[INFO] fetching crate icentral-graph-hash 0.1.0...
[INFO] checking icentral-graph-hash-0.1.0 against master#d5419f1e97b90741d51841f800d3c697c662567d for pr-147565
[INFO] extracting crate icentral-graph-hash 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate icentral-graph-hash 0.1.0
[INFO] finished tweaking crates.io crate icentral-graph-hash 0.1.0
[INFO] tweaked toml for crates.io crate icentral-graph-hash 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate icentral-graph-hash 0.1.0 on toolchain d5419f1e97b90741d51841f800d3c697c662567d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d5419f1e97b90741d51841f800d3c697c662567d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate icentral-graph-hash 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d5419f1e97b90741d51841f800d3c697c662567d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded icentral-qube v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d5419f1e97b90741d51841f800d3c697c662567d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 03573124a40f0a3c6fc1863ee4bab85a4026c035d3e8c403e01807b4988baa17
[INFO] running `Command { std: "docker" "start" "-a" "03573124a40f0a3c6fc1863ee4bab85a4026c035d3e8c403e01807b4988baa17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03573124a40f0a3c6fc1863ee4bab85a4026c035d3e8c403e01807b4988baa17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03573124a40f0a3c6fc1863ee4bab85a4026c035d3e8c403e01807b4988baa17", kill_on_drop: false }`
[INFO] [stdout] 03573124a40f0a3c6fc1863ee4bab85a4026c035d3e8c403e01807b4988baa17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d5419f1e97b90741d51841f800d3c697c662567d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 86df4d478b4eeac2ce3c3d9f97618a24c2adcea5a7065ef1a05f4b9090dcf5be
[INFO] running `Command { std: "docker" "start" "-a" "86df4d478b4eeac2ce3c3d9f97618a24c2adcea5a7065ef1a05f4b9090dcf5be", kill_on_drop: false }`
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[INFO] [stderr]     Checking icentral-brandes v0.1.0
[INFO] [stderr]     Checking icentral-muc v0.1.0
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[INFO] [stderr]     Checking icentral-graph-hash v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `icentral_graph::*`
[INFO] [stdout]  --> src/imports.rs:8:16
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub(crate) use icentral_graph::*;
[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: `icentral_muc::*`
[INFO] [stdout]   --> src/imports.rs:11:16
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub(crate) use icentral_muc::*;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `icentral_graph::*`
[INFO] [stdout]  --> src/imports.rs:8:16
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub(crate) use icentral_graph::*;
[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: `icentral_muc::*`
[INFO] [stdout]   --> src/imports.rs:11:16
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub(crate) use icentral_muc::*;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `g`
[INFO] [stdout]   --> src/graph_hash.rs:80:30
[INFO] [stdout]    |
[INFO] [stdout] 80 |     fn reset_with(&mut self, g: &GraphHash) {
[INFO] [stdout]    |                              ^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/graph_hash.rs:249:67
[INFO] [stdout]     |
[INFO] [stdout] 249 |     fn brandes_iter_update_dist_and_path_for_neighbors(&mut self, s: NodeId)
[INFO] [stdout]     |                                                                   ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/graph_hash.rs:733:9
[INFO] [stdout]     |
[INFO] [stdout] 733 |         id:                           NodeId, 
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/graph_hash.rs:156:5
[INFO] [stdout]     |
[INFO] [stdout] 156 |     delegate_to_neighbors_map!{}
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 156 |     let _ = delegate_to_neighbors_map!{}
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/graph_hash.rs:169:13
[INFO] [stdout]     |
[INFO] [stdout] 169 |             x.insert_edge(&edge);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 169 |             let _ = x.insert_edge(&edge);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/graph_hash.rs:192:21
[INFO] [stdout]     |
[INFO] [stdout] 192 |                     x.insert_edge(&Edge::new_with_ids(i, j));
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 192 |                     let _ = x.insert_edge(&Edge::new_with_ids(i, j));
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/graph_hash.rs:428:9
[INFO] [stdout]     |
[INFO] [stdout] 428 | /         self.nodes_map.extend_with(
