[INFO] fetching crate mongobook 0.1.14...
[INFO] testing mongobook-0.1.14 against try#db823df02fd0c2cf67b43025ac3fef3f2d743245 for pr-150681
[INFO] extracting crate mongobook 0.1.14 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate mongobook 0.1.14
[INFO] finished tweaking crates.io crate mongobook 0.1.14
[INFO] tweaked toml for crates.io crate mongobook 0.1.14 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mongobook 0.1.14 on toolchain db823df02fd0c2cf67b43025ac3fef3f2d743245
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mongobook 0.1.14 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" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cb3e8da49b026b1897a30688cb3698d7a266634bd1ff6f1c3f82cb57bb8c27d1
[INFO] running `Command { std: "docker" "start" "-a" "cb3e8da49b026b1897a30688cb3698d7a266634bd1ff6f1c3f82cb57bb8c27d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb3e8da49b026b1897a30688cb3698d7a266634bd1ff6f1c3f82cb57bb8c27d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb3e8da49b026b1897a30688cb3698d7a266634bd1ff6f1c3f82cb57bb8c27d1", kill_on_drop: false }`
[INFO] [stdout] cb3e8da49b026b1897a30688cb3698d7a266634bd1ff6f1c3f82cb57bb8c27d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe8927765a906dd1e9cfe261c0f51a7713c3d30c6c5e7abfa3c3073325cb406a
[INFO] running `Command { std: "docker" "start" "-a" "fe8927765a906dd1e9cfe261c0f51a7713c3d30c6c5e7abfa3c3073325cb406a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.82
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[INFO] [stderr]    Compiling trust-dns-resolver v0.19.6
[INFO] [stderr]    Compiling serde_with v1.6.0
[INFO] [stderr]    Compiling bson v1.1.0
[INFO] [stderr]    Compiling pgnparse v0.1.8
[INFO] [stderr]    Compiling mongodb v1.1.1
[INFO] [stderr]    Compiling mongobook v0.1.14 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 17s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: bson v1.1.0, mongodb v1.1.1
[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" "fe8927765a906dd1e9cfe261c0f51a7713c3d30c6c5e7abfa3c3073325cb406a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe8927765a906dd1e9cfe261c0f51a7713c3d30c6c5e7abfa3c3073325cb406a", kill_on_drop: false }`
[INFO] [stdout] fe8927765a906dd1e9cfe261c0f51a7713c3d30c6c5e7abfa3c3073325cb406a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b5df248934d11ce5a3ef8309c1ca46a63a73c5737dd9f6031455065ff4417ce
[INFO] running `Command { std: "docker" "start" "-a" "4b5df248934d11ce5a3ef8309c1ca46a63a73c5737dd9f6031455065ff4417ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling mongobook v0.1.14 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.24s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: bson v1.1.0, mongodb v1.1.1
[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" "4b5df248934d11ce5a3ef8309c1ca46a63a73c5737dd9f6031455065ff4417ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b5df248934d11ce5a3ef8309c1ca46a63a73c5737dd9f6031455065ff4417ce", kill_on_drop: false }`
[INFO] [stdout] 4b5df248934d11ce5a3ef8309c1ca46a63a73c5737dd9f6031455065ff4417ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ca76155a1505b38ac4683e1d1e131f91a032b152cccd799e0e54d20c0f697a60
[INFO] running `Command { std: "docker" "start" "-a" "ca76155a1505b38ac4683e1d1e131f91a032b152cccd799e0e54d20c0f697a60", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: bson v1.1.0, mongodb v1.1.1
[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/mongobook-afabd19e8cd4abcc)
[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]      Running unittests src/example.rs (/opt/rustwide/target/debug/deps/example-47d8eb77eca669e0)
[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 mongobook
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 5) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 5) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stdout:
[INFO] [stdout] mongobook, under construction
[INFO] [stdout] MongoBook
[INFO] [stdout] -> uri = mongodb://localhost:27017
[INFO] [stdout] -> book depth = 10
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] 
