[INFO] fetching crate hermit-sys 0.1.17...
[INFO] checking hermit-sys-0.1.17 against try#8b72f65b805cbe4c261de45030d663f524f27376 for pr-78991
[INFO] extracting crate hermit-sys 0.1.17 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate hermit-sys 0.1.17 on toolchain 8b72f65b805cbe4c261de45030d663f524f27376
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hermit-sys 0.1.17
[INFO] finished tweaking crates.io crate hermit-sys 0.1.17
[INFO] tweaked toml for crates.io crate hermit-sys 0.1.17 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "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" "+8b72f65b805cbe4c261de45030d663f524f27376" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded aarch64 v0.0.4
[INFO] [stderr]   Downloaded x86 v0.34.0
[INFO] [stderr]   Downloaded rftrace v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0f8d82c57683c5e065cf85afdc0e720a305398df7dc47a290712d4a49b7a9022
[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" "0f8d82c57683c5e065cf85afdc0e720a305398df7dc47a290712d4a49b7a9022", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f8d82c57683c5e065cf85afdc0e720a305398df7dc47a290712d4a49b7a9022", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f8d82c57683c5e065cf85afdc0e720a305398df7dc47a290712d4a49b7a9022", kill_on_drop: false }`
[INFO] [stdout] 0f8d82c57683c5e065cf85afdc0e720a305398df7dc47a290712d4a49b7a9022
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 28ef549e40cd526c5771608946c24bb3214474f968b3f22414e83fbfe6099880
[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" "28ef549e40cd526c5771608946c24bb3214474f968b3f22414e83fbfe6099880", kill_on_drop: false }`
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling x86 v0.34.0
[INFO] [stderr]    Compiling llvm-tools v0.1.1
[INFO] [stderr]     Checking bit_field v0.10.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]    Compiling raw-cpuid v8.1.2
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling target_build_utils v0.3.1
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling serde_json v0.9.10
[INFO] [stderr]    Compiling hermit-sys v0.1.17 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `DirEntry`, `WalkDir`
[INFO] [stdout]   --> build.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 | use walkdir::{DirEntry, WalkDir};
[INFO] [stdout]    |               ^^^^^^^^  ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: failed to run custom build command for `hermit-sys v0.1.17 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/hermit-sys-4781e6f1f0c8b954/build-script-build` (exit code: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rerun-if-env-changed=HERMIT_IP
[INFO] [stderr]   cargo:rerun-if-env-changed=HERMIT_GATEWAY
[INFO] [stderr]   cargo:rerun-if-env-changed=HERMIT_MASK
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'Unable to build kernel: Os { code: 2, kind: NotFound, message: "No such file or directory" }', build.rs:60:31
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x557eeae31c10 - std::backtrace_rs::backtrace::libunwind::trace::h448c56741b6011d3
[INFO] [stderr]                                  at /rustc/8b72f65b805cbe4c261de45030d663f524f27376/library/std/src/../../backtrace/src/backtrace/libunwind.rs:100:5
[INFO] [stderr]      1:     0x557eeae31c10 - std::backtrace_rs::backtrace::trace_unsynchronized::h2d26397c5720fdbb
[INFO] [stderr]                                  at /rustc/8b72f65b805cbe4c261de45030d663f524f27376/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x557eeae31c10 - std::sys_common::backtrace::_print_fmt::h720a2f61f75b9f58
[INFO] [stderr]                                  at /rustc/8b72f65b805cbe4c261de45030d663f524f27376/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x557eeae31c10 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h8d62bbfda6d5c836
[INFO] [stderr]                                  at /rustc/8b72f65b805cbe4c261de45030d663f524f27376/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x557eeae5491c - core::fmt::write::h1857a60b204f1b6a
[INFO] [stderr]                                  at /rustc/8b72f65b805cbe4c261de45030d663f524f27376/library/core/src/fmt/mod.rs:1078:17
[INFO] [stderr]      5:     0x557eeae2eb52 - std::io::Write::write_fmt::h16a9fe7680ac245c
[INFO] [stderr]                                  at /rustc/8b72f65b805cbe4c261de45030d663f524f27376/library/std/src/io/mod.rs:1518:15
[INFO] [stderr]      6:     0x557eeae33f25 - std::sys_common::backtrace::_print::h9ba51a6db618de7d
[INFO] [stderr]                                  at /rustc/8b72f65b805cbe4c261de45030d663f524f27376/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x557eeae33f25 - std::sys_common::backtrace::print::h5f20e41c85e91716
[INFO] [stderr]                                  at /rustc/8b72f65b805cbe4c261de45030d663f524f27376/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x557eeae33f25 - std::panicking::default_hook::{{closure}}::h5b7294ca19e8edab
