[INFO] fetching crate mhost 0.3.0-alpha.1... [INFO] checking mhost-0.3.0-alpha.1 against master#9503ea19edbf01b9435e80e17d60ce1b88390116 for pr-81782 [INFO] extracting crate mhost 0.3.0-alpha.1 into /workspace/builds/worker-2/source [INFO] validating manifest of crates.io crate mhost 0.3.0-alpha.1 on toolchain 9503ea19edbf01b9435e80e17d60ce1b88390116 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate mhost 0.3.0-alpha.1 [INFO] finished tweaking crates.io crate mhost 0.3.0-alpha.1 [INFO] tweaked toml for crates.io crate mhost 0.3.0-alpha.1 written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate crates.io crate mhost 0.3.0-alpha.1 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 21dcfc7c540915009cffa481fc6768f482a1f2fea89d8b78749f9cc58c3eea50 [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" "21dcfc7c540915009cffa481fc6768f482a1f2fea89d8b78749f9cc58c3eea50", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "21dcfc7c540915009cffa481fc6768f482a1f2fea89d8b78749f9cc58c3eea50", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "21dcfc7c540915009cffa481fc6768f482a1f2fea89d8b78749f9cc58c3eea50", kill_on_drop: false }` [INFO] [stdout] 21dcfc7c540915009cffa481fc6768f482a1f2fea89d8b78749f9cc58c3eea50 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 99ab239e55ca1fbd998faf9103db0794a88e36abd6a6a782227badc4046ab8d0 [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" "99ab239e55ca1fbd998faf9103db0794a88e36abd6a6a782227badc4046ab8d0", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.82 [INFO] [stderr] Compiling syn v1.0.58 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling log v0.4.13 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling cc v1.0.66 [INFO] [stderr] Compiling serde_derive v1.0.120 [INFO] [stderr] Compiling proc-macro-nested v0.1.7 [INFO] [stderr] Compiling serde v1.0.120 [INFO] [stderr] Compiling getrandom v0.2.1 [INFO] [stderr] Checking pin-utils v0.1.0 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Checking fnv v1.0.7 [INFO] [stderr] Checking hashbrown v0.9.1 [INFO] [stderr] Compiling version_check v0.9.2 [INFO] [stderr] Checking regex-syntax v0.6.22 [INFO] [stderr] Checking data-encoding v2.3.1 [INFO] [stderr] Compiling httparse v1.3.4 [INFO] [stderr] Compiling serde_json v1.0.61 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Compiling ansi_term v0.11.0 [INFO] [stderr] Checking linked-hash-map v0.5.4 [INFO] [stderr] Compiling vec_map v0.8.2 [INFO] [stderr] Compiling encoding_rs v0.8.26 [INFO] [stderr] Compiling strsim v0.8.0 [INFO] [stderr] Checking tower-service v0.3.0 [INFO] [stderr] Checking quick-error v1.2.3 [INFO] [stderr] Checking arrayvec v0.5.2 [INFO] [stderr] Checking gimli v0.23.0 [INFO] [stderr] Compiling anyhow v1.0.38 [INFO] [stderr] Checking adler v0.2.3 [INFO] [stderr] Checking mime v0.3.16 [INFO] [stderr] Checking rustc-demangle v0.1.18 [INFO] [stderr] Checking object v0.22.0 [INFO] [stderr] Checking yansi v0.5.0 [INFO] [stderr] Checking humantime v2.1.0 [INFO] [stderr] Checking lru_time_cache v0.11.4 [INFO] [stderr] Compiling tokio v1.0.2 [INFO] [stderr] Compiling indexmap v1.6.1 [INFO] [stderr] Compiling miniz_oxide v0.4.3 [INFO] [stderr] Checking futures-channel v0.3.12 [INFO] [stderr] Checking tinyvec v1.1.0 [INFO] [stderr] Checking form_urlencoded v1.0.0 [INFO] [stderr] Checking tracing-core v0.1.17 [INFO] [stderr] Checking thread_local v1.1.0 [INFO] [stderr] Checking sharded-slab v0.1.1 [INFO] [stderr] Checking http v0.2.3 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking tabwriter v1.2.1 [INFO] [stderr] Checking lru-cache v0.1.2 [INFO] [stderr] Compiling nom v5.1.2 [INFO] [stderr] Compiling error-chain v0.12.4 [INFO] [stderr] Checking lexical-core v0.7.4 [INFO] [stderr] Checking num-complex v0.1.43 [INFO] [stderr] Checking unicode-normalization v0.1.16 [INFO] [stderr] Checking want v0.3.0 [INFO] [stderr] Checking tracing-log v0.1.1 [INFO] [stderr] Checking aho-corasick v0.7.15 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Checking parking_lot_core v0.8.2 [INFO] [stderr] Checking signal-hook-registry v1.3.0 [INFO] [stderr] Checking mio v0.7.7 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking hostname v0.3.1 [INFO] [stderr] Checking socket2 v0.3.19 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking time v0.1.43 [INFO] [stderr] Checking dirs-sys v0.3.5 [INFO] [stderr] Compiling clap v2.33.3 [INFO] [stderr] Checking parking_lot v0.11.1 [INFO] [stderr] Checking rand_core v0.6.1 [INFO] [stderr] Checking resolv-conf v0.7.0 [INFO] [stderr] Checking dirs v2.0.2 [INFO] [stderr] Compiling ring v0.16.19 [INFO] [stderr] Checking idna v0.2.0 [INFO] [stderr] Checking term v0.6.1 [INFO] [stderr] Checking rand_chacha v0.3.0 [INFO] [stderr] Checking regex-automata v0.1.9 [INFO] [stderr] Checking regex v1.4.3 [INFO] [stderr] Checking http-body v0.4.0 [INFO] [stderr] Checking num-bigint v0.1.44 [INFO] [stderr] Checking rand v0.8.2 [INFO] [stderr] Checking url v2.2.0 [INFO] [stderr] Checking addr2line v0.14.1 [INFO] [stderr] Checking num-rational v0.1.42 [INFO] [stderr] Checking backtrace v0.3.55 [INFO] [stderr] Checking matchers v0.0.1 [INFO] [stderr] Checking tempfile v3.2.0 [INFO] [stderr] Checking num v0.1.42 [INFO] [stderr] Checking spectral v0.6.0 [INFO] [stderr] Checking lit v1.0.2 [INFO] [stderr] Checking webpki v0.21.4 [INFO] [stderr] Checking sct v0.6.0 [INFO] [stderr] Compiling mhost v0.3.0-alpha.1 (/opt/rustwide/workdir) [INFO] [stderr] Checking rustls v0.19.0 [INFO] [stderr] Checking webpki-roots v0.21.0 [INFO] [stderr] error: failed to run custom build command for `mhost v0.3.0-alpha.1 (/opt/rustwide/workdir)` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/target/debug/build/mhost-a6920607f5a9d9a0/build-script-build` (exit code: 101) [INFO] [stderr] --- stderr [INFO] [stderr] thread 'main' panicked at 'failed to create output directory: Os { code: 30, kind: Other, message: "Read-only file system" }', build.rs:20:37 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x55c904390620 - std::backtrace_rs::backtrace::libunwind::trace::hb4de9797f80b7b8c [INFO] [stderr] at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5 [INFO] [stderr] 1: 0x55c904390620 - std::backtrace_rs::backtrace::trace_unsynchronized::h59566d0bd20efff7 [INFO] [stderr] at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x55c904390620 - std::sys_common::backtrace::_print_fmt::hcfa5ce6be50275d4 [INFO] [stderr] at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stderr] 3: 0x55c904390620 - ::fmt::hd8c307a38b9bab04 [INFO] [stderr] at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stderr] 4: 0x55c9043a7bfc - core::fmt::write::h3868db8542c90941 [INFO] [stderr] at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/core/src/fmt/mod.rs:1096:17 [INFO] [stderr] 5: 0x55c90438e032 - std::io::Write::write_fmt::hab90295d5a0f197d [INFO] [stderr] at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/io/mod.rs:1568:15 [INFO] [stderr] 6: 0x55c9043923c5 - std::sys_common::backtrace::_print::h19224910b8700cf1 [INFO] [stderr] at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stderr] 7: 0x55c9043923c5 - std::sys_common::backtrace::print::h25dedfa68c5fb84a [INFO] [stderr] at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stderr] 8: 0x55c9043923c5 - std::panicking::default_hook::{{closure}}::h12c5765653a72a42 [INFO] [stderr] at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/panicking.rs:208:50 [INFO] [stderr] 