[INFO] fetching crate tsv 0.1.1...
[INFO] testing tsv-0.1.1 against 1.100.0-beta.1 for beta-1.100-2
[INFO] extracting crate tsv 0.1.1 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate tsv 0.1.1
[INFO] finished tweaking crates.io crate tsv 0.1.1
[INFO] tweaked toml for crates.io crate tsv 0.1.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tsv 0.1.1 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "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" "+1.100.0-beta.1" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 16 packages to highest compatible versions
[INFO] [stderr]       Adding trees v0.2.1 (available: v0.4.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `tsv` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 9550b32e357777543d5bae2db70d0e7895822da1722e49291a95c6c5657b56ee
[INFO] running `Command { std: "docker" "start" "9550b32e357777543d5bae2db70d0e7895822da1722e49291a95c6c5657b56ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9550b32e357777543d5bae2db70d0e7895822da1722e49291a95c6c5657b56ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9550b32e357777543d5bae2db70d0e7895822da1722e49291a95c6c5657b56ee" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9550b32e357777543d5bae2db70d0e7895822da1722e49291a95c6c5657b56ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9550b32e357777543d5bae2db70d0e7895822da1722e49291a95c6c5657b56ee" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `tsv` (manifest) generated 1 warning
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling indexed v0.1.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.107
[INFO] [stderr]    Compiling serde v1.0.229
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]    Compiling trees v0.2.1
[INFO] [stderr]    Compiling quote v0.4.2
[INFO] [stderr]    Compiling quote v1.0.47
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]    Compiling syn v3.0.6
[INFO] [stderr]    Compiling reflection v0.1.3
[INFO] [stderr]    Compiling serde_derive_internals v0.21.0
[INFO] [stderr]    Compiling reflection_derive v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.229
[INFO] [stderr]    Compiling tsv v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:63:32
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn cause(&self) -> Option<&dyn error::Error> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/error.rs:123:60
[INFO] [stdout]     |
[INFO] [stdout] 123 |     fn invalid_type( unexp: ::serde::de::Unexpected, exp: &::serde::de::Expected ) -> Self {
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 123 |     fn invalid_type( unexp: ::serde::de::Unexpected, exp: &dyn (::serde::de::Expected) ) -> Self {
[INFO] [stdout]     |                                                            +++++                     +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/de.rs:149:26
[INFO] [stdout]     |
[INFO] [stdout] 149 |     fn to_parent_column( &mut self ) -> Option<Visit<Column>> { self.columns.to_parent() }
[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] 149 |     fn to_parent_column( &mut self ) -> Option<Visit<'_, Column>> { self.columns.to_parent() }
[INFO] [stdout]     |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: unused dependency `reflection_derive`
[INFO] [stderr]  --> Cargo.toml:4:15
[INFO] [stderr]   |
[INFO] [stderr] 4 | [dependencies.reflection_derive]
[INFO] [stderr]   |               ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `reflection_derive`
[INFO] [stderr] warning: unused dependency `serde_derive`
[INFO] [stderr]   --> Cargo.toml:10:15
[INFO] [stderr]    |
[INFO] [stderr] 10 | [dependencies.serde_derive]
[INFO] [stderr]    |               ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] help: consider removing the dependency on `serde_derive`
[INFO] [stderr] warning: `tsv` (manifest) generated 2 warnings
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.58s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.12.15
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "9550b32e357777543d5bae2db70d0e7895822da1722e49291a95c6c5657b56ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9550b32e357777543d5bae2db70d0e7895822da1722e49291a95c6c5657b56ee" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `tsv` (manifest) generated 1 warning
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:63:32
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn cause(&self) -> Option<&dyn error::Error> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/error.rs:123:60
[INFO] [stdout]     |
[INFO] [stdout] 123 |     fn invalid_type( unexp: ::serde::de::Unexpected, exp: &::serde::de::Expected ) -> Self {
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 123 |     fn invalid_type( unexp: ::serde::de::Unexpected, exp: &dyn (::serde::de::Expected) ) -> Self {
[INFO] [stdout]     |                                                            +++++                     +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tsv v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/de.rs:149:26
[INFO] [stdout]     |
[INFO] [stdout] 149 |     fn to_parent_column( &mut self ) -> Option<Visit<Column>> { self.columns.to_parent() }
[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] 149 |     fn to_parent_column( &mut self ) -> Option<Visit<'_, Column>> { self.columns.to_parent() }
