[INFO] fetching crate dagre_rust 0.0.5...
[INFO] testing dagre_rust-0.0.5 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate dagre_rust 0.0.5 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate dagre_rust 0.0.5
[INFO] finished tweaking crates.io crate dagre_rust 0.0.5
[INFO] tweaked toml for crates.io crate dagre_rust 0.0.5 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate dagre_rust 0.0.5 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 2 packages to latest compatible versions
[INFO] [stderr]       Adding graphlib_rust v0.0.2 (available: v0.0.4)
[INFO] [stderr]       Adding ordered_hashmap v0.0.3 (available: v0.0.4)
[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 graphlib_rust v0.0.2
[INFO] [stderr]   Downloaded ordered_hashmap v0.0.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] f5a6a15467427422d003739ebe66a5b25f0254e737f5efc98c8d8712969a6974
[INFO] running `Command { std: "docker" "start" "-a" "f5a6a15467427422d003739ebe66a5b25f0254e737f5efc98c8d8712969a6974", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f5a6a15467427422d003739ebe66a5b25f0254e737f5efc98c8d8712969a6974", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5a6a15467427422d003739ebe66a5b25f0254e737f5efc98c8d8712969a6974", kill_on_drop: false }`
[INFO] [stdout] f5a6a15467427422d003739ebe66a5b25f0254e737f5efc98c8d8712969a6974
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] b2283a5772fd91f036d1faf071a7ea27afa75ed2618819632e7bb52df5419e82
[INFO] running `Command { std: "docker" "start" "-a" "b2283a5772fd91f036d1faf071a7ea27afa75ed2618819632e7bb52df5419e82", kill_on_drop: false }`
[INFO] [stderr]    Compiling ordered_hashmap v0.0.3
[INFO] [stderr]    Compiling graphlib_rust v0.0.2
[INFO] [stderr]    Compiling dagre_rust v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `delta` is never read
[INFO] [stdout]   --> src/layout/rank/feasible_tree.rs:44:32
[INFO] [stdout]    |
[INFO] [stdout] 44 |   let mut delta: Option<i32> = None;
[INFO] [stdout]    |                                ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e1`
[INFO] [stdout]    --> src/layout/rank/feasible_tree.rs:105:15
[INFO] [stdout]     |
[INFO] [stdout] 105 |     .min_by(|(e1, e1_), (e2, e2_)| {
[INFO] [stdout]     |               ^^ help: if this is intentional, prefix it with an underscore: `_e1`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e2`
[INFO] [stdout]    --> src/layout/rank/feasible_tree.rs:105:26
[INFO] [stdout]     |
[INFO] [stdout] 105 |     .min_by(|(e1, e1_), (e2, e2_)| {
[INFO] [stdout]     |                          ^^ help: if this is intentional, prefix it with an underscore: `_e2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/layout/rank/feasible_tree.rs:104:15
[INFO] [stdout]     |
[INFO] [stdout] 104 |     .filter(|(e, e_)| e_.is_some())
[INFO] [stdout]     |               ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `prev_north_pos` is assigned to, but never used
[INFO] [stdout]    --> src/layout/position/bk.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |     let mut prev_north_pos = -1;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_prev_north_pos` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `prev_north_pos` is never read
[INFO] [stdout]    --> src/layout/position/bk.rs:123:15
[INFO] [stdout]     |
[INFO] [stdout] 123 |               prev_north_pos = next_north_pos.clone();
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `delta` is never read
[INFO] [stdout]    --> src/layout/position/bk.rs:586:5
[INFO] [stdout]     |
[INFO] [stdout] 586 |     delta = 0.0;
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/layout/mod.rs:308:9
[INFO] [stdout]     |
[INFO] [stdout] 308 |     let mut node = g.node_mut(&v).unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/layout/util.rs:261:66
[INFO] [stdout]     |
[INFO] [stdout] 261 |   return add_dummy_node(graph, "border".to_string(), node, prefix.clone().to_string());
[INFO] [stdout]     |                                                                  ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/layout/order/mod.rs:85:60
[INFO] [stdout]    |
[INFO] [stdout] 85 |     let root = lg.graph().root.clone().unwrap_or(GRAPH_NODE.clone().to_string());
[INFO] [stdout]    |                                                            ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.63s
[INFO] running `Command { std: "docker" "inspect" "b2283a5772fd91f036d1faf071a7ea27afa75ed2618819632e7bb52df5419e82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2283a5772fd91f036d1faf071a7ea27afa75ed2618819632e7bb52df5419e82", kill_on_drop: false }`
[INFO] [stdout] b2283a5772fd91f036d1faf071a7ea27afa75ed2618819632e7bb52df5419e82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 3ed038384193a532d3199fc830ded271f741ac425a48de2d04014c7f557d1504
