[INFO] fetching crate dot_parse 0.2.0...
[INFO] testing dot_parse-0.2.0 against 1.47.0 for beta-1.48-1
[INFO] extracting crate dot_parse 0.2.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate dot_parse 0.2.0 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dot_parse 0.2.0
[INFO] finished tweaking crates.io crate dot_parse 0.2.0
[INFO] tweaked toml for crates.io crate dot_parse 0.2.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate dot_parse 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c1bc267085f2c8bdf62d164a921568fd53bbe80c5bac339c51b698706deb6069
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c1bc267085f2c8bdf62d164a921568fd53bbe80c5bac339c51b698706deb6069", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1bc267085f2c8bdf62d164a921568fd53bbe80c5bac339c51b698706deb6069", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1bc267085f2c8bdf62d164a921568fd53bbe80c5bac339c51b698706deb6069", kill_on_drop: false }`
[INFO] [stdout] c1bc267085f2c8bdf62d164a921568fd53bbe80c5bac339c51b698706deb6069
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7772d53bd8a1fb2d6046e8461304b64130bd8eef6bee21a5a977142cef608b01
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7772d53bd8a1fb2d6046e8461304b64130bd8eef6bee21a5a977142cef608b01", kill_on_drop: false }`
[INFO] [stderr]    Compiling more-asserts v0.2.1
[INFO] [stderr]    Compiling dot v0.1.4
[INFO] [stderr]    Compiling dot_parse v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:350:61
[INFO] [stdout]     |
[INFO] [stdout] 350 |     fn parse_from(tokens: &[&'a str]) -> Result<NodeId<'a>, ((usize, &'a str))> {
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lib.rs:10:13
[INFO] [stdout]     |
[INFO] [stdout] 10  |             _ => false
[INFO] [stdout]     |             ^ unreachable pattern
[INFO] [stdout] ...
[INFO] [stdout] 235 |             (Some(a), Some(_b)) => matches!(a, _b) && id_match(self, other),
[INFO] [stdout]     |                                    ---------------
[INFO] [stdout]     |                                    |           |
[INFO] [stdout]     |                                    |           matches any value
[INFO] [stdout]     |                                    in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lib.rs:10:13
[INFO] [stdout]     |
[INFO] [stdout] 10  |             _ => false
[INFO] [stdout]     |             ^ unreachable pattern
[INFO] [stdout] ...
[INFO] [stdout] 488 |         matches!(self, other)
[INFO] [stdout]     |         ---------------------
[INFO] [stdout]     |         |              |
[INFO] [stdout]     |         |              matches any value
[INFO] [stdout]     |         in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lib.rs:604:21
[INFO] [stdout]     |
[INFO] [stdout] 603 |                     key_subgraph => parse_stmt_list_and_return(None, 2),
[INFO] [stdout]     |                     ------------ matches any value
[INFO] [stdout] 604 |                     _ => Err((0, "expecting subgraph")),
[INFO] [stdout]     |                     ^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lib.rs:609:21
[INFO] [stdout]     |
[INFO] [stdout] 609 |                     (_, Ok(_)) => Err((0, "expecting subgraph")),
[INFO] [stdout]     |                     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]    --> src/lib.rs:488:24
[INFO] [stdout]     |
[INFO] [stdout] 488 |         matches!(self, other)
[INFO] [stdout]     |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]    --> src/lib.rs:487:18
[INFO] [stdout]     |
[INFO] [stdout] 487 |     fn eq(&self, other: &Self) -> bool {
[INFO] [stdout]     |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key_subgraph`
[INFO] [stdout]    --> src/lib.rs:597:13
[INFO] [stdout]     |
[INFO] [stdout] 597 |         let key_subgraph: &str = "subgraph";
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_key_subgraph`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right_brace`
[INFO] [stdout]    --> src/lib.rs:598:13
[INFO] [stdout]     |
[INFO] [stdout] 598 |         let right_brace: &str = "}";
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_right_brace`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right_brace`
