[INFO] crate readings-probe 0.1.2 is already in cache [INFO] testing readings-probe-0.1.2 against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274 [INFO] extracting crate readings-probe 0.1.2 into /workspace/builds/worker-0/source [INFO] validating manifest of crates.io crate readings-probe 0.1.2 on toolchain 28742a1146f10a4f09369baad027a464acb7a766 [INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking crates.io crate readings-probe 0.1.2 [INFO] finished tweaking crates.io crate readings-probe 0.1.2 [INFO] tweaked toml for crates.io crate readings-probe 0.1.2 written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate crates.io crate readings-probe 0.1.2 already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=forbid" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 78c90405985da67ac24ab00d17b005ab7a0dfc736ecd3278375976201ccc66bb [INFO] running `"docker" "start" "-a" "78c90405985da67ac24ab00d17b005ab7a0dfc736ecd3278375976201ccc66bb"` [INFO] [stderr] Compiling proc-macro2 v1.0.10 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling syn v1.0.17 [INFO] [stderr] Compiling libc v0.2.68 [INFO] [stderr] Compiling quote v1.0.3 [INFO] [stderr] Compiling num_cpus v1.12.0 [INFO] [stderr] Compiling thiserror-impl v1.0.14 [INFO] [stderr] Compiling thiserror v1.0.14 [INFO] [stderr] Compiling readings-probe v0.1.2 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 20.32s [INFO] running `"docker" "inspect" "78c90405985da67ac24ab00d17b005ab7a0dfc736ecd3278375976201ccc66bb"` [INFO] running `"docker" "rm" "-f" "78c90405985da67ac24ab00d17b005ab7a0dfc736ecd3278375976201ccc66bb"` [INFO] [stdout] 78c90405985da67ac24ab00d17b005ab7a0dfc736ecd3278375976201ccc66bb [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=forbid" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen" "--no-run"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 4b5c240f492fab12268fdf4678b7d744825baba900ba2177cb0442734115676d [INFO] running `"docker" "start" "-a" "4b5c240f492fab12268fdf4678b7d744825baba900ba2177cb0442734115676d"` [INFO] [stderr] Compiling readings-probe v0.1.2 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.62s [INFO] running `"docker" "inspect" "4b5c240f492fab12268fdf4678b7d744825baba900ba2177cb0442734115676d"` [INFO] running `"docker" "rm" "-f" "4b5c240f492fab12268fdf4678b7d744825baba900ba2177cb0442734115676d"` [INFO] [stdout] 4b5c240f492fab12268fdf4678b7d744825baba900ba2177cb0442734115676d [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=forbid" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 3e0c553ec468b154b367f7c8063664b8e7e8b2d6ee991a672ccc453b7d2c977c [INFO] running `"docker" "start" "-a" "3e0c553ec468b154b367f7c8063664b8e7e8b2d6ee991a672ccc453b7d2c977c"` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.18s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/readings_probe-4167d8178ae18e86 [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Doc-tests readings-probe [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test src/lib.rs - (line 13) ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - (line 13) stdout ---- [INFO] [stdout] Test executable failed (exit code 101). [INFO] [stdout] [INFO] [stdout] stderr: [INFO] [stdout] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', src/lib.rs:10:36 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x5593d8a62684 - backtrace::backtrace::libunwind::trace::hbb4ce8c04526962e [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86 [INFO] [stdout] 1: 0x5593d8a62684 - backtrace::backtrace::trace_unsynchronized::h79251c088e7be038 [INFO] [stdout] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66 [INFO] [stdout] 2: 0x5593d8a62684 - std::sys_common::backtrace::_print_fmt::h6b0ea30a9223acae [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stdout] 3: 0x5593d8a62684 - ::fmt::h4d51ef07ce58e54b [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stdout] 4: 0x5593d8a85e0c - core::fmt::write::he16b9c1345d8565e [INFO] [stdout] at src/libcore/fmt/mod.rs:1069 [INFO] [stdout] 5: 0x5593d8a60b93 - std::io::Write::write_fmt::h35d873b9ce1f02a8 [INFO] [stdout] at src/libstd/io/mod.rs:1504 [INFO] [stdout] 6: 0x5593d8a64cb5 - std::sys_common::backtrace::_print::h9288fa7d9f6629cb [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stdout] 7: 0x5593d8a64cb5 - std::sys_common::backtrace::print::h82e606e62781d8af [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stdout] 8: 0x5593d8a64cb5 - std::panicking::default_hook::{{closure}}::h1fe350ecbf7604e4 [INFO] [stdout] at src/libstd/panicking.rs:198 [INFO] [stdout] 9: 0x5593d8a649f2 - std::panicking::default_hook::h1b8b42953fdc841d [INFO] [stdout] at src/libstd/panicking.rs:218 [INFO] [stdout] 10: 0x5593d8a65312 - std::panicking::rust_panic_with_hook::he73826f4bb75a21e [INFO] [stdout] at src/libstd/panicking.rs:511 [INFO] [stdout] 11: 0x5593d8a64efb - rust_begin_unwind [INFO] [stdout] at src/libstd/panicking.rs:419 [INFO] [stdout] 12: 0x5593d8a83eb1 - core::panicking::panic_fmt::hc8f9a0b2af5fb585 [INFO] [stdout] at src/libcore/panicking.rs:111 [INFO] [stdout] 13: 0x5593d8a83cd3 - core::option::expect_none_failed::ha34d57526cca3063 [INFO] [stdout] at src/libcore/option.rs:1268 [INFO] [stdout] 14: 0x5593d8a43bfb - core::result::Result::unwrap::hb3e55f8f3a9dfc02 [INFO] [stdout] 15: 0x5593d8a46645 - rust_out::main::hb7e432503dde6e56 [INFO] [stdout] 16: 0x5593d8a41958 - std::rt::lang_start::{{closure}}::he175f6faac85488e [INFO] [stdout] 17: 0x5593d8a65758 - std::rt::lang_start_internal::{{closure}}::h985f9ad0467016f1 [INFO] [stdout] at src/libstd/rt.rs:52 [INFO] [stdout] 18: 0x5593d8a65758 - std::panicking::try::do_call::hbcbbc645883681bb [INFO] [stdout] at src/libstd/panicking.rs:331 [INFO] [stdout] 19: 0x5593d8a65758 - std::panicking::try::h250f86dc8ee6d054 [INFO] [stdout] at src/libstd/panicking.rs:274 [INFO] [stdout] 20: 0x5593d8a65758 - std::panic::catch_unwind::h58d26ced09bde6c3 [INFO] [stdout] at src/libstd/panic.rs:394 [INFO] [stdout] 21: 0x5593d8a65758 - std::rt::lang_start_internal::h7de51dd9f16af454 [INFO] [stdout] at src/libstd/rt.rs:51 [INFO] [stdout] 22: 0x5593d8a41928 - std::rt::lang_start::h459cd58e131f338c [INFO] [stdout] 23: 0x5593d8a46c8b - main [INFO] [stdout] 24: 0x7f665cf54b97 - __libc_start_main [INFO] [stdout] 25: 0x5593d8a4052a - _start [INFO] [stdout] 26: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] src/lib.rs - (line 13) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--doc' [INFO] running `"docker" "inspect" "3e0c553ec468b154b367f7c8063664b8e7e8b2d6ee991a672ccc453b7d2c977c"` [INFO] running `"docker" "rm" "-f" "3e0c553ec468b154b367f7c8063664b8e7e8b2d6ee991a672ccc453b7d2c977c"` [INFO] [stdout] 3e0c553ec468b154b367f7c8063664b8e7e8b2d6ee991a672ccc453b7d2c977c