[INFO] fetching crate libcst 1.8.6...
[INFO] checking libcst-1.8.6 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate libcst 1.8.6 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate libcst 1.8.6
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate libcst 1.8.6
[INFO] tweaked toml for crates.io crate libcst 1.8.6 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate libcst 1.8.6 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate libcst 1.8.6 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7430dcf2d75ebc770354cefdd50bb89bd9a942a95c138dee394d34164e2533c7
[INFO] running `Command { std: "docker" "start" "-a" "7430dcf2d75ebc770354cefdd50bb89bd9a942a95c138dee394d34164e2533c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7430dcf2d75ebc770354cefdd50bb89bd9a942a95c138dee394d34164e2533c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7430dcf2d75ebc770354cefdd50bb89bd9a942a95c138dee394d34164e2533c7", kill_on_drop: false }`
[INFO] [stdout] 7430dcf2d75ebc770354cefdd50bb89bd9a942a95c138dee394d34164e2533c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c75ba11bd7ac1700431bb780573dabb2a1f8f44f977e3232599e3c9f95b5aeb
[INFO] running `Command { std: "docker" "start" "-a" "2c75ba11bd7ac1700431bb780573dabb2a1f8f44f977e3232599e3c9f95b5aeb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling target-lexicon v0.13.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.10
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.9
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[INFO] [stderr]     Checking anstyle v1.0.10
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]     Checking aho-corasick v1.0.4
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[INFO] [stderr]    Compiling serde_json v1.0.125
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[INFO] [stderr]    Compiling libcst_derive v1.8.6
[INFO] [stderr]     Checking thiserror v2.0.12
[INFO] [stderr]    Compiling pyo3-macros v0.26.0
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[INFO] [stderr]     Checking libcst v1.8.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `DeflatedAsynchronous as Asynchronous`, `DeflatedFormattedStringText as FormattedStringText`, and `DeflatedTemplatedStringText as TemplatedStringText`
[INFO] [stdout]   --> src/nodes/mod.rs:57:29
[INFO] [stdout]    |
[INFO] [stdout] 57 |         DeflatedArg as Arg, DeflatedAsynchronous as Asynchronous, DeflatedAttribute as Attribute,
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 68 |         DeflatedFormattedStringText as FormattedStringText, DeflatedFrom as From,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 85 |         DeflatedTemplatedStringText as TemplatedStringText, DeflatedTuple as Tuple,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `DeflatedImportStar as ImportStar`
[INFO] [stdout]   --> src/nodes/mod.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |         DeflatedImportStar as ImportStar, DeflatedSemicolon as Semicolon,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `DeflatedAsynchronous as Asynchronous`, `DeflatedFormattedStringText as FormattedStringText`, and `DeflatedTemplatedStringText as TemplatedStringText`
[INFO] [stdout]   --> src/nodes/mod.rs:57:29
[INFO] [stdout]    |
[INFO] [stdout] 57 |         DeflatedArg as Arg, DeflatedAsynchronous as Asynchronous, DeflatedAttribute as Attribute,
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 68 |         DeflatedFormattedStringText as FormattedStringText, DeflatedFrom as From,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 85 |         DeflatedTemplatedStringText as TemplatedStringText, DeflatedTuple as Tuple,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `DeflatedImportStar as ImportStar`
[INFO] [stdout]   --> src/nodes/mod.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |         DeflatedImportStar as ImportStar, DeflatedSemicolon as Semicolon,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `string_start` is never read
[INFO] [stdout]   --> src/tokenizer/core/string_types.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 76 | pub struct FTStringNode {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 80 |     pub string_start: Option<TextPositionSnapshot>,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FTStringNode` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `lpar` and `rpar` are never used
[INFO] [stdout]   --> src/nodes/traits.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub trait ParenthesizedDeflatedNode<'r, 'a> {
[INFO] [stdout]    |           ------------------------- methods in this trait
[INFO] [stdout] 57 |     fn lpar(&self) -> &Vec<DeflatedLeftParen<'r, 'a>>;
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 58 |     fn rpar(&self) -> &Vec<DeflatedRightParen<'r, 'a>>;
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:23:23
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn tokenize(text: &str) -> Result<Vec<Token>> {
[INFO] [stdout]    |                       ^^^^     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                       |        |          |
[INFO] [stdout]    |                       |        |          the same lifetime is hidden here
[INFO] [stdout]    |                       |        the same lifetime is hidden here
[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] 23 | pub fn tokenize(text: &str) -> Result<'_, Vec<Token<'_>>> {
[INFO] [stdout]    |                                       +++          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:61:30
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub fn parse_statement(text: &str) -> Result<Statement> {
[INFO] [stdout]    |                              ^^^^     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                              |        |      |
[INFO] [stdout]    |                              |        |      the same lifetime is hidden here
[INFO] [stdout]    |                              |        the same lifetime is hidden here
