[INFO] fetching crate semver-util 0.2.1...
[INFO] checking semver-util-0.2.1 against try#ea0b8b54c698a32b6a15d1474117ead6958cef0e for pr-93275
[INFO] extracting crate semver-util 0.2.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate semver-util 0.2.1 on toolchain ea0b8b54c698a32b6a15d1474117ead6958cef0e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ea0b8b54c698a32b6a15d1474117ead6958cef0e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate semver-util 0.2.1
[INFO] finished tweaking crates.io crate semver-util 0.2.1
[INFO] tweaked toml for crates.io crate semver-util 0.2.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate semver-util 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ea0b8b54c698a32b6a15d1474117ead6958cef0e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+ea0b8b54c698a32b6a15d1474117ead6958cef0e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b741edf33abd1c64f2da70a90cd8c8973dca51cebfd3860f96a08d71d9368060
[INFO] running `Command { std: "docker" "start" "-a" "b741edf33abd1c64f2da70a90cd8c8973dca51cebfd3860f96a08d71d9368060", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b741edf33abd1c64f2da70a90cd8c8973dca51cebfd3860f96a08d71d9368060", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b741edf33abd1c64f2da70a90cd8c8973dca51cebfd3860f96a08d71d9368060", kill_on_drop: false }`
[INFO] [stdout] b741edf33abd1c64f2da70a90cd8c8973dca51cebfd3860f96a08d71d9368060
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+ea0b8b54c698a32b6a15d1474117ead6958cef0e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 21d88e07ab74fd28ddaaf77933529fe9c24fab0c03607f2097cd4c14c7dc13d8
[INFO] running `Command { std: "docker" "start" "-a" "21d88e07ab74fd28ddaaf77933529fe9c24fab0c03607f2097cd4c14c7dc13d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.44
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling syn v1.0.101
[INFO] [stderr]    Compiling rustversion v1.0.9
[INFO] [stderr]    Compiling libc v0.2.133
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking os_str_bytes v6.3.0
[INFO] [stderr]    Compiling semver v1.0.14
[INFO] [stderr]     Checking clap_lex v0.3.0
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr] error: failed to run custom build command for `rustversion v1.0.9`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/rustversion-1d0d367001aaa471/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Error: unexpected output from `rustc --version`: ""
[INFO] [stderr] 
[INFO] [stderr]   Please file an issue in https://github.com/dtolnay/rustversion
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: failed to run custom build command for `libc v0.2.133`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/libc-d8e79ce8ed3974af/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rerun-if-changed=build.rs
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'Failed to get rustc version', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libc-0.2.133/build.rs:9:63
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x558dc27fb700 - std::backtrace_rs::backtrace::libunwind::trace::h1ea4c78f91cfb1af
[INFO] [stderr]                                  at /rustc/ea0b8b54c698a32b6a15d1474117ead6958cef0e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stderr]      1:     0x558dc27fb700 - std::backtrace_rs::backtrace::trace_unsynchronized::h83c79b70e64c85d3
[INFO] [stderr]                                  at /rustc/ea0b8b54c698a32b6a15d1474117ead6958cef0e/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x558dc27fb700 - std::sys_common::backtrace::_print_fmt::haf0288715c3ab3f2
[INFO] [stderr]                                  at /rustc/ea0b8b54c698a32b6a15d1474117ead6958cef0e/library/std/src/sys_common/backtrace.rs:65:5
