[INFO] fetching crate rustdemo 0.1.0... [INFO] checking rustdemo-0.1.0 against try#b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f for pr-76104 [INFO] extracting crate rustdemo 0.1.0 into /workspace/builds/worker-11/source [INFO] validating manifest of crates.io crate rustdemo 0.1.0 on toolchain b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate rustdemo 0.1.0 [INFO] finished tweaking crates.io crate rustdemo 0.1.0 [INFO] tweaked toml for crates.io crate rustdemo 0.1.0 written to /workspace/builds/worker-11/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 097f3faee6cf93b8cb4b9500c554e518e6b26acf5d99ae24c8d872430078536b [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" "097f3faee6cf93b8cb4b9500c554e518e6b26acf5d99ae24c8d872430078536b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "097f3faee6cf93b8cb4b9500c554e518e6b26acf5d99ae24c8d872430078536b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "097f3faee6cf93b8cb4b9500c554e518e6b26acf5d99ae24c8d872430078536b", kill_on_drop: false }` [INFO] [stdout] 097f3faee6cf93b8cb4b9500c554e518e6b26acf5d99ae24c8d872430078536b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 985c7d4296ecd2c421938585bc41022d5f982f65bbbe644a1ea7a6fa5d2f235e [INFO] running `Command { std: "docker" "start" "-a" "985c7d4296ecd2c421938585bc41022d5f982f65bbbe644a1ea7a6fa5d2f235e", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Checking rustc-serialize v0.3.24 [INFO] [stderr] Checking libc v0.2.77 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling num-integer v0.1.43 [INFO] [stderr] Compiling num-iter v0.1.41 [INFO] [stderr] Compiling time v0.1.44 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Compiling rustdemo v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking rand v0.3.23 [INFO] [stderr] error: failed to run custom build command for `rustdemo v0.1.0 (/opt/rustwide/workdir)` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/build/rustdemo-f73958b0e20ec4b9/build-script-build` (exit code: 101) [INFO] [stderr] --- stderr [INFO] [stderr] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', build.rs:9:42 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x5573228e8f40 - std::backtrace_rs::backtrace::libunwind::trace::h14e81b0c16b543a7 [INFO] [stderr] at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96 [INFO] [stderr] 1: 0x5573228e8f40 - std::backtrace_rs::backtrace::trace_unsynchronized::hc9e39e172835ff32 [INFO] [stderr] at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/../../backtrace/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x5573228e8f40 - std::sys_common::backtrace::_print_fmt::h31994df1c8c77b8f [INFO] [stderr] at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/sys_common/backtrace.rs:79 [INFO] [stderr] 3: 0x5573228e8f40 - ::fmt::he74e98acff43ec99 [INFO] [stderr] at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/sys_common/backtrace.rs:58 [INFO] [stderr] 4: 0x55732290200c - core::fmt::write::h1857a60b204f1b6a [INFO] [stderr] at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/core/src/fmt/mod.rs:1080 [INFO] [stderr] 5: 0x5573228e77d7 - std::io::Write::write_fmt::hea6289e6649ff508 [INFO] [stderr] at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/io/mod.rs:1517 [INFO] [stderr] 6: 0x5573228eb050 - std::sys_common::backtrace::_print::h8cc65937fea24014 [INFO] [stderr] at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/sys_common/backtrace.rs:61 [INFO] [stderr] 7: 0x5573228eb050 - std::sys_common::backtrace::print::hff6a0ebb96535e34 [INFO] [stderr] at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/sys_common/backtrace.rs:48 [INFO] [stderr] 8: 0x5573228eb050 - std::panicking::default_hook::{{closure}}::h71b9700c5dda1b1d [INFO] [stderr] at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/panicking.rs:208 [INFO] [stderr] 9: 0x5573228ead9c - std::panicking::default_hook::h0c46e634c06c69b6 [INFO] [stderr] at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/panicking.rs:227 [INFO] [stderr] 10: 0x5573228eb6b3 - std::panicking::rust_panic_with_hook::he52576a0c2093334 [INFO] [stderr] at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/panicking.rs:577 [INFO] [stderr] 11: 0x5573228eb289 - std::panicking::begin_panic_handler::{{closure}}::h411c800b810762b2 [INFO] [stderr] at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/panicking.rs:484 [INFO] [stderr] 12: 0x5573228e93cc - std::sys_common::backtrace::__rust_end_short_backtrace::ha657a272019e6aad [INFO] [stderr] at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/sys_common/backtrace.rs:153 [INFO] [stderr] 13: 0x5573228eb249 - rust_begin_unwind [INFO] [stderr] at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/panicking.rs:483 [INFO] [stderr] 14: 0x557322901331 - core::panicking::panic_fmt::hb15d6f55e8472f62 [INFO] [stderr] at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/core/src/panicking.rs:85 [INFO] [stderr] 15: 0x557322901153 - core::option::expect_none_failed::he492a18657d97593 [INFO] [stderr] at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/core/src/option.rs:1221 [INFO] [stderr] 16: 0x5573228cc2f9 - core::result::Result::unwrap::h53d3306118e04945 [INFO] [stderr] at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/core/src/result.rs:973 [INFO] [stderr] 17: 0x5573228cc826 - build_script_build::main::hef39b89448869af5 [INFO] [stderr] at /opt/rustwide/workdir/build.rs:9 [INFO] [stderr] 18: 0x5573228cc43b - core::ops::function::FnOnce::call_once::he87820f0ac238ff5 [INFO] [stderr] at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/core/src/ops/function.rs:227 [INFO] [stderr] 19: 0x5573228cc61e - std::sys_common::backtrace::__rust_begin_short_backtrace::h04bb881c1dc3ef56 [INFO] [stderr] at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/sys_common/backtrace.rs:137 [INFO] [stderr] 20: 0x5573228cc3b1 - std::rt::lang_start::{{closure}}::h6d2febb3fa8b2b2e [INFO] [stderr] at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/rt.rs:66 [INFO] [stderr] 21: 0x5573228ebab1 - core::ops::function::impls:: for &F>::call_once::h009d20b8a620bf60 [INFO] [stderr] at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/core/src/ops/function.rs:259 [INFO] [stderr] 22: 0x5573228ebab1 - std::panicking::try::do_call::h09431c39e2107c90 [INFO] [stderr] at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/panicking.rs:381 [INFO] [stderr] 23: 0x5573228ebab1 - std::panicking::try::he27cf60b958af343 [INFO] [stderr] at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/panicking.rs:345 [INFO] [stderr] 24: 0x5573228ebab1 - std::panic::catch_unwind::h7b646b0041dc5591 [INFO] [stderr] at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/panic.rs:382 [INFO] [stderr] 25: 0x5573228ebab1 - std::rt::lang_start_internal::hdad6c98af1e4747e [INFO] [stderr] at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/rt.rs:51 [INFO] [stderr] 26: 0x5573228cc387 - std::rt::lang_start::h4539b06c4a340311 [INFO] [stderr] at /rustc/b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f/library/std/src/rt.rs:65 [INFO] [stderr] 27: 0x5573228ccaea - main [INFO] [stderr] 28: 0x7fd2bb4600b3 - __libc_start_main [INFO] [stderr] 29: 0x5573228cc0ae - _start [INFO] [stderr] 30: 0x0 - [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "985c7d4296ecd2c421938585bc41022d5f982f65bbbe644a1ea7a6fa5d2f235e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "985c7d4296ecd2c421938585bc41022d5f982f65bbbe644a1ea7a6fa5d2f235e", kill_on_drop: false }` [INFO] [stdout] 985c7d4296ecd2c421938585bc41022d5f982f65bbbe644a1ea7a6fa5d2f235e