[INFO] [stdout]    --> src/lib.rs:600:42
[INFO] [stdout]     |
[INFO] [stdout] 600 |             (Some(idx_left_brace), Some(&right_brace)) => match idx_left_brace {
[INFO] [stdout]     |                                          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_right_brace`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key_subgraph`
[INFO] [stdout]    --> src/lib.rs:603:21
[INFO] [stdout]     |
[INFO] [stdout] 603 |                     key_subgraph => parse_stmt_list_and_return(None, 2),
[INFO] [stdout]     |                     ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_key_subgraph`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key_subgraph`
[INFO] [stdout]    --> src/lib.rs:608:22
[INFO] [stdout]     |
[INFO] [stdout] 608 |                     (key_subgraph, Ok(id)) => parse_stmt_list_and_return(Some(id), 3),
[INFO] [stdout]     |                      ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_key_subgraph`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]    --> src/lib.rs:421:8
[INFO] [stdout]     |
[INFO] [stdout] 421 |     fn get(&self, key: &str) -> Option<&IdWrapper<'a>> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `len`
[INFO] [stdout]    --> src/lib.rs:425:8
[INFO] [stdout]     |
[INFO] [stdout] 425 |     fn len(&self) -> usize {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `key`
[INFO] [stdout]    --> src/lib.rs:504:5
[INFO] [stdout]     |
[INFO] [stdout] 504 |     key: AttrStmtKey,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `attr_list`
[INFO] [stdout]    --> src/lib.rs:505:5
[INFO] [stdout]     |
[INFO] [stdout] 505 |     attr_list: AttrList<'a>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]    --> src/lib.rs:533:5
[INFO] [stdout]     |
[INFO] [stdout] 533 |     id: NodeId<'a>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `attr_list`
[INFO] [stdout]    --> src/lib.rs:534:5
[INFO] [stdout]     |
[INFO] [stdout] 534 |     attr_list: Option<AttrList<'a>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]    --> src/lib.rs:577:5
[INFO] [stdout]     |
[INFO] [stdout] 577 |     id: Option<dot::Id<'a>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `stmt_list`
[INFO] [stdout]    --> src/lib.rs:578:5
[INFO] [stdout]     |
[INFO] [stdout] 578 |     stmt_list: StmtList<'a>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `attr_list`
[INFO] [stdout]    --> src/lib.rs:718:5
[INFO] [stdout]     |
[INFO] [stdout] 718 |     attr_list: Option<AttrList<'a>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.84s
[INFO] running `Command { std: "docker" "inspect" "7772d53bd8a1fb2d6046e8461304b64130bd8eef6bee21a5a977142cef608b01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7772d53bd8a1fb2d6046e8461304b64130bd8eef6bee21a5a977142cef608b01", kill_on_drop: false }`
[INFO] [stdout] 7772d53bd8a1fb2d6046e8461304b64130bd8eef6bee21a5a977142cef608b01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2fd66757af6bbbd2915d50a2914e8d94205fa8a015a069b2afc83902b643e891
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2fd66757af6bbbd2915d50a2914e8d94205fa8a015a069b2afc83902b643e891", kill_on_drop: false }`
[INFO] [stderr]    Compiling dot_parse v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:350:61
[INFO] [stdout]     |
[INFO] [stdout] 350 |     fn parse_from(tokens: &[&'a str]) -> Result<NodeId<'a>, ((usize, &'a str))> {
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lib.rs:10:13
[INFO] [stdout]     |
[INFO] [stdout] 10  |             _ => false
[INFO] [stdout]     |             ^ unreachable pattern
[INFO] [stdout] ...
[INFO] [stdout] 235 |             (Some(a), Some(_b)) => matches!(a, _b) && id_match(self, other),
[INFO] [stdout]     |                                    ---------------
[INFO] [stdout]     |                                    |           |
[INFO] [stdout]     |                                    |           matches any value
[INFO] [stdout]     |                                    in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lib.rs:10:13
[INFO] [stdout]     |
[INFO] [stdout] 10  |             _ => false
[INFO] [stdout]     |             ^ unreachable pattern
[INFO] [stdout] ...