[INFO] [stdout]     |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/ser.rs:500:76
[INFO] [stdout]     |
[INFO] [stdout] 500 |         struct S{ b: bool, vs: Vec<&'static str>, i: i32, s: &'static str };
[INFO] [stdout]     |                                                                            ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/de.rs:660:66
[INFO] [stdout]     |
[INFO] [stdout] 660 |         struct Wrapper<'a>{ #[serde(borrow)] ts: TestStruct<'a> };
[INFO] [stdout]     |                                                                  ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/de.rs:721:10
[INFO] [stdout]     |
[INFO] [stdout] 721 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:63:32
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn cause(&self) -> Option<&dyn error::Error> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/error.rs:123:60
[INFO] [stdout]     |
[INFO] [stdout] 123 |     fn invalid_type( unexp: ::serde::de::Unexpected, exp: &::serde::de::Expected ) -> Self {
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 123 |     fn invalid_type( unexp: ::serde::de::Unexpected, exp: &dyn (::serde::de::Expected) ) -> Self {
[INFO] [stdout]     |                                                            +++++                     +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/de.rs:145:26
[INFO] [stdout]     |
[INFO] [stdout] 145 |     fn to_parent_column( &mut self ) -> Option<Visit<Column>> { self.columns.to_parent().map( |visit| { eprintln!( "to_parent: {:?}...
[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] 145 |     fn to_parent_column( &mut self ) -> Option<Visit<'_, Column>> { self.columns.to_parent().map( |visit| { eprintln!( "to_parent: {:?}", visit ); visit })}
[INFO] [stdout]     |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: unused dependency `reflection_derive`
[INFO] [stderr]  --> Cargo.toml:4:15
[INFO] [stderr]   |
[INFO] [stderr] 4 | [dependencies.reflection_derive]
[INFO] [stderr]   |               ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `reflection_derive`
[INFO] [stderr] help: to still use for development builds, move to `dev-dependencies`
[INFO] [stderr] warning: unused dependency `serde_derive`
[INFO] [stderr]   --> Cargo.toml:10:15
[INFO] [stderr]    |
[INFO] [stderr] 10 | [dependencies.serde_derive]
[INFO] [stderr]    |               ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] help: consider removing the dependency on `serde_derive`
[INFO] [stderr] help: to still use for development builds, move to `dev-dependencies`
[INFO] [stderr] warning: `tsv` (manifest) generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.07s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.12.15
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "9550b32e357777543d5bae2db70d0e7895822da1722e49291a95c6c5657b56ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "9550b32e357777543d5bae2db70d0e7895822da1722e49291a95c6c5657b56ee" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `tsv` (manifest) generated 1 warning
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:63:32
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn cause(&self) -> Option<&dyn error::Error> {
[INFO] [stderr]    |                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/error.rs:123:60
[INFO] [stderr]     |
[INFO] [stderr] 123 |     fn invalid_type( unexp: ::serde::de::Unexpected, exp: &::serde::de::Expected ) -> Self {
[INFO] [stderr]     |                                                            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 123 |     fn invalid_type( unexp: ::serde::de::Unexpected, exp: &dyn (::serde::de::Expected) ) -> Self {
[INFO] [stderr]     |                                                            +++++                     +
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/de.rs:149:26
[INFO] [stderr]     |
[INFO] [stderr] 149 |     fn to_parent_column( &mut self ) -> Option<Visit<Column>> { self.columns.to_parent() }
[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] 149 |     fn to_parent_column( &mut self ) -> Option<Visit<'_, Column>> { self.columns.to_parent() }
[INFO] [stderr]     |                                                      +++
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/ser.rs:500:76
[INFO] [stderr]     |
[INFO] [stderr] 500 |         struct S{ b: bool, vs: Vec<&'static str>, i: i32, s: &'static str };
[INFO] [stderr]     |                                                                            ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/de.rs:660:66
[INFO] [stderr]     |
[INFO] [stderr] 660 |         struct Wrapper<'a>{ #[serde(borrow)] ts: TestStruct<'a> };
[INFO] [stderr]     |                                                                  ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/de.rs:721:10
[INFO] [stderr]     |
[INFO] [stderr] 721 |         };
[INFO] [stderr]     |          ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/de.rs:145:26
[INFO] [stderr]     |
[INFO] [stderr] 145 |     fn to_parent_column( &mut self ) -> Option<Visit<Column>> { self.columns.to_parent().map( |visit| { eprintln!( "to_parent: {:?}...
