[INFO] fetching crate jargon 0.2.5... [INFO] testing jargon-0.2.5 against beta-2020-07-24 for beta-1.46-1 [INFO] extracting crate jargon 0.2.5 into /workspace/builds/worker-14/source [INFO] validating manifest of crates.io crate jargon 0.2.5 on toolchain beta-2020-07-24 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate jargon 0.2.5 [INFO] finished tweaking crates.io crate jargon 0.2.5 [INFO] tweaked toml for crates.io crate jargon 0.2.5 written to /workspace/builds/worker-14/source/Cargo.toml [INFO] crate crates.io crate jargon 0.2.5 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 69f56c808e6abd37a06633bf5c1a2440f1dbd445852262ffcefe3958850db213 [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" "69f56c808e6abd37a06633bf5c1a2440f1dbd445852262ffcefe3958850db213", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "69f56c808e6abd37a06633bf5c1a2440f1dbd445852262ffcefe3958850db213", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "69f56c808e6abd37a06633bf5c1a2440f1dbd445852262ffcefe3958850db213", kill_on_drop: false }` [INFO] [stdout] 69f56c808e6abd37a06633bf5c1a2440f1dbd445852262ffcefe3958850db213 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b174b5715c832679d69253ee20bf303212afdf27adfba654b529cf5626eb3698 [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" "b174b5715c832679d69253ee20bf303212afdf27adfba654b529cf5626eb3698", kill_on_drop: false }` [INFO] [stderr] Compiling jargon v0.2.5 (/opt/rustwide/workdir) [INFO] [stderr] error: failed to run custom build command for `jargon v0.2.5 (/opt/rustwide/workdir)` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/build/jargon-809b43190c483fe3/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:65:10 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x5650947d7a25 - backtrace::backtrace::libunwind::trace::h5e2646fa3eddf2ea [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86 [INFO] [stderr] 1: 0x5650947d7a25 - backtrace::backtrace::trace_unsynchronized::hb95dd7f77ce47877 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x5650947d7a25 - std::sys_common::backtrace::_print_fmt::h5e71b67af43fd70d [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stderr] 3: 0x5650947d7a25 - ::fmt::hdb4a83d2b61107e5 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] 4: 0x5650947f61ac - core::fmt::write::ha20e7262fa3e8a7a [INFO] [stderr] at src/libcore/fmt/mod.rs:1076 [INFO] [stderr] 5: 0x5650947d60f2 - std::io::Write::write_fmt::h1aebfe8a5a79e36d [INFO] [stderr] at src/libstd/io/mod.rs:1537 [INFO] [stderr] 6: 0x5650947d9e90 - std::sys_common::backtrace::_print::h9c07314cc66ba539 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stderr] 7: 0x5650947d9e90 - std::sys_common::backtrace::print::hd1fd65f49a2d8544 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stderr] 8: 0x5650947d9e90 - std::panicking::default_hook::{{closure}}::h222da46485ab36fc [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 9: 0x5650947d9bdc - std::panicking::default_hook::hc5868949d129ed00 [INFO] [stderr] at src/libstd/panicking.rs:217 [INFO] [stderr] 10: 0x5650947da4d3 - std::panicking::rust_panic_with_hook::h26a6ab8b0993c0c8 [INFO] [stderr] at src/libstd/panicking.rs:526 [INFO] [stderr] 11: 0x5650947da0cb - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:437 [INFO] [stderr] 12: 0x5650947f55b1 - core::panicking::panic_fmt::h17139c2000299725 [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 13: 0x5650947f53d3 - core::option::expect_none_failed::h972f96abb4ec8952 [INFO] [stderr] at src/libcore/option.rs:1269 [INFO] [stderr] 14: 0x5650945f009b - core::result::Result::unwrap::h5d0ba86971499905 [INFO] [stderr] at /rustc/6f959902b3103c49ca981fbc01871589c3498489/src/libcore/result.rs:1005 [INFO] [stderr] 15: 0x5650945f4913 - build_script_build::write_lib::h9277717792acbac7 [INFO] [stderr] at /opt/rustwide/workdir/build.rs:61 [INFO] [stderr] 16: 0x5650945f54d1 - build_script_build::main::h71d68bc2f802f7df [INFO] [stderr] at /opt/rustwide/workdir/build.rs:93 [INFO] [stderr] 17: 0x5650945ed62b - std::rt::lang_start::{{closure}}::h01e3049084b6b04f [INFO] [stderr] at /rustc/6f959902b3103c49ca981fbc01871589c3498489/src/libstd/rt.rs:67 [INFO] [stderr] 18: 0x5650947da8a3 - std::rt::lang_start_internal::{{closure}}::h84a998219831fa70 [INFO] [stderr] at src/libstd/rt.rs:52 [INFO] [stderr] 19: 0x5650947da8a3 - std::panicking::try::do_call::he8e1d689a3e26def [INFO] [stderr] at src/libstd/panicking.rs:348 [INFO] [stderr] 20: 0x5650947da8a3 - std::panicking::try::h264b6eebc2fa7bbf [INFO] [stderr] at src/libstd/panicking.rs:325 [INFO] [stderr] 21: 0x5650947da8a3 - std::panic::catch_unwind::hbf28fafa723b2128 [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 22: 0x5650947da8a3 - std::rt::lang_start_internal::he959aa59bc3ec202 [INFO] [stderr] at src/libstd/rt.rs:51 [INFO] [stderr] 23: 0x5650945ed607 - std::rt::lang_start::h15d0a98714dee849 [INFO] [stderr] at /rustc/6f959902b3103c49ca981fbc01871589c3498489/src/libstd/rt.rs:67 [INFO] [stderr] 24: 0x5650945f556a - main [INFO] [stderr] 25: 0x7f97f2a680b3 - __libc_start_main [INFO] [stderr] 26: 0x5650945e518e - _start [INFO] [stderr] 27: 0x0 - [INFO] running `Command { std: "docker" "inspect" "b174b5715c832679d69253ee20bf303212afdf27adfba654b529cf5626eb3698", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b174b5715c832679d69253ee20bf303212afdf27adfba654b529cf5626eb3698", kill_on_drop: false }` [INFO] [stdout] b174b5715c832679d69253ee20bf303212afdf27adfba654b529cf5626eb3698