[INFO] running `Command { std: "docker" "start" "-a" "3ed038384193a532d3199fc830ded271f741ac425a48de2d04014c7f557d1504", kill_on_drop: false }`
[INFO] [stdout] warning: value assigned to `delta` is never read
[INFO] [stdout]   --> src/layout/rank/feasible_tree.rs:44:32
[INFO] [stdout]    |
[INFO] [stdout] 44 |   let mut delta: Option<i32> = None;
[INFO] [stdout]    |                                ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling dagre_rust v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `e1`
[INFO] [stdout]    --> src/layout/rank/feasible_tree.rs:105:15
[INFO] [stdout]     |
[INFO] [stdout] 105 |     .min_by(|(e1, e1_), (e2, e2_)| {
[INFO] [stdout]     |               ^^ help: if this is intentional, prefix it with an underscore: `_e1`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e2`
[INFO] [stdout]    --> src/layout/rank/feasible_tree.rs:105:26
[INFO] [stdout]     |
[INFO] [stdout] 105 |     .min_by(|(e1, e1_), (e2, e2_)| {
[INFO] [stdout]     |                          ^^ help: if this is intentional, prefix it with an underscore: `_e2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/layout/rank/feasible_tree.rs:104:15
[INFO] [stdout]     |
[INFO] [stdout] 104 |     .filter(|(e, e_)| e_.is_some())
[INFO] [stdout]     |               ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `prev_north_pos` is assigned to, but never used
[INFO] [stdout]    --> src/layout/position/bk.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |     let mut prev_north_pos = -1;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_prev_north_pos` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `prev_north_pos` is never read
[INFO] [stdout]    --> src/layout/position/bk.rs:123:15
[INFO] [stdout]     |
[INFO] [stdout] 123 |               prev_north_pos = next_north_pos.clone();
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `delta` is never read
[INFO] [stdout]    --> src/layout/position/bk.rs:586:5
[INFO] [stdout]     |
[INFO] [stdout] 586 |     delta = 0.0;
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/layout/mod.rs:308:9
[INFO] [stdout]     |
[INFO] [stdout] 308 |     let mut node = g.node_mut(&v).unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/layout/util.rs:261:66
[INFO] [stdout]     |
[INFO] [stdout] 261 |   return add_dummy_node(graph, "border".to_string(), node, prefix.clone().to_string());
[INFO] [stdout]     |                                                                  ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/layout/order/mod.rs:85:60
[INFO] [stdout]    |
[INFO] [stdout] 85 |     let root = lg.graph().root.clone().unwrap_or(GRAPH_NODE.clone().to_string());
[INFO] [stdout]    |                                                            ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `delta` is never read
[INFO] [stdout]   --> src/layout/rank/feasible_tree.rs:44:32
[INFO] [stdout]    |
[INFO] [stdout] 44 |   let mut delta: Option<i32> = None;
[INFO] [stdout]    |                                ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e1`
[INFO] [stdout]    --> src/layout/rank/feasible_tree.rs:105:15
[INFO] [stdout]     |
[INFO] [stdout] 105 |     .min_by(|(e1, e1_), (e2, e2_)| {
[INFO] [stdout]     |               ^^ help: if this is intentional, prefix it with an underscore: `_e1`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e2`
[INFO] [stdout]    --> src/layout/rank/feasible_tree.rs:105:26
[INFO] [stdout]     |
[INFO] [stdout] 105 |     .min_by(|(e1, e1_), (e2, e2_)| {
[INFO] [stdout]     |                          ^^ help: if this is intentional, prefix it with an underscore: `_e2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/layout/rank/feasible_tree.rs:104:15
[INFO] [stdout]     |
[INFO] [stdout] 104 |     .filter(|(e, e_)| e_.is_some())
[INFO] [stdout]     |               ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `prev_north_pos` is assigned to, but never used
[INFO] [stdout]    --> src/layout/position/bk.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |     let mut prev_north_pos = -1;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_prev_north_pos` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `prev_north_pos` is never read
[INFO] [stdout]    --> src/layout/position/bk.rs:123:15
[INFO] [stdout]     |
[INFO] [stdout] 123 |               prev_north_pos = next_north_pos.clone();
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `delta` is never read
[INFO] [stdout]    --> src/layout/position/bk.rs:586:5
[INFO] [stdout]     |
[INFO] [stdout] 586 |     delta = 0.0;
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/layout/mod.rs:308:9
[INFO] [stdout]     |
[INFO] [stdout] 308 |     let mut node = g.node_mut(&v).unwrap();
