[INFO] fetching crate momba-explore 0.1.1...
[INFO] testing momba-explore-0.1.1 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate momba-explore 0.1.1 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate momba-explore 0.1.1
[INFO] finished tweaking crates.io crate momba-explore 0.1.1
[INFO] tweaked toml for crates.io crate momba-explore 0.1.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate momba-explore 0.1.1 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 34 packages to latest compatible versions
[INFO] [stderr]       Adding clock-zones v0.1.4 (available: v0.4.1)
[INFO] [stderr]       Adding indexmap v1.9.3 (available: v2.12.0)
[INFO] [stderr]       Adding itertools v0.9.0 (available: v0.14.0)
[INFO] [stderr]       Adding ordered-float v2.10.1 (available: v5.1.0)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clock-zones v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 08bcde16431c8235db750f9a4a58841ce417b6033a83f67acc1bf690f4c24727
[INFO] running `Command { std: "docker" "start" "-a" "08bcde16431c8235db750f9a4a58841ce417b6033a83f67acc1bf690f4c24727", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "08bcde16431c8235db750f9a4a58841ce417b6033a83f67acc1bf690f4c24727", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08bcde16431c8235db750f9a4a58841ce417b6033a83f67acc1bf690f4c24727", kill_on_drop: false }`
[INFO] [stdout] 08bcde16431c8235db750f9a4a58841ce417b6033a83f67acc1bf690f4c24727
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 02286899a676c4f6d82b7e6a1a41fe575630dd611b18e67214086756990d48df
[INFO] running `Command { std: "docker" "start" "-a" "02286899a676c4f6d82b7e6a1a41fe575630dd611b18e67214086756990d48df", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling ordered-float v2.10.1
[INFO] [stderr]    Compiling clock-zones v0.1.4
[INFO] [stderr]    Compiling momba-explore v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `time::TimeType`
[INFO] [stdout]  --> src/explore/external.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use time::TimeType;
[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: `crate::Explorer`
[INFO] [stdout]   --> src/time.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use crate::Explorer;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ActionLabelIndex` is never used
[INFO] [stdout]   --> src/explore/compiled.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub type ActionLabelIndex = 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: type alias `EdgeIndex` is never used
[INFO] [stdout]   --> src/explore/compiled.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub type EdgeIndex = usize;
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `DestinationIndex` is never used
[INFO] [stdout]   --> src/explore/compiled.rs:17:10
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub type DestinationIndex = usize;
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `reference` is never read
[INFO] [stdout]   --> src/explore/compiled.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct CompiledAutomaton<Z: time::TimeType> {
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] 28 |     pub reference: model::AutomatonReference,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `reference` is never read
[INFO] [stdout]   --> src/explore/compiled.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub struct CompiledLocation<Z: time::TimeType> {
[INFO] [stdout]    |            ---------------- field in this struct
[INFO] [stdout] 33 |     pub reference: model::LocationReference,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `reference` is never read
[INFO] [stdout]    --> src/explore/compiled.rs:229:9
[INFO] [stdout]     |
[INFO] [stdout] 227 | pub struct CompiledDestination<Z: time::TimeType> {
[INFO] [stdout]     |            ------------------- field in this struct
[INFO] [stdout] 228 |     pub automaton_index: usize,
[INFO] [stdout] 229 |     pub reference: model::DestinationReference,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `CompileBackend` is never used
[INFO] [stdout]    --> src/explore/evaluate.rs:114:11
[INFO] [stdout]     |
[INFO] [stdout] 114 | pub trait CompileBackend<C> {
[INFO] [stdout]     |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/explore/mod.rs:102:19
[INFO] [stdout]     |
[INFO] [stdout] 102 |     fn global_env(&self) -> GlobalEnvironment {
[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] 102 |     fn global_env(&self) -> GlobalEnvironment<'_> {
[INFO] [stdout]     |                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/explore/compiled.rs:251:14
[INFO] [stdout]     |
[INFO] [stdout] 248 |         &'c self,
[INFO] [stdout]     |          -- the lifetime is named here
[INFO] [stdout] 249 |         global_env: &evaluate::Environment<2>,
[INFO] [stdout] 250 |         enabled_edges: &Box<[Box<[Box<[&'c CompiledVisibleEdge<Z>]>]>]>,
[INFO] [stdout]     |                                         -- the lifetime is named here
[INFO] [stdout] 251 |     ) -> Vec<LinkEdge<Z>> {
[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: consistently use `'c`
[INFO] [stdout]     |
[INFO] [stdout] 251 |     ) -> Vec<LinkEdge<'c, Z>> {
[INFO] [stdout]     |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.85s
[INFO] running `Command { std: "docker" "inspect" "02286899a676c4f6d82b7e6a1a41fe575630dd611b18e67214086756990d48df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02286899a676c4f6d82b7e6a1a41fe575630dd611b18e67214086756990d48df", kill_on_drop: false }`
[INFO] [stdout] 02286899a676c4f6d82b7e6a1a41fe575630dd611b18e67214086756990d48df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e09c95a5d8077a04679e52eff212694e0634618078c58294c7be9bb642aa053
[INFO] running `Command { std: "docker" "start" "-a" "2e09c95a5d8077a04679e52eff212694e0634618078c58294c7be9bb642aa053", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `time::TimeType`
