[INFO] cloning repository https://github.com/JScearcy/Rust-Koans [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JScearcy/Rust-Koans" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJScearcy%2FRust-Koans", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJScearcy%2FRust-Koans'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] cb4bceeb057657f833916c019f96605c7170382c [INFO] checking JScearcy/Rust-Koans against master#c3def263a44e07e09ae6d57abfc8650227fb4972 for pr-118833 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJScearcy%2FRust-Koans" "/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/JScearcy/Rust-Koans on toolchain c3def263a44e07e09ae6d57abfc8650227fb4972 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c3def263a44e07e09ae6d57abfc8650227fb4972" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/JScearcy/Rust-Koans [INFO] finished tweaking git repo https://github.com/JScearcy/Rust-Koans [INFO] tweaked toml for git repo https://github.com/JScearcy/Rust-Koans written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/JScearcy/Rust-Koans 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" "+c3def263a44e07e09ae6d57abfc8650227fb4972" "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 JScearcy/Rust-Koans against try#29596578cb5035fa2b7ac7fbdfea23fab38836e7 for pr-118833 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJScearcy%2FRust-Koans" "/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/JScearcy/Rust-Koans on toolchain 29596578cb5035fa2b7ac7fbdfea23fab38836e7 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+29596578cb5035fa2b7ac7fbdfea23fab38836e7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/JScearcy/Rust-Koans [INFO] finished tweaking git repo https://github.com/JScearcy/Rust-Koans [INFO] tweaked toml for git repo https://github.com/JScearcy/Rust-Koans written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/JScearcy/Rust-Koans 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" "+29596578cb5035fa2b7ac7fbdfea23fab38836e7" "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-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" "+29596578cb5035fa2b7ac7fbdfea23fab38836e7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5069d97c0aea59de27821debe1c9b3d1f6dcbe82bb3b0eebd9e503087bef6d07 [INFO] running `Command { std: "docker" "start" "-a" "5069d97c0aea59de27821debe1c9b3d1f6dcbe82bb3b0eebd9e503087bef6d07", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5069d97c0aea59de27821debe1c9b3d1f6dcbe82bb3b0eebd9e503087bef6d07", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5069d97c0aea59de27821debe1c9b3d1f6dcbe82bb3b0eebd9e503087bef6d07", kill_on_drop: false }` [INFO] [stdout] 5069d97c0aea59de27821debe1c9b3d1f6dcbe82bb3b0eebd9e503087bef6d07 [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" "+29596578cb5035fa2b7ac7fbdfea23fab38836e7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ca8cef987e61c7accdfd7aa94a0794a8eee79d93bdb4e24177b7f8615212d288 [INFO] running `Command { std: "docker" "start" "-a" "ca8cef987e61c7accdfd7aa94a0794a8eee79d93bdb4e24177b7f8615212d288", kill_on_drop: false }` [INFO] [stderr] Compiling koans v0.2.0 (/opt/rustwide/workdir) [INFO] [stderr] error: failed to run custom build command for `koans v0.2.0 (/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/koans-db4b646b69e25643/build-script-build` (exit status: 101) [INFO] [stderr] --- stderr [INFO] [stderr] thread 'main' panicked at build.rs:7:10: [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: 0x564fc910eadc - std::backtrace_rs::backtrace::libunwind::trace::h63347479ad748569 [INFO] [stderr] at /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5 [INFO] [stderr] 1: 0x564fc910eadc - std::backtrace_rs::backtrace::trace_unsynchronized::hc801c493e3bb266f [INFO] [stderr] at /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x564fc910eadc - std::sys_common::backtrace::_print_fmt::h648af5b14ae24301 [INFO] [stderr] at /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/std/src/sys_common/backtrace.rs:68:5 [INFO] [stderr] 3: 0x564fc910eadc - ::fmt::hf5eca0cb34e3e217 [INFO] [stderr] at /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/std/src/sys_common/backtrace.rs:44:22 [INFO] [stderr] 4: 0x564fc912e360 - core::fmt::rt::Argument::fmt::h9300d723c404d72e [INFO] [stderr] at /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/core/src/fmt/rt.rs:142:9 [INFO] [stderr] 5: 0x564fc912e360 - core::fmt::write::h7c07e94e4986038d [INFO] [stderr] at /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/core/src/fmt/mod.rs:1120:17 [INFO] [stderr] 6: 0x564fc910cf8f - std::io::Write::write_fmt::h7bbeda866495e595 [INFO] [stderr] at /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/std/src/io/mod.rs:1810:15 [INFO] [stderr] 7: 0x564fc910e8c4 - std::sys_common::backtrace::_print::h4b69e407778123dd [INFO] [stderr] at /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/std/src/sys_common/backtrace.rs:47:5 [INFO] [stderr] 8: 0x564fc910e8c4 - std::sys_common::backtrace::print::h5435dd9b8a4d0f56 [INFO] [stderr] at /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/std/src/sys_common/backtrace.rs:34:9 [INFO] [stderr] 9: 0x564fc910fdd7 - std::panicking::default_hook::{{closure}}::h5da500bdec518a9d [INFO] [stderr] 10: 0x564fc910fb3f - std::panicking::default_hook::hd2d26162fa60674b [INFO] [stderr] at /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/std/src/panicking.rs:292:9 [INFO] [stderr] 11: 0x564fc9110258 - std::panicking::rust_panic_with_hook::h66fd582ae0f6b587 [INFO] [stderr] at /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/std/src/panicking.rs:779:13 [INFO] [stderr] 12: 0x564fc911013e - std::panicking::begin_panic_handler::{{closure}}::h4d6bcdd8edcbdb6b [INFO] [stderr] at /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/std/src/panicking.rs:657:13 [INFO] [stderr] 13: 0x564fc910efa6 - std::sys_common::backtrace::__rust_end_short_backtrace::he639fceb8fb859a0 [INFO] [stderr] at /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/std/src/sys_common/backtrace.rs:171:18 [INFO] [stderr] 14: 0x564fc910fea2 - rust_begin_unwind [INFO] [stderr] at /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/std/src/panicking.rs:645:5 [INFO] [stderr] 15: 0x564fc90f2df5 - core::panicking::panic_fmt::hb4243698d5b88f16 [INFO] [stderr] at /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/core/src/panicking.rs:72:14 [INFO] [stderr] 16: 0x564fc90f3273 - core::result::unwrap_failed::hb69d72398b7c595e [INFO] [stderr] at /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/core/src/result.rs:1649:5 [INFO] [stderr] 17: 0x564fc90f3da4 - core::result::Result::unwrap::h820c5d87dd75a0ea [INFO] [stderr] 18: 0x564fc90f4024 - build_script_build::main::h507a79c625c09b4f [INFO] [stderr] 19: 0x564fc90f3ba3 - core::ops::function::FnOnce::call_once::h085d10fe6f98a36f [INFO] [stderr] 20: 0x564fc90f3606 - std::sys_common::backtrace::__rust_begin_short_backtrace::h121c5f122e2da79f [INFO] [stderr] 21: 0x564fc90f3b69 - std::rt::lang_start::{{closure}}::h154db13aea0c5804 [INFO] [stderr] 22: 0x564fc910aa07 - core::ops::function::impls:: for &F>::call_once::hc7d76831d23511cb [INFO] [stderr] at /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/core/src/ops/function.rs:284:13 [INFO] [stderr] 23: 0x564fc910aa07 - std::panicking::try::do_call::h5c1ed925633b8590 [INFO] [stderr] at /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/std/src/panicking.rs:552:40 [INFO] [stderr] 24: 0x564fc910aa07 - std::panicking::try::h8f7ed9ca8e537dd0 [INFO] [stderr] at /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/std/src/panicking.rs:516:19 [INFO] [stderr] 25: 0x564fc910aa07 - std::panic::catch_unwind::ha8997f4abb344c24 [INFO] [stderr] at /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/std/src/panic.rs:142:14 [INFO] [stderr] 26: 0x564fc910aa07 - std::rt::lang_start_internal::{{closure}}::had934a84be69844c [INFO] [stderr] at /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/std/src/rt.rs:148:48 [INFO] [stderr] 27: 0x564fc910aa07 - std::panicking::try::do_call::h95861ffcb4dea01b [INFO] [stderr] at /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/std/src/panicking.rs:552:40 [INFO] [stderr] 28: 0x564fc910aa07 - std::panicking::try::he42664f5e7ede8de [INFO] [stderr] at /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/std/src/panicking.rs:516:19 [INFO] [stderr] 29: 0x564fc910aa07 - std::panic::catch_unwind::h24fd2bbdab8a19bd [INFO] [stderr] at /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/std/src/panic.rs:142:14 [INFO] [stderr] 30: 0x564fc910aa07 - std::rt::lang_start_internal::hc31f5223e46376ff [INFO] [stderr] at /rustc/29596578cb5035fa2b7ac7fbdfea23fab38836e7/library/std/src/rt.rs:148:20 [INFO] [stderr] 31: 0x564fc90f3b47 - std::rt::lang_start::hf1ae2696b7d5efd0 [INFO] [stderr] 32: 0x564fc90f4055 - main [INFO] [stderr] 33: 0x7fe761a5dd90 - [INFO] [stderr] 34: 0x7fe761a5de40 - __libc_start_main [INFO] [stderr] 35: 0x564fc90f3535 - _start [INFO] [stderr] 36: 0x0 - [INFO] running `Command { std: "docker" "inspect" "ca8cef987e61c7accdfd7aa94a0794a8eee79d93bdb4e24177b7f8615212d288", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ca8cef987e61c7accdfd7aa94a0794a8eee79d93bdb4e24177b7f8615212d288", kill_on_drop: false }` [INFO] [stdout] ca8cef987e61c7accdfd7aa94a0794a8eee79d93bdb4e24177b7f8615212d288