[INFO] fetching crate mongobook 0.1.14...
[INFO] testing mongobook-0.1.14 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-2
[INFO] extracting crate mongobook 0.1.14 into /workspace/builds/worker-5-tc1/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-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mongobook 0.1.14 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.118
[INFO] [stderr]   Downloaded tokio-macros v1.0.0
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 099e1c701d8365a8b8d52abe1326d6df6204e853fd9b94f13a93fcb317a077b6
[INFO] running `Command { std: "docker" "start" "-a" "099e1c701d8365a8b8d52abe1326d6df6204e853fd9b94f13a93fcb317a077b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "099e1c701d8365a8b8d52abe1326d6df6204e853fd9b94f13a93fcb317a077b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "099e1c701d8365a8b8d52abe1326d6df6204e853fd9b94f13a93fcb317a077b6", kill_on_drop: false }`
[INFO] [stdout] 099e1c701d8365a8b8d52abe1326d6df6204e853fd9b94f13a93fcb317a077b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec697e96ab0873c8171e5a3d6c278559c459a92943a755c8207c65b47e62166a
[INFO] running `Command { std: "docker" "start" "-a" "ec697e96ab0873c8171e5a3d6c278559c459a92943a755c8207c65b47e62166a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.82
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[INFO] [stderr]    Compiling darling_macro v0.10.2
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[INFO] [stderr]    Compiling futures v0.3.9
[INFO] [stderr]    Compiling trust-dns-proto v0.19.6
[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 1m 20s
[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" "ec697e96ab0873c8171e5a3d6c278559c459a92943a755c8207c65b47e62166a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec697e96ab0873c8171e5a3d6c278559c459a92943a755c8207c65b47e62166a", kill_on_drop: false }`
[INFO] [stdout] ec697e96ab0873c8171e5a3d6c278559c459a92943a755c8207c65b47e62166a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa5eb566167c9f5f49d22378fa2b4d8197695797cea0e5ecf61de26a7155bf2c
[INFO] running `Command { std: "docker" "start" "-a" "fa5eb566167c9f5f49d22378fa2b4d8197695797cea0e5ecf61de26a7155bf2c", kill_on_drop: false }`
[INFO] [stderr]    Compiling mongobook v0.1.14 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.54s
[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" "fa5eb566167c9f5f49d22378fa2b4d8197695797cea0e5ecf61de26a7155bf2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa5eb566167c9f5f49d22378fa2b4d8197695797cea0e5ecf61de26a7155bf2c", kill_on_drop: false }`
[INFO] [stdout] fa5eb566167c9f5f49d22378fa2b4d8197695797cea0e5ecf61de26a7155bf2c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f3dd01679cfbd811b46c40834411aaca51c498e5e333449d72585d2d8a2251bb
[INFO] running `Command { std: "docker" "start" "-a" "f3dd01679cfbd811b46c40834411aaca51c498e5e333449d72585d2d8a2251bb", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.26s
[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' (48) 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:     0x62b325751b0a - std[31e582c13f4e914f]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x62b325751b0a - std[31e582c13f4e914f]::backtrace_rs::backtrace::trace_unsynchronized::<std[31e582c13f4e914f]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x62b325751b0a - std[31e582c13f4e914f]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x62b325751b0a - <<std[31e582c13f4e914f]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[fa0eadad68403074]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x62b32576988a - <core[fa0eadad68403074]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x62b32576988a - core[fa0eadad68403074]::fmt::write
[INFO] [stdout]    6:     0x62b3257572a2 - std[31e582c13f4e914f]::io::default_write_fmt::<std[31e582c13f4e914f]::sys::stdio::unix::Stderr>
