[INFO] fetching crate tab 0.5.4... [INFO] testing tab-0.5.4 against beta-2021-01-01 for beta-1.50-1 [INFO] extracting crate tab 0.5.4 into /workspace/builds/worker-9/source [INFO] validating manifest of crates.io crate tab 0.5.4 on toolchain beta-2021-01-01 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate tab 0.5.4 [INFO] finished tweaking crates.io crate tab 0.5.4 [INFO] tweaked toml for crates.io crate tab 0.5.4 written to /workspace/builds/worker-9/source/Cargo.toml [INFO] crate crates.io crate tab 0.5.4 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded tab-daemon v0.5.4 [INFO] [stderr] Downloaded tab-pty v0.5.3 [INFO] [stderr] Downloaded insta v0.16.1 [INFO] [stderr] Downloaded tab-command v0.5.4 [INFO] [stderr] Downloaded which v4.0.2 [INFO] [stderr] Downloaded toml_edit v0.2.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c95b6dc7bd5eb9be49ebbb9fe8bb98531d54979e3568dc79b512a0ae5729f170 [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" "c95b6dc7bd5eb9be49ebbb9fe8bb98531d54979e3568dc79b512a0ae5729f170", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c95b6dc7bd5eb9be49ebbb9fe8bb98531d54979e3568dc79b512a0ae5729f170", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c95b6dc7bd5eb9be49ebbb9fe8bb98531d54979e3568dc79b512a0ae5729f170", kill_on_drop: false }` [INFO] [stdout] c95b6dc7bd5eb9be49ebbb9fe8bb98531d54979e3568dc79b512a0ae5729f170 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 94a4fe8d620ec342db462aa9b509181710a7c8e9758da9a2695f5139cda5fdb6 [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" "94a4fe8d620ec342db462aa9b509181710a7c8e9758da9a2695f5139cda5fdb6", kill_on_drop: false }` [INFO] [stderr] Compiling futures-core v0.3.8 [INFO] [stderr] Compiling futures-sink v0.3.8 [INFO] [stderr] Compiling futures-io v0.3.8 [INFO] [stderr] Compiling either v1.6.1 [INFO] [stderr] Compiling owned-alloc v0.2.0 [INFO] [stderr] Compiling arc-swap v0.4.8 [INFO] [stderr] Compiling sysinfo v0.15.4 [INFO] [stderr] Compiling utf-8 v0.7.5 [INFO] [stderr] Compiling unicode_categories v0.1.1 [INFO] [stderr] Compiling void v1.0.2 [INFO] [stderr] Compiling ascii v0.9.3 [INFO] [stderr] Compiling futures-task v0.3.8 [INFO] [stderr] Compiling input_buffer v0.3.1 [INFO] [stderr] Compiling fuzzy-matcher v0.3.7 [INFO] [stderr] Compiling anyhow v1.0.37 [INFO] [stderr] Compiling doc-comment v0.3.3 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling signal-hook-registry v1.3.0 [INFO] [stderr] Compiling dirs-sys v0.3.5 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling parking_lot_core v0.7.2 [INFO] [stderr] Compiling terminal_size v0.1.15 [INFO] [stderr] Compiling termios v0.3.3 [INFO] [stderr] Compiling semver-parser v0.10.1 [INFO] [stderr] Compiling mio v0.7.7 [INFO] [stderr] Compiling log-panics v2.0.0 [INFO] [stderr] Compiling unreachable v1.0.0 [INFO] [stderr] Compiling bytes v0.4.12 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling futures-channel v0.3.8 [INFO] [stderr] Compiling lockfree v0.5.1 [INFO] [stderr] Compiling url v2.2.0 [INFO] [stderr] Compiling clap v2.33.3 [INFO] [stderr] Compiling dirs v3.0.1 [INFO] [stderr] Compiling combine v3.8.1 [INFO] [stderr] Compiling pin-project-internal v1.0.2 [INFO] [stderr] Compiling futures-macro v0.3.8 [INFO] [stderr] Compiling tokio-macros v0.2.6 [INFO] [stderr] Compiling pin-project-internal v0.4.27 [INFO] [stderr] Compiling serde_derive v1.0.118 [INFO] [stderr] Compiling async-trait v0.1.42 [INFO] [stderr] Compiling typed-builder v0.7.1 [INFO] [stderr] Compiling chrono v0.4.19 [INFO] [stderr] Compiling parking_lot v0.10.2 [INFO] [stderr] Compiling console v0.11.3 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling signal-hook v0.1.17 [INFO] [stderr] Compiling thiserror v1.0.23 [INFO] [stderr] Compiling mio-uds v0.6.8 [INFO] [stderr] Compiling tokio-io v0.1.13 [INFO] [stderr] Compiling semver v0.11.0 [INFO] [stderr] Compiling rayon-core v1.9.0 [INFO] [stderr] Compiling snailquote v0.3.0 [INFO] [stderr] Compiling which v4.0.2 [INFO] [stderr] Compiling tungstenite v0.11.1 [INFO] [stderr] Compiling tempfile v3.1.0 [INFO] [stderr] Compiling simplelog v0.8.0 [INFO] [stderr] Compiling tokio v0.2.24 [INFO] [stderr] Compiling dialoguer v0.6.2 [INFO] [stderr] Compiling rayon v1.5.0 [INFO] [stderr] Compiling pin-project v1.0.2 [INFO] [stderr] Compiling futures-util v0.3.8 [INFO] [stderr] Compiling tab v0.5.4 (/opt/rustwide/workdir) [INFO] [stderr] error: failed to run custom build command for `tab v0.5.4 (/opt/rustwide/workdir)` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/build/tab-d65a9c3e662f7dee/build-script-build` (exit code: 101) [INFO] [stderr] --- stderr [INFO] [stderr] thread 'main' panicked at 'failed to create ./target/completions: Os { code: 30, kind: Other, message: "Read-only file system" }', build.rs:13:45 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x56245da824d7 - std::backtrace_rs::backtrace::libunwind::trace::hcd6e187547b8deec [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5 [INFO] [stderr] 1: 0x56245da824d7 - std::backtrace_rs::backtrace::trace_unsynchronized::hde10036eb783fbc7 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x56245da824d7 - std::sys_common::backtrace::_print_fmt::h63987b8f86dfc82a [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stderr] 3: 0x56245da824d7 - ::fmt::hc33f3ac4cc9c4196 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stderr] 4: 0x56245da9978c - core::fmt::write::hfdcdeb08fb2b3afa [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/core/src/fmt/mod.rs:1078:17 [INFO] [stderr] 5: 0x56245da80112 - std::io::Write::write_fmt::h83a843778fa2a815 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/io/mod.rs:1519:15 [INFO] [stderr] 6: 0x56245da84215 - std::sys_common::backtrace::_print::hf179508b01f66878 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stderr] 7: 0x56245da84215 - std::sys_common::backtrace::print::ha97d11adb39266a6 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stderr] 8: 0x56245da84215 - std::panicking::default_hook::{{closure}}::h8da9985a98bd1582 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:208:50 [INFO] [stderr] 9: 0x56245da83d6a - std::panicking::default_hook::hbc0ee792993c2ef2 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:225:9 [INFO] [stderr] 10: 0x56245da849b1 - std::panicking::rust_panic_with_hook::h9fb9cda33a10f084 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:591:17 [INFO] [stderr] 11: 0x56245da844f7 - std::panicking::begin_panic_handler::{{closure}}::hf3e83396e085962e [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:497:13 [INFO] [stderr] 12: 0x56245da8299c - std::sys_common::backtrace::__rust_end_short_backtrace::hac151ac4c1e3252d [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:141:18 [INFO] [stderr] 13: 0x56245da84459 - rust_begin_unwind [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:493:5 [INFO] [stderr] 14: 0x56245da98b61 - core::panicking::panic_fmt::hf6d8a92b065b8f97 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/core/src/panicking.rs:92:14 [INFO] [stderr] 15: 0x56245da98983 - core::option::expect_none_failed::ha72f299eca314ad7 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/core/src/option.rs:1268:5 [INFO] [stderr] 16: 0x56245da4f764 - core::result::Result::expect::h3778675b527071c3 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/core/src/result.rs:933:23 [INFO] [stderr] 17: 0x56245da00293 - build_script_build::main::h9bd550372a1c9401 [INFO] [stderr] at /opt/rustwide/workdir/build.rs:13:5 [INFO] [stderr] 18: 0x56245da0212b - core::ops::function::FnOnce::call_once::hcefd7695d33a4dea [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/core/src/ops/function.rs:227:5 [INFO] [stderr] 19: 0x56245da026ce - std::sys_common::backtrace::__rust_begin_short_backtrace::ha8fa0686d7391afc [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:125:18 [INFO] [stderr] 20: 0x56245da02351 - std::rt::lang_start::{{closure}}::h5c7e72a31d9b028e [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/rt.rs:66:18 [INFO] [stderr] 21: 0x56245da84dd7 - core::ops::function::impls:: for &F>::call_once::hb5ab992a536e3d7c [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/core/src/ops/function.rs:259:13 [INFO] [stderr] 22: 0x56245da84dd7 - std::panicking::try::do_call::h1bda883686bc1816 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:379:40 [INFO] [stderr] 23: 0x56245da84dd7 - std::panicking::try::ha7167c079f243e71 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:343:19 [INFO] [stderr] 24: 0x56245da84dd7 - std::panic::catch_unwind::he11c3de53f0b5853 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panic.rs:396:14 [INFO] [stderr] 25: 0x56245da84dd7 - std::rt::lang_start_internal::h45c3666b51d25060 [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/rt.rs:51:25 [INFO] [stderr] 26: 0x56245da02327 - std::rt::lang_start::h18bb66ee190ac47f [INFO] [stderr] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/rt.rs:65:5 [INFO] [stderr] 27: 0x56245da016fa - main [INFO] [stderr] 28: 0x7ff64832e0b3 - __libc_start_main [INFO] [stderr] 29: 0x56245da000be - _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" "94a4fe8d620ec342db462aa9b509181710a7c8e9758da9a2695f5139cda5fdb6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "94a4fe8d620ec342db462aa9b509181710a7c8e9758da9a2695f5139cda5fdb6", kill_on_drop: false }` [INFO] [stdout] 94a4fe8d620ec342db462aa9b509181710a7c8e9758da9a2695f5139cda5fdb6