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/layout/util.rs:261:66
[INFO] [stdout]     |
[INFO] [stdout] 261 |   return add_dummy_node(graph, "border".to_string(), node, prefix.clone().to_string());
[INFO] [stdout]     |                                                                  ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/layout/order/mod.rs:85:60
[INFO] [stdout]    |
[INFO] [stdout] 85 |     let root = lg.graph().root.clone().unwrap_or(GRAPH_NODE.clone().to_string());
[INFO] [stdout]    |                                                            ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "3ed038384193a532d3199fc830ded271f741ac425a48de2d04014c7f557d1504", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ed038384193a532d3199fc830ded271f741ac425a48de2d04014c7f557d1504", kill_on_drop: false }`
[INFO] [stdout] 3ed038384193a532d3199fc830ded271f741ac425a48de2d04014c7f557d1504
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 9031fcf6c8033af08b28806393c977d2b36ff9560962b7d203cc458c983bcb84
[INFO] running `Command { std: "docker" "start" "-a" "9031fcf6c8033af08b28806393c977d2b36ff9560962b7d203cc458c983bcb84", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `delta` is never read
[INFO] [stderr]   --> src/layout/rank/feasible_tree.rs:44:32
[INFO] [stderr]    |
[INFO] [stderr] 44 |   let mut delta: Option<i32> = None;
[INFO] [stderr]    |                                ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e1`
[INFO] [stderr]    --> src/layout/rank/feasible_tree.rs:105:15
[INFO] [stderr]     |
[INFO] [stderr] 105 |     .min_by(|(e1, e1_), (e2, e2_)| {
[INFO] [stderr]     |               ^^ help: if this is intentional, prefix it with an underscore: `_e1`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e2`
[INFO] [stderr]    --> src/layout/rank/feasible_tree.rs:105:26
[INFO] [stderr]     |
[INFO] [stderr] 105 |     .min_by(|(e1, e1_), (e2, e2_)| {
[INFO] [stderr]     |                          ^^ help: if this is intentional, prefix it with an underscore: `_e2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/layout/rank/feasible_tree.rs:104:15
[INFO] [stderr]     |
[INFO] [stderr] 104 |     .filter(|(e, e_)| e_.is_some())
[INFO] [stderr]     |               ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `prev_north_pos` is assigned to, but never used
[INFO] [stderr]    --> src/layout/position/bk.rs:107:9
[INFO] [stderr]     |
[INFO] [stderr] 107 |     let mut prev_north_pos = -1;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_prev_north_pos` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `prev_north_pos` is never read
[INFO] [stderr]    --> src/layout/position/bk.rs:123:15
[INFO] [stderr]     |
[INFO] [stderr] 123 |               prev_north_pos = next_north_pos.clone();
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `delta` is never read
[INFO] [stderr]    --> src/layout/position/bk.rs:586:5
[INFO] [stderr]     |
[INFO] [stderr] 586 |     delta = 0.0;
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/layout/mod.rs:308:9
[INFO] [stderr]     |
[INFO] [stderr] 308 |     let mut node = g.node_mut(&v).unwrap();
[INFO] [stderr]     |         ----^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stderr]    --> src/layout/util.rs:261:66
[INFO] [stderr]     |
[INFO] [stderr] 261 |   return add_dummy_node(graph, "border".to_string(), node, prefix.clone().to_string());
[INFO] [stderr]     |                                                                  ^^^^^^^^ help: remove this redundant call
[INFO] [stderr]     |
[INFO] [stderr]     = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stderr]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stderr]   --> src/layout/order/mod.rs:85:60
[INFO] [stderr]    |
[INFO] [stderr] 85 |     let root = lg.graph().root.clone().unwrap_or(GRAPH_NODE.clone().to_string());
[INFO] [stderr]    |                                                            ^^^^^^^^ help: remove this redundant call
[INFO] [stderr]    |
[INFO] [stderr]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stderr] 
[INFO] [stderr] warning: `dagre_rust` (lib) generated 10 warnings (run `cargo fix --lib -p dagre_rust` to apply 6 suggestions)
[INFO] [stderr] warning: `dagre_rust` (lib test) generated 10 warnings (10 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/dagre_rust-32cc77ad6eb66028)
[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 dagre_rust
[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" "9031fcf6c8033af08b28806393c977d2b36ff9560962b7d203cc458c983bcb84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9031fcf6c8033af08b28806393c977d2b36ff9560962b7d203cc458c983bcb84", kill_on_drop: false }`
[INFO] [stdout] 9031fcf6c8033af08b28806393c977d2b36ff9560962b7d203cc458c983bcb84