[INFO] fetching crate readings-probe 0.1.4...
[INFO] testing readings-probe-0.1.4 against 1.69.0 for beta-1.70-1
[INFO] extracting crate readings-probe 0.1.4 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate readings-probe 0.1.4 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "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-6-tc1/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.108
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e6656e64f6480c41204940ea0f2c80cd18d846cd4c988de3a1100b3122bface3
[INFO] running `Command { std: "docker" "start" "-a" "e6656e64f6480c41204940ea0f2c80cd18d846cd4c988de3a1100b3122bface3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6656e64f6480c41204940ea0f2c80cd18d846cd4c988de3a1100b3122bface3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6656e64f6480c41204940ea0f2c80cd18d846cd4c988de3a1100b3122bface3", kill_on_drop: false }`
[INFO] [stdout] e6656e64f6480c41204940ea0f2c80cd18d846cd4c988de3a1100b3122bface3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6110ed33064d5a4302fd4e21706f76cabecdab5f9bc8b221deb6a12eb821a721
[INFO] running `Command { std: "docker" "start" "-a" "6110ed33064d5a4302fd4e21706f76cabecdab5f9bc8b221deb6a12eb821a721", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[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 5.71s
[INFO] running `Command { std: "docker" "inspect" "6110ed33064d5a4302fd4e21706f76cabecdab5f9bc8b221deb6a12eb821a721", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6110ed33064d5a4302fd4e21706f76cabecdab5f9bc8b221deb6a12eb821a721", kill_on_drop: false }`
[INFO] [stdout] 6110ed33064d5a4302fd4e21706f76cabecdab5f9bc8b221deb6a12eb821a721
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8f6f27144ced86f19041fcffd64f4393aa60a6a0c50386cc49212d98be39f22
[INFO] running `Command { std: "docker" "start" "-a" "b8f6f27144ced86f19041fcffd64f4393aa60a6a0c50386cc49212d98be39f22", 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 48.50s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: fs_extra v1.2.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "b8f6f27144ced86f19041fcffd64f4393aa60a6a0c50386cc49212d98be39f22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8f6f27144ced86f19041fcffd64f4393aa60a6a0c50386cc49212d98be39f22", kill_on_drop: false }`
[INFO] [stdout] b8f6f27144ced86f19041fcffd64f4393aa60a6a0c50386cc49212d98be39f22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b03dedb0b75df0920f186ec9afcaba9f1a11d10250c7db03cd888cfa6eb16a44
[INFO] running `Command { std: "docker" "start" "-a" "b03dedb0b75df0920f186ec9afcaba9f1a11d10250c7db03cd888cfa6eb16a44", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: fs_extra v1.2.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/readings_probe-af1e70267dc1a717)
[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; finished in 0.00s
[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 status: 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:     0x55959a72faea - std::backtrace_rs::backtrace::libunwind::trace::ha9053a9a07ca49cb
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stdout]    1:     0x55959a72faea - std::backtrace_rs::backtrace::trace_unsynchronized::h9c2852a457ad564e
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x55959a72faea - std::sys_common::backtrace::_print_fmt::h457936fbfaa0070f
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:65:5
[INFO] [stdout]    3:     0x55959a72faea - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h5779d7bf7f70cb0c
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x55959a74e33e - core::fmt::write::h5a4baaff1bcd3eb5
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/fmt/mod.rs:1232:17
[INFO] [stdout]    5:     0x55959a72d845 - std::io::Write::write_fmt::h4bc1f301cb9e9cce
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/io/mod.rs:1684:15
[INFO] [stdout]    6:     0x55959a72f8b5 - std::sys_common::backtrace::_print::h5fcdc36060f177e8
