[INFO] cloning repository https://github.com/cite-reader/rust-http-server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cite-reader/rust-http-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcite-reader%2Frust-http-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcite-reader%2Frust-http-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d5e0c5e1607cf989507be23418f91391c4135b1a
[INFO] checking cite-reader/rust-http-server against master#1280928a99ad3ef2c5735b42dc8852456ae3b974 for pr-120798
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcite-reader%2Frust-http-server" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cite-reader/rust-http-server on toolchain 1280928a99ad3ef2c5735b42dc8852456ae3b974
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1280928a99ad3ef2c5735b42dc8852456ae3b974" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cite-reader/rust-http-server
[INFO] finished tweaking git repo https://github.com/cite-reader/rust-http-server
[INFO] tweaked toml for git repo https://github.com/cite-reader/rust-http-server written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/cite-reader/rust-http-server already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1280928a99ad3ef2c5735b42dc8852456ae3b974" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking cite-reader/rust-http-server against try#9b9e20bc79549d80ab413f49d990713851172cc1 for pr-120798
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcite-reader%2Frust-http-server" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cite-reader/rust-http-server on toolchain 9b9e20bc79549d80ab413f49d990713851172cc1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9b9e20bc79549d80ab413f49d990713851172cc1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cite-reader/rust-http-server
[INFO] finished tweaking git repo https://github.com/cite-reader/rust-http-server
[INFO] tweaked toml for git repo https://github.com/cite-reader/rust-http-server written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/cite-reader/rust-http-server already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9b9e20bc79549d80ab413f49d990713851172cc1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded env_logger v0.3.2
[INFO] [stderr]   Downloaded byteorder v0.5.1
[INFO] [stderr]   Downloaded ansi_term v0.7.2
[INFO] [stderr]   Downloaded phf_generator v0.7.13
[INFO] [stderr]   Downloaded mempool v0.2.0
[INFO] [stderr]   Downloaded toml v0.1.28
[INFO] [stderr]   Downloaded strsim v0.4.0
[INFO] [stderr]   Downloaded aho-corasick v0.5.1
[INFO] [stderr]   Downloaded regex-syntax v0.3.1
[INFO] [stderr]   Downloaded memchr v0.1.10
[INFO] [stderr]   Downloaded log v0.3.5
[INFO] [stderr]   Downloaded phf_shared v0.7.13
[INFO] [stderr]   Downloaded phf v0.7.13
[INFO] [stderr]   Downloaded httparse v1.1.1
[INFO] [stderr]   Downloaded mime v0.2.0
[INFO] [stderr]   Downloaded phf_codegen v0.7.13
[INFO] [stderr]   Downloaded nom v1.2.2
[INFO] [stderr]   Downloaded mime_guess v1.6.0
[INFO] [stderr]   Downloaded clap v2.2.2
[INFO] [stderr]   Downloaded regex v0.1.59
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+9b9e20bc79549d80ab413f49d990713851172cc1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f3e29dcf68a40968a5a73f8175fa7596b9742ed2272a880486c081c933067588
[INFO] running `Command { std: "docker" "start" "-a" "f3e29dcf68a40968a5a73f8175fa7596b9742ed2272a880486c081c933067588", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3e29dcf68a40968a5a73f8175fa7596b9742ed2272a880486c081c933067588", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3e29dcf68a40968a5a73f8175fa7596b9742ed2272a880486c081c933067588", kill_on_drop: false }`
[INFO] [stdout] f3e29dcf68a40968a5a73f8175fa7596b9742ed2272a880486c081c933067588
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+9b9e20bc79549d80ab413f49d990713851172cc1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aac693f9d40d7b9b6745cc5ae79361d41f855b755921717ebde4eb833ac7f229
[INFO] running `Command { std: "docker" "start" "-a" "aac693f9d40d7b9b6745cc5ae79361d41f855b755921717ebde4eb833ac7f229", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.8
[INFO] [stderr]    Compiling phf_shared v0.7.13