[INFO] [stderr]      3:     0x558dc27fb700 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h573c0a042d86b811
[INFO] [stderr]                                  at /rustc/ea0b8b54c698a32b6a15d1474117ead6958cef0e/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]      4:     0x558dc28186ee - core::fmt::write::h30d7562d38841676
[INFO] [stderr]                                  at /rustc/ea0b8b54c698a32b6a15d1474117ead6958cef0e/library/core/src/fmt/mod.rs:1209:17
[INFO] [stderr]      5:     0x558dc27f8cb5 - std::io::Write::write_fmt::h2b5df9255c373b19
[INFO] [stderr]                                  at /rustc/ea0b8b54c698a32b6a15d1474117ead6958cef0e/library/std/src/io/mod.rs:1682:15
[INFO] [stderr]      6:     0x558dc27fb4c5 - std::sys_common::backtrace::_print::h4dec1b6bbb4846af
[INFO] [stderr]                                  at /rustc/ea0b8b54c698a32b6a15d1474117ead6958cef0e/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]      7:     0x558dc27fb4c5 - std::sys_common::backtrace::print::hb24488ce74321038
[INFO] [stderr]                                  at /rustc/ea0b8b54c698a32b6a15d1474117ead6958cef0e/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]      8:     0x558dc27fcbcf - std::panicking::default_hook::{{closure}}::h71e3eee89853c54c
[INFO] [stderr]                                  at /rustc/ea0b8b54c698a32b6a15d1474117ead6958cef0e/library/std/src/panicking.rs:267:22
[INFO] [stderr]      9:     0x558dc27fc90a - std::panicking::default_hook::hafb9e019cf966bbd
[INFO] [stderr]                                  at /rustc/ea0b8b54c698a32b6a15d1474117ead6958cef0e/library/std/src/panicking.rs:286:9
[INFO] [stderr]     10:     0x558dc27fd2c8 - std::panicking::rust_panic_with_hook::h1920974cdc585755
[INFO] [stderr]                                  at /rustc/ea0b8b54c698a32b6a15d1474117ead6958cef0e/library/std/src/panicking.rs:688:13
[INFO] [stderr]     11:     0x558dc27fd067 - std::panicking::begin_panic_handler::{{closure}}::h330d8eeb88f30d9f
[INFO] [stderr]                                  at /rustc/ea0b8b54c698a32b6a15d1474117ead6958cef0e/library/std/src/panicking.rs:579:13
[INFO] [stderr]     12:     0x558dc27fbbac - std::sys_common::backtrace::__rust_end_short_backtrace::hbc068c0566313eac
[INFO] [stderr]                                  at /rustc/ea0b8b54c698a32b6a15d1474117ead6958cef0e/library/std/src/sys_common/backtrace.rs:137:18
[INFO] [stderr]     13:     0x558dc27fcd82 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/ea0b8b54c698a32b6a15d1474117ead6958cef0e/library/std/src/panicking.rs:575:5
[INFO] [stderr]     14:     0x558dc27d5083 - core::panicking::panic_fmt::h0442e04c54293c53
[INFO] [stderr]                                  at /rustc/ea0b8b54c698a32b6a15d1474117ead6958cef0e/library/core/src/panicking.rs:65:14
[INFO] [stderr]     15:     0x558dc2817991 - core::panicking::panic_display::h2a1ba22342ebbfd6
[INFO] [stderr]                                  at /rustc/ea0b8b54c698a32b6a15d1474117ead6958cef0e/library/core/src/panicking.rs:139:5
[INFO] [stderr]     16:     0x558dc281793b - core::panicking::panic_str::hb816e6be0ce8d2f8
[INFO] [stderr]                                  at /rustc/ea0b8b54c698a32b6a15d1474117ead6958cef0e/library/core/src/panicking.rs:123:5
[INFO] [stderr]     17:     0x558dc27d5046 - core::option::expect_failed::habcc3709715f324e
[INFO] [stderr]                                  at /rustc/ea0b8b54c698a32b6a15d1474117ead6958cef0e/library/core/src/option.rs:1879:5
[INFO] [stderr]     18:     0x558dc27df132 - core::option::Option<T>::expect::h9a2a722bda8ffa96
[INFO] [stderr]                                  at /rustc/ea0b8b54c698a32b6a15d1474117ead6958cef0e/library/core/src/option.rs:741:21