[INFO] [stdout]  --> src/explore/external.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use time::TimeType;
[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: `crate::Explorer`
[INFO] [stdout]   --> src/time.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use crate::Explorer;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ActionLabelIndex` is never used
[INFO] [stdout]   --> src/explore/compiled.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub type ActionLabelIndex = 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: type alias `EdgeIndex` is never used
[INFO] [stdout]   --> src/explore/compiled.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub type EdgeIndex = usize;
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `DestinationIndex` is never used
[INFO] [stdout]   --> src/explore/compiled.rs:17:10
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub type DestinationIndex = usize;
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `reference` is never read
[INFO] [stdout]   --> src/explore/compiled.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct CompiledAutomaton<Z: time::TimeType> {
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] 28 |     pub reference: model::AutomatonReference,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `reference` is never read
[INFO] [stdout]   --> src/explore/compiled.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub struct CompiledLocation<Z: time::TimeType> {
[INFO] [stdout]    |            ---------------- field in this struct
[INFO] [stdout] 33 |     pub reference: model::LocationReference,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `reference` is never read
[INFO] [stdout]    --> src/explore/compiled.rs:229:9
[INFO] [stdout]     |
[INFO] [stdout] 227 | pub struct CompiledDestination<Z: time::TimeType> {
[INFO] [stdout]     |            ------------------- field in this struct
[INFO] [stdout] 228 |     pub automaton_index: usize,
[INFO] [stdout] 229 |     pub reference: model::DestinationReference,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling momba-explore v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `CompileBackend` is never used
[INFO] [stdout]    --> src/explore/evaluate.rs:114:11
[INFO] [stdout]     |
[INFO] [stdout] 114 | pub trait CompileBackend<C> {
[INFO] [stdout]     |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/explore/mod.rs:102:19
[INFO] [stdout]     |
[INFO] [stdout] 102 |     fn global_env(&self) -> GlobalEnvironment {
[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] 102 |     fn global_env(&self) -> GlobalEnvironment<'_> {
[INFO] [stdout]     |                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/explore/compiled.rs:251:14
[INFO] [stdout]     |
[INFO] [stdout] 248 |         &'c self,
[INFO] [stdout]     |          -- the lifetime is named here
[INFO] [stdout] 249 |         global_env: &evaluate::Environment<2>,
[INFO] [stdout] 250 |         enabled_edges: &Box<[Box<[Box<[&'c CompiledVisibleEdge<Z>]>]>]>,
[INFO] [stdout]     |                                         -- the lifetime is named here
[INFO] [stdout] 251 |     ) -> Vec<LinkEdge<Z>> {
[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: consistently use `'c`
[INFO] [stdout]     |
[INFO] [stdout] 251 |     ) -> Vec<LinkEdge<'c, Z>> {
[INFO] [stdout]     |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `time::TimeType`
[INFO] [stdout]  --> src/explore/external.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use time::TimeType;
[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: `crate::Explorer`
[INFO] [stdout]   --> src/time.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use crate::Explorer;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ActionLabelIndex` is never used
[INFO] [stdout]   --> src/explore/compiled.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub type ActionLabelIndex = 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: type alias `EdgeIndex` is never used
[INFO] [stdout]   --> src/explore/compiled.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub type EdgeIndex = usize;
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `DestinationIndex` is never used
[INFO] [stdout]   --> src/explore/compiled.rs:17:10
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub type DestinationIndex = usize;
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `reference` is never read
[INFO] [stdout]   --> src/explore/compiled.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct CompiledAutomaton<Z: time::TimeType> {
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] 28 |     pub reference: model::AutomatonReference,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `reference` is never read
[INFO] [stdout]   --> src/explore/compiled.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub struct CompiledLocation<Z: time::TimeType> {
[INFO] [stdout]    |            ---------------- field in this struct
[INFO] [stdout] 33 |     pub reference: model::LocationReference,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `reference` is never read
[INFO] [stdout]    --> src/explore/compiled.rs:229:9
[INFO] [stdout]     |
[INFO] [stdout] 227 | pub struct CompiledDestination<Z: time::TimeType> {
[INFO] [stdout]     |            ------------------- field in this struct
[INFO] [stdout] 228 |     pub automaton_index: usize,
[INFO] [stdout] 229 |     pub reference: model::DestinationReference,
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `CompileBackend` is never used
[INFO] [stdout]    --> src/explore/evaluate.rs:114:11
[INFO] [stdout]     |
[INFO] [stdout] 114 | pub trait CompileBackend<C> {
[INFO] [stdout]     |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/explore/mod.rs:102:19
[INFO] [stdout]     |
