[INFO] cloning repository https://github.com/nichol20/rust-server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nichol20/rust-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnichol20%2Frust-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnichol20%2Frust-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9edce89386b38a239c9e1eb94ab7451acb335787
[INFO] checking nichol20/rust-server against try#987a165cfab916796a8315782b83ac460a651ce2 for pr-145262
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnichol20%2Frust-server" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/nichol20/rust-server
[INFO] finished tweaking git repo https://github.com/nichol20/rust-server
[INFO] tweaked toml for git repo https://github.com/nichol20/rust-server written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/nichol20/rust-server on toolchain 987a165cfab916796a8315782b83ac460a651ce2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+987a165cfab916796a8315782b83ac460a651ce2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/nichol20/rust-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" "+987a165cfab916796a8315782b83ac460a651ce2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+987a165cfab916796a8315782b83ac460a651ce2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] caa58f67de572269e4f8d049a2d0b6099ee7b8f3715e9a5ff319b95569e6b356
[INFO] running `Command { std: "docker" "start" "-a" "caa58f67de572269e4f8d049a2d0b6099ee7b8f3715e9a5ff319b95569e6b356", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "caa58f67de572269e4f8d049a2d0b6099ee7b8f3715e9a5ff319b95569e6b356", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "caa58f67de572269e4f8d049a2d0b6099ee7b8f3715e9a5ff319b95569e6b356", kill_on_drop: false }`
[INFO] [stdout] caa58f67de572269e4f8d049a2d0b6099ee7b8f3715e9a5ff319b95569e6b356
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+987a165cfab916796a8315782b83ac460a651ce2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c1ac2760a8dbdadb28270ee8b904e717376af8fcd847d973e4e51d57bc9149c1
[INFO] running `Command { std: "docker" "start" "-a" "c1ac2760a8dbdadb28270ee8b904e717376af8fcd847d973e4e51d57bc9149c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `rust-server v0.1.0 (/opt/rustwide/workdir)`
[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/rust-server-420095a5c4c6140d/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   gcc -O2 -Wall -Wextra -fPIC -c mathlib.c -o mathlib.o
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Assembler messages:
[INFO] [stderr]   Fatal error: can't create mathlib.o: Read-only file system
[INFO] [stderr]   make: *** [makefile:21: mathlib.o] Error 1
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (37) panicked at build.rs:11:5:
[INFO] [stderr]   assertion failed: status.success()
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5fd378a97d32 - std::backtrace_rs::backtrace::libunwind::trace::hf09821d01bcdd165
[INFO] [stderr]                                  at /rustc/987a165cfab916796a8315782b83ac460a651ce2/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x5fd378a97d32 - std::backtrace_rs::backtrace::trace_unsynchronized::h67c79827ef895053
[INFO] [stderr]                                  at /rustc/987a165cfab916796a8315782b83ac460a651ce2/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x5fd378a97d32 - std::sys::backtrace::_print_fmt::hfd1b8a3072c0a17a
[INFO] [stderr]                                  at /rustc/987a165cfab916796a8315782b83ac460a651ce2/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x5fd378a97d32 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h619153f336a61421
[INFO] [stderr]                                  at /rustc/987a165cfab916796a8315782b83ac460a651ce2/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x5fd378ab6bef - core::fmt::rt::Argument::fmt::h4d1bc03cd485b439
[INFO] [stderr]                                  at /rustc/987a165cfab916796a8315782b83ac460a651ce2/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]      5:     0x5fd378ab6bef - core::fmt::write::hfe855cd62e0d157c
[INFO] [stderr]                                  at /rustc/987a165cfab916796a8315782b83ac460a651ce2/library/core/src/fmt/mod.rs:1468:25
[INFO] [stderr]      6:     0x5fd378a95703 - std::io::default_write_fmt::h540934b92f4dc07d
[INFO] [stderr]                                  at /rustc/987a165cfab916796a8315782b83ac460a651ce2/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x5fd378a95703 - std::io::Write::write_fmt::h6539d35e01d79de7
[INFO] [stderr]                                  at /rustc/987a165cfab916796a8315782b83ac460a651ce2/library/std/src/io/mod.rs:1954:13
[INFO] [stderr]      8:     0x5fd378a97b82 - std::sys::backtrace::BacktraceLock::print::h6cb91e1789a7cbc5
[INFO] [stderr]                                  at /rustc/987a165cfab916796a8315782b83ac460a651ce2/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x5fd378a98bd4 - std::panicking::default_hook::{{closure}}::hd5a86dcf388d8d3e