[INFO] [stderr]     19:     0x558dc27da3c4 - build_script_build::main::h08f6032768866fae
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libc-0.2.133/build.rs:9:41
[INFO] [stderr]     20:     0x558dc27dddfb - core::ops::function::FnOnce::call_once::h6cb0dbe057307745
[INFO] [stderr]                                  at /rustc/ea0b8b54c698a32b6a15d1474117ead6958cef0e/library/core/src/ops/function.rs:251:5
[INFO] [stderr]     21:     0x558dc27deb0e - std::sys_common::backtrace::__rust_begin_short_backtrace::h507d148779fb05c2
[INFO] [stderr]                                  at /rustc/ea0b8b54c698a32b6a15d1474117ead6958cef0e/library/std/src/sys_common/backtrace.rs:121:18
[INFO] [stderr]     22:     0x558dc27d76c1 - std::rt::lang_start::{{closure}}::h2d3137aa26982e6b
[INFO] [stderr]                                  at /rustc/ea0b8b54c698a32b6a15d1474117ead6958cef0e/library/std/src/rt.rs:166:18
[INFO] [stderr]     23:     0x558dc27f611b - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h37f04faa1a31f55f
[INFO] [stderr]                                  at /rustc/ea0b8b54c698a32b6a15d1474117ead6958cef0e/library/core/src/ops/function.rs:286:13
[INFO] [stderr]     24:     0x558dc27f611b - std::panicking::try::do_call::hc3ed35b98da1210f
[INFO] [stderr]                                  at /rustc/ea0b8b54c698a32b6a15d1474117ead6958cef0e/library/std/src/panicking.rs:483:40
[INFO] [stderr]     25:     0x558dc27f611b - std::panicking::try::hd27d4c5a6494c1fd
[INFO] [stderr]                                  at /rustc/ea0b8b54c698a32b6a15d1474117ead6958cef0e/library/std/src/panicking.rs:447:19
[INFO] [stderr]     26:     0x558dc27f611b - std::panic::catch_unwind::h66803f03e451b693
[INFO] [stderr]                                  at /rustc/ea0b8b54c698a32b6a15d1474117ead6958cef0e/library/std/src/panic.rs:137:14
[INFO] [stderr]     27:     0x558dc27f611b - std::rt::lang_start_internal::{{closure}}::h7b0fd24e73d8cc00
[INFO] [stderr]                                  at /rustc/ea0b8b54c698a32b6a15d1474117ead6958cef0e/library/std/src/rt.rs:148:48
[INFO] [stderr]     28:     0x558dc27f611b - std::panicking::try::do_call::h7bb44f272a100038
[INFO] [stderr]                                  at /rustc/ea0b8b54c698a32b6a15d1474117ead6958cef0e/library/std/src/panicking.rs:483:40
[INFO] [stderr]     29:     0x558dc27f611b - std::panicking::try::h9e6dd728c0791561
[INFO] [stderr]                                  at /rustc/ea0b8b54c698a32b6a15d1474117ead6958cef0e/library/std/src/panicking.rs:447:19
[INFO] [stderr]     30:     0x558dc27f611b - std::panic::catch_unwind::he335015a965bbbc9
[INFO] [stderr]                                  at /rustc/ea0b8b54c698a32b6a15d1474117ead6958cef0e/library/std/src/panic.rs:137:14
[INFO] [stderr]     31:     0x558dc27f611b - std::rt::lang_start_internal::hc7bd93dfa9047e3d
[INFO] [stderr]                                  at /rustc/ea0b8b54c698a32b6a15d1474117ead6958cef0e/library/std/src/rt.rs:148:20
[INFO] [stderr]     32:     0x558dc27d769a - std::rt::lang_start::hb36832c846345228
[INFO] [stderr]                                  at /rustc/ea0b8b54c698a32b6a15d1474117ead6958cef0e/library/std/src/rt.rs:165:17
[INFO] [stderr]     33:     0x558dc27dbb8e - main
[INFO] [stderr]     34:     0x7f5451a2e083 - __libc_start_main
[INFO] [stderr]     35:     0x558dc27d53ce - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "21d88e07ab74fd28ddaaf77933529fe9c24fab0c03607f2097cd4c14c7dc13d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21d88e07ab74fd28ddaaf77933529fe9c24fab0c03607f2097cd4c14c7dc13d8", kill_on_drop: false }`
[INFO] [stdout] 21d88e07ab74fd28ddaaf77933529fe9c24fab0c03607f2097cd4c14c7dc13d8