[INFO] [stdout] 102 |     fn global_env(&self) -> GlobalEnvironment {
[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] 102 |     fn global_env(&self) -> GlobalEnvironment<'_> {
[INFO] [stdout]     |                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/explore/compiled.rs:251:14
[INFO] [stdout]     |
[INFO] [stdout] 248 |         &'c self,
[INFO] [stdout]     |          -- the lifetime is named here
[INFO] [stdout] 249 |         global_env: &evaluate::Environment<2>,
[INFO] [stdout] 250 |         enabled_edges: &Box<[Box<[Box<[&'c CompiledVisibleEdge<Z>]>]>]>,
[INFO] [stdout]     |                                         -- the lifetime is named here
[INFO] [stdout] 251 |     ) -> Vec<LinkEdge<Z>> {
[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: consistently use `'c`
[INFO] [stdout]     |
[INFO] [stdout] 251 |     ) -> Vec<LinkEdge<'c, Z>> {
[INFO] [stdout]     |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.16s
[INFO] running `Command { std: "docker" "inspect" "2e09c95a5d8077a04679e52eff212694e0634618078c58294c7be9bb642aa053", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e09c95a5d8077a04679e52eff212694e0634618078c58294c7be9bb642aa053", kill_on_drop: false }`
[INFO] [stdout] 2e09c95a5d8077a04679e52eff212694e0634618078c58294c7be9bb642aa053
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0c57331431e5249e2d7a4dd83650bbeb8285a07e36e9f086cee60da90c6b237c
[INFO] running `Command { std: "docker" "start" "-a" "0c57331431e5249e2d7a4dd83650bbeb8285a07e36e9f086cee60da90c6b237c", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `time::TimeType`
[INFO] [stderr]  --> src/explore/external.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use time::TimeType;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::Explorer`
[INFO] [stderr]   --> src/time.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use crate::Explorer;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `ActionLabelIndex` is never used
[INFO] [stderr]   --> src/explore/compiled.rs:11:10
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub type ActionLabelIndex = usize;
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `EdgeIndex` is never used
[INFO] [stderr]   --> src/explore/compiled.rs:15:10
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub type EdgeIndex = usize;
[INFO] [stderr]    |          ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `DestinationIndex` is never used
[INFO] [stderr]   --> src/explore/compiled.rs:17:10
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub type DestinationIndex = usize;
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `reference` is never read
[INFO] [stderr]   --> src/explore/compiled.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub struct CompiledAutomaton<Z: time::TimeType> {
[INFO] [stderr]    |            ----------------- field in this struct
[INFO] [stderr] 28 |     pub reference: model::AutomatonReference,
[INFO] [stderr]    |         ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `reference` is never read
[INFO] [stderr]   --> src/explore/compiled.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 32 | pub struct CompiledLocation<Z: time::TimeType> {
[INFO] [stderr]    |            ---------------- field in this struct
[INFO] [stderr] 33 |     pub reference: model::LocationReference,
[INFO] [stderr]    |         ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `reference` is never read
[INFO] [stderr]    --> src/explore/compiled.rs:229:9
[INFO] [stderr]     |
[INFO] [stderr] 227 | pub struct CompiledDestination<Z: time::TimeType> {
[INFO] [stderr]     |            ------------------- field in this struct
[INFO] [stderr] 228 |     pub automaton_index: usize,
[INFO] [stderr] 229 |     pub reference: model::DestinationReference,
[INFO] [stderr]     |         ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `CompileBackend` is never used
[INFO] [stderr]    --> src/explore/evaluate.rs:114:11
[INFO] [stderr]     |
[INFO] [stderr] 114 | pub trait CompileBackend<C> {
[INFO] [stderr]     |           ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/explore/mod.rs:102:19
[INFO] [stderr]     |
[INFO] [stderr] 102 |     fn global_env(&self) -> GlobalEnvironment {
[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] 102 |     fn global_env(&self) -> GlobalEnvironment<'_> {
[INFO] [stderr]     |                                              ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stderr]    --> src/explore/compiled.rs:251:14
[INFO] [stderr]     |
[INFO] [stderr] 248 |         &'c self,
[INFO] [stderr]     |          -- the lifetime is named here
[INFO] [stderr] 249 |         global_env: &evaluate::Environment<2>,
[INFO] [stderr] 250 |         enabled_edges: &Box<[Box<[Box<[&'c CompiledVisibleEdge<Z>]>]>]>,
[INFO] [stderr]     |                                         -- the lifetime is named here
[INFO] [stderr] 251 |     ) -> Vec<LinkEdge<Z>> {
[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: consistently use `'c`
[INFO] [stderr]     |
[INFO] [stderr] 251 |     ) -> Vec<LinkEdge<'c, Z>> {
[INFO] [stderr]     |                       +++
[INFO] [stderr] 
[INFO] [stderr] warning: `momba-explore` (lib) generated 11 warnings (run `cargo fix --lib -p momba-explore` to apply 4 suggestions)
[INFO] [stderr] warning: `momba-explore` (lib test) generated 11 warnings (11 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/momba_explore-b0b0c57c9b1c35ef)
[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 momba_explore
[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" "0c57331431e5249e2d7a4dd83650bbeb8285a07e36e9f086cee60da90c6b237c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c57331431e5249e2d7a4dd83650bbeb8285a07e36e9f086cee60da90c6b237c", kill_on_drop: false }`
[INFO] [stdout] 0c57331431e5249e2d7a4dd83650bbeb8285a07e36e9f086cee60da90c6b237c
