[INFO] cloning repository https://github.com/jlyonsmith/rppal-mfrc522
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jlyonsmith/rppal-mfrc522" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjlyonsmith%2Frppal-mfrc522", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjlyonsmith%2Frppal-mfrc522'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f2939ad096339e1fb9d71724f93fe0f715fc17c9
[INFO] testing jlyonsmith/rppal-mfrc522 against try#bd7d74411512a3dd3b35d2f699c51dd2557c7e7e+cargoflags=-Zbuild-dir-new-layout for pr-149852-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjlyonsmith%2Frppal-mfrc522" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-7-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/jlyonsmith/rppal-mfrc522
[INFO] finished tweaking git repo https://github.com/jlyonsmith/rppal-mfrc522
[INFO] tweaked toml for git repo https://github.com/jlyonsmith/rppal-mfrc522 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jlyonsmith/rppal-mfrc522 on toolchain bd7d74411512a3dd3b35d2f699c51dd2557c7e7e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jlyonsmith/rppal-mfrc522 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" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1b4b8ed05908fa28584a0db8d2d2106b1f39f701a2788abc13d44a417fd8fd5c
[INFO] running `Command { std: "docker" "start" "-a" "1b4b8ed05908fa28584a0db8d2d2106b1f39f701a2788abc13d44a417fd8fd5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b4b8ed05908fa28584a0db8d2d2106b1f39f701a2788abc13d44a417fd8fd5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b4b8ed05908fa28584a0db8d2d2106b1f39f701a2788abc13d44a417fd8fd5c", kill_on_drop: false }`
[INFO] [stdout] 1b4b8ed05908fa28584a0db8d2d2106b1f39f701a2788abc13d44a417fd8fd5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "build" "--frozen" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] eb15ad24fb2935ed640cb6414b6c9d52ac1969af325b2dc606eebf05756d63bf
[INFO] running `Command { std: "docker" "start" "-a" "eb15ad24fb2935ed640cb6414b6c9d52ac1969af325b2dc606eebf05756d63bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.0
[INFO] [stderr]    Compiling anstyle-query v1.0.0
[INFO] [stderr]    Compiling cfg_aliases v0.2.1
[INFO] [stderr]    Compiling clap_lex v0.7.0
[INFO] [stderr]    Compiling anyhow v1.0.86
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling bitflags v2.9.0
[INFO] [stderr]    Compiling numtoa v0.2.4
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling nix v0.30.1
[INFO] [stderr]    Compiling anstream v0.6.14
[INFO] [stderr]    Compiling clap_builder v4.5.2
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling termion v4.0.5
[INFO] [stderr]    Compiling rppal v0.22.1
[INFO] [stderr]    Compiling ctrlc v3.4.7
[INFO] [stderr]    Compiling clap_derive v4.5.4
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling clap v4.5.4
[INFO] [stderr]    Compiling simple_cancelation_token v0.0.1
[INFO] [stderr]    Compiling rppal_mfrc522 v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/mfrc522.rs:249:50
[INFO] [stdout]     |
[INFO] [stdout] 249 |         self.rmw(Register::TxControlReg, |value| (value | 0x03))?; // Turn on the antenna
[INFO] [stdout]     |                                                  ^            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 249 -         self.rmw(Register::TxControlReg, |value| (value | 0x03))?; // Turn on the antenna
[INFO] [stdout] 249 +         self.rmw(Register::TxControlReg, |value| value | 0x03 )?; // Turn on the antenna
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/mfrc522.rs:126:21
[INFO] [stdout]     |
[INFO] [stdout] 126 |     pub fn new(spi: &mut Spi) -> Mfrc522 {
[INFO] [stdout]     |                     ^^^^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 126 |     pub fn new(spi: &mut Spi) -> Mfrc522<'_> {
[INFO] [stdout]     |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.50s
[INFO] running `Command { std: "docker" "inspect" "eb15ad24fb2935ed640cb6414b6c9d52ac1969af325b2dc606eebf05756d63bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb15ad24fb2935ed640cb6414b6c9d52ac1969af325b2dc606eebf05756d63bf", kill_on_drop: false }`
[INFO] [stdout] eb15ad24fb2935ed640cb6414b6c9d52ac1969af325b2dc606eebf05756d63bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "--no-run" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] 1c02e8715854867743762fbdeb791d2c0d07e0647aef6573a04a7066f10c1007
[INFO] running `Command { std: "docker" "start" "-a" "1c02e8715854867743762fbdeb791d2c0d07e0647aef6573a04a7066f10c1007", kill_on_drop: false }`
[INFO] [stderr]    Compiling rppal_mfrc522 v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/mfrc522.rs:249:50
[INFO] [stdout]     |
[INFO] [stdout] 249 |         self.rmw(Register::TxControlReg, |value| (value | 0x03))?; // Turn on the antenna
[INFO] [stdout]     |                                                  ^            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 249 -         self.rmw(Register::TxControlReg, |value| (value | 0x03))?; // Turn on the antenna