[INFO] [stdout] 488 |         matches!(self, other)
[INFO] [stdout]     |         ---------------------
[INFO] [stdout]     |         |              |
[INFO] [stdout]     |         |              matches any value
[INFO] [stdout]     |         in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lib.rs:604:21
[INFO] [stdout]     |
[INFO] [stdout] 603 |                     key_subgraph => parse_stmt_list_and_return(None, 2),
[INFO] [stdout]     |                     ------------ matches any value
[INFO] [stdout] 604 |                     _ => Err((0, "expecting subgraph")),
[INFO] [stdout]     |                     ^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lib.rs:609:21
[INFO] [stdout]     |
[INFO] [stdout] 609 |                     (_, Ok(_)) => Err((0, "expecting subgraph")),
[INFO] [stdout]     |                     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]    --> src/lib.rs:488:24
[INFO] [stdout]     |
[INFO] [stdout] 488 |         matches!(self, other)
[INFO] [stdout]     |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]    --> src/lib.rs:487:18
[INFO] [stdout]     |
[INFO] [stdout] 487 |     fn eq(&self, other: &Self) -> bool {
[INFO] [stdout]     |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key_subgraph`
[INFO] [stdout]    --> src/lib.rs:597:13
[INFO] [stdout]     |
[INFO] [stdout] 597 |         let key_subgraph: &str = "subgraph";
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_key_subgraph`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right_brace`
[INFO] [stdout]    --> src/lib.rs:598:13
[INFO] [stdout]     |
[INFO] [stdout] 598 |         let right_brace: &str = "}";
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_right_brace`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right_brace`
[INFO] [stdout]    --> src/lib.rs:600:42
[INFO] [stdout]     |
[INFO] [stdout] 600 |             (Some(idx_left_brace), Some(&right_brace)) => match idx_left_brace {
[INFO] [stdout]     |                                          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_right_brace`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key_subgraph`
[INFO] [stdout]    --> src/lib.rs:603:21
[INFO] [stdout]     |
[INFO] [stdout] 603 |                     key_subgraph => parse_stmt_list_and_return(None, 2),
[INFO] [stdout]     |                     ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_key_subgraph`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key_subgraph`
[INFO] [stdout]    --> src/lib.rs:608:22
[INFO] [stdout]     |
[INFO] [stdout] 608 |                     (key_subgraph, Ok(id)) => parse_stmt_list_and_return(Some(id), 3),
[INFO] [stdout]     |                      ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_key_subgraph`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]    --> src/lib.rs:421:8
[INFO] [stdout]     |
[INFO] [stdout] 421 |     fn get(&self, key: &str) -> Option<&IdWrapper<'a>> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `len`
[INFO] [stdout]    --> src/lib.rs:425:8
[INFO] [stdout]     |
[INFO] [stdout] 425 |     fn len(&self) -> usize {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `key`
[INFO] [stdout]    --> src/lib.rs:504:5
[INFO] [stdout]     |
[INFO] [stdout] 504 |     key: AttrStmtKey,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `attr_list`
[INFO] [stdout]    --> src/lib.rs:505:5
[INFO] [stdout]     |
[INFO] [stdout] 505 |     attr_list: AttrList<'a>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]    --> src/lib.rs:533:5
[INFO] [stdout]     |
[INFO] [stdout] 533 |     id: NodeId<'a>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `attr_list`
[INFO] [stdout]    --> src/lib.rs:534:5
[INFO] [stdout]     |
[INFO] [stdout] 534 |     attr_list: Option<AttrList<'a>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]    --> src/lib.rs:577:5
[INFO] [stdout]     |
[INFO] [stdout] 577 |     id: Option<dot::Id<'a>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `stmt_list`
[INFO] [stdout]    --> src/lib.rs:578:5
[INFO] [stdout]     |
[INFO] [stdout] 578 |     stmt_list: StmtList<'a>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `attr_list`
[INFO] [stdout]    --> src/lib.rs:718:5
[INFO] [stdout]     |
[INFO] [stdout] 718 |     attr_list: Option<AttrList<'a>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:350:61
[INFO] [stdout]     |
[INFO] [stdout] 350 |     fn parse_from(tokens: &[&'a str]) -> Result<NodeId<'a>, ((usize, &'a str))> {
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lib.rs:10:13
[INFO] [stdout]     |
[INFO] [stdout] 10  |             _ => false
[INFO] [stdout]     |             ^ unreachable pattern
[INFO] [stdout] ...
