[INFO] fetching crate uu_stdbuf 0.0.8...
[INFO] testing uu_stdbuf-0.0.8 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate uu_stdbuf 0.0.8 into /workspace/builds/worker-77/source
[INFO] validating manifest of crates.io crate uu_stdbuf 0.0.8 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate uu_stdbuf 0.0.8
[INFO] finished tweaking crates.io crate uu_stdbuf 0.0.8
[INFO] tweaked toml for crates.io crate uu_stdbuf 0.0.8 written to /workspace/builds/worker-77/source/Cargo.toml
[INFO] crate crates.io crate uu_stdbuf 0.0.8 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 096ee914a7614527d2a990f3b3491a5111f67ef6a16d68021e281a493f3efaae
[INFO] running `Command { std: "docker" "start" "-a" "096ee914a7614527d2a990f3b3491a5111f67ef6a16d68021e281a493f3efaae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "096ee914a7614527d2a990f3b3491a5111f67ef6a16d68021e281a493f3efaae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "096ee914a7614527d2a990f3b3491a5111f67ef6a16d68021e281a493f3efaae", kill_on_drop: false }`
[INFO] [stdout] 096ee914a7614527d2a990f3b3491a5111f67ef6a16d68021e281a493f3efaae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 357194ef9bd0215b11864e0553a17d0c29f79dbc6fbd7730d7e3daac7641b74c
[INFO] running `Command { std: "docker" "start" "-a" "357194ef9bd0215b11864e0553a17d0c29f79dbc6fbd7730d7e3daac7641b74c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.105
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling if_rust_version v1.0.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling wild v2.0.4
[INFO] [stderr]    Compiling dunce v1.0.2
[INFO] [stderr]    Compiling ppv-lite86 v0.2.14
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling cpp_synom v0.12.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.30
[INFO] [stderr]    Compiling cpp_syn v0.12.0
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling term_size v0.3.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling cpp_common v0.4.0
[INFO] [stderr]    Compiling cpp_synmap v0.3.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling cpp_build v0.4.0
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling uu_stdbuf_libstdbuf v0.0.8
[INFO] [stderr]    Compiling uucore v0.0.10
[INFO] [stderr]    Compiling cpp_common v0.5.6
[INFO] [stderr]    Compiling cpp_macros v0.5.6
[INFO] [stderr]    Compiling uucore_procs v0.0.7
[INFO] [stderr]    Compiling cpp v0.5.6
[INFO] [stderr]    Compiling uu_stdbuf v0.0.8 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `uu_stdbuf v0.0.8 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/uu_stdbuf-9adee167280a88ae/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 2, kind: NotFound, message: "No such file or directory" }', build.rs:35:67
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x56155606126c - std::backtrace_rs::backtrace::libunwind::trace::h7630ba4cba718aa0
[INFO] [stderr]                                  at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stderr]      1:     0x56155606126c - std::backtrace_rs::backtrace::trace_unsynchronized::he7498e79c157f5ac
[INFO] [stderr]                                  at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x56155606126c - std::sys_common::backtrace::_print_fmt::hdaebadaee17bca49
[INFO] [stderr]                                  at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x56155606126c - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h82b0e3aaf8a96140
[INFO] [stderr]                                  at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x56155607c24c - core::fmt::write::h72801a82c94e6ff1
[INFO] [stderr]                                  at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/core/src/fmt/mod.rs:1149:17
[INFO] [stderr]      5:     0x56155605eb15 - std::io::Write::write_fmt::hc2da38dc44811df8
[INFO] [stderr]                                  at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/io/mod.rs:1697:15
[INFO] [stderr]      6:     0x561556062870 - std::sys_common::backtrace::_print::h1c9a1d19c48821c1
[INFO] [stderr]                                  at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x561556062870 - std::sys_common::backtrace::print::h7ce8802039fa9d0e
[INFO] [stderr]                                  at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x561556062870 - std::panicking::default_hook::{{closure}}::hb2a74a8c1499c326
[INFO] [stderr]                                  at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panicking.rs:211:50
[INFO] [stderr]      9:     0x56155606241b - std::panicking::default_hook::hf4f180b00076f2b2
[INFO] [stderr]                                  at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panicking.rs:228:9
[INFO] [stderr]     10:     0x561556062f24 - std::panicking::rust_panic_with_hook::he85ce8435493b711