9: 0x55c904391e73 - std::panicking::default_hook::he65cee71c4209f0c [INFO] [stderr] at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/panicking.rs:225:9 [INFO] [stderr] 10: 0x55c904392b61 - std::panicking::rust_panic_with_hook::h01a674d863fe0d8a [INFO] [stderr] at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/panicking.rs:591:17 [INFO] [stderr] 11: 0x55c9043926a7 - std::panicking::begin_panic_handler::{{closure}}::h9b9fecf185178864 [INFO] [stderr] at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/panicking.rs:497:13 [INFO] [stderr] 12: 0x55c904390abc - std::sys_common::backtrace::__rust_end_short_backtrace::h57be46a42dc7f24b [INFO] [stderr] at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/sys_common/backtrace.rs:141:18 [INFO] [stderr] 13: 0x55c904392609 - rust_begin_unwind [INFO] [stderr] at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/panicking.rs:493:5 [INFO] [stderr] 14: 0x55c9043a6fd1 - core::panicking::panic_fmt::h20225113c4a2f8fd [INFO] [stderr] at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/core/src/panicking.rs:92:14 [INFO] [stderr] 15: 0x55c9043a6df3 - core::option::expect_none_failed::hc6d6d4cea4fdc285 [INFO] [stderr] at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/core/src/option.rs:1300:5 [INFO] [stderr] 16: 0x55c90434a094 - core::result::Result::expect::hb487ada3201c38ed [INFO] [stderr] at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/core/src/result.rs:997:23 [INFO] [stderr] 17: 0x55c904308dae - build_script_build::main::h656e53f1a28a606d [INFO] [stderr] at /opt/rustwide/workdir/build.rs:20:5 [INFO] [stderr] 18: 0x55c90430856b - core::ops::function::FnOnce::call_once::h3325bfd0908bb6b3 [INFO] [stderr] at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/core/src/ops/function.rs:227:5 [INFO] [stderr] 19: 0x55c90430a30e - std::sys_common::backtrace::__rust_begin_short_backtrace::h620c2bb688c015e9 [INFO] [stderr] at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/sys_common/backtrace.rs:125:18 [INFO] [stderr] 20: 0x55c904308221 - std::rt::lang_start::{{closure}}::hde9841ba30fdb803 [INFO] [stderr] at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/rt.rs:66:18 [INFO] [stderr] 21: 0x55c904392f87 - core::ops::function::impls:: for &F>::call_once::h2c4fd7d4128112a8 [INFO] [stderr] at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/core/src/ops/function.rs:259:13 [INFO] [stderr] 22: 0x55c904392f87 - std::panicking::try::do_call::h41fb7dbbbe7bece6 [INFO] [stderr] at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/panicking.rs:379:40 [INFO] [stderr] 23: 0x55c904392f87 - std::panicking::try::hd38008ccba72bce1 [INFO] [stderr] at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/panicking.rs:343:19 [INFO] [stderr] 24: 0x55c904392f87 - std::panic::catch_unwind::h057e765cd60f2d13 [INFO] [stderr] at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/panic.rs:431:14 [INFO] [stderr] 25: 0x55c904392f87 - std::rt::lang_start_internal::hdb9d0b9d2cdcda8b [INFO] [stderr] at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/rt.rs:51:25 [INFO] [stderr] 26: 0x55c9043081f7 - std::rt::lang_start::h13a8a1e088e75a0a [INFO] [stderr] at /rustc/9503ea19edbf01b9435e80e17d60ce1b88390116/library/std/src/rt.rs:65:5 [INFO] [stderr] 27: 0x55c904308f3a - main [INFO] [stderr] 28: 0x7f282e06e0b3 - __libc_start_main [INFO] [stderr] 29: 0x55c9043020be - _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" "99ab239e55ca1fbd998faf9103db0794a88e36abd6a6a782227badc4046ab8d0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "99ab239e55ca1fbd998faf9103db0794a88e36abd6a6a782227badc4046ab8d0", kill_on_drop: false }` [INFO] [stdout] 99ab239e55ca1fbd998faf9103db0794a88e36abd6a6a782227badc4046ab8d0