[INFO] [stderr]                                  at /rustc/8b72f65b805cbe4c261de45030d663f524f27376/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x557eeae33bc8 - std::panicking::default_hook::hb3948d1f74b6ff4c
[INFO] [stderr]                                  at /rustc/8b72f65b805cbe4c261de45030d663f524f27376/library/std/src/panicking.rs:227:9
[INFO] [stderr]     10:     0x557eeae34661 - std::panicking::rust_panic_with_hook::h55d23fef0ad751bc
[INFO] [stderr]                                  at /rustc/8b72f65b805cbe4c261de45030d663f524f27376/library/std/src/panicking.rs:593:17
[INFO] [stderr]     11:     0x557eeae341a7 - std::panicking::begin_panic_handler::{{closure}}::h56ae74c6dea6e141
[INFO] [stderr]                                  at /rustc/8b72f65b805cbe4c261de45030d663f524f27376/library/std/src/panicking.rs:499:13
[INFO] [stderr]     12:     0x557eeae320ac - std::sys_common::backtrace::__rust_end_short_backtrace::h3c4721f56689fae4
[INFO] [stderr]                                  at /rustc/8b72f65b805cbe4c261de45030d663f524f27376/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x557eeae34109 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/8b72f65b805cbe4c261de45030d663f524f27376/library/std/src/panicking.rs:495:5
[INFO] [stderr]     14:     0x557eeae53281 - core::panicking::panic_fmt::hb15d6f55e8472f62
[INFO] [stderr]                                  at /rustc/8b72f65b805cbe4c261de45030d663f524f27376/library/core/src/panicking.rs:92:14
[INFO] [stderr]     15:     0x557eeae530a3 - core::option::expect_none_failed::he492a18657d97593
[INFO] [stderr]                                  at /rustc/8b72f65b805cbe4c261de45030d663f524f27376/library/core/src/option.rs:1268:5
[INFO] [stderr]     16:     0x557eeadd5f74 - core::result::Result<T,E>::expect::he27fb142a26a3cc1
[INFO] [stderr]                                  at /rustc/8b72f65b805cbe4c261de45030d663f524f27376/library/core/src/result.rs:933:23
[INFO] [stderr]     17:     0x557eeadd1837 - build_script_build::build_hermit::hc92a8555c1c2a0d8
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:60:15
[INFO] [stderr]     18:     0x557eeadd3595 - build_script_build::build::h2ed3f2dcbe494a11
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:156:2
[INFO] [stderr]     19:     0x557eeadd3d1b - build_script_build::main::hada2383c9e7ad409
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:226:2
[INFO] [stderr]     20:     0x557eeadd481b - core::ops::function::FnOnce::call_once::had791fa8605dfc56
[INFO] [stderr]                                  at /rustc/8b72f65b805cbe4c261de45030d663f524f27376/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     21:     0x557eeadd47ae - std::sys_common::backtrace::__rust_begin_short_backtrace::hcae1eac45048fcbb
[INFO] [stderr]                                  at /rustc/8b72f65b805cbe4c261de45030d663f524f27376/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     22:     0x557eeadd4781 - std::rt::lang_start::{{closure}}::h257e8d5dc6820ce2
[INFO] [stderr]                                  at /rustc/8b72f65b805cbe4c261de45030d663f524f27376/library/std/src/rt.rs:66:18
[INFO] [stderr]     23:     0x557eeae34a87 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h3f3ba5d1e0ce8d49
[INFO] [stderr]                                  at /rustc/8b72f65b805cbe4c261de45030d663f524f27376/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     24:     0x557eeae34a87 - std::panicking::try::do_call::hd7a374fc87b951e7
[INFO] [stderr]                                  at /rustc/8b72f65b805cbe4c261de45030d663f524f27376/library/std/src/panicking.rs:381:40
[INFO] [stderr]     25:     0x557eeae34a87 - std::panicking::try::h068087b173f80a49
[INFO] [stderr]                                  at /rustc/8b72f65b805cbe4c261de45030d663f524f27376/library/std/src/panicking.rs:345:19
[INFO] [stderr]     26:     0x557eeae34a87 - std::panic::catch_unwind::h1f8259807e825279
[INFO] [stderr]                                  at /rustc/8b72f65b805cbe4c261de45030d663f524f27376/library/std/src/panic.rs:396:14
[INFO] [stderr]     27:     0x557eeae34a87 - std::rt::lang_start_internal::h8ff82302dd620b52
[INFO] [stderr]                                  at /rustc/8b72f65b805cbe4c261de45030d663f524f27376/library/std/src/rt.rs:51:25
[INFO] [stderr]     28:     0x557eeadd4757 - std::rt::lang_start::h9aa41f02aba6e43e
[INFO] [stderr]                                  at /rustc/8b72f65b805cbe4c261de45030d663f524f27376/library/std/src/rt.rs:65:5
[INFO] [stderr]     29:     0x557eeadd3d4a - main
[INFO] [stderr]     30:     0x7f6534f840b3 - __libc_start_main
[INFO] [stderr]     31:     0x557eeadd10be - _start
[INFO] [stderr]     32:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "28ef549e40cd526c5771608946c24bb3214474f968b3f22414e83fbfe6099880", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28ef549e40cd526c5771608946c24bb3214474f968b3f22414e83fbfe6099880", kill_on_drop: false }`
[INFO] [stdout] 28ef549e40cd526c5771608946c24bb3214474f968b3f22414e83fbfe6099880