[INFO] [stderr]                                  at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panicking.rs:606:17
[INFO] [stderr]     11:     0x561556062a00 - std::panicking::begin_panic_handler::{{closure}}::h31e15f69e6235bd2
[INFO] [stderr]                                  at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panicking.rs:502:13
[INFO] [stderr]     12:     0x561556061724 - std::sys_common::backtrace::__rust_end_short_backtrace::hfce2fadb61aaa3ae
[INFO] [stderr]                                  at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/sys_common/backtrace.rs:139:18
[INFO] [stderr]     13:     0x561556062969 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panicking.rs:498:5
[INFO] [stderr]     14:     0x561556048d81 - core::panicking::panic_fmt::h7b8580d81fcbbacd
[INFO] [stderr]                                  at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/core/src/panicking.rs:107:14
[INFO] [stderr]     15:     0x561556048e13 - core::result::unwrap_failed::h885d3f7beb571353
[INFO] [stderr]                                  at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/core/src/result.rs:1613:5
[INFO] [stderr]     16:     0x56155604b9d0 - core::result::Result<T,E>::unwrap::h0eb07654ed94725e
[INFO] [stderr]                                  at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/core/src/result.rs:1295:23
[INFO] [stderr]     17:     0x56155604aabb - build_script_build::main::hbda7da99ac1d6eea
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:35:5
[INFO] [stderr]     18:     0x56155604c8cb - core::ops::function::FnOnce::call_once::h186448cd391caf37
[INFO] [stderr]                                  at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     19:     0x56155604bf2e - std::sys_common::backtrace::__rust_begin_short_backtrace::h4d612a0a3cc43213
[INFO] [stderr]                                  at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/sys_common/backtrace.rs:123:18
[INFO] [stderr]     20:     0x56155604bce1 - std::rt::lang_start::{{closure}}::h258bccd974d46cde
[INFO] [stderr]                                  at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/rt.rs:145:18
[INFO] [stderr]     21:     0x561556060ab1 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h0e73392810ecd318
[INFO] [stderr]                                  at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     22:     0x561556060ab1 - std::panicking::try::do_call::h12dcb4a4f352a507
[INFO] [stderr]                                  at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panicking.rs:406:40
[INFO] [stderr]     23:     0x561556060ab1 - std::panicking::try::h0d978c76ab4a3863
[INFO] [stderr]                                  at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panicking.rs:370:19
[INFO] [stderr]     24:     0x561556060ab1 - std::panic::catch_unwind::hab40227675186980
[INFO] [stderr]                                  at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panic.rs:133:14
[INFO] [stderr]     25:     0x561556060ab1 - std::rt::lang_start_internal::{{closure}}::hc34786299e7d2cf7
[INFO] [stderr]                                  at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/rt.rs:128:48
[INFO] [stderr]     26:     0x561556060ab1 - std::panicking::try::do_call::h38e7a9128f21d387
[INFO] [stderr]                                  at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panicking.rs:406:40
[INFO] [stderr]     27:     0x561556060ab1 - std::panicking::try::h32d4e72fd8922bce
[INFO] [stderr]                                  at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panicking.rs:370:19
[INFO] [stderr]     28:     0x561556060ab1 - std::panic::catch_unwind::h9a345671d889d41f
[INFO] [stderr]                                  at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panic.rs:133:14
[INFO] [stderr]     29:     0x561556060ab1 - std::rt::lang_start_internal::h9e691a4f557eb2a3
[INFO] [stderr]                                  at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/rt.rs:128:20
[INFO] [stderr]     30:     0x56155604bcb0 - std::rt::lang_start::hf32a6391fd472a45
[INFO] [stderr]                                  at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/rt.rs:144:17
[INFO] [stderr]     31:     0x56155604ab9c - main
[INFO] [stderr]     32:     0x7f58117f30b3 - __libc_start_main
[INFO] [stderr]     33:     0x56155604949e - _start
[INFO] [stderr]     34:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "357194ef9bd0215b11864e0553a17d0c29f79dbc6fbd7730d7e3daac7641b74c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "357194ef9bd0215b11864e0553a17d0c29f79dbc6fbd7730d7e3daac7641b74c", kill_on_drop: false }`
[INFO] [stdout] 357194ef9bd0215b11864e0553a17d0c29f79dbc6fbd7730d7e3daac7641b74c