[INFO] fetching crate mmb-parser 0.7.0...
[INFO] testing mmb-parser-0.7.0 against master#1f7f8ea0721a3b1eb73e6c6d25cccb371434b320 for pr-154065-1
[INFO] extracting crate mmb-parser 0.7.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate mmb-parser 0.7.0
[INFO] finished tweaking crates.io crate mmb-parser 0.7.0
[INFO] tweaked toml for crates.io crate mmb-parser 0.7.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mmb-parser 0.7.0 on toolchain 1f7f8ea0721a3b1eb73e6c6d25cccb371434b320
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "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" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] [stderr]       Adding nom v5.1.3 (available: v8.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mmb-types v0.3.1
[INFO] [stderr]   Downloaded nom v5.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8c9e164ab1131da0e9e5bbe0c61a7abef38029efb170d0ae26a94d1c2f2baf9b
[INFO] running `Command { std: "docker" "start" "-a" "8c9e164ab1131da0e9e5bbe0c61a7abef38029efb170d0ae26a94d1c2f2baf9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c9e164ab1131da0e9e5bbe0c61a7abef38029efb170d0ae26a94d1c2f2baf9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c9e164ab1131da0e9e5bbe0c61a7abef38029efb170d0ae26a94d1c2f2baf9b", kill_on_drop: false }`
[INFO] [stdout] 8c9e164ab1131da0e9e5bbe0c61a7abef38029efb170d0ae26a94d1c2f2baf9b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a4d5f864bbde011f38ab17986eedaa064dbdf147dd01a9b703732fbd6bb5a6a6
[INFO] running `Command { std: "docker" "start" "-a" "a4d5f864bbde011f38ab17986eedaa064dbdf147dd01a9b703732fbd6bb5a6a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling nom v5.1.3
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling mmb-types v0.3.1
[INFO] [stderr]    Compiling mmb-parser v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `num_entries` is never read
[INFO] [stdout]   --> src/index.rs:17:16
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct Index<'a> {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub(crate) num_entries: u64,
[INFO] [stdout]    |                ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Index` has a derived impl for the trait `Debug`, 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: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:77:18
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn index(&self) -> Option<&index::Index> {
[INFO] [stdout]    |                  ^^^^^            ^^^^^^^^^^^^^
[INFO] [stdout]    |                  |                ||
[INFO] [stdout]    |                  |                |the same lifetime is hidden here
[INFO] [stdout]    |                  |                the same lifetime is elided 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] 77 |     pub fn index(&self) -> Option<&index::Index<'_>> {
[INFO] [stdout]    |                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 82 |         &self,
[INFO] [stdout]    |         ^^^^^ the lifetime is elided here
[INFO] [stdout] 83 |         visitor: &mut V,
[INFO] [stdout] 84 |     ) -> Result<(), nom::Err<error::ParseError>> {
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^ 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] 84 |     ) -> Result<(), nom::Err<error::ParseError<'_>>> {
[INFO] [stdout]    |                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/parser.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn parse(input: &[u8]) -> IResult<Mmb> {
[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] 14 | pub fn parse(input: &[u8]) -> IResult<'_, Mmb<'_>> {
[INFO] [stdout]    |                                       +++    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/parser.rs:326:22
[INFO] [stdout]     |
[INFO] [stdout] 326 | fn parse_skip(input: &[u8]) -> IResult<u32> {
[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] 326 | fn parse_skip(input: &[u8]) -> IResult<'_, u32> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/parser.rs:353:44
[INFO] [stdout]     |
[INFO] [stdout] 353 | pub fn parse_opcode<T: TryFrom<u8>>(input: &[u8]) -> IResult<Command<T>> {
[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] 353 | pub fn parse_opcode<T: TryFrom<u8>>(input: &[u8]) -> IResult<'_, Command<T>> {
[INFO] [stdout]     |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/parser.rs:421:22
[INFO] [stdout]     |
[INFO] [stdout] 421 | fn take_magic(input: &[u8]) -> IResult<()> {
[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] 421 | fn take_magic(input: &[u8]) -> IResult<'_, ()> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/parser.rs:438:34
[INFO] [stdout]     |
[INFO] [stdout] 438 | pub fn parse_unify_opcode(input: &[u8]) -> IResult<Command<Unify>> {
[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] 438 | pub fn parse_unify_opcode(input: &[u8]) -> IResult<'_, Command<Unify>> {
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.89s
[INFO] running `Command { std: "docker" "inspect" "a4d5f864bbde011f38ab17986eedaa064dbdf147dd01a9b703732fbd6bb5a6a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4d5f864bbde011f38ab17986eedaa064dbdf147dd01a9b703732fbd6bb5a6a6", kill_on_drop: false }`
[INFO] [stdout] a4d5f864bbde011f38ab17986eedaa064dbdf147dd01a9b703732fbd6bb5a6a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2efc783815f759ef2f401c0069c1a092130a9c0f13afa599a788430c546bda5b
[INFO] running `Command { std: "docker" "start" "-a" "2efc783815f759ef2f401c0069c1a092130a9c0f13afa599a788430c546bda5b", kill_on_drop: false }`
[INFO] [stdout] warning: field `num_entries` is never read
