[INFO] cloning repository https://github.com/FMurray/toy-problems
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FMurray/toy-problems" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFMurray%2Ftoy-problems", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFMurray%2Ftoy-problems'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0f6f7ecd4e1d14466e4cd9ebcf7c4dcd17adb8a0
[INFO] checking FMurray/toy-problems against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFMurray%2Ftoy-problems" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/FMurray/toy-problems
[INFO] finished tweaking git repo https://github.com/FMurray/toy-problems
[INFO] tweaked toml for git repo https://github.com/FMurray/toy-problems written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/FMurray/toy-problems on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/FMurray/toy-problems 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pyo3-macros-backend v0.19.2
[INFO] [stderr]   Downloaded indoc v1.0.9
[INFO] [stderr]   Downloaded pyo3-macros v0.19.2
[INFO] [stderr]   Downloaded pyo3-build-config v0.19.2
[INFO] [stderr]   Downloaded toml v0.7.6
[INFO] [stderr]   Downloaded xattr v1.0.1
[INFO] [stderr]   Downloaded errno v0.3.2
[INFO] [stderr]   Downloaded target-lexicon v0.12.11
[INFO] [stderr]   Downloaded pyo3-ffi v0.19.2
[INFO] [stderr]   Downloaded argh_derive v0.1.12
[INFO] [stderr]   Downloaded argh v0.1.12
[INFO] [stderr]   Downloaded arrow-schema v47.0.0
[INFO] [stderr]   Downloaded arrow-string v47.0.0
[INFO] [stderr]   Downloaded arrow-arith v47.0.0
[INFO] [stderr]   Downloaded arrow-data v47.0.0
[INFO] [stderr]   Downloaded arrow-row v47.0.0
[INFO] [stderr]   Downloaded arrow-select v47.0.0
[INFO] [stderr]   Downloaded arrow-ord v47.0.0
[INFO] [stderr]   Downloaded arrow-cast v47.0.0
[INFO] [stderr]   Downloaded tar v0.4.40
[INFO] [stderr]   Downloaded arrow-buffer v47.0.0
[INFO] [stderr]   Downloaded arrow v47.0.0
[INFO] [stderr]   Downloaded half v2.3.1
[INFO] [stderr]   Downloaded portable-atomic v1.4.2
[INFO] [stderr]   Downloaded winnow v0.5.10
[INFO] [stderr]   Downloaded arrow-array v47.0.0
[INFO] [stderr]   Downloaded indicatif v0.17.6
[INFO] [stderr]   Downloaded argh_shared v0.1.12
[INFO] [stderr]   Downloaded tempfile v3.7.1
[INFO] [stderr]   Downloaded rustix v0.38.8
[INFO] [stderr]   Downloaded pyo3 v0.19.2
[INFO] [stderr]   Downloaded duckdb v0.9.0
[INFO] [stderr]   Downloaded libduckdb-sys v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 37069874f9a77175b3729f54845bfe7229cc42e8b57ec59fd820e6b1e9664c70
[INFO] running `Command { std: "docker" "start" "-a" "37069874f9a77175b3729f54845bfe7229cc42e8b57ec59fd820e6b1e9664c70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37069874f9a77175b3729f54845bfe7229cc42e8b57ec59fd820e6b1e9664c70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37069874f9a77175b3729f54845bfe7229cc42e8b57ec59fd820e6b1e9664c70", kill_on_drop: false }`
[INFO] [stdout] 37069874f9a77175b3729f54845bfe7229cc42e8b57ec59fd820e6b1e9664c70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4508362f7b9ff27de20a5edd93f0c04e10bef4bdabf7611ce3cdbdeb232bd0d5
[INFO] running `Command { std: "docker" "start" "-a" "4508362f7b9ff27de20a5edd93f0c04e10bef4bdabf7611ce3cdbdeb232bd0d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling serde v1.0.183
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling serde_derive v1.0.183
[INFO] [stderr]    Compiling ahash v0.8.3
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling target-lexicon v0.12.11
[INFO] [stderr]     Checking arrow-schema v47.0.0
[INFO] [stderr]     Checking lexical-util v0.8.5
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde_json v1.0.104
[INFO] [stderr]     Checking hashbrown v0.14.0
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling miniz_oxide v0.7.1
[INFO] [stderr]     Checking lexical-parse-integer v0.8.6
[INFO] [stderr]    Compiling pyo3-build-config v0.19.2
[INFO] [stderr]     Checking lexical-write-integer v0.8.5
[INFO] [stderr]     Checking aho-corasick v1.1.1
[INFO] [stderr]     Checking num-complex v0.4.4
[INFO] [stderr]     Checking half v2.3.1
[INFO] [stderr]     Checking chrono v0.4.31
[INFO] [stderr]    Compiling xattr v1.0.1
[INFO] [stderr]    Compiling filetime v0.2.22
[INFO] [stderr]    Compiling syn v2.0.28
[INFO] [stderr]     Checking regex-syntax v0.7.5
[INFO] [stderr]     Checking num v0.4.1
