[INFO] fetching crate rusty_v8_m 0.4.3...
[INFO] checking rusty_v8_m-0.4.3 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] extracting crate rusty_v8_m 0.4.3 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate rusty_v8_m 0.4.3 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rusty_v8_m 0.4.3
[INFO] finished tweaking crates.io crate rusty_v8_m 0.4.3
[INFO] tweaked toml for crates.io crate rusty_v8_m 0.4.3 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 68d8e627e432ec498d463ab2fa692f2922097a8b4293e25cc0479f411f7a3c33
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "68d8e627e432ec498d463ab2fa692f2922097a8b4293e25cc0479f411f7a3c33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68d8e627e432ec498d463ab2fa692f2922097a8b4293e25cc0479f411f7a3c33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68d8e627e432ec498d463ab2fa692f2922097a8b4293e25cc0479f411f7a3c33", kill_on_drop: false }`
[INFO] [stdout] 68d8e627e432ec498d463ab2fa692f2922097a8b4293e25cc0479f411f7a3c33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cdb2d1f35c188dfdaf1ad4d1719a4b1ea3f2ceef9e8aa037a6d3d94768c2382d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "cdb2d1f35c188dfdaf1ad4d1719a4b1ea3f2ceef9e8aa037a6d3d94768c2382d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling backtrace v0.3.56
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling rusty_v8_m v0.4.3 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]     Checking serde v1.0.125
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking trybuild v1.0.42
[INFO] [stderr] error: failed to run custom build command for `rusty_v8_m v0.4.3 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/rusty_v8_m-49baf4f425c6b889/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   static lib URL: https://github.com/semantic-machines/rusty_v8/releases/download/v0.4.3/librusty_v8_debug_x86_64-unknown-linux-gnu.a
[INFO] [stderr]   cargo:rustc-link-search=/opt/rustwide/target/debug/gn_out/obj
[INFO] [stderr]   Downloading https://github.com/semantic-machines/rusty_v8/releases/download/v0.4.3/librusty_v8_debug_x86_64-unknown-linux-gnu.a
[INFO] [stderr]   Downloading https://github.com/semantic-machines/rusty_v8/releases/download/v0.4.3/librusty_v8_debug_x86_64-unknown-linux-gnu.a...
[INFO] [stderr]   <urlopen error [Errno -3] Temporary failure in name resolution>
[INFO] [stderr]   Retrying in 5 s ...
[INFO] [stderr]   Downloading https://github.com/semantic-machines/rusty_v8/releases/download/v0.4.3/librusty_v8_debug_x86_64-unknown-linux-gnu.a...
[INFO] [stderr]   <urlopen error [Errno -3] Temporary failure in name resolution>
[INFO] [stderr]   Retrying in 10 s ...
[INFO] [stderr]   Downloading https://github.com/semantic-machines/rusty_v8/releases/download/v0.4.3/librusty_v8_debug_x86_64-unknown-linux-gnu.a...
[INFO] [stderr]   <urlopen error [Errno -3] Temporary failure in name resolution>
[INFO] [stderr]   Retrying in 20 s ...
[INFO] [stderr]   Downloading https://github.com/semantic-machines/rusty_v8/releases/download/v0.4.3/librusty_v8_debug_x86_64-unknown-linux-gnu.a...
