_unsynchronized::hffcefc0b67f1d6e2
[INFO] [stderr]                                  at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x5eb00a5d8c22 - std::sys::backtrace::_print_fmt::hd72f71d23b436b92
[INFO] [stderr]                                  at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x5eb00a5d8c22 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hdcfcb6d4c8489523
[INFO] [stderr]                                  at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x5eb00a5f8943 - core::fmt::rt::Argument::fmt::h2c56b3114963061a
[INFO] [stderr]                                  at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]      5:     0x5eb00a5f8943 - core::fmt::write::h8a494366950f23bb
[INFO] [stderr]                                  at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/fmt/mod.rs:1468:25
[INFO] [stderr]      6:     0x5eb00a5d6363 - std::io::default_write_fmt::ha27fbccbc65eb6fa
[INFO] [stderr]                                  at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x5eb00a5d6363 - std::io::Write::write_fmt::h6556609fca33d0b1
[INFO] [stderr]                                  at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/io/mod.rs:1954:13
[INFO] [stderr]      8:     0x5eb00a5d8a72 - std::sys::backtrace::BacktraceLock::print::hb2a626a81e06b2dc
[INFO] [stderr]                                  at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x5eb00a5d9bb3 - std::panicking::default_hook::{{closure}}::h4f78485264f12d10
[INFO] [stderr]                                  at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:300:27
[INFO] [stderr]     10:     0x5eb00a5d9995 - std::panicking::default_hook::h2c66fc99e962531d
[INFO] [stderr]                                  at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:327:9
[INFO] [stderr]     11:     0x5eb00a5da5c5 - std::panicking::rust_panic_with_hook::h33ac55f64bbd807d
[INFO] [stderr]                                  at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:833:13
[INFO] [stderr]     12:     0x5eb00a5da35a - std::panicking::begin_panic_handler::{{closure}}::h30e7cb89678a57fe
[INFO] [stderr]                                  at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:706:13
[INFO] [stderr]     13:     0x5eb00a5d9129 - std::sys::backtrace::__rust_end_short_backtrace::hed60f27456c16ced
[INFO] [stderr]                                  at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:174:18
[INFO] [stderr]     14:     0x5eb00a5d9fed - __rustc[de2ca18b4c54d5b8]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:697:5
[INFO] [stderr]     15:     0x5eb00a5f7b70 - core::panicking::panic_fmt::h62f63d096dd276af
[INFO] [stderr]                                  at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/panicking.rs:75:14
[INFO] [stderr]     16:     0x5eb00a5f7fa6 - core::result::unwrap_failed::h95bc3f5a607b2c95
[INFO] [stderr]                                  at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/result.rs:1765:5
[INFO] [stderr]     17:     0x5eb00a4853a0 - core::result::Result<T,E>::expect::h323df3091808dd5a
[INFO] [stderr]     18:     0x5eb00a4895f9 - build_script_build::main::h891b6c35482cf18f
[INFO] [stderr]     19:     0x5eb00a483d33 - core::ops::function::FnOnce::call_once::h0890ccd72a685aae
[INFO] [stderr]     20:     0x5eb00a4834f6 - std::sys::backtrace::__rust_begin_short_backtrace::h9a5a6a741edc2379
[INFO] [stderr]     21:     0x5eb00a483419 - std::rt::lang_start::{{closure}}::h87363347bc6fa4d4
[INFO] [stderr]     22:     0x5eb00a5d2480 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h638295a043b40957
[INFO] [stderr]                                  at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/ops/function.rs:290:21
[INFO] [stderr]     23:     0x5eb00a5d2480 - std::panicking::catch_unwind::do_call::hbd68098bdea1ca50
[INFO] [stderr]                                  at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:589:40
[INFO] [stderr]     24:     0x5eb00a5d2480 - std::panicking::catch_unwind::h50591d85bf847c7c
[INFO] [stderr]                                  at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:552:19
[INFO] [stderr]     25:     0x5eb00a5d2480 - std::panic::catch_unwind::h2487b4c4f2ae22c6
[INFO] [stderr]                                  at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panic.rs:359:14
[INFO] [stderr]     26:     0x5eb00a5d2480 - std::rt::lang_start_internal::{{closure}}::h61f0945cc6c9a811
[INFO] [stderr]                                  at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/rt.rs:175:24
[INFO] [stderr]     27:     0x5eb00a5d2480 - std::panicking::catch_unwind::do_call::h34b9c3722acd6bd1
[INFO] [stderr]                                  at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:589:40
[INFO] [stderr]     28:     0x5eb00a5d2480 - std::panicking::catch_unwind::hf9a822ea043fb0d6
[INFO] [stderr]                                  at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:552:19
[INFO] [stderr]     29:     0x5eb00a5d2480 - std::panic::catch_unwind::h5b3cac802237ed89
[INFO] [stderr]                                  at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panic.rs:359:14
[INFO] [stderr]     30:     0x5eb00a5d2480 - std::rt::lang_start_internal::h34f9328d113fd60a
[INFO] [stderr]                                  at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/rt.rs:171:5
[INFO] [stderr]     31:     0x5eb00a483401 - std::rt::lang_start::hc0dbcb531442c34d
[INFO] [stderr]     32:     0x5eb00a48a5e5 - main
[INFO] [stderr]     33:     0x7f7b0ef0c1ca - <unknown>
[INFO] [stderr]     34:     0x7f7b0ef0c28b - __libc_start_main
[INFO] [stderr]     35:     0x5eb00a482d75 - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "3ef7d79b40949508f0cdb1b05d262d32a8315356caf1e673eb0b75c5afad757f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ef7d79b40949508f0cdb1b05d262d32a8315356caf1e673eb0b75c5afad757f", kill_on_drop: false }`
[INFO] [stdout] 3ef7d79b40949508f0cdb1b05d262d32a8315356caf1e673eb0b75c5afad757f