[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] 145 |     fn to_parent_column( &mut self ) -> Option<Visit<'_, Column>> { self.columns.to_parent().map( |visit| { eprintln!( "to_parent: {:?}", visit ); visit })}
[INFO] [stderr]     |                                                      +++
[INFO] [stderr] 
[INFO] [stderr] warning: `tsv` (lib) generated 3 warnings (run `cargo fix --lib -p tsv` to apply 3 suggestions)
[INFO] [stderr] warning: `tsv` (lib test) generated 6 warnings (2 duplicates) (run `cargo fix --lib -p tsv --tests` to apply 1 suggestion)
[INFO] [stderr] warning: unused dependency `reflection_derive`
[INFO] [stderr]  --> Cargo.toml:4:15
[INFO] [stderr]   |
[INFO] [stderr] 4 | [dependencies.reflection_derive]
[INFO] [stderr]   |               ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `reflection_derive`
[INFO] [stderr] help: to still use for development builds, move to `dev-dependencies`
[INFO] [stderr] warning: unused dependency `serde_derive`
[INFO] [stderr]   --> Cargo.toml:10:15
[INFO] [stderr]    |
[INFO] [stderr] 10 | [dependencies.serde_derive]
[INFO] [stderr]    |               ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] help: consider removing the dependency on `serde_derive`
[INFO] [stderr] help: to still use for development builds, move to `dev-dependencies`
[INFO] [stderr] warning: `tsv` (manifest) generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.12.15
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/build/tsv/871f12bf786aa2ca/out/tsv-871f12bf786aa2ca)
[INFO] [stdout] 
[INFO] [stdout] running 25 tests
[INFO] [stdout] test de::tests::test_map ... ok
[INFO] [stdout] test de::tests::cargo_tsv ... ok
[INFO] [stdout] test de::tests::test_enum ... ok
[INFO] [stdout] test de::tests::test_option ... ok
[INFO] [stdout] test de::tests::test_unit_struct ... ok
[INFO] [stdout] test de::tests::test_misc ... ok
[INFO] [stdout] test de::tests::test_vec_2d ... ok
[INFO] [stdout] test ser::tests::test_misc ... ok
[INFO] [stdout] test ser::tests::test_option ... ok
[INFO] [stdout] test de::tests::test_struct ... ok
[INFO] [stdout] test de::tests::test_vec_3d ... ok
[INFO] [stdout] test ser::tests::test_unit_struct ... ok
[INFO] [stdout] test ser::tests::cargo_tsv ... ok
[INFO] [stdout] test ser::tests::test_vec_1d ... ok
[INFO] [stdout] test ser::tests::test_vec_3d ... ok
[INFO] [stdout] test ser::tests::test_unit ... ok
[INFO] [stdout] test ser::tests::test_enum ... ok
[INFO] [stdout] test ser::tests::test_map ... ok
[INFO] [stdout] test ser::tests::test_vec_2d ... ok
[INFO] [stdout] test ser::tests::test_struct ... ok
[INFO] [stdout] test de::tests::test_enum2 ... ok
[INFO] [stdout] test ser::tests::test_tuple ... ok
[INFO] [stdout] test de::tests::test_vec_1d ... ok
[INFO] [stdout] test de::tests::test_unit ... ok
[INFO] [stdout] test de::tests::test_tuple ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 25 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tsv
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 7) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.28s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9550b32e357777543d5bae2db70d0e7895822da1722e49291a95c6c5657b56ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9550b32e357777543d5bae2db70d0e7895822da1722e49291a95c6c5657b56ee", kill_on_drop: false }`
[INFO] [stdout] 9550b32e357777543d5bae2db70d0e7895822da1722e49291a95c6c5657b56ee