[INFO] [stdout]   --> src/index.rs:17:16
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct Index<'a> {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub(crate) num_entries: u64,
[INFO] [stdout]    |                ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Index` has a derived impl for the trait `Debug`, 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: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:77:18
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn index(&self) -> Option<&index::Index> {
[INFO] [stdout]    |                  ^^^^^            ^^^^^^^^^^^^^
[INFO] [stdout]    |                  |                ||
[INFO] [stdout]    |                  |                |the same lifetime is hidden here
[INFO] [stdout]    |                  |                the same lifetime is elided 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] 77 |     pub fn index(&self) -> Option<&index::Index<'_>> {
[INFO] [stdout]    |                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 82 |         &self,
[INFO] [stdout]    |         ^^^^^ the lifetime is elided here
[INFO] [stdout] 83 |         visitor: &mut V,
[INFO] [stdout] 84 |     ) -> Result<(), nom::Err<error::ParseError>> {
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^ 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] 84 |     ) -> Result<(), nom::Err<error::ParseError<'_>>> {
[INFO] [stdout]    |                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/parser.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn parse(input: &[u8]) -> IResult<Mmb> {
[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] 14 | pub fn parse(input: &[u8]) -> IResult<'_, Mmb<'_>> {
[INFO] [stdout]    |                                       +++    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/parser.rs:326:22
[INFO] [stdout]     |
[INFO] [stdout] 326 | fn parse_skip(input: &[u8]) -> IResult<u32> {
[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] 326 | fn parse_skip(input: &[u8]) -> IResult<'_, u32> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/parser.rs:353:44
[INFO] [stdout]     |
[INFO] [stdout] 353 | pub fn parse_opcode<T: TryFrom<u8>>(input: &[u8]) -> IResult<Command<T>> {
[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] 353 | pub fn parse_opcode<T: TryFrom<u8>>(input: &[u8]) -> IResult<'_, Command<T>> {
[INFO] [stdout]     |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/parser.rs:421:22
[INFO] [stdout]     |
[INFO] [stdout] 421 | fn take_magic(input: &[u8]) -> IResult<()> {
[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] 421 | fn take_magic(input: &[u8]) -> IResult<'_, ()> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/parser.rs:438:34
[INFO] [stdout]     |
[INFO] [stdout] 438 | pub fn parse_unify_opcode(input: &[u8]) -> IResult<Command<Unify>> {
[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] 438 | pub fn parse_unify_opcode(input: &[u8]) -> IResult<'_, Command<Unify>> {
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling mmb-parser v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `num_entries` is never read
[INFO] [stdout]   --> src/index.rs:17:16
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct Index<'a> {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub(crate) num_entries: u64,
[INFO] [stdout]    |                ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Index` has a derived impl for the trait `Debug`, 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: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:77:18
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn index(&self) -> Option<&index::Index> {
[INFO] [stdout]    |                  ^^^^^            ^^^^^^^^^^^^^
[INFO] [stdout]    |                  |                ||
[INFO] [stdout]    |                  |                |the same lifetime is hidden here
[INFO] [stdout]    |                  |                the same lifetime is elided 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] 77 |     pub fn index(&self) -> Option<&index::Index<'_>> {
[INFO] [stdout]    |                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 82 |         &self,
[INFO] [stdout]    |         ^^^^^ the lifetime is elided here
[INFO] [stdout] 83 |         visitor: &mut V,
[INFO] [stdout] 84 |     ) -> Result<(), nom::Err<error::ParseError>> {
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^ 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] 84 |     ) -> Result<(), nom::Err<error::ParseError<'_>>> {
[INFO] [stdout]    |                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/parser.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn parse(input: &[u8]) -> IResult<Mmb> {
[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] 14 | pub fn parse(input: &[u8]) -> IResult<'_, Mmb<'_>> {
[INFO] [stdout]    |                                       +++    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/parser.rs:326:22
[INFO] [stdout]     |
[INFO] [stdout] 326 | fn parse_skip(input: &[u8]) -> IResult<u32> {
[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] 326 | fn parse_skip(input: &[u8]) -> IResult<'_, u32> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/parser.rs:353:44
[INFO] [stdout]     |
[INFO] [stdout] 353 | pub fn parse_opcode<T: TryFrom<u8>>(input: &[u8]) -> IResult<Command<T>> {
[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] 353 | pub fn parse_opcode<T: TryFrom<u8>>(input: &[u8]) -> IResult<'_, Command<T>> {
[INFO] [stdout]     |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/parser.rs:421:22
