[INFO] fetching crate memento 0.2.1...
[INFO] testing memento-0.2.1 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate memento 0.2.1 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate memento 0.2.1
[INFO] finished tweaking crates.io crate memento 0.2.1
[INFO] tweaked toml for crates.io crate memento 0.2.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate memento 0.2.1 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 22 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc4f7eb8aab177fe334b998f189be18d8f6cd57355b6d54d2d7a0d79b25e861c
[INFO] running `Command { std: "docker" "start" "-a" "dc4f7eb8aab177fe334b998f189be18d8f6cd57355b6d54d2d7a0d79b25e861c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc4f7eb8aab177fe334b998f189be18d8f6cd57355b6d54d2d7a0d79b25e861c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc4f7eb8aab177fe334b998f189be18d8f6cd57355b6d54d2d7a0d79b25e861c", kill_on_drop: false }`
[INFO] [stdout] dc4f7eb8aab177fe334b998f189be18d8f6cd57355b6d54d2d7a0d79b25e861c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81478d23707dce7f9c82ab752e3f46f1d764cfd355ceb7e49c75b84ade47a390
[INFO] running `Command { std: "docker" "start" "-a" "81478d23707dce7f9c82ab752e3f46f1d764cfd355ceb7e49c75b84ade47a390", kill_on_drop: false }`
[INFO] [stderr]    Compiling mio v1.1.0
[INFO] [stderr]    Compiling tokio v1.48.0
[INFO] [stderr]    Compiling tokio-stream v0.1.17
[INFO] [stderr]    Compiling memento v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.01s
[INFO] running `Command { std: "docker" "inspect" "81478d23707dce7f9c82ab752e3f46f1d764cfd355ceb7e49c75b84ade47a390", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81478d23707dce7f9c82ab752e3f46f1d764cfd355ceb7e49c75b84ade47a390", kill_on_drop: false }`
[INFO] [stdout] 81478d23707dce7f9c82ab752e3f46f1d764cfd355ceb7e49c75b84ade47a390
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 801e998e7adaf40460592a6790df716ba6ba5b8df5a6fce33d73f27421da31a3
[INFO] running `Command { std: "docker" "start" "-a" "801e998e7adaf40460592a6790df716ba6ba5b8df5a6fce33d73f27421da31a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling memento v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "801e998e7adaf40460592a6790df716ba6ba5b8df5a6fce33d73f27421da31a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "801e998e7adaf40460592a6790df716ba6ba5b8df5a6fce33d73f27421da31a3", kill_on_drop: false }`
[INFO] [stdout] 801e998e7adaf40460592a6790df716ba6ba5b8df5a6fce33d73f27421da31a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 591d73710a2e34d3271e5262687b739c8dfd3e37c9dc3c9605b4d830eccad71a
[INFO] running `Command { std: "docker" "start" "-a" "591d73710a2e34d3271e5262687b739c8dfd3e37c9dc3c9605b4d830eccad71a", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/memento-e6fe5669ad692e82)
[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 memento
[INFO] [stdout] 
[INFO] [stdout] running 28 tests
[INFO] [stdout] test src/command.rs - command::Item (line 91) ... FAILED
[INFO] [stdout] test src/command.rs - command::Decr::new (line 228) ... FAILED
[INFO] [stdout] test src/command.rs - command::Incr::new (line 210) ... FAILED
[INFO] [stdout] test src/command.rs - command::Add::new (line 138) ... FAILED
[INFO] [stdout] test src/command.rs - command::Key (line 18) ... FAILED
[INFO] [stdout] test src/command.rs - command::Append::new (line 156) ... FAILED
[INFO] [stdout] test src/memento.rs - memento::Memento::add (line 64) ... FAILED
[INFO] [stdout] test src/lib.rs - new (line 22) ... FAILED
[INFO] [stdout] test src/command.rs - command::Prepend::new (line 174) ... FAILED
[INFO] [stdout] test src/command.rs - command::Set::new (line 120) ... FAILED
[INFO] [stdout] test src/memento.rs - memento::Memento::connect (line 34) ... FAILED
[INFO] [stdout] test src/command.rs - command::Item::expires (line 59) ... ok
[INFO] [stdout] test src/memento.rs - memento::Memento::get (line 109) ... FAILED
[INFO] [stdout] test src/command.rs - command::Item::timeless (line 73) ... ok
[INFO] [stdout] test src/memento.rs - memento::Memento::decr (line 172) ... FAILED
[INFO] [stdout] test src/memento.rs - memento::Memento::append (line 79) ... FAILED
[INFO] [stdout] test src/memento.rs - memento::Memento::gets (line 133) ... FAILED
[INFO] [stdout] test src/memento.rs - memento::Memento::call (line 262) ... FAILED
[INFO] [stdout] test src/command.rs - command::Replace::new (line 192) ... FAILED
[INFO] [stdout] test src/memento.rs - memento::Memento::delete (line 187) ... FAILED
[INFO] [stdout] test src/memento.rs - memento::Memento::quit (line 232) ... FAILED
[INFO] [stdout] test src/memento.rs - memento::Memento::set (line 49) ... FAILED
[INFO] [stdout] test src/memento.rs - memento::Memento::incr (line 157) ... FAILED
[INFO] [stdout] test src/memento.rs - memento::Memento::from_stream (line 17) ... FAILED
[INFO] [stdout] test src/memento.rs - memento::Memento::prepend (line 94) ... FAILED