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x62b3257572a2 - <std[31e582c13f4e914f]::sys::stdio::unix::Stderr as std[31e582c13f4e914f]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x62b325733e1f - <std[31e582c13f4e914f]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x62b325733e1f - std[31e582c13f4e914f]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x62b32574be11 - std[31e582c13f4e914f]::panicking::default_hook
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panicking.rs:319:9
[INFO] [stdout]   11:     0x62b32574bfcb - std[31e582c13f4e914f]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panicking.rs:825:13
[INFO] [stdout]   12:     0x62b325733ed8 - std[31e582c13f4e914f]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panicking.rs:698:13
[INFO] [stdout]   13:     0x62b325728cd9 - std[31e582c13f4e914f]::sys::backtrace::__rust_end_short_backtrace::<std[31e582c13f4e914f]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   14:     0x62b325734a9d - __rustc[fc8e3a9f23f26cb]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panicking.rs:689:5
[INFO] [stdout]   15:     0x62b32576a07c - core[fa0eadad68403074]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/core/src/panicking.rs:80:14
[INFO] [stdout]   16:     0x62b325769dc2 - core[fa0eadad68403074]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/core/src/result.rs:1867:5
[INFO] [stdout]   17:     0x62b324edf441 - rust_out[6ca516bbe19c3985]::main::{closure#0}
[INFO] [stdout]   18:     0x62b324edaeb7 - <tokio[878b05c54d4e2ca9]::park::thread::CachedParkThread>::block_on::<rust_out[6ca516bbe19c3985]::main::{closure#0}>::{closure#0}
[INFO] [stdout]   19:     0x62b324edbd42 - tokio[878b05c54d4e2ca9]::coop::with_budget::<core[fa0eadad68403074]::task::poll::Poll<core[fa0eadad68403074]::result::Result<(), alloc[49b8922c36ca62de]::boxed::Box<dyn core[fa0eadad68403074]::error::Error>>>, <tokio[878b05c54d4e2ca9]::park::thread::CachedParkThread>::block_on<rust_out[6ca516bbe19c3985]::main::{closure#0}>::{closure#0}>::{closure#0}
[INFO] [stdout]   20:     0x62b324eb6634 - <std[31e582c13f4e914f]::thread::local::LocalKey<core[fa0eadad68403074]::cell::Cell<tokio[878b05c54d4e2ca9]::coop::Budget>>>::try_with::<tokio[878b05c54d4e2ca9]::coop::with_budget<core[fa0eadad68403074]::task::poll::Poll<core[fa0eadad68403074]::result::Result<(), alloc[49b8922c36ca62de]::boxed::Box<dyn core[fa0eadad68403074]::error::Error>>>, <tokio[878b05c54d4e2ca9]::park::thread::CachedParkThread>::block_on<rust_out[6ca516bbe19c3985]::main::{closure#0}>::{closure#0}>::{closure#0}, core[fa0eadad68403074]::task::poll::Poll<core[fa0eadad68403074]::result::Result<(), alloc[49b8922c36ca62de]::boxed::Box<dyn core[fa0eadad68403074]::error::Error>>>>
[INFO] [stdout]   21:     0x62b324eb6377 - <std[31e582c13f4e914f]::thread::local::LocalKey<core[fa0eadad68403074]::cell::Cell<tokio[878b05c54d4e2ca9]::coop::Budget>>>::with::<tokio[878b05c54d4e2ca9]::coop::with_budget<core[fa0eadad68403074]::task::poll::Poll<core[fa0eadad68403074]::result::Result<(), alloc[49b8922c36ca62de]::boxed::Box<dyn core[fa0eadad68403074]::error::Error>>>, <tokio[878b05c54d4e2ca9]::park::thread::CachedParkThread>::block_on<rust_out[6ca516bbe19c3985]::main::{closure#0}>::{closure#0}>::{closure#0}, core[fa0eadad68403074]::task::poll::Poll<core[fa0eadad68403074]::result::Result<(), alloc[49b8922c36ca62de]::boxed::Box<dyn core[fa0eadad68403074]::error::Error>>>>
[INFO] [stdout]   22:     0x62b324eb6f5a - <tokio[878b05c54d4e2ca9]::park::thread::CachedParkThread>::block_on::<rust_out[6ca516bbe19c3985]::main::{closure#0}>
[INFO] [stdout]   23:     0x62b324eb7fd8 - <tokio[878b05c54d4e2ca9]::runtime::enter::Enter>::block_on::<rust_out[6ca516bbe19c3985]::main::{closure#0}>
[INFO] [stdout]   24:     0x62b324eb59dc - <tokio[878b05c54d4e2ca9]::runtime::thread_pool::ThreadPool>::block_on::<rust_out[6ca516bbe19c3985]::main::{closure#0}>
[INFO] [stdout]   25:     0x62b324eb44dc - <tokio[878b05c54d4e2ca9]::runtime::Runtime>::block_on::<rust_out[6ca516bbe19c3985]::main::{closure#0}>
