[INFO] fetching crate rowboat 0.1.0...
[INFO] testing rowboat-0.1.0 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate rowboat 0.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate rowboat 0.1.0
[INFO] finished tweaking crates.io crate rowboat 0.1.0
[INFO] tweaked toml for crates.io crate rowboat 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rowboat 0.1.0 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rowboat 0.1.0 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `edition` is set on library `rowboat` which is deprecated
[INFO] [stderr] warning: `rowboat` (manifest) generated 1 warning
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded csv-core v0.1.11
[INFO] [stderr]   Downloaded dataframe-macros v0.0.1
[INFO] [stderr]   Downloaded serde v1.0.209
[INFO] [stderr]   Downloaded serde_derive v1.0.209
[INFO] [stderr]   Downloaded cc v1.1.14
[INFO] [stderr]   Downloaded csv v1.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] ee6865f90603e9701e2118781ed7efbe43511e89cac0581d2a09d7ce841f94ec
[INFO] running `Command { std: "docker" "start" "ee6865f90603e9701e2118781ed7efbe43511e89cac0581d2a09d7ce841f94ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee6865f90603e9701e2118781ed7efbe43511e89cac0581d2a09d7ce841f94ec", 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" "ee6865f90603e9701e2118781ed7efbe43511e89cac0581d2a09d7ce841f94ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee6865f90603e9701e2118781ed7efbe43511e89cac0581d2a09d7ce841f94ec", 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" "ee6865f90603e9701e2118781ed7efbe43511e89cac0581d2a09d7ce841f94ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `edition` is set on library `rowboat` which is deprecated
[INFO] [stderr] warning: `rowboat` (manifest) generated 1 warning
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling serde v1.0.209
[INFO] [stderr]    Compiling regex-syntax v0.8.4
[INFO] [stderr]    Compiling iana-time-zone v0.1.60
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling csv-core v0.1.11
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.76
[INFO] [stderr]    Compiling chrono v0.4.38
[INFO] [stderr]    Compiling regex-automata v0.4.7
[INFO] [stderr]    Compiling darling_core v0.20.10
[INFO] [stderr]    Compiling serde_derive v1.0.209
[INFO] [stderr]    Compiling regex v1.10.6
[INFO] [stderr]    Compiling darling_macro v0.20.10
[INFO] [stderr]    Compiling darling v0.20.10
[INFO] [stderr]    Compiling dataframe-macros v0.0.1
[INFO] [stderr]    Compiling csv v1.3.0
[INFO] [stderr]    Compiling rowboat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]   --> src/dataframe/column.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  6 | #[derive(Debug, PartialEq, Clone)]
[INFO] [stdout]    |                 --------- in this derive macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 11 |     type_check: fn(&Cell) -> bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the address of the same function can vary between different codegen units
[INFO] [stdout]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout]    = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/dataframe/dataframe.rs:314:21
[INFO] [stdout]     |
[INFO] [stdout] 314 |     pub fn to_slice(&self) -> DataSlice {
[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] 314 |     pub fn to_slice(&self) -> DataSlice<'_> {
[INFO] [stdout]     |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/dataframe/dataframe.rs:318:18
[INFO] [stdout]     |
[INFO] [stdout] 318 |     pub fn slice(&self, start: usize, stop: usize) -> Result<DataSlice, Error> {
[INFO] [stdout]     |                  ^^^^^ the lifetime is elided here           ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 318 |     pub fn slice(&self, start: usize, stop: usize) -> Result<DataSlice<'_>, Error> {
[INFO] [stdout]     |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/dataframe/dataframe.rs:331:22
[INFO] [stdout]     |
[INFO] [stdout] 331 |     pub fn col_slice(&self, cols: HashSet<&str>) -> Result<DataSlice, Error> {
[INFO] [stdout]     |                      ^^^^^ the lifetime is elided here     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 331 |     pub fn col_slice(&self, cols: HashSet<&str>) -> Result<DataSlice<'_>, Error> {
[INFO] [stdout]     |                                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/dataframe/dataframe.rs:673:21
[INFO] [stdout]     |
[INFO] [stdout] 673 |     pub fn group_by(&self, by: &str) -> DataGroup {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 673 |     pub fn group_by(&self, by: &str) -> DataGroup<'_> {
[INFO] [stdout]     |                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/dataframe/dataslice.rs:38:18
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn slice(&self, start: usize, stop: usize) -> Result<DataSlice, Error> {
[INFO] [stdout]    |                  ^^^^^ the lifetime is elided here           ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn slice(&self, start: usize, stop: usize) -> Result<DataSlice<'_>, Error> {