[INFO] [stdout] test src/memento.rs - memento::Memento::version (line 217) ... FAILED
[INFO] [stdout] test src/memento.rs - memento::Memento::replace (line 202) ... FAILED
[INFO] [stdout] test src/memento.rs - memento::Memento::stats (line 247) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/command.rs - command::Item (line 91) stdout ----
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]  --> src/command.rs:93:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | async fn main() -> memento::Result<()> {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0752`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/command.rs - command::Decr::new (line 228) stdout ----
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]  --> src/command.rs:232:32
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_command_rs_228_0() {
[INFO] [stdout]   |                                      --------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 7 | let cmd = Decr::new("x".parse()?, 1);
[INFO] [stdout]   |                                ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_command_rs_228_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5 | use memento::Decr;
[INFO] [stdout] 6 |
[INFO] [stdout] 7 | let cmd = Decr::new("x".parse()?, 1);
[INFO] [stdout] 8 +     Ok(())
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/command.rs - command::Incr::new (line 210) stdout ----
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]  --> src/command.rs:214:32
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_command_rs_210_0() {
[INFO] [stdout]   |                                      --------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 7 | let cmd = Incr::new("x".parse()?, 1);
[INFO] [stdout]   |                                ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_command_rs_210_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5 | use memento::Incr;
[INFO] [stdout] 6 |
[INFO] [stdout] 7 | let cmd = Incr::new("x".parse()?, 1);
[INFO] [stdout] 8 +     Ok(())
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/command.rs - command::Add::new (line 138) stdout ----
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]  --> src/command.rs:142:31
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_command_rs_138_0() {
[INFO] [stdout]   |                                      --------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 7 | let cmd = Add::new("x".parse()?, Item::timeless("y"));
[INFO] [stdout]   |                               ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_command_rs_138_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5 | use memento::{Item, Add};
[INFO] [stdout] 6 |
[INFO] [stdout] 7 | let cmd = Add::new("x".parse()?, Item::timeless("y"));
[INFO] [stdout] 8 +     Ok(())
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/command.rs - command::Key (line 18) stdout ----
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]  --> src/command.rs:20:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | async fn main() -> memento::Result<()> {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0752`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/command.rs - command::Append::new (line 156) stdout ----
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]  --> src/command.rs:160:34
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_command_rs_156_0() {
[INFO] [stdout]   |                                      --------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 7 | let cmd = Append::new("x".parse()?, Item::timeless("y"));
[INFO] [stdout]   |                                  ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_command_rs_156_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5 | use memento::{Item, Append};
[INFO] [stdout] 6 |
[INFO] [stdout] 7 | let cmd = Append::new("x".parse()?, Item::timeless("y"));
[INFO] [stdout] 8 +     Ok(())
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/memento.rs - memento::Memento::add (line 64) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stdout]  --> src/memento.rs:66:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[tokio::main]
[INFO] [stdout]   |          ^^^^ could not find `main` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]  --> src/memento.rs:67:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | async fn main() -> memento::Result<()> {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0752.
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - new (line 22) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stdout]  --> src/lib.rs:26:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[tokio::main]
[INFO] [stdout]   |          ^^^^ could not find `main` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]  --> src/lib.rs:27:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | async fn main() -> Result<()> {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0752.
