[INFO] fetching crate readings-probe 0.1.4... [INFO] testing readings-probe-0.1.4 against beta-2022-04-10 for beta-1.61-1 [INFO] extracting crate readings-probe 0.1.4 into /workspace/builds/worker-82/source [INFO] validating manifest of crates.io crate readings-probe 0.1.4 on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate readings-probe 0.1.4 [INFO] finished tweaking crates.io crate readings-probe 0.1.4 [INFO] tweaked toml for crates.io crate readings-probe 0.1.4 written to /workspace/builds/worker-82/source/Cargo.toml [INFO] crate crates.io crate readings-probe 0.1.4 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-82/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-82/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1f5f2676b46b82e7fb4db1b4475d8746ac23c687d5dce449f3a7c23639271ae4 [INFO] running `Command { std: "docker" "start" "-a" "1f5f2676b46b82e7fb4db1b4475d8746ac23c687d5dce449f3a7c23639271ae4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1f5f2676b46b82e7fb4db1b4475d8746ac23c687d5dce449f3a7c23639271ae4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1f5f2676b46b82e7fb4db1b4475d8746ac23c687d5dce449f3a7c23639271ae4", kill_on_drop: false }` [INFO] [stdout] 1f5f2676b46b82e7fb4db1b4475d8746ac23c687d5dce449f3a7c23639271ae4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-82/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-82/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 55f325aadc8215b66a423299107a36c90393263eebd5db5d10e9456a35030c90 [INFO] running `Command { std: "docker" "start" "-a" "55f325aadc8215b66a423299107a36c90393263eebd5db5d10e9456a35030c90", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.32 [INFO] [stderr] Compiling syn v1.0.82 [INFO] [stderr] Compiling libc v0.2.108 [INFO] [stderr] Compiling quote v1.0.10 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling thiserror-impl v1.0.30 [INFO] [stderr] Compiling thiserror v1.0.30 [INFO] [stderr] Compiling readings-probe v0.1.4 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 5.82s [INFO] running `Command { std: "docker" "inspect" "55f325aadc8215b66a423299107a36c90393263eebd5db5d10e9456a35030c90", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "55f325aadc8215b66a423299107a36c90393263eebd5db5d10e9456a35030c90", kill_on_drop: false }` [INFO] [stdout] 55f325aadc8215b66a423299107a36c90393263eebd5db5d10e9456a35030c90 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-82/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-82/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 38f0a7dd05c8104f033fe7664c537ae1f66a4b1aed68c3dc19f3379a9fecc195 [INFO] running `Command { std: "docker" "start" "-a" "38f0a7dd05c8104f033fe7664c537ae1f66a4b1aed68c3dc19f3379a9fecc195", kill_on_drop: false }` [INFO] [stderr] Compiling cc v1.0.72 [INFO] [stderr] Compiling fs_extra v1.2.0 [INFO] [stderr] Compiling jemalloc-sys v0.3.2 [INFO] [stderr] Compiling jemallocator v0.3.2 [INFO] [stderr] Compiling readings-probe v0.1.4 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 33.13s [INFO] [stderr] Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/readings_probe-b4bb5f6cd1614564) [INFO] running `Command { std: "docker" "inspect" "38f0a7dd05c8104f033fe7664c537ae1f66a4b1aed68c3dc19f3379a9fecc195", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "38f0a7dd05c8104f033fe7664c537ae1f66a4b1aed68c3dc19f3379a9fecc195", kill_on_drop: false }` [INFO] [stdout] 38f0a7dd05c8104f033fe7664c537ae1f66a4b1aed68c3dc19f3379a9fecc195 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-82/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-82/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 34a7233084e1141f63845a85de0ad9b0ab543c4972c86451091ed8f57155a231 [INFO] running `Command { std: "docker" "start" "-a" "34a7233084e1141f63845a85de0ad9b0ab543c4972c86451091ed8f57155a231", kill_on_drop: false }` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/readings_probe-b4bb5f6cd1614564) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stderr] Doc-tests readings-probe [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [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: ReadOnlyFilesystem, message: "Read-only file system" }', src/lib.rs:10:74 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x560ad384d6cd - std::backtrace_rs::backtrace::libunwind::trace::ha359b7f0090e2792 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5 [INFO] [stdout] 1: 0x560ad384d6cd - std::backtrace_rs::backtrace::trace_unsynchronized::h0584631f25c1d70e [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x560ad384d6cd - std::sys_common::backtrace::_print_fmt::hdadffd97d279ff14 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/sys_common/backtrace.rs:66:5 [INFO] [stdout] 3: 0x560ad384d6cd - ::fmt::h26f189e611080a74 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/sys_common/backtrace.rs:45:22 [INFO] [stdout] 4: 0x560ad386bf9c - core::fmt::write::hfb5d11dfe037e8b7 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/core/src/fmt/mod.rs:1194:17 [INFO] [stdout] 5: 0x560ad384b5d1 - std::io::Write::write_fmt::ha30651f608022a46 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/io/mod.rs:1655:15 [INFO] [stdout] 6: 0x560ad384ef95 - std::sys_common::backtrace::_print::h7a0e44402913ba60 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/sys_common/backtrace.rs:48:5 [INFO] [stdout] 7: 0x560ad384ef95 - std::sys_common::backtrace::print::h9767dc455a84e728 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/sys_common/backtrace.rs:35:9 [INFO] [stdout] 8: 0x560ad384ef95 - std::panicking::default_hook::{{closure}}::h60afd6c8b12988ad [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:295:22 [INFO] [stdout] 9: 0x560ad384ec49 - std::panicking::default_hook::ha7b9bac6813f9d21 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:314:9 [INFO] [stdout] 10: 0x560ad384f4e2 - std::panicking::rust_panic_with_hook::h7b117a162a6f8664 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:698:17 [INFO] [stdout] 11: 0x560ad384f3c7 - std::panicking::begin_panic_handler::{{closure}}::h346750923c608600 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:588:13 [INFO] [stdout] 12: 0x560ad384db84 - std::sys_common::backtrace::__rust_end_short_backtrace::h768c56c6a0c055c0 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/sys_common/backtrace.rs:138:18 [INFO] [stdout] 13: 0x560ad384f0f9 - rust_begin_unwind [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:584:5 [INFO] [stdout] 14: 0x560ad38143a3 - core::panicking::panic_fmt::h5c41cb2fa118fdbc [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/core/src/panicking.rs:143:14 [INFO] [stdout] 15: 0x560ad3814493 - core::result::unwrap_failed::h6bc7b183ec719494 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/core/src/result.rs:1785:5 [INFO] [stdout] 16: 0x560ad3816f69 - core::result::Result::unwrap::h9a86c25ec438aad1 [INFO] [stdout] 17: 0x560ad38185d4 - rust_out::main::haac69d197efa9bf1 [INFO] [stdout] 18: 0x560ad38162a6 - core::ops::function::FnOnce::call_once::hebfd478d8b8a750a [INFO] [stdout] 19: 0x560ad38150b9 - std::sys_common::backtrace::__rust_begin_short_backtrace::h6e16a2e109fa17ff [INFO] [stdout] 20: 0x560ad3815adc - std::rt::lang_start::{{closure}}::h5e3011a92b7f7a31 [INFO] [stdout] 21: 0x560ad384803e - core::ops::function::impls:: for &F>::call_once::hae31cd38f966dcbc [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/core/src/ops/function.rs:259:13 [INFO] [stdout] 22: 0x560ad384803e - std::panicking::try::do_call::h4a4c12a32b804624 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:492:40 [INFO] [stdout] 23: 0x560ad384803e - std::panicking::try::h87f80f5db1929b60 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:456:19 [INFO] [stdout] 24: 0x560ad384803e - std::panic::catch_unwind::hbc53afd5a2bdc195 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panic.rs:137:14 [INFO] [stdout] 25: 0x560ad384803e - std::rt::lang_start_internal::{{closure}}::h2e62ddd08385fac8 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/rt.rs:128:48 [INFO] [stdout] 26: 0x560ad384803e - std::panicking::try::do_call::h04b85b79b362213e [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:492:40 [INFO] [stdout] 27: 0x560ad384803e - std::panicking::try::h428fba6a4941d8ed [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panicking.rs:456:19 [INFO] [stdout] 28: 0x560ad384803e - std::panic::catch_unwind::hd73c90258412492e [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/panic.rs:137:14 [INFO] [stdout] 29: 0x560ad384803e - std::rt::lang_start_internal::h26255896a96668b5 [INFO] [stdout] at /rustc/7c13df853721b60a03e7c0bb084d2eb1e27a9caa/library/std/src/rt.rs:128:20 [INFO] [stdout] 30: 0x560ad3815ac1 - std::rt::lang_start::h1426aed7c2c6b72a [INFO] [stdout] 31: 0x560ad3818d33 - main [INFO] [stdout] 32: 0x7f29bb4270b3 - __libc_start_main [INFO] [stdout] 33: 0x560ad381464e - _start [INFO] [stdout] 34: 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; finished in 0.28s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--doc' [INFO] running `Command { std: "docker" "inspect" "34a7233084e1141f63845a85de0ad9b0ab543c4972c86451091ed8f57155a231", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "34a7233084e1141f63845a85de0ad9b0ab543c4972c86451091ed8f57155a231", kill_on_drop: false }` [INFO] [stdout] 34a7233084e1141f63845a85de0ad9b0ab543c4972c86451091ed8f57155a231