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    7:     0x55959a72f8b5 - std::sys_common::backtrace::print::h54ca9458b876c8bf
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    8:     0x55959a730eef - std::panicking::default_hook::{{closure}}::hbe471161c7664ed6
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:271:22
[INFO] [stdout]    9:     0x55959a730c2b - std::panicking::default_hook::ha3500da57aa4ac4f
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:290:9
[INFO] [stdout]   10:     0x55959a731498 - std::panicking::rust_panic_with_hook::h50c09d000dc561d2
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:692:13
[INFO] [stdout]   11:     0x55959a731399 - std::panicking::begin_panic_handler::{{closure}}::h9e2b2176e00e0d9c
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:583:13
[INFO] [stdout]   12:     0x55959a72ff56 - std::sys_common::backtrace::__rust_end_short_backtrace::h5739b8e512c09d02
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:150:18
[INFO] [stdout]   13:     0x55959a7310a2 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:579:5
[INFO] [stdout]   14:     0x55959a6f8fa3 - core::panicking::panic_fmt::hf33a1475b4dc5c3e
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/panicking.rs:64:14
[INFO] [stdout]   15:     0x55959a6f93f3 - core::result::unwrap_failed::hdff5465d74574b44
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/result.rs:1750:5
[INFO] [stdout]   16:     0x55959a6fb764 - core::result::Result<T,E>::unwrap::h2ff2e1a8ac6ced3f
[INFO] [stdout]   17:     0x55959a6fc9fc - rust_out::main::h988628d4b2491f17
[INFO] [stdout]   18:     0x55959a6facd3 - core::ops::function::FnOnce::call_once::he2070760a5c021d5
[INFO] [stdout]   19:     0x55959a6f9e49 - std::sys_common::backtrace::__rust_begin_short_backtrace::h80d1dca6b810e227
[INFO] [stdout]   20:     0x55959a6fa7b9 - std::rt::lang_start::{{closure}}::h51a4332ff9ecf08a
[INFO] [stdout]   21:     0x55959a72a36c - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hd6efcd3bec896f2c
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/ops/function.rs:287:13
[INFO] [stdout]   22:     0x55959a72a36c - std::panicking::try::do_call::hce04e543bb1f4cbb
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:487:40
[INFO] [stdout]   23:     0x55959a72a36c - std::panicking::try::h3342dd4e1f680968
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:451:19
[INFO] [stdout]   24:     0x55959a72a36c - std::panic::catch_unwind::h148ce1e59ac0cee7
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panic.rs:140:14
[INFO] [stdout]   25:     0x55959a72a36c - std::rt::lang_start_internal::{{closure}}::h25f9dda2057a67fe
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/rt.rs:148:48
[INFO] [stdout]   26:     0x55959a72a36c - std::panicking::try::do_call::h7caaaeaf9401650b
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:487:40
[INFO] [stdout]   27:     0x55959a72a36c - std::panicking::try::he7d15285746cbbc2
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:451:19
[INFO] [stdout]   28:     0x55959a72a36c - std::panic::catch_unwind::h89fb4f50c0301fe0
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panic.rs:140:14
[INFO] [stdout]   29:     0x55959a72a36c - std::rt::lang_start_internal::h078acd489417d3c1
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/rt.rs:148:20
[INFO] [stdout]   30:     0x55959a6fa797 - std::rt::lang_start::hc9b7a566d42b7354
[INFO] [stdout]   31:     0x55959a6fd075 - main
[INFO] [stdout]   32:     0x7f030a9c1d90 - <unknown>
[INFO] [stdout]   33:     0x7f030a9c1e40 - __libc_start_main
[INFO] [stdout]   34:     0x55959a6f9585 - _start
[INFO] [stdout]   35:                0x0 - <unknown>
[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 0.41s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "b03dedb0b75df0920f186ec9afcaba9f1a11d10250c7db03cd888cfa6eb16a44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b03dedb0b75df0920f186ec9afcaba9f1a11d10250c7db03cd888cfa6eb16a44", kill_on_drop: false }`
[INFO] [stdout] b03dedb0b75df0920f186ec9afcaba9f1a11d10250c7db03cd888cfa6eb16a44