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/command.rs - command::Prepend::new (line 174) stdout ----
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]  --> src/command.rs:178:35
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_command_rs_174_0() {
[INFO] [stdout]   |                                      --------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 7 | let cmd = Prepend::new("x".parse()?, Item::timeless("y"));
[INFO] [stdout]   |                                   ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_command_rs_174_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5 | use memento::{Item, Prepend};
[INFO] [stdout] 6 |
[INFO] [stdout] 7 | let cmd = Prepend::new("x".parse()?, Item::timeless("y"));
[INFO] [stdout] 8 +     Ok(())
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/command.rs - command::Set::new (line 120) stdout ----
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]  --> src/command.rs:124:31
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_command_rs_120_0() {
[INFO] [stdout]   |                                      --------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 7 | let cmd = Set::new("x".parse()?, Item::timeless("y"));
[INFO] [stdout]   |                               ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_command_rs_120_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5 | use memento::{Item, Set};
[INFO] [stdout] 6 |
[INFO] [stdout] 7 | let cmd = Set::new("x".parse()?, Item::timeless("y"));
[INFO] [stdout] 8 +     Ok(())
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/memento.rs - memento::Memento::connect (line 34) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stdout]  --> src/memento.rs:36:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[tokio::main]
[INFO] [stdout]   |          ^^^^ could not find `main` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]  --> src/memento.rs:37:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | async fn main() -> memento::Result<()> {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0752.
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/memento.rs - memento::Memento::get (line 109) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stdout]  --> src/memento.rs:111:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[tokio::main]
[INFO] [stdout]   |          ^^^^ could not find `main` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]  --> src/memento.rs:112:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | async fn main() -> memento::Result<()> {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0752.
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/memento.rs - memento::Memento::decr (line 172) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stdout]  --> src/memento.rs:174:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[tokio::main]
[INFO] [stdout]   |          ^^^^ could not find `main` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]  --> src/memento.rs:175:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | async fn main() -> memento::Result<()> {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0752.
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/memento.rs - memento::Memento::append (line 79) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stdout]  --> src/memento.rs:81:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[tokio::main]
[INFO] [stdout]   |          ^^^^ could not find `main` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]  --> src/memento.rs:82:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | async fn main() -> memento::Result<()> {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0752.
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/memento.rs - memento::Memento::gets (line 133) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stdout]  --> src/memento.rs:135:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[tokio::main]
[INFO] [stdout]   |          ^^^^ could not find `main` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]  --> src/memento.rs:136:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | async fn main() -> memento::Result<()> {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0752.
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/memento.rs - memento::Memento::call (line 262) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stdout]  --> src/memento.rs:267:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | #[tokio::main]
[INFO] [stdout]   |          ^^^^ could not find `main` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]  --> src/memento.rs:268:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | async fn main() -> memento::Result<()> {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0752.
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/command.rs - command::Replace::new (line 192) stdout ----
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]  --> src/command.rs:196:35
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_command_rs_192_0() {
[INFO] [stdout]   |                                      --------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 7 | let cmd = Replace::new("x".parse()?, Item::timeless("y"));
[INFO] [stdout]   |                                   ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_command_rs_192_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5 | use memento::{Item, Replace};
[INFO] [stdout] 6 |
[INFO] [stdout] 7 | let cmd = Replace::new("x".parse()?, Item::timeless("y"));
[INFO] [stdout] 8 +     Ok(())
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/memento.rs - memento::Memento::delete (line 187) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stdout]  --> src/memento.rs:189:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[tokio::main]
[INFO] [stdout]   |          ^^^^ could not find `main` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]  --> src/memento.rs:190:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | async fn main() -> memento::Result<()> {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0752.
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/memento.rs - memento::Memento::quit (line 232) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stdout]  --> src/memento.rs:234:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[tokio::main]
[INFO] [stdout]   |          ^^^^ could not find `main` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]  --> src/memento.rs:235:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | async fn main() -> memento::Result<()> {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0752.
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/memento.rs - memento::Memento::set (line 49) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stdout]  --> src/memento.rs:51:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[tokio::main]
[INFO] [stdout]   |          ^^^^ could not find `main` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]  --> src/memento.rs:52:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | async fn main() -> memento::Result<()> {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0752.
