[INFO] cloning repository https://github.com/jonfk/dropbox_rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jonfk/dropbox_rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonfk%2Fdropbox_rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonfk%2Fdropbox_rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 5bdda0f3f59196a68ed39de056a6bd0ceefb1d8f [INFO] testing jonfk/dropbox_rs against beta-2025-09-21 for beta-1.91-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonfk%2Fdropbox_rs" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/jonfk/dropbox_rs [INFO] finished tweaking git repo https://github.com/jonfk/dropbox_rs [INFO] tweaked toml for git repo https://github.com/jonfk/dropbox_rs written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/jonfk/dropbox_rs on toolchain beta-2025-09-21 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/jonfk/dropbox_rs 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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7ac781622a869feb76cb12aa20760eef31971a72613f24dda073bd9f42508c7f [INFO] running `Command { std: "docker" "start" "-a" "7ac781622a869feb76cb12aa20760eef31971a72613f24dda073bd9f42508c7f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7ac781622a869feb76cb12aa20760eef31971a72613f24dda073bd9f42508c7f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7ac781622a869feb76cb12aa20760eef31971a72613f24dda073bd9f42508c7f", kill_on_drop: false }` [INFO] [stdout] 7ac781622a869feb76cb12aa20760eef31971a72613f24dda073bd9f42508c7f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e30b3dcc00afb99d47d0d207cb7ed27f74ac9ff4267b84e5889db8c096a82500 [INFO] running `Command { std: "docker" "start" "-a" "e30b3dcc00afb99d47d0d207cb7ed27f74ac9ff4267b84e5889db8c096a82500", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] Compiling libc v0.2.31 [INFO] [stderr] Compiling cc v1.0.0 [INFO] [stderr] Compiling version_check v0.1.3 [INFO] [stderr] Compiling cfg-if v0.1.2 [INFO] [stderr] Compiling byteorder v1.1.0 [INFO] [stderr] Compiling futures v0.1.16 [INFO] [stderr] Compiling pkg-config v0.3.9 [INFO] [stderr] Compiling semver v0.1.20 [INFO] [stderr] Compiling siphasher v0.2.2 [INFO] [stderr] Compiling log v0.3.8 [INFO] [stderr] Compiling lazycell v0.5.1 [INFO] [stderr] Compiling slab v0.3.0 [INFO] [stderr] Compiling scoped-tls v0.1.0 [INFO] [stderr] Compiling openssl v0.9.19 [INFO] [stderr] Compiling matches v0.1.6 [INFO] [stderr] Compiling percent-encoding v1.0.0 [INFO] [stderr] Compiling bitflags v0.9.1 [INFO] [stderr] Compiling foreign-types v0.2.0 [INFO] [stderr] Compiling lazy_static v0.2.8 [INFO] [stderr] Compiling unicode-bidi v0.3.4 [INFO] [stderr] Compiling unicode-xid v0.0.4 [INFO] [stderr] Compiling unicode-normalization v0.1.5 [INFO] [stderr] Compiling safemem v0.2.0 [INFO] [stderr] Compiling rand v0.3.16 [INFO] [stderr] Compiling unicase v1.4.2 [INFO] [stderr] Compiling iovec v0.1.0 [INFO] [stderr] Compiling net2 v0.2.31 [INFO] [stderr] Compiling rustc_version v0.1.7 [INFO] [stderr] Compiling num_cpus v1.6.2 [INFO] [stderr] Compiling take v0.1.0 [INFO] [stderr] Compiling smallvec v0.2.1 [INFO] [stderr] Compiling time v0.1.38 [INFO] [stderr] Compiling synom v0.11.3 [INFO] [stderr] Compiling serde v1.0.15 [INFO] [stderr] Compiling bytes v0.4.5 [INFO] [stderr] Compiling base64 v0.6.0 [INFO] [stderr] Compiling quote v0.3.15 [INFO] [stderr] Compiling itoa v0.3.4 [INFO] [stderr] Compiling unicase v2.0.0 [INFO] [stderr] Compiling mio v0.6.10 [INFO] [stderr] Compiling language-tags v0.2.2 [INFO] [stderr] Compiling phf_shared v0.7.21 [INFO] [stderr] Compiling httparse v1.2.3 [INFO] [stderr] Compiling dtoa v0.4.2 [INFO] [stderr] Compiling adler32 v1.0.2 [INFO] [stderr] Compiling idna v0.1.4 [INFO] [stderr] Compiling syn v0.11.11 [INFO] [stderr] Compiling phf v0.7.21 [INFO] [stderr] Compiling rustc-demangle v0.1.5 [INFO] [stderr] Compiling num-traits v0.1.40 [INFO] [stderr] Compiling phf_generator v0.7.21 [INFO] [stderr] Compiling uuid v0.5.1 [INFO] [stderr] Compiling libflate v0.1.11 [INFO] [stderr] Compiling phf_codegen v0.7.21 [INFO] [stderr] Compiling openssl-sys v0.9.19 [INFO] [stderr] Compiling backtrace-sys v0.1.14 [INFO] [stderr] Compiling mime v0.3.4 [INFO] [stderr] Compiling mime_guess v2.0.0-alpha.2 [INFO] [stderr] error: failed to run custom build command for `mime_guess v2.0.0-alpha.2` [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-86bd509bb531b4fc/build-script-gen_mime_types` (exit status: 101) [INFO] [stderr] --- stderr [INFO] [stderr] [INFO] [stderr] thread 'main' (701) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/mime_guess-2.0.0-alpha.2/src/gen_mime_types.rs:22:67: [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: 0x647dee686df2 - std::backtrace_rs::backtrace::libunwind::trace::hcab59e1e990fdc24 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stderr] 