[INFO] [stdout] 235 |             (Some(a), Some(_b)) => matches!(a, _b) && id_match(self, other),
[INFO] [stdout]     |                                    ---------------
[INFO] [stdout]     |                                    |           |
[INFO] [stdout]     |                                    |           matches any value
[INFO] [stdout]     |                                    in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lib.rs:10:13
[INFO] [stdout]     |
[INFO] [stdout] 10  |             _ => false
[INFO] [stdout]     |             ^ unreachable pattern
[INFO] [stdout] ...
[INFO] [stdout] 488 |         matches!(self, other)
[INFO] [stdout]     |         ---------------------
[INFO] [stdout]     |         |              |
[INFO] [stdout]     |         |              matches any value
[INFO] [stdout]     |         in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lib.rs:604:21
[INFO] [stdout]     |
[INFO] [stdout] 603 |                     key_subgraph => parse_stmt_list_and_return(None, 2),
[INFO] [stdout]     |                     ------------ matches any value
[INFO] [stdout] 604 |                     _ => Err((0, "expecting subgraph")),
[INFO] [stdout]     |                     ^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lib.rs:609:21
[INFO] [stdout]     |
[INFO] [stdout] 609 |                     (_, Ok(_)) => Err((0, "expecting subgraph")),
[INFO] [stdout]     |                     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]    --> src/lib.rs:488:24
[INFO] [stdout]     |
[INFO] [stdout] 488 |         matches!(self, other)
[INFO] [stdout]     |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `other`
[INFO] [stdout]    --> src/lib.rs:487:18
[INFO] [stdout]     |
[INFO] [stdout] 487 |     fn eq(&self, other: &Self) -> bool {
[INFO] [stdout]     |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key_subgraph`
[INFO] [stdout]    --> src/lib.rs:597:13
[INFO] [stdout]     |
[INFO] [stdout] 597 |         let key_subgraph: &str = "subgraph";
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_key_subgraph`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right_brace`
[INFO] [stdout]    --> src/lib.rs:598:13
[INFO] [stdout]     |
[INFO] [stdout] 598 |         let right_brace: &str = "}";
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_right_brace`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right_brace`
[INFO] [stdout]    --> src/lib.rs:600:42
[INFO] [stdout]     |
[INFO] [stdout] 600 |             (Some(idx_left_brace), Some(&right_brace)) => match idx_left_brace {
[INFO] [stdout]     |                                          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_right_brace`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key_subgraph`
[INFO] [stdout]    --> src/lib.rs:603:21
[INFO] [stdout]     |
[INFO] [stdout] 603 |                     key_subgraph => parse_stmt_list_and_return(None, 2),
[INFO] [stdout]     |                     ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_key_subgraph`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key_subgraph`
[INFO] [stdout]    --> src/lib.rs:608:22
[INFO] [stdout]     |
[INFO] [stdout] 608 |                     (key_subgraph, Ok(id)) => parse_stmt_list_and_return(Some(id), 3),
[INFO] [stdout]     |                      ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_key_subgraph`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `attr_list`
[INFO] [stdout]    --> src/lib.rs:505:5
[INFO] [stdout]     |
[INFO] [stdout] 505 |     attr_list: AttrList<'a>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `stmt_list`
[INFO] [stdout]    --> src/lib.rs:578:5
[INFO] [stdout]     |