[INFO] [stderr]     Checking arrow-buffer v47.0.0
[INFO] [stderr]    Compiling tar v0.4.40
[INFO] [stderr]    Compiling pyo3-ffi v0.19.2
[INFO] [stderr]     Checking arrow-data v47.0.0
[INFO] [stderr]    Compiling flate2 v1.0.27
[INFO] [stderr]     Checking lexical-write-float v0.8.5
[INFO] [stderr]     Checking lexical-parse-float v0.8.5
[INFO] [stderr]     Checking arrow-array v47.0.0
[INFO] [stderr]    Compiling rustix v0.38.8
[INFO] [stderr]    Compiling rust_decimal v1.32.0
[INFO] [stderr]     Checking lexical-core v0.8.5
[INFO] [stderr]    Compiling portable-atomic v1.4.2
[INFO] [stderr]     Checking linux-raw-sys v0.4.5
[INFO] [stderr]     Checking regex-automata v0.3.7
[INFO] [stderr]     Checking indexmap v2.0.0
[INFO] [stderr]    Compiling pyo3-macros-backend v0.19.2
[INFO] [stderr]     Checking console v0.15.7
[INFO] [stderr]    Compiling libduckdb-sys v0.9.0
[INFO] [stderr]     Checking crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling argh_shared v0.1.12
[INFO] [stderr]     Checking arrow-select v47.0.0
[INFO] [stderr]     Checking arrow-arith v47.0.0
[INFO] [stderr]    Compiling strum_macros v0.25.2
[INFO] [stderr]     Checking arrow-row v47.0.0
[INFO] [stderr]     Checking arrow-ord v47.0.0
[INFO] [stderr]     Checking toml_datetime v0.6.3
[INFO] [stderr]     Checking serde_spanned v0.6.3
[INFO] [stderr]    Compiling pyo3 v0.19.2
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking winnow v0.5.10
[INFO] [stderr]     Checking fastrand v2.0.0
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]     Checking inotify v0.9.6
[INFO] [stderr]     Checking tempfile v3.7.1
[INFO] [stderr]     Checking walkdir v2.3.3
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]    Compiling strum_macros v0.24.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[INFO] [stderr]    Compiling argh_derive v0.1.12
[INFO] [stderr]     Checking regex v1.9.4
[INFO] [stderr]     Checking strum v0.25.0
[INFO] [stderr]     Checking arrow-string v47.0.0
[INFO] [stderr]     Checking hashlink v0.8.4
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]    Compiling indoc v1.0.9
[INFO] [stderr]     Checking shell-words v1.1.0
[INFO] [stderr]     Checking dialoguer v0.10.4
[INFO] [stderr]     Checking notify v6.0.1
[INFO] [stderr]     Checking toml_edit v0.19.14
[INFO] [stderr]     Checking indicatif v0.17.6
[INFO] [stderr]    Compiling pyo3-macros v0.19.2
[INFO] [stderr]     Checking comfy-table v7.0.1
[INFO] [stderr]     Checking argh v0.1.12
[INFO] [stderr]     Checking arrow-cast v47.0.0
[INFO] [stderr]     Checking arrow v47.0.0
[INFO] [stderr]     Checking toml v0.7.6
[INFO] [stderr]     Checking duckdb v0.9.0
[INFO] [stderr]     Checking toy-problems v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `choose_pivot_idx` is never used
[INFO] [stdout]   --> src/lib.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn choose_pivot_idx(a: &Vec<i32>) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `choose_pivot_idx` is never used
[INFO] [stdout]   --> src/lib.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn choose_pivot_idx(a: &Vec<i32>) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `params`
[INFO] [stdout]  --> src/drill.rs:1:14
[INFO] [stdout]   |
[INFO] [stdout] 1 | use duckdb::{params, Connection, Result};
[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: `duckdb::arrow::record_batch::RecordBatch`
[INFO] [stdout]  --> src/drill.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use duckdb::arrow::record_batch::RecordBatch;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `duckdb::arrow::util::pretty::print_batches`
[INFO] [stdout]  --> src/drill.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use duckdb::arrow::util::pretty::print_batches;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `params`
[INFO] [stdout]  --> src/drill.rs:1:14
[INFO] [stdout]   |
[INFO] [stdout] 1 | use duckdb::{params, Connection, Result};
[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: `duckdb::arrow::record_batch::RecordBatch`
[INFO] [stdout]  --> src/drill.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use duckdb::arrow::record_batch::RecordBatch;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `duckdb::arrow::util::pretty::print_batches`
[INFO] [stdout]  --> src/drill.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use duckdb::arrow::util::pretty::print_batches;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `subargs`