[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] 61 | pub fn parse_statement(text: &str) -> Result<'_, Statement<'_>> {
[INFO] [stdout]    |                                              +++          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:70:31
[INFO] [stdout]    |
[INFO] [stdout] 70 | pub fn parse_expression(text: &str) -> Result<Expression> {
[INFO] [stdout]    |                               ^^^^     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                               |        |      |
[INFO] [stdout]    |                               |        |      the same lifetime is hidden here
[INFO] [stdout]    |                               |        the same lifetime is hidden here
[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] 70 | pub fn parse_expression(text: &str) -> Result<'_, Expression<'_>> {
[INFO] [stdout]    |                                               +++           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<std::result::Result<Infallible, Infallible>, pyo3::Bound<'_, PyString>>
[INFO] [stdout]   --> src/parser/errors.rs:57:37
[INFO] [stdout]    |
[INFO] [stdout] 57 |                         ("message", e.to_string().into_pyobject(py)?.into_any()),
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<pyo3::Bound<'_, PyString>, Infallible>
[INFO] [stdout]   --> src/parser/errors.rs:57:37
[INFO] [stdout]    |
[INFO] [stdout] 57 |                         ("message", e.to_string().into_pyobject(py)?.into_any()),
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<std::result::Result<Infallible, Infallible>, pyo3::Bound<'_, PyInt>>
[INFO] [stdout]   --> src/parser/errors.rs:59:38
[INFO] [stdout]    |
[INFO] [stdout] 59 |                         ("raw_line", (line + 1).into_pyobject(py)?.into_any()),
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<pyo3::Bound<'_, PyInt>, Infallible>
[INFO] [stdout]   --> src/parser/errors.rs:59:38
[INFO] [stdout]    |
[INFO] [stdout] 59 |                         ("raw_line", (line + 1).into_pyobject(py)?.into_any()),
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<std::result::Result<Infallible, Infallible>, pyo3::Bound<'_, PyInt>>
[INFO] [stdout]   --> src/parser/errors.rs:60:40
[INFO] [stdout]    |
[INFO] [stdout] 60 |                         ("raw_column", col.into_pyobject(py)?.into_any()),
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<pyo3::Bound<'_, PyInt>, Infallible>
[INFO] [stdout]   --> src/parser/errors.rs:60:40
[INFO] [stdout]    |
[INFO] [stdout] 60 |                         ("raw_column", col.into_pyobject(py)?.into_any()),
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/parser/numbers.rs:43:33
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub(crate) fn parse_number(raw: &str) -> Expression {
[INFO] [stdout]    |                                 ^^^^     ^^^^^^^^^^
[INFO] [stdout]    |                                 |        |
[INFO] [stdout]    |                                 |        the same lifetime is hidden here
[INFO] [stdout]    |                                 |        the same lifetime is hidden here
[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] 43 | pub(crate) fn parse_number(raw: &str) -> Expression<'_> {
[INFO] [stdout]    |                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libcst` (lib) due to 6 previous errors; 8 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: field `string_start` is never read
[INFO] [stdout]   --> src/tokenizer/core/string_types.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 76 | pub struct FTStringNode {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 80 |     pub string_start: Option<TextPositionSnapshot>,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FTStringNode` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `lpar` and `rpar` are never used
[INFO] [stdout]   --> src/nodes/traits.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub trait ParenthesizedDeflatedNode<'r, 'a> {
[INFO] [stdout]    |           ------------------------- methods in this trait
[INFO] [stdout] 57 |     fn lpar(&self) -> &Vec<DeflatedLeftParen<'r, 'a>>;
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 58 |     fn rpar(&self) -> &Vec<DeflatedRightParen<'r, 'a>>;
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:23:23
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn tokenize(text: &str) -> Result<Vec<Token>> {
[INFO] [stdout]    |                       ^^^^     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                       |        |          |
[INFO] [stdout]    |                       |        |          the same lifetime is hidden here
[INFO] [stdout]    |                       |        the same lifetime is hidden here
[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] 23 | pub fn tokenize(text: &str) -> Result<'_, Vec<Token<'_>>> {
[INFO] [stdout]    |                                       +++          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:61:30
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub fn parse_statement(text: &str) -> Result<Statement> {
[INFO] [stdout]    |                              ^^^^     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                              |        |      |
[INFO] [stdout]    |                              |        |      the same lifetime is hidden here
[INFO] [stdout]    |                              |        the same lifetime is hidden here
[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] 61 | pub fn parse_statement(text: &str) -> Result<'_, Statement<'_>> {
[INFO] [stdout]    |                                              +++          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:70:31
[INFO] [stdout]    |
[INFO] [stdout] 70 | pub fn parse_expression(text: &str) -> Result<Expression> {
[INFO] [stdout]    |                               ^^^^     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                               |        |      |
[INFO] [stdout]    |                               |        |      the same lifetime is hidden here
