[INFO] fetching crate docs-rs-env-print 0.1.0...
[INFO] checking docs-rs-env-print-0.1.0 against 1.55.0 for beta-1.56-3
[INFO] extracting crate docs-rs-env-print 0.1.0 into /workspace/builds/worker-59/source
[INFO] validating manifest of crates.io crate docs-rs-env-print 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate docs-rs-env-print 0.1.0
[INFO] finished tweaking crates.io crate docs-rs-env-print 0.1.0
[INFO] tweaked toml for crates.io crate docs-rs-env-print 0.1.0 written to /workspace/builds/worker-59/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f91b166f17d98931dfb96a7f185de32aeb295109574553025c50819f1793c8e5
[INFO] running `Command { std: "docker" "start" "-a" "f91b166f17d98931dfb96a7f185de32aeb295109574553025c50819f1793c8e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f91b166f17d98931dfb96a7f185de32aeb295109574553025c50819f1793c8e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f91b166f17d98931dfb96a7f185de32aeb295109574553025c50819f1793c8e5", kill_on_drop: false }`
[INFO] [stdout] f91b166f17d98931dfb96a7f185de32aeb295109574553025c50819f1793c8e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 04d096eb596b2c5dd3b8c7307d4d38b87b5f9d03775e67f45a52c3245d93b8bc
[INFO] running `Command { std: "docker" "start" "-a" "04d096eb596b2c5dd3b8c7307d4d38b87b5f9d03775e67f45a52c3245d93b8bc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling docs-rs-env-print v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `docs-rs-env-print v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/docs-rs-env-print-a7c4ce870f2fa1f2/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   CARGO=/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/bin/cargo
[INFO] [stderr]   CARGO_CFG_TARGET_ARCH=x86_64
[INFO] [stderr]   CARGO_CFG_TARGET_ENDIAN=little
[INFO] [stderr]   CARGO_CFG_TARGET_ENV=gnu
[INFO] [stderr]   CARGO_CFG_TARGET_FAMILY=unix
[INFO] [stderr]   CARGO_CFG_TARGET_FEATURE=fxsr,sse,sse2
[INFO] [stderr]   CARGO_CFG_TARGET_OS=linux
[INFO] [stderr]   CARGO_CFG_TARGET_POINTER_WIDTH=64
[INFO] [stderr]   CARGO_CFG_TARGET_VENDOR=unknown
[INFO] [stderr]   CARGO_CFG_UNIX=
[INFO] [stderr]   CARGO_ENCODED_RUSTFLAGS=--cap-lints=warn
[INFO] [stderr]   CARGO_HOME=/opt/rustwide/cargo-home
[INFO] [stderr]   CARGO_INCREMENTAL=0
[INFO] [stderr]   CARGO_MAKEFLAGS=-j --jobserver-fds=5,6 --jobserver-auth=5,6
[INFO] [stderr]   CARGO_MANIFEST_DIR=/opt/rustwide/workdir
[INFO] [stderr]   CARGO_PKG_AUTHORS=lights0123 <developer@lights0123.com>
[INFO] [stderr]   CARGO_PKG_DESCRIPTION=DON'T USE—for detecting docs.rs build envs
[INFO] [stderr]   CARGO_PKG_HOMEPAGE=
[INFO] [stderr]   CARGO_PKG_LICENSE=MIT OR Apache-2.0
[INFO] [stderr]   CARGO_PKG_LICENSE_FILE=
[INFO] [stderr]   CARGO_PKG_NAME=docs-rs-env-print
[INFO] [stderr]   CARGO_PKG_REPOSITORY=
[INFO] [stderr]   CARGO_PKG_VERSION=0.1.0
[INFO] [stderr]   CARGO_PKG_VERSION_MAJOR=0
[INFO] [stderr]   CARGO_PKG_VERSION_MINOR=1
[INFO] [stderr]   CARGO_PKG_VERSION_PATCH=0
[INFO] [stderr]   CARGO_PKG_VERSION_PRE=
[INFO] [stderr]   CARGO_TARGET_DIR=/opt/rustwide/target
[INFO] [stderr]   DEBUG=true
[INFO] [stderr]   HOME=/root
[INFO] [stderr]   HOST=x86_64-unknown-linux-gnu
[INFO] [stderr]   HOSTNAME=04d096eb596b
[INFO] [stderr]   LD_LIBRARY_PATH=/opt/rustwide/target/debug/deps:/opt/rustwide/target/debug:/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib:/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib
[INFO] [stderr]   NUM_JOBS=128
[INFO] [stderr]   OPT_LEVEL=0
[INFO] [stderr]   OUT_DIR=/opt/rustwide/target/debug/build/docs-rs-env-print-c0424d2b5e16da2f/out
[INFO] [stderr]   PATH=/opt/rustwide/cargo-home/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
[INFO] [stderr]   PROFILE=debug
[INFO] [stderr]   RUSTC=rustc
[INFO] [stderr]   RUSTDOC=rustdoc
[INFO] [stderr]   RUSTUP_HOME=/opt/rustwide/rustup-home
[INFO] [stderr]   RUSTUP_TOOLCHAIN=1.55.0-x86_64-unknown-linux-gnu
[INFO] [stderr]   RUST_BACKTRACE=full
[INFO] [stderr]   RUST_RECURSION_COUNT=1
[INFO] [stderr]   SOURCE_DIR=/opt/rustwide/workdir
[INFO] [stderr]   SSL_CERT_DIR=/usr/lib/ssl/certs
[INFO] [stderr]   SSL_CERT_FILE=/usr/lib/ssl/certs/ca-certificates.crt
[INFO] [stderr]   TARGET=x86_64-unknown-linux-gnu
[INFO] [stderr]   thread 'main' panicked at 'explicit panic', build.rs:3:5
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55ad10b5c3b0 - std::backtrace_rs::backtrace::libunwind::trace::ha0ad43e8a952bfe7
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x55ad10b5c3b0 - std::backtrace_rs::backtrace::trace_unsynchronized::h6830419c0c4130dc
