[INFO] updating cached repository https://github.com/rrreeeyyy/mrusty-example [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }` [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 00ac89f1e7189016c99f61bb11281072b7615ee2 [INFO] testing rrreeeyyy/mrusty-example against beta-2020-07-24 for beta-1.46-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frrreeeyyy%2Fmrusty-example" "/workspace/builds/worker-12/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/rrreeeyyy/mrusty-example 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 git repo https://github.com/rrreeeyyy/mrusty-example [INFO] finished tweaking git repo https://github.com/rrreeeyyy/mrusty-example [INFO] tweaked toml for git repo https://github.com/rrreeeyyy/mrusty-example written to /workspace/builds/worker-12/source/Cargo.toml [INFO] crate git repo https://github.com/rrreeeyyy/mrusty-example 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] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] error: the lock file /workspace/builds/worker-12/source/Cargo.lock needs to be updated but --locked was passed to prevent this [INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag. [INFO] the lockfile is outdated, regenerating it [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 3bbc97da61a2b939f3578bf2ebb57384e219ced8ae7cb9dbd6441e6a8e7e9ea9 [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" "3bbc97da61a2b939f3578bf2ebb57384e219ced8ae7cb9dbd6441e6a8e7e9ea9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3bbc97da61a2b939f3578bf2ebb57384e219ced8ae7cb9dbd6441e6a8e7e9ea9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3bbc97da61a2b939f3578bf2ebb57384e219ced8ae7cb9dbd6441e6a8e7e9ea9", kill_on_drop: false }` [INFO] [stdout] 3bbc97da61a2b939f3578bf2ebb57384e219ced8ae7cb9dbd6441e6a8e7e9ea9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] cc99acb09a573a068a029cd237b3d9926c59a325bdf60bccb04f83a171df9a2d [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" "cc99acb09a573a068a029cd237b3d9926c59a325bdf60bccb04f83a171df9a2d", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling getopts v0.2.21 [INFO] [stderr] Compiling xattr v0.2.2 [INFO] [stderr] Compiling walkdir v0.1.8 [INFO] [stderr] Compiling tar v0.4.29 [INFO] [stderr] Compiling mrusty v1.0.0 [INFO] [stderr] error: failed to run custom build command for `mrusty v1.0.0` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/build/mrusty-b5cd8eb434c9874a/build-script-build` (exit code: 101) [INFO] [stderr] --- stderr [INFO] [stderr] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Custom { kind: Other, error: TarError { desc: "failed to create `target`", io: Os { code: 30, kind: Other, message: "Read-only file system" } } }', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mrusty-1.0.0/build.rs:26:30 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x55c5896f8015 - 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: 0x55c5896f8015 - 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: 0x55c5896f8015 - std::sys_common::backtrace::_print_fmt::h5e71b67af43fd70d [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stderr] 3: 0x55c5896f8015 - ::fmt::hdb4a83d2b61107e5 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] 4: 0x55c58971d71c - core::fmt::write::ha20e7262fa3e8a7a [INFO] [stderr] at src/libcore/fmt/mod.rs:1076 [INFO] [stderr] 5: 0x55c5896f3fe2 - std::io::Write::write_fmt::h1aebfe8a5a79e36d [INFO] [stderr] at src/libstd/io/mod.rs:1537 [INFO] [stderr] 6: 0x55c5896fa7a0 - std::sys_common::backtrace::_print::h9c07314cc66ba539 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stderr] 7: 0x55c5896fa7a0 - std::sys_common::backtrace::print::hd1fd65f49a2d8544 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stderr] 8: 0x55c5896fa7a0 - std::panicking::default_hook::{{closure}}::h222da46485ab36fc [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 9: 0x55c5896fa4ec - std::panicking::default_hook::hc5868949d129ed00 [INFO] [stderr] at src/libstd/panicking.rs:217 [INFO] [stderr] 10: 0x55c5896fade3 - std::panicking::rust_panic_with_hook::h26a6ab8b0993c0c8 [INFO] [stderr] at src/libstd/panicking.rs:526 [INFO] [stderr] 11: 0x55c5896fa9db - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:437 [INFO] [stderr] 12: 0x55c58971cb21 - core::panicking::panic_fmt::h17139c2000299725 [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 13: 0x55c58971c943 - core::option::expect_none_failed::h972f96abb4ec8952 [INFO] [stderr] at src/libcore/option.rs:1269 [INFO] [stderr] 14: 0x55c5896d5fb0 - core::result::Result::unwrap::hb6266aaa472a325e [INFO] [stderr] at /rustc/6f959902b3103c49ca981fbc01871589c3498489/src/libcore/result.rs:1005 [INFO] [stderr] 15: 0x55c58966fb51 - build_script_build::main::he635d272f440d6c6 [INFO] [stderr] at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mrusty-1.0.0/build.rs:26 [INFO] [stderr] 16: 0x55c5896704bb - std::rt::lang_start::{{closure}}::h3beb9dd0a20cda61 [INFO] [stderr] at /rustc/6f959902b3103c49ca981fbc01871589c3498489/src/libstd/rt.rs:67 [INFO] [stderr] 17: 0x55c5896fb1b3 - std::rt::lang_start_internal::{{closure}}::h84a998219831fa70 [INFO] [stderr] at src/libstd/rt.rs:52 [INFO] [stderr] 18: 0x55c5896fb1b3 - std::panicking::try::do_call::he8e1d689a3e26def [INFO] [stderr] at src/libstd/panicking.rs:348 [INFO] [stderr] 19: 0x55c5896fb1b3 - std::panicking::try::h264b6eebc2fa7bbf [INFO] [stderr] at src/libstd/panicking.rs:325 [INFO] [stderr] 20: 0x55c5896fb1b3 - std::panic::catch_unwind::hbf28fafa723b2128 [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 21: 0x55c5896fb1b3 - std::rt::lang_start_internal::he959aa59bc3ec202 [INFO] [stderr] at src/libstd/rt.rs:51 [INFO] [stderr] 22: 0x55c589670497 - std::rt::lang_start::hc37cb190940acc53 [INFO] [stderr] at /rustc/6f959902b3103c49ca981fbc01871589c3498489/src/libstd/rt.rs:67 [INFO] [stderr] 23: 0x55c5896700ca - main [INFO] [stderr] 24: 0x7fa4411030b3 - __libc_start_main [INFO] [stderr] 25: 0x55c58966f1ae - _start [INFO] [stderr] 26: 0x0 - [INFO] running `Command { std: "docker" "inspect" "cc99acb09a573a068a029cd237b3d9926c59a325bdf60bccb04f83a171df9a2d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cc99acb09a573a068a029cd237b3d9926c59a325bdf60bccb04f83a171df9a2d", kill_on_drop: false }` [INFO] [stdout] cc99acb09a573a068a029cd237b3d9926c59a325bdf60bccb04f83a171df9a2d