[INFO] [stdout]    |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/dataframe/dataslice.rs:51:22
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn col_slice(&self, cols: HashSet<&str>) -> Result<DataSlice, Error> {
[INFO] [stdout]    |                      ^^^^^ the lifetime is elided here     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn col_slice(&self, cols: HashSet<&str>) -> Result<DataSlice<'_>, Error> {
[INFO] [stdout]    |                                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 30.35s
[INFO] running `Command { std: "docker" "inspect" "ee6865f90603e9701e2118781ed7efbe43511e89cac0581d2a09d7ce841f94ec", 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" "ee6865f90603e9701e2118781ed7efbe43511e89cac0581d2a09d7ce841f94ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `edition` is set on library `rowboat` which is deprecated
[INFO] [stderr] warning: `rowboat` (manifest) generated 1 warning
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]   --> src/dataframe/column.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  6 | #[derive(Debug, PartialEq, Clone)]
[INFO] [stdout]    |                 --------- in this derive macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 11 |     type_check: fn(&Cell) -> bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the address of the same function can vary between different codegen units
[INFO] [stdout]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout]    = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/dataframe/dataframe.rs:314:21
[INFO] [stdout]     |
[INFO] [stdout] 314 |     pub fn to_slice(&self) -> DataSlice {
[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] 314 |     pub fn to_slice(&self) -> DataSlice<'_> {
[INFO] [stdout]     |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/dataframe/dataframe.rs:318:18
[INFO] [stdout]     |
[INFO] [stdout] 318 |     pub fn slice(&self, start: usize, stop: usize) -> Result<DataSlice, Error> {
[INFO] [stdout]     |                  ^^^^^ the lifetime is elided here           ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 318 |     pub fn slice(&self, start: usize, stop: usize) -> Result<DataSlice<'_>, Error> {
[INFO] [stdout]     |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rowboat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/dataframe/dataframe.rs:331:22
[INFO] [stdout]     |
[INFO] [stdout] 331 |     pub fn col_slice(&self, cols: HashSet<&str>) -> Result<DataSlice, Error> {
[INFO] [stdout]     |                      ^^^^^ the lifetime is elided here     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 331 |     pub fn col_slice(&self, cols: HashSet<&str>) -> Result<DataSlice<'_>, Error> {
[INFO] [stdout]     |                                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/dataframe/dataframe.rs:673:21
[INFO] [stdout]     |
[INFO] [stdout] 673 |     pub fn group_by(&self, by: &str) -> DataGroup {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 673 |     pub fn group_by(&self, by: &str) -> DataGroup<'_> {
[INFO] [stdout]     |                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/dataframe/dataslice.rs:38:18
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn slice(&self, start: usize, stop: usize) -> Result<DataSlice, Error> {
[INFO] [stdout]    |                  ^^^^^ the lifetime is elided here           ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn slice(&self, start: usize, stop: usize) -> Result<DataSlice<'_>, Error> {
[INFO] [stdout]    |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/dataframe/dataslice.rs:51:22
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn col_slice(&self, cols: HashSet<&str>) -> Result<DataSlice, Error> {
[INFO] [stdout]    |                      ^^^^^ the lifetime is elided here     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn col_slice(&self, cols: HashSet<&str>) -> Result<DataSlice<'_>, Error> {
[INFO] [stdout]    |                                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]   --> src/dataframe/column.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  6 | #[derive(Debug, PartialEq, Clone)]
[INFO] [stdout]    |                 --------- in this derive macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 11 |     type_check: fn(&Cell) -> bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the address of the same function can vary between different codegen units
[INFO] [stdout]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout]    = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/dataframe/dataframe.rs:314:21
[INFO] [stdout]     |
[INFO] [stdout] 314 |     pub fn to_slice(&self) -> DataSlice {
[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] 314 |     pub fn to_slice(&self) -> DataSlice<'_> {
[INFO] [stdout]     |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/dataframe/dataframe.rs:318:18
[INFO] [stdout]     |