[INFO] [stdout] 429 | |             &other.nodes_map
[INFO] [stdout] 430 | |         );
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 428 |         let _ = self.nodes_map.extend_with(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/graph_hash.rs:475:13
[INFO] [stdout]     |
[INFO] [stdout] 475 |             self.remove_edge(&bridge);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 475 |             let _ = self.remove_edge(&bridge);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/graph_hash.rs:580:17
[INFO] [stdout]     |
[INFO] [stdout] 580 |                 self.insert_edge(&Edge::new(node, nbr));
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 580 |                 let _ = self.insert_edge(&Edge::new(node, nbr));
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/graph_hash.rs:800:9
[INFO] [stdout]     |
[INFO] [stdout] 800 |         self.remove_edge(&edge);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 800 |         let _ = self.remove_edge(&edge);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/graph_hash.rs:825:13
[INFO] [stdout]     |
[INFO] [stdout] 825 |             self.insert_edge(&edge);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 825 |             let _ = self.insert_edge(&edge);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `g`
[INFO] [stdout]   --> src/graph_hash.rs:80:30
[INFO] [stdout]    |
[INFO] [stdout] 80 |     fn reset_with(&mut self, g: &GraphHash) {
[INFO] [stdout]    |                              ^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/graph_hash.rs:249:67
[INFO] [stdout]     |
[INFO] [stdout] 249 |     fn brandes_iter_update_dist_and_path_for_neighbors(&mut self, s: NodeId)
[INFO] [stdout]     |                                                                   ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/graph_hash.rs:733:9
[INFO] [stdout]     |
[INFO] [stdout] 733 |         id:                           NodeId, 
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/graph_hash.rs:156:5
[INFO] [stdout]     |
[INFO] [stdout] 156 |     delegate_to_neighbors_map!{}
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 156 |     let _ = delegate_to_neighbors_map!{}
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/graph_hash.rs:169:13
[INFO] [stdout]     |
[INFO] [stdout] 169 |             x.insert_edge(&edge);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 169 |             let _ = x.insert_edge(&edge);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/graph_hash.rs:192:21
[INFO] [stdout]     |
[INFO] [stdout] 192 |                     x.insert_edge(&Edge::new_with_ids(i, j));
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 192 |                     let _ = x.insert_edge(&Edge::new_with_ids(i, j));
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/graph_hash.rs:428:9
[INFO] [stdout]     |
[INFO] [stdout] 428 | /         self.nodes_map.extend_with(
[INFO] [stdout] 429 | |             &other.nodes_map
[INFO] [stdout] 430 | |         );
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 428 |         let _ = self.nodes_map.extend_with(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/graph_hash.rs:475:13
[INFO] [stdout]     |
[INFO] [stdout] 475 |             self.remove_edge(&bridge);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 475 |             let _ = self.remove_edge(&bridge);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/graph_hash.rs:580:17
[INFO] [stdout]     |
[INFO] [stdout] 580 |                 self.insert_edge(&Edge::new(node, nbr));
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 580 |                 let _ = self.insert_edge(&Edge::new(node, nbr));
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/graph_hash.rs:800:9
[INFO] [stdout]     |
[INFO] [stdout] 800 |         self.remove_edge(&edge);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 800 |         let _ = self.remove_edge(&edge);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/graph_hash.rs:825:13
[INFO] [stdout]     |
[INFO] [stdout] 825 |             self.insert_edge(&edge);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 825 |             let _ = self.insert_edge(&edge);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 59.98s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: icentral-neighbors v0.1.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "86df4d478b4eeac2ce3c3d9f97618a24c2adcea5a7065ef1a05f4b9090dcf5be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86df4d478b4eeac2ce3c3d9f97618a24c2adcea5a7065ef1a05f4b9090dcf5be", kill_on_drop: false }`
[INFO] [stdout] 86df4d478b4eeac2ce3c3d9f97618a24c2adcea5a7065ef1a05f4b9090dcf5be