[INFO] [stdout]     |
[INFO] [stdout] 421 | fn take_magic(input: &[u8]) -> IResult<()> {
[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] 421 | fn take_magic(input: &[u8]) -> IResult<'_, ()> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/parser.rs:438:34
[INFO] [stdout]     |
[INFO] [stdout] 438 | pub fn parse_unify_opcode(input: &[u8]) -> IResult<Command<Unify>> {
[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] 438 | pub fn parse_unify_opcode(input: &[u8]) -> IResult<'_, Command<Unify>> {
[INFO] [stdout]     |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "2efc783815f759ef2f401c0069c1a092130a9c0f13afa599a788430c546bda5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2efc783815f759ef2f401c0069c1a092130a9c0f13afa599a788430c546bda5b", kill_on_drop: false }`
[INFO] [stdout] 2efc783815f759ef2f401c0069c1a092130a9c0f13afa599a788430c546bda5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6dc4ed0a0402345770123d4dcade638e812ba5652c2b7bd7e632ee5e963e6b25
[INFO] running `Command { std: "docker" "start" "-a" "6dc4ed0a0402345770123d4dcade638e812ba5652c2b7bd7e632ee5e963e6b25", kill_on_drop: false }`
[INFO] [stderr] warning: field `num_entries` is never read
[INFO] [stderr]   --> src/index.rs:17:16
[INFO] [stderr]    |
[INFO] [stderr]  9 | pub struct Index<'a> {
[INFO] [stderr]    |            ----- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 17 |     pub(crate) num_entries: u64,
[INFO] [stderr]    |                ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Index` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/lib.rs:77:18
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub fn index(&self) -> Option<&index::Index> {
[INFO] [stderr]    |                  ^^^^^            ^^^^^^^^^^^^^
[INFO] [stderr]    |                  |                ||
[INFO] [stderr]    |                  |                |the same lifetime is hidden here
[INFO] [stderr]    |                  |                the same lifetime is elided here
[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] 77 |     pub fn index(&self) -> Option<&index::Index<'_>> {
[INFO] [stderr]    |                                                ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/lib.rs:82:9
[INFO] [stderr]    |
[INFO] [stderr] 82 |         &self,
[INFO] [stderr]    |         ^^^^^ the lifetime is elided here
[INFO] [stderr] 83 |         visitor: &mut V,
[INFO] [stderr] 84 |     ) -> Result<(), nom::Err<error::ParseError>> {
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^ 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] 84 |     ) -> Result<(), nom::Err<error::ParseError<'_>>> {
[INFO] [stderr]    |                                               ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/parser.rs:14:21
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn parse(input: &[u8]) -> IResult<Mmb> {
[INFO] [stderr]    |                     ^^^^^     ^^^^^^^^^^^^
[INFO] [stderr]    |                     |         |       |
[INFO] [stderr]    |                     |         |       the same lifetime is hidden here
[INFO] [stderr]    |                     |         the same lifetime is hidden here
[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] 14 | pub fn parse(input: &[u8]) -> IResult<'_, Mmb<'_>> {
[INFO] [stderr]    |                                       +++    ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/parser.rs:326:22
[INFO] [stderr]     |
[INFO] [stderr] 326 | fn parse_skip(input: &[u8]) -> IResult<u32> {
[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] 326 | fn parse_skip(input: &[u8]) -> IResult<'_, u32> {
[INFO] [stderr]     |                                        +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/parser.rs:353:44
[INFO] [stderr]     |
[INFO] [stderr] 353 | pub fn parse_opcode<T: TryFrom<u8>>(input: &[u8]) -> IResult<Command<T>> {
[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] 353 | pub fn parse_opcode<T: TryFrom<u8>>(input: &[u8]) -> IResult<'_, Command<T>> {
[INFO] [stderr]     |                                                              +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/parser.rs:421:22
[INFO] [stderr]     |
[INFO] [stderr] 421 | fn take_magic(input: &[u8]) -> IResult<()> {
[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] 421 | fn take_magic(input: &[u8]) -> IResult<'_, ()> {
[INFO] [stderr]     |                                        +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/parser.rs:438:34
[INFO] [stderr]     |
[INFO] [stderr] 438 | pub fn parse_unify_opcode(input: &[u8]) -> IResult<Command<Unify>> {
[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] 438 | pub fn parse_unify_opcode(input: &[u8]) -> IResult<'_, Command<Unify>> {
[INFO] [stderr]     |                                                    +++
[INFO] [stderr] 
[INFO] [stderr] warning: `mmb-parser` (lib) generated 8 warnings (run `cargo fix --lib -p mmb-parser` to apply 7 suggestions)
[INFO] [stderr] warning: `mmb-parser` (lib test) generated 8 warnings (8 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mmb_parser-b8bc84218d85011e)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mmb_parser
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6dc4ed0a0402345770123d4dcade638e812ba5652c2b7bd7e632ee5e963e6b25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6dc4ed0a0402345770123d4dcade638e812ba5652c2b7bd7e632ee5e963e6b25", kill_on_drop: false }`
[INFO] [stdout] 6dc4ed0a0402345770123d4dcade638e812ba5652c2b7bd7e632ee5e963e6b25
