[INFO] fetching crate esyn 0.9.1...
[INFO] testing esyn-0.9.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate esyn 0.9.1 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate esyn 0.9.1
[INFO] finished tweaking crates.io crate esyn 0.9.1
[INFO] tweaked toml for crates.io crate esyn 0.9.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate esyn 0.9.1 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate esyn 0.9.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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 quote v1.0.35
[INFO] [stderr]   Downloaded esyn-derive v0.9.1
[INFO] [stderr]   Downloaded thiserror v1.0.58
[INFO] [stderr]   Downloaded prettyplease v0.2.17
[INFO] [stderr]   Downloaded proc-macro2 v1.0.79
[INFO] [stderr]   Downloaded thiserror-impl v1.0.58
[INFO] [stderr]   Downloaded syn v2.0.58
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 288f7e4c721faeb53045c561a786a33e5ad5ba1ed899e2900339e2b3cfe3c3e7
[INFO] running `Command { std: "docker" "start" "-a" "288f7e4c721faeb53045c561a786a33e5ad5ba1ed899e2900339e2b3cfe3c3e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "288f7e4c721faeb53045c561a786a33e5ad5ba1ed899e2900339e2b3cfe3c3e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "288f7e4c721faeb53045c561a786a33e5ad5ba1ed899e2900339e2b3cfe3c3e7", kill_on_drop: false }`
[INFO] [stdout] 288f7e4c721faeb53045c561a786a33e5ad5ba1ed899e2900339e2b3cfe3c3e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c5c803b49a35c32e4e09bdd92b6a610ca367f09bf2c93e083bb683fc0c54808
[INFO] running `Command { std: "docker" "start" "-a" "4c5c803b49a35c32e4e09bdd92b6a610ca367f09bf2c93e083bb683fc0c54808", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling thiserror v1.0.58
[INFO] [stderr]    Compiling prettyplease v0.2.17
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling esyn-derive v0.9.1
[INFO] [stderr]    Compiling esyn v0.9.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `sd`
[INFO] [stdout]   --> src/ext/duration.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |         let sd = SynDur::from_str(&tmp);
[INFO] [stdout]    |             ^^ help: if this is intentional, prefix it with an underscore: `_sd`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `num` and `suffix` are never read
[INFO] [stdout]   --> src/ext/duration.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | struct SynDur {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 38 |     num: u128,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 39 |     suffix: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_string` is never used
[INFO] [stdout]   --> src/ext/duration.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | impl SynDur {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 62 |     fn to_string(&self) -> String {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `FnVisit` is never used
[INFO] [stdout]   --> src/visit.rs:21:10
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub type FnVisit<'other, 'ast, Input, Output> = Box<dyn FnMut(Input) -> Option<Output> + 'other>;
[INFO] [stdout]    |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `WrapExprBlock` is never constructed
[INFO] [stdout]   --> src/visit.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub struct WrapExprBlock<'ast> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/parser.rs:152:17
[INFO] [stdout]     |
[INFO] [stdout] 152 |     fn _get_fn(&'ast self, fn_name: &str) -> Res<&'ast FnBlock> {
[INFO] [stdout]     |                 ^^^^                              ---- ------- the same lifetime is hidden here
[INFO] [stdout]     |                 |                                 |
[INFO] [stdout]     |                 the lifetime is named here        the same lifetime is named 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: consistently use `'ast`
[INFO] [stdout]     |
[INFO] [stdout] 152 |     fn _get_fn(&'ast self, fn_name: &str) -> Res<&'ast FnBlock<'ast>> {
[INFO] [stdout]     |                                                               ++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.31s
[INFO] running `Command { std: "docker" "inspect" "4c5c803b49a35c32e4e09bdd92b6a610ca367f09bf2c93e083bb683fc0c54808", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c5c803b49a35c32e4e09bdd92b6a610ca367f09bf2c93e083bb683fc0c54808", kill_on_drop: false }`
[INFO] [stdout] 4c5c803b49a35c32e4e09bdd92b6a610ca367f09bf2c93e083bb683fc0c54808
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2aa68aae23ed3fe68a45d9979919122ce833452dda868932534c496626322bf
[INFO] running `Command { std: "docker" "start" "-a" "d2aa68aae23ed3fe68a45d9979919122ce833452dda868932534c496626322bf", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `sd`
[INFO] [stdout]   --> src/ext/duration.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |         let sd = SynDur::from_str(&tmp);
[INFO] [stdout]    |             ^^ help: if this is intentional, prefix it with an underscore: `_sd`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `num` and `suffix` are never read
[INFO] [stdout]   --> src/ext/duration.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | struct SynDur {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 38 |     num: u128,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 39 |     suffix: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_string` is never used
[INFO] [stdout]   --> src/ext/duration.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | impl SynDur {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 62 |     fn to_string(&self) -> String {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `FnVisit` is never used
[INFO] [stdout]   --> src/visit.rs:21:10
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub type FnVisit<'other, 'ast, Input, Output> = Box<dyn FnMut(Input) -> Option<Output> + 'other>;
[INFO] [stdout]    |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `WrapExprBlock` is never constructed
[INFO] [stdout]   --> src/visit.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub struct WrapExprBlock<'ast> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/parser.rs:152:17
[INFO] [stdout]     |
[INFO] [stdout] 152 |     fn _get_fn(&'ast self, fn_name: &str) -> Res<&'ast FnBlock> {
[INFO] [stdout]     |                 ^^^^                              ---- ------- the same lifetime is hidden here
[INFO] [stdout]     |                 |                                 |