[INFO] [stdout] 318 |     pub fn slice(&self, start: usize, stop: usize) -> Result<DataSlice, Error> {
[INFO] [stdout]     |                  ^^^^^ the lifetime is elided here           ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 318 |     pub fn slice(&self, start: usize, stop: usize) -> Result<DataSlice<'_>, Error> {
[INFO] [stdout]     |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/dataframe/dataframe.rs:331:22
[INFO] [stdout]     |
[INFO] [stdout] 331 |     pub fn col_slice(&self, cols: HashSet<&str>) -> Result<DataSlice, Error> {
[INFO] [stdout]     |                      ^^^^^ the lifetime is elided here     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 331 |     pub fn col_slice(&self, cols: HashSet<&str>) -> Result<DataSlice<'_>, Error> {
[INFO] [stdout]     |                                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/dataframe/dataframe.rs:673:21
[INFO] [stdout]     |
[INFO] [stdout] 673 |     pub fn group_by(&self, by: &str) -> DataGroup {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 673 |     pub fn group_by(&self, by: &str) -> DataGroup<'_> {
[INFO] [stdout]     |                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/dataframe/dataslice.rs:38:18
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn slice(&self, start: usize, stop: usize) -> Result<DataSlice, Error> {
[INFO] [stdout]    |                  ^^^^^ the lifetime is elided here           ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn slice(&self, start: usize, stop: usize) -> Result<DataSlice<'_>, Error> {
[INFO] [stdout]    |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/dataframe/dataslice.rs:51:22
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn col_slice(&self, cols: HashSet<&str>) -> Result<DataSlice, Error> {
[INFO] [stdout]    |                      ^^^^^ the lifetime is elided here     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn col_slice(&self, cols: HashSet<&str>) -> Result<DataSlice<'_>, Error> {
[INFO] [stdout]    |                                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 4.90s
[INFO] running `Command { std: "docker" "inspect" "ee6865f90603e9701e2118781ed7efbe43511e89cac0581d2a09d7ce841f94ec", 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" "ee6865f90603e9701e2118781ed7efbe43511e89cac0581d2a09d7ce841f94ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `edition` is set on library `rowboat` which is deprecated
[INFO] [stderr] warning: `rowboat` (manifest) generated 1 warning
[INFO] [stderr] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stderr]   --> src/dataframe/column.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr]  6 | #[derive(Debug, PartialEq, Clone)]
[INFO] [stderr]    |                 --------- in this derive macro expansion
[INFO] [stderr] ...
[INFO] [stderr] 11 |     type_check: fn(&Cell) -> bool,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: the address of the same function can vary between different codegen units
[INFO] [stderr]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stderr]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stderr]    = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/dataframe/dataframe.rs:314:21
[INFO] [stderr]     |
[INFO] [stderr] 314 |     pub fn to_slice(&self) -> DataSlice {
[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] 314 |     pub fn to_slice(&self) -> DataSlice<'_> {
[INFO] [stderr]     |                                        ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/dataframe/dataframe.rs:318:18
[INFO] [stderr]     |
[INFO] [stderr] 318 |     pub fn slice(&self, start: usize, stop: usize) -> Result<DataSlice, Error> {
[INFO] [stderr]     |                  ^^^^^ the lifetime is elided here           ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 318 |     pub fn slice(&self, start: usize, stop: usize) -> Result<DataSlice<'_>, Error> {
[INFO] [stderr]     |                                                                       ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/dataframe/dataframe.rs:331:22
[INFO] [stderr]     |
[INFO] [stderr] 331 |     pub fn col_slice(&self, cols: HashSet<&str>) -> Result<DataSlice, Error> {
[INFO] [stderr]     |                      ^^^^^ the lifetime is elided here     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 331 |     pub fn col_slice(&self, cols: HashSet<&str>) -> Result<DataSlice<'_>, Error> {
[INFO] [stderr]     |                                                                     ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/dataframe/dataframe.rs:673:21
[INFO] [stderr]     |
[INFO] [stderr] 673 |     pub fn group_by(&self, by: &str) -> DataGroup {
[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] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 673 |     pub fn group_by(&self, by: &str) -> DataGroup<'_> {
[INFO] [stderr]     |                                                  ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/dataframe/dataslice.rs:38:18