[INFO] [stdout] thread 'main' (40) panicked at src/lib.rs:22:51:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 2, kind: NotFound, message: "No such file or directory" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5674f7e799f2 - std[3f03f8b59f91bef1]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5674f7e799f2 - std[3f03f8b59f91bef1]::backtrace_rs::backtrace::trace_unsynchronized::<std[3f03f8b59f91bef1]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5674f7e799f2 - std[3f03f8b59f91bef1]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5674f7e799f2 - <<std[3f03f8b59f91bef1]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[585f66e14d78f9ba]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5674f7e9213a - <core[585f66e14d78f9ba]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5674f7e9213a - core[585f66e14d78f9ba]::fmt::write
[INFO] [stdout]    6:     0x5674f7e7f7d6 - std[3f03f8b59f91bef1]::io::default_write_fmt::<std[3f03f8b59f91bef1]::sys::stdio::unix::Stderr>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5674f7e7f7d6 - <std[3f03f8b59f91bef1]::sys::stdio::unix::Stderr as std[3f03f8b59f91bef1]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x5674f7e5b2cf - <std[3f03f8b59f91bef1]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5674f7e5b2cf - std[3f03f8b59f91bef1]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5674f7e73a91 - std[3f03f8b59f91bef1]::panicking::default_hook
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:319:9
[INFO] [stdout]   11:     0x5674f7e73c4b - std[3f03f8b59f91bef1]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:825:13
[INFO] [stdout]   12:     0x5674f7e5b388 - std[3f03f8b59f91bef1]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:698:13
[INFO] [stdout]   13:     0x5674f7e501b9 - std[3f03f8b59f91bef1]::sys::backtrace::__rust_end_short_backtrace::<std[3f03f8b59f91bef1]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   14:     0x5674f7e5bf9d - __rustc[caa99d26c7bae192]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:689:5
[INFO] [stdout]   15:     0x5674f7e928ac - core[585f66e14d78f9ba]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/panicking.rs:80:14
[INFO] [stdout]   16:     0x5674f7e925f2 - core[585f66e14d78f9ba]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/result.rs:1867:5
[INFO] [stdout]   17:     0x5674f75fee51 - rust_out[183646e59c86b0c5]::main::{closure#0}
[INFO] [stdout]   18:     0x5674f75fa8c7 - <tokio[49d8d7b2764dd4f8]::park::thread::CachedParkThread>::block_on::<rust_out[183646e59c86b0c5]::main::{closure#0}>::{closure#0}
[INFO] [stdout]   19:     0x5674f75fb742 - tokio[49d8d7b2764dd4f8]::coop::with_budget::<core[585f66e14d78f9ba]::task::poll::Poll<core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::boxed::Box<dyn core[585f66e14d78f9ba]::error::Error>>>, <tokio[49d8d7b2764dd4f8]::park::thread::CachedParkThread>::block_on<rust_out[183646e59c86b0c5]::main::{closure#0}>::{closure#0}>::{closure#0}
[INFO] [stdout]   20:     0x5674f75d6074 - <std[3f03f8b59f91bef1]::thread::local::LocalKey<core[585f66e14d78f9ba]::cell::Cell<tokio[49d8d7b2764dd4f8]::coop::Budget>>>::try_with::<tokio[49d8d7b2764dd4f8]::coop::with_budget<core[585f66e14d78f9ba]::task::poll::Poll<core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::boxed::Box<dyn core[585f66e14d78f9ba]::error::Error>>>, <tokio[49d8d7b2764dd4f8]::park::thread::CachedParkThread>::block_on<rust_out[183646e59c86b0c5]::main::{closure#0}>::{closure#0}>::{closure#0}, core[585f66e14d78f9ba]::task::poll::Poll<core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::boxed::Box<dyn core[585f66e14d78f9ba]::error::Error>>>>
[INFO] [stdout]   21:     0x5674f75d5db7 - <std[3f03f8b59f91bef1]::thread::local::LocalKey<core[585f66e14d78f9ba]::cell::Cell<tokio[49d8d7b2764dd4f8]::coop::Budget>>>::with::<tokio[49d8d7b2764dd4f8]::coop::with_budget<core[585f66e14d78f9ba]::task::poll::Poll<core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::boxed::Box<dyn core[585f66e14d78f9ba]::error::Error>>>, <tokio[49d8d7b2764dd4f8]::park::thread::CachedParkThread>::block_on<rust_out[183646e59c86b0c5]::main::{closure#0}>::{closure#0}>::{closure#0}, core[585f66e14d78f9ba]::task::poll::Poll<core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::boxed::Box<dyn core[585f66e14d78f9ba]::error::Error>>>>
[INFO] [stdout]   22:     0x5674f75d699a - <tokio[49d8d7b2764dd4f8]::park::thread::CachedParkThread>::block_on::<rust_out[183646e59c86b0c5]::main::{closure#0}>