[INFO] [stderr]     Checking regex-syntax v0.3.1
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking mempool v0.2.0
[INFO] [stderr]     Checking unicode-width v0.1.3
[INFO] [stderr]     Checking ansi_term v0.7.2
[INFO] [stderr]     Checking phf v0.7.13
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]     Checking vec_map v0.6.0
[INFO] [stderr]     Checking strsim v0.4.0
[INFO] [stderr]     Checking httparse v1.1.1
[INFO] [stderr]     Checking byteorder v0.5.1
[INFO] [stderr]     Checking log v0.3.5
[INFO] [stderr]    Compiling rand v0.3.14
[INFO] [stderr]     Checking memchr v0.1.10
[INFO] [stderr]     Checking nom v1.2.2
[INFO] [stderr]     Checking mime v0.2.0
[INFO] [stderr]     Checking clap v2.2.2
[INFO] [stderr]     Checking toml v0.1.28
[INFO] [stderr]     Checking aho-corasick v0.5.1
[INFO] [stderr]     Checking regex v0.1.59
[INFO] [stderr]    Compiling phf_generator v0.7.13
[INFO] [stderr]    Compiling phf_codegen v0.7.13
[INFO] [stderr]    Compiling mime_guess v1.6.0
[INFO] [stderr]     Checking env_logger v0.3.2
[INFO] [stderr] error: failed to run custom build command for `mime_guess v1.6.0`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/mime_guess-24c7e567915503e7/build-script-gen_mime_types` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/mime_guess-1.6.0/src/gen_mime_types.rs:16:67:
[INFO] [stderr]   called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x56315e7ed6c6 - std::backtrace_rs::backtrace::libunwind::trace::hdde23b9987639aa9
[INFO] [stderr]                                  at /rustc/9b9e20bc79549d80ab413f49d990713851172cc1/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stderr]      1:     0x56315e7ed6c6 - std::backtrace_rs::backtrace::trace_unsynchronized::h5314dbca0abd36e3
[INFO] [stderr]                                  at /rustc/9b9e20bc79549d80ab413f49d990713851172cc1/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x56315e7ed6c6 - std::sys_common::backtrace::_print_fmt::h0869e797cf0ad9b8
[INFO] [stderr]                                  at /rustc/9b9e20bc79549d80ab413f49d990713851172cc1/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stderr]      3:     0x56315e7ed6c6 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::ha75eeae9b53eb870
[INFO] [stderr]                                  at /rustc/9b9e20bc79549d80ab413f49d990713851172cc1/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]      4:     0x56315e80ce50 - core::fmt::rt::Argument::fmt::h96c44a4939cd3962
[INFO] [stderr]                                  at /rustc/9b9e20bc79549d80ab413f49d990713851172cc1/library/core/src/fmt/rt.rs:142:9
[INFO] [stderr]      5:     0x56315e80ce50 - core::fmt::write::h37c16d7c7458b59d
[INFO] [stderr]                                  at /rustc/9b9e20bc79549d80ab413f49d990713851172cc1/library/core/src/fmt/mod.rs:1120:17
[INFO] [stderr]      6:     0x56315e7eb98f - std::io::Write::write_fmt::hb2c0c587a3a1e0ab
[INFO] [stderr]                                  at /rustc/9b9e20bc79549d80ab413f49d990713851172cc1/library/std/src/io/mod.rs:1854:15
[INFO] [stderr]      7:     0x56315e7ed4a4 - std::sys_common::backtrace::_print::h5e15c9603d68ed05
[INFO] [stderr]                                  at /rustc/9b9e20bc79549d80ab413f49d990713851172cc1/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]      8:     0x56315e7ed4a4 - std::sys_common::backtrace::print::h481458abb3873c7c
[INFO] [stderr]                                  at /rustc/9b9e20bc79549d80ab413f49d990713851172cc1/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]      9:     0x56315e7eea07 - std::panicking::default_hook::{{closure}}::hab6cfb4b0cd9f79f
[INFO] [stderr]     10:     0x56315e7ee769 - std::panicking::default_hook::hc6fdae717e3ac78e
[INFO] [stderr]                                  at /rustc/9b9e20bc79549d80ab413f49d990713851172cc1/library/std/src/panicking.rs:292:9
[INFO] [stderr]     11:     0x56315e7eee98 - std::panicking::rust_panic_with_hook::h9f8a6061ef6570b5
[INFO] [stderr]                                  at /rustc/9b9e20bc79549d80ab413f49d990713851172cc1/library/std/src/panicking.rs:781:13
[INFO] [stderr]     12:     0x56315e7eed72 - std::panicking::begin_panic_handler::{{closure}}::h2583e585f8199970