[INFO] [stdout] 249 +         self.rmw(Register::TxControlReg, |value| value | 0x03 )?; // Turn on the antenna
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/mfrc522.rs:126:21
[INFO] [stdout]     |
[INFO] [stdout] 126 |     pub fn new(spi: &mut Spi) -> Mfrc522 {
[INFO] [stdout]     |                     ^^^^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 126 |     pub fn new(spi: &mut Spi) -> Mfrc522<'_> {
[INFO] [stdout]     |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/mfrc522.rs:249:50
[INFO] [stdout]     |
[INFO] [stdout] 249 |         self.rmw(Register::TxControlReg, |value| (value | 0x03))?; // Turn on the antenna
[INFO] [stdout]     |                                                  ^            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 249 -         self.rmw(Register::TxControlReg, |value| (value | 0x03))?; // Turn on the antenna
[INFO] [stdout] 249 +         self.rmw(Register::TxControlReg, |value| value | 0x03 )?; // Turn on the antenna
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/mfrc522.rs:126:21
[INFO] [stdout]     |
[INFO] [stdout] 126 |     pub fn new(spi: &mut Spi) -> Mfrc522 {
[INFO] [stdout]     |                     ^^^^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 126 |     pub fn new(spi: &mut Spi) -> Mfrc522<'_> {
[INFO] [stdout]     |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `Command { std: "docker" "inspect" "1c02e8715854867743762fbdeb791d2c0d07e0647aef6573a04a7066f10c1007", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c02e8715854867743762fbdeb791d2c0d07e0647aef6573a04a7066f10c1007", kill_on_drop: false }`
[INFO] [stdout] 1c02e8715854867743762fbdeb791d2c0d07e0647aef6573a04a7066f10c1007
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] 33db66df913eefb8e4afd2211b24cbe569fd5404594d8a7e5b39fe4488779557
[INFO] running `Command { std: "docker" "start" "-a" "33db66df913eefb8e4afd2211b24cbe569fd5404594d8a7e5b39fe4488779557", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]    --> src/mfrc522.rs:249:50
[INFO] [stderr]     |
[INFO] [stderr] 249 |         self.rmw(Register::TxControlReg, |value| (value | 0x03))?; // Turn on the antenna
[INFO] [stderr]     |                                                  ^            ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 249 -         self.rmw(Register::TxControlReg, |value| (value | 0x03))?; // Turn on the antenna
[INFO] [stderr] 249 +         self.rmw(Register::TxControlReg, |value| value | 0x03 )?; // Turn on the antenna
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/mfrc522.rs:126:21
[INFO] [stderr]     |
[INFO] [stderr] 126 |     pub fn new(spi: &mut Spi) -> Mfrc522 {
[INFO] [stderr]     |                     ^^^^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 126 |     pub fn new(spi: &mut Spi) -> Mfrc522<'_> {
[INFO] [stderr]     |                                         ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `rppal_mfrc522` (lib) generated 2 warnings (run `cargo fix --lib -p rppal_mfrc522` to apply 2 suggestions)
[INFO] [stderr] warning: `rppal_mfrc522` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/build/rppal_mfrc522/c934a70fb6261db4/deps/rppal_mfrc522-c934a70fb6261db4)
[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/bin/rppal_mfrc522.rs (/opt/rustwide/target/debug/build/rppal_mfrc522/e455a56354a2673a/deps/mfrc522-e455a56354a2673a)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::basic_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rppal_mfrc522
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]    --> src/mfrc522.rs:249:50
[INFO] [stderr]     |
[INFO] [stderr] 249 |         self.rmw(Register::TxControlReg, |value| (value | 0x03))?; // Turn on the antenna
[INFO] [stderr]     |                                                  ^            ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 249 -         self.rmw(Register::TxControlReg, |value| (value | 0x03))?; // Turn on the antenna
[INFO] [stderr] 249 +         self.rmw(Register::TxControlReg, |value| value | 0x03 )?; // Turn on the antenna
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 20) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 20) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] 
[INFO] [stdout] thread 'main' (58) panicked at src/lib.rs:11:33:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: UnknownModel
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x65031713fed2 - std[840933623431fd06]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x65031713fed2 - std[840933623431fd06]::backtrace_rs::backtrace::trace_unsynchronized::<std[840933623431fd06]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x65031713fed2 - std[840933623431fd06]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x65031713fed2 - <<std[840933623431fd06]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[8f93d80df273fe75]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x650317152c1a - <core[8f93d80df273fe75]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x650317152c1a - core[8f93d80df273fe75]::fmt::write