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55ad10b5c3b0 - std::sys_common::backtrace::_print_fmt::h8f3516631ffa1ef5
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x55ad10b5c3b0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::he1640d5f0d93f618
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x55ad10b75e5c - core::fmt::write::h88012e1f01caeebf
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/core/src/fmt/mod.rs:1115:17
[INFO] [stderr]      5:     0x55ad10b5ab95 - std::io::Write::write_fmt::h360fa85b30182555
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/io/mod.rs:1665:15
[INFO] [stderr]      6:     0x55ad10b5dfeb - std::sys_common::backtrace::_print::ha1f00492f406a015
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x55ad10b5dfeb - std::sys_common::backtrace::print::hd54561b13feb6af3
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x55ad10b5dfeb - std::panicking::default_hook::{{closure}}::h84fe124cd0864662
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x55ad10b5dac1 - std::panicking::default_hook::h5a8e74a76ce290a7
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x55ad10b5e6b4 - std::panicking::rust_panic_with_hook::h67c812a4fe9d4c91
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/panicking.rs:622:17
[INFO] [stderr]     11:     0x55ad10b4cbaf - std::panicking::begin_panic::{{closure}}::h75e4f4c53df6091a
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/panicking.rs:542:9
[INFO] [stderr]     12:     0x55ad10b4cd78 - std::sys_common::backtrace::__rust_end_short_backtrace::h0ffe1d0d23aadf8b
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x55ad10b4caf5 - std::panicking::begin_panic::hfab3f2e8c35b37cc
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/panicking.rs:541:12
[INFO] [stderr]     14:     0x55ad10b4c671 - build_script_build::main::h8b3b04f2b9b89318
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:3:5
[INFO] [stderr]     15:     0x55ad10b4b44b - core::ops::function::FnOnce::call_once::hf2f2d6cd1327b15c
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     16:     0x55ad10b4cdbe - std::sys_common::backtrace::__rust_begin_short_backtrace::h3b51d9e02134f795
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     17:     0x55ad10b4c8b1 - std::rt::lang_start::{{closure}}::h760a6db9e6612025
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/rt.rs:63:18
[INFO] [stderr]     18:     0x55ad10b5ebba - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::ha9408abe89f69dc4
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     19:     0x55ad10b5ebba - std::panicking::try::do_call::h5b0cc9e9102acb65
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/panicking.rs:401:40
[INFO] [stderr]     20:     0x55ad10b5ebba - std::panicking::try::hddc7f8229138b3ba
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/panicking.rs:365:19
[INFO] [stderr]     21:     0x55ad10b5ebba - std::panic::catch_unwind::hfa401ff8bab2986e
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/panic.rs:434:14
[INFO] [stderr]     22:     0x55ad10b5ebba - std::rt::lang_start_internal::{{closure}}::h8163422320d11405
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/rt.rs:45:48
[INFO] [stderr]     23:     0x55ad10b5ebba - std::panicking::try::do_call::hc742cc7bb4f0fb20
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/panicking.rs:401:40
[INFO] [stderr]     24:     0x55ad10b5ebba - std::panicking::try::ha37d8d2dd1acf7d3
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/panicking.rs:365:19
[INFO] [stderr]     25:     0x55ad10b5ebba - std::panic::catch_unwind::h8a5381d5ecf437bc
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/panic.rs:434:14
[INFO] [stderr]     26:     0x55ad10b5ebba - std::rt::lang_start_internal::h7e2cee8c90d4a4d3
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/rt.rs:45:20
[INFO] [stderr]     27:     0x55ad10b4c880 - std::rt::lang_start::h22fa44a6e90c1eac
[INFO] [stderr]                                  at /rustc/c8dfcfe046a7680554bf4eb612bad840e7631c4b/library/std/src/rt.rs:62:5
[INFO] [stderr]     28:     0x55ad10b4c84c - main
[INFO] [stderr]     29:     0x7f8278d820b3 - __libc_start_main
[INFO] [stderr]     30:     0x55ad10b4a63e - _start
[INFO] [stderr]     31:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "04d096eb596b2c5dd3b8c7307d4d38b87b5f9d03775e67f45a52c3245d93b8bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04d096eb596b2c5dd3b8c7307d4d38b87b5f9d03775e67f45a52c3245d93b8bc", kill_on_drop: false }`
[INFO] [stdout] 04d096eb596b2c5dd3b8c7307d4d38b87b5f9d03775e67f45a52c3245d93b8bc