[INFO] [stdout] 578 |     stmt_list: StmtList<'a>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.33s
[INFO] running `Command { std: "docker" "inspect" "2fd66757af6bbbd2915d50a2914e8d94205fa8a015a069b2afc83902b643e891", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fd66757af6bbbd2915d50a2914e8d94205fa8a015a069b2afc83902b643e891", kill_on_drop: false }`
[INFO] [stdout] 2fd66757af6bbbd2915d50a2914e8d94205fa8a015a069b2afc83902b643e891
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c65dd0c9e4b67166ab5c06b7dfa6942c18ede77cf6ea92ea941efa49b4ab5b7c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c65dd0c9e4b67166ab5c06b7dfa6942c18ede77cf6ea92ea941efa49b4ab5b7c", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:350:61
[INFO] [stderr]     |
[INFO] [stderr] 350 |     fn parse_from(tokens: &[&'a str]) -> Result<NodeId<'a>, ((usize, &'a str))> {
[INFO] [stderr]     |                                                             ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/lib.rs:10:13
[INFO] [stderr]     |
[INFO] [stderr] 10  |             _ => false
[INFO] [stderr]     |             ^ unreachable pattern
[INFO] [stderr] ...
[INFO] [stderr] 235 |             (Some(a), Some(_b)) => matches!(a, _b) && id_match(self, other),
[INFO] [stderr]     |                                    ---------------
[INFO] [stderr]     |                                    |           |
[INFO] [stderr]     |                                    |           matches any value
[INFO] [stderr]     |                                    in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/lib.rs:10:13
[INFO] [stderr]     |
[INFO] [stderr] 10  |             _ => false
[INFO] [stderr]     |             ^ unreachable pattern
[INFO] [stderr] ...
[INFO] [stderr] 488 |         matches!(self, other)
[INFO] [stderr]     |         ---------------------
[INFO] [stderr]     |         |              |
[INFO] [stderr]     |         |              matches any value
[INFO] [stderr]     |         in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/lib.rs:604:21
[INFO] [stderr]     |
[INFO] [stderr] 603 |                     key_subgraph => parse_stmt_list_and_return(None, 2),
[INFO] [stderr]     |                     ------------ matches any value
[INFO] [stderr] 604 |                     _ => Err((0, "expecting subgraph")),
[INFO] [stderr]     |                     ^ unreachable pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/lib.rs:609:21
[INFO] [stderr]     |
[INFO] [stderr] 609 |                     (_, Ok(_)) => Err((0, "expecting subgraph")),
[INFO] [stderr]     |                     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:350:61
[INFO] [stderr]     |
[INFO] [stderr] 350 |     fn parse_from(tokens: &[&'a str]) -> Result<NodeId<'a>, ((usize, &'a str))> {
[INFO] [stderr]     |                                                             ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `other`
[INFO] [stderr]    --> src/lib.rs:488:24
[INFO] [stderr]     |
[INFO] [stderr] 488 |         matches!(self, other)
[INFO] [stderr]     |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `other`
[INFO] [stderr]    --> src/lib.rs:487:18
[INFO] [stderr]     |
[INFO] [stderr] 487 |     fn eq(&self, other: &Self) -> bool {
[INFO] [stderr]     |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key_subgraph`
[INFO] [stderr]    --> src/lib.rs:597:13
[INFO] [stderr]     |
[INFO] [stderr] 597 |         let key_subgraph: &str = "subgraph";
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_key_subgraph`
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/lib.rs:10:13
[INFO] [stderr]     |
[INFO] [stderr] 10  |             _ => false
[INFO] [stderr]     |             ^ unreachable pattern
[INFO] [stderr] ...