[INFO] [stdout]    6:     0x6503171445f6 - std[840933623431fd06]::io::default_write_fmt::<std[840933623431fd06]::sys::stdio::unix::Stderr>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x6503171445f6 - <std[840933623431fd06]::sys::stdio::unix::Stderr as std[840933623431fd06]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x650317129e8f - <std[840933623431fd06]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x650317129e8f - std[840933623431fd06]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x65031713b951 - std[840933623431fd06]::panicking::default_hook
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:319:9
[INFO] [stdout]   11:     0x65031713bb0b - std[840933623431fd06]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:825:13
[INFO] [stdout]   12:     0x650317129f48 - std[840933623431fd06]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:698:13
[INFO] [stdout]   13:     0x650317121ac9 - std[840933623431fd06]::sys::backtrace::__rust_end_short_backtrace::<std[840933623431fd06]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   14:     0x65031712a7ed - __rustc[5b4a0c6d8cc4a177]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:689:5
[INFO] [stdout]   15:     0x65031715331c - core[8f93d80df273fe75]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/panicking.rs:80:14
[INFO] [stdout]   16:     0x6503171530a2 - core[8f93d80df273fe75]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/result.rs:1867:5
[INFO] [stdout]   17:     0x6503170eece9 - rust_out[c8cdd22bfd421af4]::main::_doctest_main_src_lib_rs_20_0
[INFO] [stdout]   18:     0x6503170eeb56 - rust_out[c8cdd22bfd421af4]::main
[INFO] [stdout]   19:     0x6503170efad3 - <fn() as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   20:     0x6503170eeb16 - std[840933623431fd06]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stdout]   21:     0x6503170eeb29 - std[840933623431fd06]::rt::lang_start::<()>::{closure#0}
[INFO] [stdout]   22:     0x65031713af46 - <&dyn core[8f93d80df273fe75]::ops::function::Fn<(), Output = i32> + core[8f93d80df273fe75]::panic::unwind_safe::RefUnwindSafe + core[8f93d80df273fe75]::marker::Sync as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/ops/function.rs:287:21
[INFO] [stdout]   23:     0x65031713af46 - std[840933623431fd06]::panicking::catch_unwind::do_call::<&dyn core[8f93d80df273fe75]::ops::function::Fn<(), Output = i32> + core[8f93d80df273fe75]::panic::unwind_safe::RefUnwindSafe + core[8f93d80df273fe75]::marker::Sync, i32>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:581:40
[INFO] [stdout]   24:     0x65031713af46 - std[840933623431fd06]::panicking::catch_unwind::<i32, &dyn core[8f93d80df273fe75]::ops::function::Fn<(), Output = i32> + core[8f93d80df273fe75]::panic::unwind_safe::RefUnwindSafe + core[8f93d80df273fe75]::marker::Sync>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:544:19
[INFO] [stdout]   25:     0x65031713af46 - std[840933623431fd06]::panic::catch_unwind::<&dyn core[8f93d80df273fe75]::ops::function::Fn<(), Output = i32> + core[8f93d80df273fe75]::panic::unwind_safe::RefUnwindSafe + core[8f93d80df273fe75]::marker::Sync, i32>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panic.rs:359:14
[INFO] [stdout]   26:     0x65031713af46 - std[840933623431fd06]::rt::lang_start_internal::{closure#0}
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/rt.rs:175:24
[INFO] [stdout]   27:     0x65031713af46 - std[840933623431fd06]::panicking::catch_unwind::do_call::<std[840933623431fd06]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:581:40
[INFO] [stdout]   28:     0x65031713af46 - std[840933623431fd06]::panicking::catch_unwind::<isize, std[840933623431fd06]::rt::lang_start_internal::{closure#0}>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:544:19
[INFO] [stdout]   29:     0x65031713af46 - std[840933623431fd06]::panic::catch_unwind::<std[840933623431fd06]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panic.rs:359:14
[INFO] [stdout]   30:     0x65031713af46 - std[840933623431fd06]::rt::lang_start_internal
[INFO] [stdout]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/rt.rs:171:5
[INFO] [stdout]   31:     0x6503170eea71 - std[840933623431fd06]::rt::lang_start::<()>
[INFO] [stdout]   32:     0x6503170efb35 - main
[INFO] [stdout]   33:     0x72c7c68441ca - <unknown>
[INFO] [stdout]   34:     0x72c7c684428b - __libc_start_main
[INFO] [stdout]   35:     0x6503170ee8d5 - _start
[INFO] [stdout]   36:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 20)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.22s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "33db66df913eefb8e4afd2211b24cbe569fd5404594d8a7e5b39fe4488779557", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33db66df913eefb8e4afd2211b24cbe569fd5404594d8a7e5b39fe4488779557", kill_on_drop: false }`
[INFO] [stdout] 33db66df913eefb8e4afd2211b24cbe569fd5404594d8a7e5b39fe4488779557