[INFO] [stdout]   --> src/main.rs:71:27
[INFO] [stdout]    |
[INFO] [stdout] 71 |         Subcommands::List(subargs) => {
[INFO] [stdout]    |                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subargs`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `qid`, `title`, `title_slug`, `topic_tags`, and `category_slug` are never read
[INFO] [stdout]   --> src/drill.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub struct Question {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout]  8 |     qid: String,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]  9 |     title: String,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 10 |     title_slug: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 11 |     topic_tags: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 12 |     category_slug: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Question` 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: constant `LANGUAGES` is never used
[INFO] [stdout]  --> src/problems.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const LANGUAGES: &[&str] = &["rust", "python"];
[INFO] [stdout]   |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_path` is never used
[INFO] [stdout]    --> src/problems.rs:121:12
[INFO] [stdout]     |
[INFO] [stdout]  85 | impl Problem {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 121 |     pub fn get_path(&self) -> &PathBuf {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `RunMode` is never used
[INFO] [stdout]  --> src/run.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | enum RunMode {
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/problems.rs:86:20
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn compile(&self) -> Result<CompiledProblem, ProblemOutput> {
[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] 86 |     pub fn compile(&self) -> Result<CompiledProblem<'_>, ProblemOutput> {
[INFO] [stdout]    |                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `subargs`
[INFO] [stdout]   --> src/main.rs:71:27
[INFO] [stdout]    |
[INFO] [stdout] 71 |         Subcommands::List(subargs) => {
[INFO] [stdout]    |                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subargs`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `qid`, `title`, `title_slug`, `topic_tags`, and `category_slug` are never read
[INFO] [stdout]   --> src/drill.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub struct Question {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout]  8 |     qid: String,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]  9 |     title: String,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 10 |     title_slug: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 11 |     topic_tags: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 12 |     category_slug: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Question` 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: constant `LANGUAGES` is never used
[INFO] [stdout]  --> src/problems.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const LANGUAGES: &[&str] = &["rust", "python"];
[INFO] [stdout]   |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_path` is never used
[INFO] [stdout]    --> src/problems.rs:121:12
[INFO] [stdout]     |
[INFO] [stdout]  85 | impl Problem {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 121 |     pub fn get_path(&self) -> &PathBuf {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `RunMode` is never used
[INFO] [stdout]  --> src/run.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | enum RunMode {
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/problems.rs:86:20
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn compile(&self) -> Result<CompiledProblem, ProblemOutput> {
[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] 86 |     pub fn compile(&self) -> Result<CompiledProblem<'_>, ProblemOutput> {
[INFO] [stdout]    |                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 02s
[INFO] running `Command { std: "docker" "inspect" "4508362f7b9ff27de20a5edd93f0c04e10bef4bdabf7611ce3cdbdeb232bd0d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4508362f7b9ff27de20a5edd93f0c04e10bef4bdabf7611ce3cdbdeb232bd0d5", kill_on_drop: false }`
[INFO] [stdout] 4508362f7b9ff27de20a5edd93f0c04e10bef4bdabf7611ce3cdbdeb232bd0d5