[INFO] [stdout]    |                               |        the same lifetime is hidden here
[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] 70 | pub fn parse_expression(text: &str) -> Result<'_, Expression<'_>> {
[INFO] [stdout]    |                                               +++           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tokenizer/whitespace_parser.rs:461:38
[INFO] [stdout]     |
[INFO] [stdout] 461 |     fn _parse_simple_whitespace(src: &str) -> Result<SimpleWhitespace> {
[INFO] [stdout]     |                                      ^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                      |        |      |
[INFO] [stdout]     |                                      |        |      the same lifetime is hidden here
[INFO] [stdout]     |                                      |        the same lifetime is hidden here
[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] 461 |     fn _parse_simple_whitespace(src: &str) -> Result<'_, SimpleWhitespace<'_>> {
[INFO] [stdout]     |                                                      +++                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tokenizer/whitespace_parser.rs:502:28
[INFO] [stdout]     |
[INFO] [stdout] 502 |     fn _parse_comment(src: &str) -> Result<Option<Comment>> {
[INFO] [stdout]     |                            ^^^^     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                            |        |             |
[INFO] [stdout]     |                            |        |             the same lifetime is hidden here
[INFO] [stdout]     |                            |        the same lifetime is hidden here
[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] 502 |     fn _parse_comment(src: &str) -> Result<'_, Option<Comment<'_>>> {
[INFO] [stdout]     |                                            +++               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<std::result::Result<Infallible, Infallible>, pyo3::Bound<'_, PyString>>
[INFO] [stdout]   --> src/parser/errors.rs:57:37
[INFO] [stdout]    |
[INFO] [stdout] 57 |                         ("message", e.to_string().into_pyobject(py)?.into_any()),
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<pyo3::Bound<'_, PyString>, Infallible>
[INFO] [stdout]   --> src/parser/errors.rs:57:37
[INFO] [stdout]    |
[INFO] [stdout] 57 |                         ("message", e.to_string().into_pyobject(py)?.into_any()),
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<std::result::Result<Infallible, Infallible>, pyo3::Bound<'_, PyInt>>
[INFO] [stdout]   --> src/parser/errors.rs:59:38
[INFO] [stdout]    |
[INFO] [stdout] 59 |                         ("raw_line", (line + 1).into_pyobject(py)?.into_any()),
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<pyo3::Bound<'_, PyInt>, Infallible>
[INFO] [stdout]   --> src/parser/errors.rs:59:38
[INFO] [stdout]    |
[INFO] [stdout] 59 |                         ("raw_line", (line + 1).into_pyobject(py)?.into_any()),
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<std::result::Result<Infallible, Infallible>, pyo3::Bound<'_, PyInt>>
[INFO] [stdout]   --> src/parser/errors.rs:60:40
[INFO] [stdout]    |
[INFO] [stdout] 60 |                         ("raw_column", col.into_pyobject(py)?.into_any()),
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<pyo3::Bound<'_, PyInt>, Infallible>
[INFO] [stdout]   --> src/parser/errors.rs:60:40
[INFO] [stdout]    |
[INFO] [stdout] 60 |                         ("raw_column", col.into_pyobject(py)?.into_any()),
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/parser/numbers.rs:43:33
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub(crate) fn parse_number(raw: &str) -> Expression {
[INFO] [stdout]    |                                 ^^^^     ^^^^^^^^^^
[INFO] [stdout]    |                                 |        |
[INFO] [stdout]    |                                 |        the same lifetime is hidden here
[INFO] [stdout]    |                                 |        the same lifetime is hidden here
[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] 43 | pub(crate) fn parse_number(raw: &str) -> Expression<'_> {
[INFO] [stdout]    |                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]    --> src/lib.rs:202:32
[INFO] [stdout]     |
[INFO] [stdout] 202 |             "Failed to parse t'{{hello}}'"
[INFO] [stdout]     |                                ^^     ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 202 |             "{}", "Failed to parse t'{{hello}}'"
[INFO] [stdout]     |             +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]    --> src/lib.rs:206:32
[INFO] [stdout]     |
[INFO] [stdout] 206 |             "Failed to parse t'{{hello:r}}'"
[INFO] [stdout]     |                                ^^       ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 206 |             "{}", "Failed to parse t'{{hello:r}}'"
[INFO] [stdout]     |             +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains braces
[INFO] [stdout]    --> src/lib.rs:210:40
[INFO] [stdout]     |
[INFO] [stdout] 210 |             "Failed to parse t'line1\\n{{hello:r}}\\nline2'"
[INFO] [stdout]     |                                        ^^       ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this message is not used as a format string, but will be in Rust 2021
[INFO] [stdout] help: add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 210 |             "{}", "Failed to parse t'line1\\n{{hello:r}}\\nline2'"
[INFO] [stdout]     |             +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libcst` (lib test) due to 6 previous errors; 13 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "2c75ba11bd7ac1700431bb780573dabb2a1f8f44f977e3232599e3c9f95b5aeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c75ba11bd7ac1700431bb780573dabb2a1f8f44f977e3232599e3c9f95b5aeb", kill_on_drop: false }`
[INFO] [stdout] 2c75ba11bd7ac1700431bb780573dabb2a1f8f44f977e3232599e3c9f95b5aeb