[INFO] [stdout]     |                 the lifetime is named here        the same lifetime is named 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: consistently use `'ast`
[INFO] [stdout]     |
[INFO] [stdout] 152 |     fn _get_fn(&'ast self, fn_name: &str) -> Res<&'ast FnBlock<'ast>> {
[INFO] [stdout]     |                                                               ++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling esyn v0.9.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `sd`
[INFO] [stdout]   --> src/ext/duration.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |         let sd = SynDur::from_str(&tmp);
[INFO] [stdout]    |             ^^ help: if this is intentional, prefix it with an underscore: `_sd`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `num` and `suffix` are never read
[INFO] [stdout]   --> src/ext/duration.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | struct SynDur {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 38 |     num: u128,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 39 |     suffix: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_string` is never used
[INFO] [stdout]   --> src/ext/duration.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | impl SynDur {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 62 |     fn to_string(&self) -> String {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `FnVisit` is never used
[INFO] [stdout]   --> src/visit.rs:21:10
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub type FnVisit<'other, 'ast, Input, Output> = Box<dyn FnMut(Input) -> Option<Output> + 'other>;
[INFO] [stdout]    |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `WrapExprBlock` is never constructed
[INFO] [stdout]   --> src/visit.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub struct WrapExprBlock<'ast> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/parser.rs:152:17
[INFO] [stdout]     |
[INFO] [stdout] 152 |     fn _get_fn(&'ast self, fn_name: &str) -> Res<&'ast FnBlock> {
[INFO] [stdout]     |                 ^^^^                              ---- ------- the same lifetime is hidden here
[INFO] [stdout]     |                 |                                 |
[INFO] [stdout]     |                 the lifetime is named here        the same lifetime is named 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: consistently use `'ast`
[INFO] [stdout]     |
[INFO] [stdout] 152 |     fn _get_fn(&'ast self, fn_name: &str) -> Res<&'ast FnBlock<'ast>> {
[INFO] [stdout]     |                                                               ++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `Command { std: "docker" "inspect" "d2aa68aae23ed3fe68a45d9979919122ce833452dda868932534c496626322bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2aa68aae23ed3fe68a45d9979919122ce833452dda868932534c496626322bf", kill_on_drop: false }`
[INFO] [stdout] d2aa68aae23ed3fe68a45d9979919122ce833452dda868932534c496626322bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9917619f14bc08e45112dd6fcb31036b09616afa5a1524baadd147511d2aa58a
[INFO] running `Command { std: "docker" "start" "-a" "9917619f14bc08e45112dd6fcb31036b09616afa5a1524baadd147511d2aa58a", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `sd`
[INFO] [stderr]   --> src/ext/duration.rs:11:13
[INFO] [stderr]    |
[INFO] [stderr] 11 |         let sd = SynDur::from_str(&tmp);
[INFO] [stderr]    |             ^^ help: if this is intentional, prefix it with an underscore: `_sd`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `num` and `suffix` are never read
[INFO] [stderr]   --> src/ext/duration.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 37 | struct SynDur {
[INFO] [stderr]    |        ------ fields in this struct
[INFO] [stderr] 38 |     num: u128,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 39 |     suffix: String,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `to_string` is never used
[INFO] [stderr]   --> src/ext/duration.rs:62:8
[INFO] [stderr]    |
[INFO] [stderr] 42 | impl SynDur {
[INFO] [stderr]    | ----------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 62 |     fn to_string(&self) -> String {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `FnVisit` is never used
[INFO] [stderr]   --> src/visit.rs:21:10
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub type FnVisit<'other, 'ast, Input, Output> = Box<dyn FnMut(Input) -> Option<Output> + 'other>;
[INFO] [stderr]    |          ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `WrapExprBlock` is never constructed
[INFO] [stderr]   --> src/visit.rs:28:12
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub struct WrapExprBlock<'ast> {
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stderr]    --> src/parser.rs:152:17
[INFO] [stderr]     |
[INFO] [stderr] 152 |     fn _get_fn(&'ast self, fn_name: &str) -> Res<&'ast FnBlock> {
[INFO] [stderr]     |                 ^^^^                              ---- ------- the same lifetime is hidden here
[INFO] [stderr]     |                 |                                 |
[INFO] [stderr]     |                 the lifetime is named here        the same lifetime is named 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: consistently use `'ast`
[INFO] [stderr]     |
[INFO] [stderr] 152 |     fn _get_fn(&'ast self, fn_name: &str) -> Res<&'ast FnBlock<'ast>> {
[INFO] [stderr]     |                                                               ++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `esyn` (lib) generated 6 warnings
[INFO] [stderr] warning: `esyn` (lib test) generated 6 warnings (6 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/esyn-cef60f9c5f2f4d57)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test auto::tests::test_expr_bool ... ok
[INFO] [stdout] test auto::tests::test_expr_int ... ok
[INFO] [stdout] test auto::tests::test_expr_float ... ok
[INFO] [stdout] test auto::tests::test_expr_box_vec ... ok
[INFO] [stdout] test auto::tests::test_expr_option_vec ... ok
[INFO] [stdout] test auto::tests::test_expr_tuple ... ok
[INFO] [stdout] test auto::tests::test_expr_vec ... ok
[INFO] [stdout] test auto::tests::test_expr_option ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests esyn
[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] running `Command { std: "docker" "inspect" "9917619f14bc08e45112dd6fcb31036b09616afa5a1524baadd147511d2aa58a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9917619f14bc08e45112dd6fcb31036b09616afa5a1524baadd147511d2aa58a", kill_on_drop: false }`
[INFO] [stdout] 9917619f14bc08e45112dd6fcb31036b09616afa5a1524baadd147511d2aa58a