[INFO] [stderr] 235 |             (Some(a), Some(_b)) => matches!(a, _b) && id_match(self, other),
[INFO] [stderr]     |                                    ---------------
[INFO] [stderr]     |                                    |           |
[INFO] [stderr]     |                                    |           matches any value
[INFO] [stderr]     |                                    in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `right_brace`
[INFO] [stderr]    --> src/lib.rs:598:13
[INFO] [stderr]     |
[INFO] [stderr] 598 |         let right_brace: &str = "}";
[INFO] [stderr]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_right_brace`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `right_brace`
[INFO] [stderr]    --> src/lib.rs:600:42
[INFO] [stderr]     |
[INFO] [stderr] 600 |             (Some(idx_left_brace), Some(&right_brace)) => match idx_left_brace {
[INFO] [stderr]     |                                          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_right_brace`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key_subgraph`
[INFO] [stderr]    --> src/lib.rs:603:21
[INFO] [stderr]     |
[INFO] [stderr] 603 |                     key_subgraph => parse_stmt_list_and_return(None, 2),
[INFO] [stderr]     |                     ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_key_subgraph`
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/lib.rs:10:13
[INFO] [stderr]     |
[INFO] [stderr] 10  |             _ => false
[INFO] [stderr]     |             ^ unreachable pattern
[INFO] [stderr] ...
[INFO] [stderr] 488 |         matches!(self, other)
[INFO] [stderr]     |         ---------------------
[INFO] [stderr]     |         |              |
[INFO] [stderr]     |         |              matches any value
[INFO] [stderr]     |         in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key_subgraph`
[INFO] [stderr]    --> src/lib.rs:608:22
[INFO] [stderr]     |
[INFO] [stderr] 608 |                     (key_subgraph, Ok(id)) => parse_stmt_list_and_return(Some(id), 3),
[INFO] [stderr]     |                      ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_key_subgraph`
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/lib.rs:604:21
[INFO] [stderr]     |
[INFO] [stderr] 603 |                     key_subgraph => parse_stmt_list_and_return(None, 2),
[INFO] [stderr]     |                     ------------ matches any value
[INFO] [stderr] 604 |                     _ => Err((0, "expecting subgraph")),
[INFO] [stderr]     |                     ^ unreachable pattern
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get`
[INFO] [stderr]    --> src/lib.rs:421:8
[INFO] [stderr]     |
[INFO] [stderr] 421 |     fn get(&self, key: &str) -> Option<&IdWrapper<'a>> {
[INFO] [stderr]     |        ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/lib.rs:609:21
[INFO] [stderr]     |
[INFO] [stderr] 609 |                     (_, Ok(_)) => Err((0, "expecting subgraph")),
[INFO] [stderr]     |                     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `len`
[INFO] [stderr]    --> src/lib.rs:425:8
[INFO] [stderr]     |
[INFO] [stderr] 425 |     fn len(&self) -> usize {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `key`
[INFO] [stderr]    --> src/lib.rs:504:5
[INFO] [stderr]     |
[INFO] [stderr] 504 |     key: AttrStmtKey,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `other`
[INFO] [stderr]    --> src/lib.rs:488:24
[INFO] [stderr]     |
[INFO] [stderr] 488 |         matches!(self, other)
[INFO] [stderr]     |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `attr_list`
[INFO] [stderr]    --> src/lib.rs:505:5
[INFO] [stderr]     |
[INFO] [stderr] 505 |     attr_list: AttrList<'a>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `id`
[INFO] [stderr]    --> src/lib.rs:533:5
[INFO] [stderr]     |
[INFO] [stderr] 533 |     id: NodeId<'a>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `other`
[INFO] [stderr]    --> src/lib.rs:487:18
[INFO] [stderr]     |
[INFO] [stderr] 487 |     fn eq(&self, other: &Self) -> bool {
[INFO] [stderr]     |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `attr_list`
[INFO] [stderr]    --> src/lib.rs:534:5