[INFO] [stderr]                                  at /rustc/9b9e20bc79549d80ab413f49d990713851172cc1/library/std/src/panicking.rs:659:13
[INFO] [stderr]     13:     0x56315e7edbc6 - std::sys_common::backtrace::__rust_end_short_backtrace::h632d90926151cc00
[INFO] [stderr]                                  at /rustc/9b9e20bc79549d80ab413f49d990713851172cc1/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stderr]     14:     0x56315e7eeac4 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/9b9e20bc79549d80ab413f49d990713851172cc1/library/std/src/panicking.rs:647:5
[INFO] [stderr]     15:     0x56315e7b9e55 - core::panicking::panic_fmt::he775963b85ee6e08
[INFO] [stderr]                                  at /rustc/9b9e20bc79549d80ab413f49d990713851172cc1/library/core/src/panicking.rs:72:14
[INFO] [stderr]     16:     0x56315e7ba2c3 - core::result::unwrap_failed::hd346bd79edb42f11
[INFO] [stderr]                                  at /rustc/9b9e20bc79549d80ab413f49d990713851172cc1/library/core/src/result.rs:1649:5
[INFO] [stderr]     17:     0x56315e7d0094 - build_script_gen_mime_types::main::hc079d5549fb2a660
[INFO] [stderr]     18:     0x56315e7ce553 - core::ops::function::FnOnce::call_once::h5a7d034e846d0dad
[INFO] [stderr]     19:     0x56315e7cddb6 - std::sys_common::backtrace::__rust_begin_short_backtrace::h6f577c1254f1d5fc
[INFO] [stderr]     20:     0x56315e7be969 - std::rt::lang_start::{{closure}}::haf0c64edf3aeeff4
[INFO] [stderr]     21:     0x56315e7e92c1 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::ha3049feb2f059100
[INFO] [stderr]                                  at /rustc/9b9e20bc79549d80ab413f49d990713851172cc1/library/core/src/ops/function.rs:284:13
[INFO] [stderr]     22:     0x56315e7e92c1 - std::panicking::try::do_call::hba22be99660b7e74
[INFO] [stderr]                                  at /rustc/9b9e20bc79549d80ab413f49d990713851172cc1/library/std/src/panicking.rs:554:40
[INFO] [stderr]     23:     0x56315e7e92c1 - std::panicking::try::hdfc8c0cd607c9302
[INFO] [stderr]                                  at /rustc/9b9e20bc79549d80ab413f49d990713851172cc1/library/std/src/panicking.rs:518:19
[INFO] [stderr]     24:     0x56315e7e92c1 - std::panic::catch_unwind::h57948c1cec1807ed
[INFO] [stderr]                                  at /rustc/9b9e20bc79549d80ab413f49d990713851172cc1/library/std/src/panic.rs:142:14
[INFO] [stderr]     25:     0x56315e7e92c1 - std::rt::lang_start_internal::{{closure}}::he9ecb1c49df30220
[INFO] [stderr]                                  at /rustc/9b9e20bc79549d80ab413f49d990713851172cc1/library/std/src/rt.rs:148:48
[INFO] [stderr]     26:     0x56315e7e92c1 - std::panicking::try::do_call::h272222ab12b6bc60
[INFO] [stderr]                                  at /rustc/9b9e20bc79549d80ab413f49d990713851172cc1/library/std/src/panicking.rs:554:40
[INFO] [stderr]     27:     0x56315e7e92c1 - std::panicking::try::h5d6df8f9fd041b3a
[INFO] [stderr]                                  at /rustc/9b9e20bc79549d80ab413f49d990713851172cc1/library/std/src/panicking.rs:518:19
[INFO] [stderr]     28:     0x56315e7e92c1 - std::panic::catch_unwind::h934a064d2364c53f
[INFO] [stderr]                                  at /rustc/9b9e20bc79549d80ab413f49d990713851172cc1/library/std/src/panic.rs:142:14
[INFO] [stderr]     29:     0x56315e7e92c1 - std::rt::lang_start_internal::h0a7caddcbe3f55ba
[INFO] [stderr]                                  at /rustc/9b9e20bc79549d80ab413f49d990713851172cc1/library/std/src/rt.rs:148:20
[INFO] [stderr]     30:     0x56315e7be947 - std::rt::lang_start::h7f953d73d6cdae25
[INFO] [stderr]     31:     0x56315e7d0725 - main
[INFO] [stderr]     32:     0x7f5476f75d90 - <unknown>
[INFO] [stderr]     33:     0x7f5476f75e40 - __libc_start_main
[INFO] [stderr]     34:     0x56315e7ba585 - _start
[INFO] [stderr]     35:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "aac693f9d40d7b9b6745cc5ae79361d41f855b755921717ebde4eb833ac7f229", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aac693f9d40d7b9b6745cc5ae79361d41f855b755921717ebde4eb833ac7f229", kill_on_drop: false }`
[INFO] [stdout] aac693f9d40d7b9b6745cc5ae79361d41f855b755921717ebde4eb833ac7f229