[INFO] [stderr]                                  at /rustc/987a165cfab916796a8315782b83ac460a651ce2/library/std/src/panicking.rs:301:27
[INFO] [stderr]     10:     0x5fd378a989f5 - std::panicking::default_hook::h4da1cae02279a3fb
[INFO] [stderr]                                  at /rustc/987a165cfab916796a8315782b83ac460a651ce2/library/std/src/panicking.rs:328:9
[INFO] [stderr]     11:     0x5fd378a99505 - std::panicking::panic_with_hook::h8027b60c5a270458
[INFO] [stderr]                                  at /rustc/987a165cfab916796a8315782b83ac460a651ce2/library/std/src/panicking.rs:834:13
[INFO] [stderr]     12:     0x5fd378a99366 - std::panicking::panic_handler::{{closure}}::hd4ba090b6289841c
[INFO] [stderr]                                  at /rustc/987a165cfab916796a8315782b83ac460a651ce2/library/std/src/panicking.rs:700:13
[INFO] [stderr]     13:     0x5fd378a98229 - std::sys::backtrace::__rust_end_short_backtrace::h23f67b4a68a4195c
[INFO] [stderr]                                  at /rustc/987a165cfab916796a8315782b83ac460a651ce2/library/std/src/sys/backtrace.rs:174:18
[INFO] [stderr]     14:     0x5fd378a9902d - __rustc[c0acf28cc60a6f1]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/987a165cfab916796a8315782b83ac460a651ce2/library/std/src/panicking.rs:698:5
[INFO] [stderr]     15:     0x5fd378ab5eb0 - core::panicking::panic_fmt::hf3a3c66bb320b838
[INFO] [stderr]                                  at /rustc/987a165cfab916796a8315782b83ac460a651ce2/library/core/src/panicking.rs:75:14
[INFO] [stderr]     16:     0x5fd378ab5f3c - core::panicking::panic::hd8fdb90397ad81f7
[INFO] [stderr]                                  at /rustc/987a165cfab916796a8315782b83ac460a651ce2/library/core/src/panicking.rs:145:5
[INFO] [stderr]     17:     0x5fd378a72a52 - build_script_build::main::h533f96dfdc80e8b2
[INFO] [stderr]     18:     0x5fd378a6fda3 - core::ops::function::FnOnce::call_once::hb3b17645ac44d386
[INFO] [stderr]     19:     0x5fd378a6fa56 - std::sys::backtrace::__rust_begin_short_backtrace::h1776a63d24b52241
[INFO] [stderr]     20:     0x5fd378a6f919 - std::rt::lang_start::{{closure}}::h817f8b48ac5bbf5c
[INFO] [stderr]     21:     0x5fd378a92420 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h8df283588f0e8796
[INFO] [stderr]                                  at /rustc/987a165cfab916796a8315782b83ac460a651ce2/library/core/src/ops/function.rs:290:21
[INFO] [stderr]     22:     0x5fd378a92420 - std::panicking::catch_unwind::do_call::h8b4fc237972c8899
[INFO] [stderr]                                  at /rustc/987a165cfab916796a8315782b83ac460a651ce2/library/std/src/panicking.rs:590:40
[INFO] [stderr]     23:     0x5fd378a92420 - std::panicking::catch_unwind::hc230a5364e3a7c99
[INFO] [stderr]                                  at /rustc/987a165cfab916796a8315782b83ac460a651ce2/library/std/src/panicking.rs:553:19
[INFO] [stderr]     24:     0x5fd378a92420 - std::panic::catch_unwind::hc42ade884023f93a
[INFO] [stderr]                                  at /rustc/987a165cfab916796a8315782b83ac460a651ce2/library/std/src/panic.rs:357:14
[INFO] [stderr]     25:     0x5fd378a92420 - std::rt::lang_start_internal::{{closure}}::h01cd23081fcd9a8f
[INFO] [stderr]                                  at /rustc/987a165cfab916796a8315782b83ac460a651ce2/library/std/src/rt.rs:175:24
[INFO] [stderr]     26:     0x5fd378a92420 - std::panicking::catch_unwind::do_call::h32191539977a2702
[INFO] [stderr]                                  at /rustc/987a165cfab916796a8315782b83ac460a651ce2/library/std/src/panicking.rs:590:40
[INFO] [stderr]     27:     0x5fd378a92420 - std::panicking::catch_unwind::h9ba2739a9cccf76b
[INFO] [stderr]                                  at /rustc/987a165cfab916796a8315782b83ac460a651ce2/library/std/src/panicking.rs:553:19
[INFO] [stderr]     28:     0x5fd378a92420 - std::panic::catch_unwind::ha9fe4986aae0684b
[INFO] [stderr]                                  at /rustc/987a165cfab916796a8315782b83ac460a651ce2/library/std/src/panic.rs:357:14
[INFO] [stderr]     29:     0x5fd378a92420 - std::rt::lang_start_internal::hc23d74ec965618a5
[INFO] [stderr]                                  at /rustc/987a165cfab916796a8315782b83ac460a651ce2/library/std/src/rt.rs:171:5
[INFO] [stderr]     30:     0x5fd378a6f901 - std::rt::lang_start::h76342f0a2f05eab7
[INFO] [stderr]     31:     0x5fd378a72c75 - main
[INFO] [stderr]     32:     0x779db55771ca - <unknown>
[INFO] [stderr]     33:     0x779db557728b - __libc_start_main
[INFO] [stderr]     34:     0x5fd378a6eac5 - _start
[INFO] [stderr]     35:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "c1ac2760a8dbdadb28270ee8b904e717376af8fcd847d973e4e51d57bc9149c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1ac2760a8dbdadb28270ee8b904e717376af8fcd847d973e4e51d57bc9149c1", kill_on_drop: false }`
[INFO] [stdout] c1ac2760a8dbdadb28270ee8b904e717376af8fcd847d973e4e51d57bc9149c1