[INFO] [stdout]   23:     0x5674f75d7a48 - <tokio[49d8d7b2764dd4f8]::runtime::enter::Enter>::block_on::<rust_out[183646e59c86b0c5]::main::{closure#0}>
[INFO] [stdout]   24:     0x5674f75d541c - <tokio[49d8d7b2764dd4f8]::runtime::thread_pool::ThreadPool>::block_on::<rust_out[183646e59c86b0c5]::main::{closure#0}>
[INFO] [stdout]   25:     0x5674f75d3ecc - <tokio[49d8d7b2764dd4f8]::runtime::Runtime>::block_on::<rust_out[183646e59c86b0c5]::main::{closure#0}>
[INFO] [stdout]   26:     0x5674f76023c2 - rust_out[183646e59c86b0c5]::main
[INFO] [stdout]   27:     0x5674f76087c3 - <fn() -> core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::boxed::Box<dyn core[585f66e14d78f9ba]::error::Error>> as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   28:     0x5674f75de866 - std[3f03f8b59f91bef1]::sys::backtrace::__rust_begin_short_backtrace::<fn() -> core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::boxed::Box<dyn core[585f66e14d78f9ba]::error::Error>>, core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::boxed::Box<dyn core[585f66e14d78f9ba]::error::Error>>>
[INFO] [stdout]   29:     0x5674f75fb549 - std[3f03f8b59f91bef1]::rt::lang_start::<core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::boxed::Box<dyn core[585f66e14d78f9ba]::error::Error>>>::{closure#0}
[INFO] [stdout]   30:     0x5674f7e72c46 - <&dyn core[585f66e14d78f9ba]::ops::function::Fn<(), Output = i32> + core[585f66e14d78f9ba]::marker::Sync + core[585f66e14d78f9ba]::panic::unwind_safe::RefUnwindSafe as core[585f66e14d78f9ba]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/ops/function.rs:287:21
[INFO] [stdout]   31:     0x5674f7e72c46 - std[3f03f8b59f91bef1]::panicking::catch_unwind::do_call::<&dyn core[585f66e14d78f9ba]::ops::function::Fn<(), Output = i32> + core[585f66e14d78f9ba]::marker::Sync + core[585f66e14d78f9ba]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:581:40
[INFO] [stdout]   32:     0x5674f7e72c46 - std[3f03f8b59f91bef1]::panicking::catch_unwind::<i32, &dyn core[585f66e14d78f9ba]::ops::function::Fn<(), Output = i32> + core[585f66e14d78f9ba]::marker::Sync + core[585f66e14d78f9ba]::panic::unwind_safe::RefUnwindSafe>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:544:19
[INFO] [stdout]   33:     0x5674f7e72c46 - std[3f03f8b59f91bef1]::panic::catch_unwind::<&dyn core[585f66e14d78f9ba]::ops::function::Fn<(), Output = i32> + core[585f66e14d78f9ba]::marker::Sync + core[585f66e14d78f9ba]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panic.rs:359:14
[INFO] [stdout]   34:     0x5674f7e72c46 - std[3f03f8b59f91bef1]::rt::lang_start_internal::{closure#0}
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/rt.rs:175:24
[INFO] [stdout]   35:     0x5674f7e72c46 - std[3f03f8b59f91bef1]::panicking::catch_unwind::do_call::<std[3f03f8b59f91bef1]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:581:40
[INFO] [stdout]   36:     0x5674f7e72c46 - std[3f03f8b59f91bef1]::panicking::catch_unwind::<isize, std[3f03f8b59f91bef1]::rt::lang_start_internal::{closure#0}>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panicking.rs:544:19
[INFO] [stdout]   37:     0x5674f7e72c46 - std[3f03f8b59f91bef1]::panic::catch_unwind::<std[3f03f8b59f91bef1]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/panic.rs:359:14
[INFO] [stdout]   38:     0x5674f7e72c46 - std[3f03f8b59f91bef1]::rt::lang_start_internal
[INFO] [stdout]                                at /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/std/src/rt.rs:171:5
[INFO] [stdout]   39:     0x5674f75d8b41 - std[3f03f8b59f91bef1]::rt::lang_start::<core[585f66e14d78f9ba]::result::Result<(), alloc[15e7b27aba85d2e2]::boxed::Box<dyn core[585f66e14d78f9ba]::error::Error>>>
[INFO] [stdout]   40:     0x5674f7608cb5 - main
[INFO] [stdout]   41:     0x77ad8d97c1ca - <unknown>
[INFO] [stdout]   42:     0x77ad8d97c28b - __libc_start_main
[INFO] [stdout]   43:     0x5674f75d3ba5 - _start
[INFO] [stdout]   44:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 5)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.19s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "ca76155a1505b38ac4683e1d1e131f91a032b152cccd799e0e54d20c0f697a60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca76155a1505b38ac4683e1d1e131f91a032b152cccd799e0e54d20c0f697a60", kill_on_drop: false }`
[INFO] [stdout] ca76155a1505b38ac4683e1d1e131f91a032b152cccd799e0e54d20c0f697a60