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn slice(&self, start: usize, stop: usize) -> Result<DataSlice, Error> {
[INFO] [stderr]    |                  ^^^^^ the lifetime is elided here           ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn slice(&self, start: usize, stop: usize) -> Result<DataSlice<'_>, Error> {
[INFO] [stderr]    |                                                                       ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/dataframe/dataslice.rs:51:22
[INFO] [stderr]    |
[INFO] [stderr] 51 |     pub fn col_slice(&self, cols: HashSet<&str>) -> Result<DataSlice, Error> {
[INFO] [stderr]    |                      ^^^^^ the lifetime is elided here     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 51 |     pub fn col_slice(&self, cols: HashSet<&str>) -> Result<DataSlice<'_>, Error> {
[INFO] [stderr]    |                                                                     ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `rowboat` (lib) generated 7 warnings (run `cargo fix --lib -p rowboat` to apply 6 suggestions)
[INFO] [stderr] warning: `rowboat` (lib test) generated 7 warnings (7 duplicates)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/dataframe/lib.rs (/opt/rustwide/target/release/deps/rowboat-3ad441154ba78c6d)
[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/main.rs (/opt/rustwide/target/release/deps/rowboat-917f3244c142a9c8)
[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 tests/integration_test.rs (/opt/rustwide/target/release/deps/integration_test-f9f06375f9658de9)
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test describe ... ok
[INFO] [stdout] test iter_sql ... ok
[INFO] [stdout] test drop ... ok
[INFO] [stdout] test example ... ok
[INFO] [stdout] test filter_dataframe ... ok
[INFO] [stdout] test group ... ok
[INFO] [stdout] test into_sort_dataframe ... ok
[INFO] [stdout] test opt_dataframe ... ok
[INFO] [stdout] test iterrows ... ok
[INFO] [stdout] test mismatched_types ... ok
[INFO] [stdout] test apply_dataframe ... ok
[INFO] [stdout] test join_dataframe ... ok
[INFO] [stdout] test sort_dataframe ... ok
[INFO] [stdout] test slice_dataframe ... ok
[INFO] [stdout] test from_structs ... ok
[INFO] [stdout] test csv_dataframe ... FAILED
[INFO] [stdout] test extend_dataframe ... ok
[INFO] [stdout] test concat_dataframe ... ok
[INFO] [stdout] test errors ... ok
[INFO] [stdout] test index_errors ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- csv_dataframe stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'csv_dataframe' (720) panicked at tests/integration_test.rs:570:39:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Error(Io(Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }))
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x640062fe8e21 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x640062fff21a - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    2:     0x640062fed2bc - <alloc[2182bb758b4b3781]::vec::Vec<u8> as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x640062fc5416 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x640062fe1589 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]    5:     0x640062e84b50 - test[9d35eded1c95d3be]::test_main_inner::<test[9d35eded1c95d3be]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]    6:     0x640062fe1742 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x640062fc54c2 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x640062fbe249 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x640062fc60bd - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]   10:     0x640062fff9fc - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]   11:     0x640062fff7d2 - core[df12db4294e9bfd3]::result::unwrap_failed
[INFO] [stdout]   12:     0x640062e544ae - <integration_test[8d31714e7f566998]::csv_dataframe::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   13:     0x640062e77e3b - test[9d35eded1c95d3be]::__rust_begin_short_backtrace::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]   14:     0x640062e854a5 - test[9d35eded1c95d3be]::run_test::{closure#0}
[INFO] [stdout]   15:     0x640062e7ed64 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>
[INFO] [stdout]   16:     0x640062e88602 - <std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   17:     0x640062fe86f9 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   18:     0x7d67b392cdfa - <unknown>
[INFO] [stdout]   19:     0x7d67b39c03d4 - clone
[INFO] [stderr] error: test failed, to rerun pass `--test integration_test`
[INFO] [stdout]   20:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     csv_dataframe
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 19 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ee6865f90603e9701e2118781ed7efbe43511e89cac0581d2a09d7ce841f94ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee6865f90603e9701e2118781ed7efbe43511e89cac0581d2a09d7ce841f94ec", kill_on_drop: false }`
[INFO] [stdout] ee6865f90603e9701e2118781ed7efbe43511e89cac0581d2a09d7ce841f94ec