[INFO] [stderr]     |
[INFO] [stderr] 534 |     attr_list: Option<AttrList<'a>>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `id`
[INFO] [stderr]    --> src/lib.rs:577:5
[INFO] [stderr]     |
[INFO] [stderr] 577 |     id: Option<dot::Id<'a>>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key_subgraph`
[INFO] [stderr]    --> src/lib.rs:597:13
[INFO] [stderr]     |
[INFO] [stderr] 597 |         let key_subgraph: &str = "subgraph";
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_key_subgraph`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `stmt_list`
[INFO] [stderr]    --> src/lib.rs:578:5
[INFO] [stderr]     |
[INFO] [stderr] 578 |     stmt_list: StmtList<'a>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `right_brace`
[INFO] [stderr]    --> src/lib.rs:598:13
[INFO] [stderr]     |
[INFO] [stderr] 598 |         let right_brace: &str = "}";
[INFO] [stderr]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_right_brace`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `attr_list`
[INFO] [stderr]    --> src/lib.rs:718:5
[INFO] [stderr]     |
[INFO] [stderr] 718 |     attr_list: Option<AttrList<'a>>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 21 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `right_brace`
[INFO] [stderr]    --> src/lib.rs:600:42
[INFO] [stderr]     |
[INFO] [stderr] 600 |             (Some(idx_left_brace), Some(&right_brace)) => match idx_left_brace {
[INFO] [stderr]     |                                          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_right_brace`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key_subgraph`
[INFO] [stderr]    --> src/lib.rs:603:21
[INFO] [stderr]     |
[INFO] [stderr] 603 |                     key_subgraph => parse_stmt_list_and_return(None, 2),
[INFO] [stderr]     |                     ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_key_subgraph`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key_subgraph`
[INFO] [stderr]    --> src/lib.rs:608:22
[INFO] [stderr]     |
[INFO] [stderr] 608 |                     (key_subgraph, Ok(id)) => parse_stmt_list_and_return(Some(id), 3),
[INFO] [stderr]     |                      ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_key_subgraph`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `attr_list`
[INFO] [stderr]    --> src/lib.rs:505:5
[INFO] [stderr]     |
[INFO] [stderr] 505 |     attr_list: AttrList<'a>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `stmt_list`
[INFO] [stderr]    --> src/lib.rs:578:5
[INFO] [stderr]     |
[INFO] [stderr] 578 |     stmt_list: StmtList<'a>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 14 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/libdot_parse-40e5d3b77c6018f9
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test tests::format_print ... ok
[INFO] [stdout] test tests::parse_attrlist ... ok
[INFO] [stdout] test tests::parse_edge_rhs ... ok
[INFO] [stdout] test tests::parse_subgraph ... ok
[INFO] [stdout] test tests::parse_edge_stmt ... ok
[INFO] [stdout] test tests::parse_stmt_list ... ok
[INFO] [stdout] test tests::parse_node_stmt ... ok
[INFO] [stdout] test tests::parse_nodeid ... ok
[INFO] [stdout] test tests::parse_attr_stmt ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/dot_parse-f4faa26d93d18e84
[INFO] [stdout] test tests::parse_stmt ... ok
[INFO] [stdout] test tests::parse_alist ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests libdot_parse
[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
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> /opt/rustwide/workdir/src/lib.rs:350:61
[INFO] [stderr]     |
[INFO] [stderr] 350 |     fn parse_from(tokens: &[&'a str]) -> Result<NodeId<'a>, ((usize, &'a str))> {
[INFO] [stderr]     |                                                             ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c65dd0c9e4b67166ab5c06b7dfa6942c18ede77cf6ea92ea941efa49b4ab5b7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c65dd0c9e4b67166ab5c06b7dfa6942c18ede77cf6ea92ea941efa49b4ab5b7c", kill_on_drop: false }`
[INFO] [stdout] c65dd0c9e4b67166ab5c06b7dfa6942c18ede77cf6ea92ea941efa49b4ab5b7c