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/memento.rs - memento::Memento::incr (line 157) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stdout]  --> src/memento.rs:159:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[tokio::main]
[INFO] [stdout]   |          ^^^^ could not find `main` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]  --> src/memento.rs:160:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | async fn main() -> memento::Result<()> {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0752.
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/memento.rs - memento::Memento::from_stream (line 17) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stdout]  --> src/memento.rs:21:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[tokio::main]
[INFO] [stdout]   |          ^^^^ could not find `main` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]  --> src/memento.rs:22:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | async fn main() -> memento::Result<()> {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0752.
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/memento.rs - memento::Memento::prepend (line 94) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stdout]  --> src/memento.rs:96:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[tokio::main]
[INFO] [stdout]   |          ^^^^ could not find `main` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]  --> src/memento.rs:97:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | async fn main() -> memento::Result<()> {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0752.
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/memento.rs - memento::Memento::version (line 217) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stdout]  --> src/memento.rs:219:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[tokio::main]
[INFO] [stdout]   |          ^^^^ could not find `main` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]  --> src/memento.rs:220:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | async fn main() -> memento::Result<()> {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0752.
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/memento.rs - memento::Memento::replace (line 202) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stdout]  --> src/memento.rs:204:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[tokio::main]
[INFO] [stdout]   |          ^^^^ could not find `main` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]  --> src/memento.rs:205:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | async fn main() -> memento::Result<()> {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0752.
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/memento.rs - memento::Memento::stats (line 247) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: could not find `main` in `tokio`
[INFO] [stdout]  --> src/memento.rs:249:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[tokio::main]
[INFO] [stdout]   |          ^^^^ could not find `main` in `tokio`
[INFO] [stdout] 
[INFO] [stdout] error[E0752]: `main` function is not allowed to be `async`
[INFO] [stdout]  --> src/memento.rs:250:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | async fn main() -> memento::Result<()> {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `main` function is not allowed to be `async`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0752.
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/command.rs - command::Add::new (line 138)
[INFO] [stdout]     src/command.rs - command::Append::new (line 156)
[INFO] [stdout]     src/command.rs - command::Decr::new (line 228)
[INFO] [stdout]     src/command.rs - command::Incr::new (line 210)
[INFO] [stdout]     src/command.rs - command::Item (line 91)
[INFO] [stdout]     src/command.rs - command::Key (line 18)
[INFO] [stdout]     src/command.rs - command::Prepend::new (line 174)
[INFO] [stdout]     src/command.rs - command::Replace::new (line 192)
[INFO] [stdout]     src/command.rs - command::Set::new (line 120)
[INFO] [stdout]     src/lib.rs - new (line 22)
[INFO] [stdout]     src/memento.rs - memento::Memento::add (line 64)
[INFO] [stdout]     src/memento.rs - memento::Memento::append (line 79)
[INFO] [stdout]     src/memento.rs - memento::Memento::call (line 262)
[INFO] [stdout]     src/memento.rs - memento::Memento::connect (line 34)
[INFO] [stdout]     src/memento.rs - memento::Memento::decr (line 172)
[INFO] [stdout]     src/memento.rs - memento::Memento::delete (line 187)
[INFO] [stdout]     src/memento.rs - memento::Memento::from_stream (line 17)
[INFO] [stdout]     src/memento.rs - memento::Memento::get (line 109)
[INFO] [stdout]     src/memento.rs - memento::Memento::gets (line 133)
[INFO] [stdout]     src/memento.rs - memento::Memento::incr (line 157)
[INFO] [stdout]     src/memento.rs - memento::Memento::prepend (line 94)
[INFO] [stdout]     src/memento.rs - memento::Memento::quit (line 232)
[INFO] [stdout]     src/memento.rs - memento::Memento::replace (line 202)
[INFO] [stdout]     src/memento.rs - memento::Memento::set (line 49)
[INFO] [stdout]     src/memento.rs - memento::Memento::stats (line 247)
[INFO] [stdout]     src/memento.rs - memento::Memento::version (line 217)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 2 passed; 26 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.44s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "591d73710a2e34d3271e5262687b739c8dfd3e37c9dc3c9605b4d830eccad71a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "591d73710a2e34d3271e5262687b739c8dfd3e37c9dc3c9605b4d830eccad71a", kill_on_drop: false }`
[INFO] [stdout] 591d73710a2e34d3271e5262687b739c8dfd3e37c9dc3c9605b4d830eccad71a