1: 0x647dee686df2 - std::backtrace_rs::backtrace::trace_unsynchronized::he24cc57f3d2f47b7 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stderr] 2: 0x647dee686df2 - std::sys::backtrace::_print_fmt::hf8d65ede198eeb54 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:66:9 [INFO] [stderr] 3: 0x647dee686df2 - ::fmt::h67edf0e4d33c343c [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:39:26 [INFO] [stderr] 4: 0x647dee69634f - core::fmt::rt::Argument::fmt::hef94184842aeafdd [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/fmt/rt.rs:173:76 [INFO] [stderr] 5: 0x647dee69634f - core::fmt::write::hcf0c66b48a8fa606 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/fmt/mod.rs:1468:25 [INFO] [stderr] 6: 0x647dee6647c1 - std::io::default_write_fmt::h1ecb8c7cfa7da481 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/io/mod.rs:639:11 [INFO] [stderr] 7: 0x647dee6647c1 - std::io::Write::write_fmt::h051fe4a9e4fdbf48 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/io/mod.rs:1954:13 [INFO] [stderr] 8: 0x647dee66a192 - std::sys::backtrace::BacktraceLock::print::h07e5435aa717b414 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:42:9 [INFO] [stderr] 9: 0x647dee66bc2c - std::panicking::default_hook::{{closure}}::h91001850288db5f7 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:301:27 [INFO] [stderr] 10: 0x647dee66ba86 - std::panicking::default_hook::h2346dbb704ef5512 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:328:9 [INFO] [stderr] 11: 0x647dee66c2b5 - std::panicking::panic_with_hook::hd2b063a6090d23a4 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:834:13 [INFO] [stderr] 12: 0x647dee66c14a - std::panicking::panic_handler::{{closure}}::he666d95f139a333e [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:707:13 [INFO] [stderr] 13: 0x647dee66a2c9 - std::sys::backtrace::__rust_end_short_backtrace::h631ad224854ebee5 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:174:18 [INFO] [stderr] 14: 0x647dee6591bd - __rustc[1d67440d6e82e4f]::rust_begin_unwind [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:698:5 [INFO] [stderr] 15: 0x647dee699840 - core::panicking::panic_fmt::h420ddb7fd73daf53 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panicking.rs:75:14 [INFO] [stderr] 16: 0x647dee698f46 - core::result::unwrap_failed::hdde076be853d034f [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/result.rs:1855:5 [INFO] [stderr] 17: 0x647dee651058 - build_script_gen_mime_types::main::h53edd159353a69b9 [INFO] [stderr] 18: 0x647dee642b83 - core::ops::function::FnOnce::call_once::h3a407ce9b8a9038e [INFO] [stderr] 19: 0x647dee6457d6 - std::sys::backtrace::__rust_begin_short_backtrace::ha68a68b63d978336 [INFO] [stderr] 20: 0x647dee64c969 - std::rt::lang_start::{{closure}}::h9dc3ee41b9c936ca [INFO] [stderr] 21: 0x647dee665c00 - core::ops::function::impls:: for &F>::call_once::h4967fb77e0dfb65c [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/ops/function.rs:287:21 [INFO] [stderr] 22: 0x647dee665c00 - std::panicking::catch_unwind::do_call::hf7e87675c3e14c23 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:590:40 [INFO] [stderr] 23: 0x647dee665c00 - std::panicking::catch_unwind::h26f0e342004b5114 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:553:19 [INFO] [stderr] 24: 0x647dee665c00 - std::panic::catch_unwind::h9ee33ca17775d897 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panic.rs:359:14 [INFO] [stderr] 25: 0x647dee665c00 - std::rt::lang_start_internal::{{closure}}::h243ba3495fa13cf8 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/rt.rs:175:24 [INFO] [stderr] 26: 0x647dee665c00 - std::panicking::catch_unwind::do_call::h819db0a7788e7259 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:590:40 [INFO] [stderr] 27: 0x647dee665c00 - std::panicking::catch_unwind::h23e08fb4a7b9f405 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:553:19 [INFO] [stderr] 28: 0x647dee665c00 - std::panic::catch_unwind::h7ca3d9eabb6135ff [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panic.rs:359:14 [INFO] [stderr] 29: 0x647dee665c00 - std::rt::lang_start_internal::h06ad7395f4fda8d7 [INFO] [stderr] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/rt.rs:171:5 [INFO] [stderr] 30: 0x647dee64c951 - std::rt::lang_start::h65644daaf0c16a31 [INFO] [stderr] 31: 0x647dee652b05 - main [INFO] [stderr] 32: 0x73ca1b2181ca - [INFO] [stderr] 33: 0x73ca1b21828b - __libc_start_main [INFO] [stderr] 34: 0x647dee633eb5 - _start [INFO] [stderr] 35: 0x0 - [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "e30b3dcc00afb99d47d0d207cb7ed27f74ac9ff4267b84e5889db8c096a82500", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e30b3dcc00afb99d47d0d207cb7ed27f74ac9ff4267b84e5889db8c096a82500", kill_on_drop: false }` [INFO] [stdout] e30b3dcc00afb99d47d0d207cb7ed27f74ac9ff4267b84e5889db8c096a82500