[INFO] [stdout]   26:     0x62b324ee29b2 - rust_out[6ca516bbe19c3985]::main
[INFO] [stdout]   27:     0x62b324ee8c83 - <fn() -> core[fa0eadad68403074]::result::Result<(), alloc[49b8922c36ca62de]::boxed::Box<dyn core[fa0eadad68403074]::error::Error>> as core[fa0eadad68403074]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   28:     0x62b324ebe3c6 - std[31e582c13f4e914f]::sys::backtrace::__rust_begin_short_backtrace::<fn() -> core[fa0eadad68403074]::result::Result<(), alloc[49b8922c36ca62de]::boxed::Box<dyn core[fa0eadad68403074]::error::Error>>, core[fa0eadad68403074]::result::Result<(), alloc[49b8922c36ca62de]::boxed::Box<dyn core[fa0eadad68403074]::error::Error>>>
[INFO] [stdout]   29:     0x62b324edbb49 - std[31e582c13f4e914f]::rt::lang_start::<core[fa0eadad68403074]::result::Result<(), alloc[49b8922c36ca62de]::boxed::Box<dyn core[fa0eadad68403074]::error::Error>>>::{closure#0}
[INFO] [stdout]   30:     0x62b32574af74 - <&dyn core[fa0eadad68403074]::ops::function::Fn<(), Output = i32> + core[fa0eadad68403074]::marker::Sync + core[fa0eadad68403074]::panic::unwind_safe::RefUnwindSafe as core[fa0eadad68403074]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/core/src/ops/function.rs:287:21
[INFO] [stdout]   31:     0x62b32574af74 - std[31e582c13f4e914f]::panicking::catch_unwind::do_call::<&dyn core[fa0eadad68403074]::ops::function::Fn<(), Output = i32> + core[fa0eadad68403074]::marker::Sync + core[fa0eadad68403074]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panicking.rs:581:40
[INFO] [stdout]   32:     0x62b32574af74 - std[31e582c13f4e914f]::panicking::catch_unwind::<i32, &dyn core[fa0eadad68403074]::ops::function::Fn<(), Output = i32> + core[fa0eadad68403074]::marker::Sync + core[fa0eadad68403074]::panic::unwind_safe::RefUnwindSafe>
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panicking.rs:544:19
[INFO] [stdout]   33:     0x62b32574af74 - std[31e582c13f4e914f]::panic::catch_unwind::<&dyn core[fa0eadad68403074]::ops::function::Fn<(), Output = i32> + core[fa0eadad68403074]::marker::Sync + core[fa0eadad68403074]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panic.rs:359:14
[INFO] [stdout]   34:     0x62b32574af74 - std[31e582c13f4e914f]::rt::lang_start_internal::{closure#0}
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/rt.rs:175:24
[INFO] [stdout]   35:     0x62b32574af74 - std[31e582c13f4e914f]::panicking::catch_unwind::do_call::<std[31e582c13f4e914f]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panicking.rs:581:40
[INFO] [stdout]   36:     0x62b32574af74 - std[31e582c13f4e914f]::panicking::catch_unwind::<isize, std[31e582c13f4e914f]::rt::lang_start_internal::{closure#0}>
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panicking.rs:544:19
[INFO] [stdout]   37:     0x62b32574af74 - std[31e582c13f4e914f]::panic::catch_unwind::<std[31e582c13f4e914f]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panic.rs:359:14
[INFO] [stdout]   38:     0x62b32574af74 - std[31e582c13f4e914f]::rt::lang_start_internal
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/rt.rs:171:5
[INFO] [stdout]   39:     0x62b324eb90d1 - std[31e582c13f4e914f]::rt::lang_start::<core[fa0eadad68403074]::result::Result<(), alloc[49b8922c36ca62de]::boxed::Box<dyn core[fa0eadad68403074]::error::Error>>>
[INFO] [stdout]   40:     0x62b324ee9175 - main
[INFO] [stdout]   41:     0x73acc7a0b1ca - <unknown>
[INFO] [stdout]   42:     0x73acc7a0b28b - __libc_start_main
[INFO] [stdout]   43:     0x62b324eb4225 - _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 1.94s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "f3dd01679cfbd811b46c40834411aaca51c498e5e333449d72585d2d8a2251bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3dd01679cfbd811b46c40834411aaca51c498e5e333449d72585d2d8a2251bb", kill_on_drop: false }`
[INFO] [stdout] f3dd01679cfbd811b46c40834411aaca51c498e5e333449d72585d2d8a2251bb