[INFO] [stderr]   <urlopen error [Errno -3] Temporary failure in name resolution>
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Traceback (most recent call last):
[INFO] [stderr]     File "./tools/download_file.py", line 63, in <module>
[INFO] [stderr]       sys.exit(main())
[INFO] [stderr]     File "./tools/download_file.py", line 58, in main
[INFO] [stderr]       DownloadUrl(args.url, f)
[INFO] [stderr]     File "./tools/download_file.py", line 44, in DownloadUrl
[INFO] [stderr]       raise e
[INFO] [stderr]   urllib2.URLError: <urlopen error [Errno -3] Temporary failure in name resolution>
[INFO] [stderr]   thread 'main' panicked at 'assertion failed: status.success()', build.rs:229:5
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x558a37e93d10 - std::backtrace_rs::backtrace::libunwind::trace::hec7eaac9435d3512
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x558a37e93d10 - std::backtrace_rs::backtrace::trace_unsynchronized::h42791b8fa12b7daa
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x558a37e93d10 - std::sys_common::backtrace::_print_fmt::h3da3ebe04fb665a8
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x558a37e93d10 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::he40bcdde3c4491cd
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x558a37eb27bf - core::fmt::write::h2c729149c08098ab
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/core/src/fmt/mod.rs:1094:17
[INFO] [stderr]      5:     0x558a37e91045 - std::io::Write::write_fmt::h28e0f2f58b8d7b7e
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/io/mod.rs:1578:15
[INFO] [stderr]      6:     0x558a37e95ccb - std::sys_common::backtrace::_print::h7f0223b1e3d898fc
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x558a37e95ccb - std::sys_common::backtrace::print::h58edd634a14c2d4c
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x558a37e95ccb - std::panicking::default_hook::{{closure}}::h71657a7591430164
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x558a37e957ad - std::panicking::default_hook::hcdf4eb5db072c85b
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x558a37e9627d - std::panicking::rust_panic_with_hook::hfb91e961ffb5b8e0
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/panicking.rs:591:17
[INFO] [stderr]     11:     0x558a37e95e47 - std::panicking::begin_panic_handler::{{closure}}::h984d540e84311150
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/panicking.rs:495:13
[INFO] [stderr]     12:     0x558a37e941ac - std::sys_common::backtrace::__rust_end_short_backtrace::h32354258ff2aecd1
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x558a37e95dd9 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/panicking.rs:493:5
[INFO] [stderr]     14:     0x558a37e3e071 - core::panicking::panic_fmt::he3827412471ccbb1
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/core/src/panicking.rs:92:14
[INFO] [stderr]     15:     0x558a37e3dfbd - core::panicking::panic::hc9da14adaf11eba7
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/core/src/panicking.rs:50:5
[INFO] [stderr]     16:     0x558a37e419c9 - build_script_build::download_static_lib_binaries::h1c7720f99d6f5ac0
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:229:5
[INFO] [stderr]     17:     0x558a37e3ea0c - build_script_build::main::h876ac1c21430c264
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:29:7
[INFO] [stderr]     18:     0x558a37e48b6b - core::ops::function::FnOnce::call_once::hd2413fe873246cf2
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     19:     0x558a37e4894e - std::sys_common::backtrace::__rust_begin_short_backtrace::hb6d086fe57186f33
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     20:     0x558a37e44f61 - std::rt::lang_start::{{closure}}::h0fdac8a69f63ebc6
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/rt.rs:66:18
[INFO] [stderr]     21:     0x558a37e9667a - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hd5953dadf0bc8f54
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     22:     0x558a37e9667a - std::panicking::try::do_call::h23b369f1996fb7d4
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/panicking.rs:379:40
[INFO] [stderr]     23:     0x558a37e9667a - std::panicking::try::he017ee9ed6bce192
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/panicking.rs:343:19
[INFO] [stderr]     24:     0x558a37e9667a - std::panic::catch_unwind::hbfb892340a78b30d
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/panic.rs:431:14
[INFO] [stderr]     25:     0x558a37e9667a - std::rt::lang_start_internal::hce6e4c0ce56abb51
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/rt.rs:51:25
[INFO] [stderr]     26:     0x558a37e44f40 - std::rt::lang_start::ha4514ba3d467825c
[INFO] [stderr]                                  at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/rt.rs:65:5
[INFO] [stderr]     27:     0x558a37e42a9c - main
[INFO] [stderr]     28:     0x7f331f9d20b3 - __libc_start_main
[INFO] [stderr]     29:     0x558a37e3e76e - _start
[INFO] [stderr]     30:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "cdb2d1f35c188dfdaf1ad4d1719a4b1ea3f2ceef9e8aa037a6d3d94768c2382d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdb2d1f35c188dfdaf1ad4d1719a4b1ea3f2ceef9e8aa037a6d3d94768c2382d", kill_on_drop: false }`
[INFO] [stdout] cdb2d1f35c188dfdaf1ad4d1719a4b1ea3f2ceef9e8aa037a6d3d94768c2382d