[INFO] fetching crate icentral-articulation-point 0.1.0...
[INFO] testing icentral-articulation-point-0.1.0 against master#1ef7943ee607160a564655b6596f83670ef95df5 for pr-146098-6
[INFO] extracting crate icentral-articulation-point 0.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate icentral-articulation-point 0.1.0
[INFO] finished tweaking crates.io crate icentral-articulation-point 0.1.0
[INFO] tweaked toml for crates.io crate icentral-articulation-point 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate icentral-articulation-point 0.1.0 on toolchain 1ef7943ee607160a564655b6596f83670ef95df5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate icentral-articulation-point 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" "+1ef7943ee607160a564655b6596f83670ef95df5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+1ef7943ee607160a564655b6596f83670ef95df5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "5fd47bc61a9dabb6e92aaf86644b3052c333d2cc9a3f28d17edbb8d67939df53", kill_on_drop: false }`
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[INFO] [stderr]    Compiling icentral-neighbors v0.1.0
[INFO] [stderr]    Compiling icentral-articulation-point v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/articulation_point.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let mut u: NodeId = NodeId::zero();
[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: unused `Result` that must be used
[INFO] [stdout]   --> src/articulation_point.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 | /         self.articulation_point_dfs_visitor(
[INFO] [stdout] 72 | |             u, 
[INFO] [stdout] 73 | |             &mut ctx,
[INFO] [stdout] 74 | |             out_vec
[INFO] [stdout] 75 | |         );
[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] 71 |         let _ = self.articulation_point_dfs_visitor(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/articulation_point.rs:144:9
[INFO] [stdout]     |
[INFO] [stdout] 144 | /         self.articulation_point_dfs_visitor(
[INFO] [stdout] 145 | |             v, 
[INFO] [stdout] 146 | |             ctx,
[INFO] [stdout] 147 | |             articulation_point_vec
[INFO] [stdout] 148 | |         );
[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] 144 |         let _ = self.articulation_point_dfs_visitor(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 19s
[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 2`
[INFO] running `Command { std: "docker" "inspect" "ccd47295320f85cefa4beba360a557b82ffa34f042b9420d15a729964cefc666", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccd47295320f85cefa4beba360a557b82ffa34f042b9420d15a729964cefc666", kill_on_drop: false }`
[INFO] [stdout] ccd47295320f85cefa4beba360a557b82ffa34f042b9420d15a729964cefc666
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+1ef7943ee607160a564655b6596f83670ef95df5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 959340907d7162c6d27b300460206c6a8d2b99eb99005918ef5b4558396cb712
[INFO] running `Command { std: "docker" "start" "-a" "959340907d7162c6d27b300460206c6a8d2b99eb99005918ef5b4558396cb712", kill_on_drop: false }`
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/articulation_point.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let mut u: NodeId = NodeId::zero();
[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: unused `Result` that must be used
[INFO] [stdout]   --> src/articulation_point.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 | /         self.articulation_point_dfs_visitor(
[INFO] [stdout] 72 | |             u, 
[INFO] [stdout] 73 | |             &mut ctx,
[INFO] [stdout] 74 | |             out_vec
[INFO] [stdout] 75 | |         );
[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] 71 |         let _ = self.articulation_point_dfs_visitor(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling icentral-articulation-point v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/articulation_point.rs:144:9
[INFO] [stdout]     |
[INFO] [stdout] 144 | /         self.articulation_point_dfs_visitor(
[INFO] [stdout] 145 | |             v, 
[INFO] [stdout] 146 | |             ctx,
[INFO] [stdout] 147 | |             articulation_point_vec
[INFO] [stdout] 148 | |         );
[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] 144 |         let _ = self.articulation_point_dfs_visitor(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/articulation_point.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let mut u: NodeId = NodeId::zero();
[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: unused `Result` that must be used
[INFO] [stdout]   --> src/articulation_point.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 | /         self.articulation_point_dfs_visitor(
[INFO] [stdout] 72 | |             u, 
[INFO] [stdout] 73 | |             &mut ctx,
[INFO] [stdout] 74 | |             out_vec
[INFO] [stdout] 75 | |         );
[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] 71 |         let _ = self.articulation_point_dfs_visitor(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/articulation_point.rs:144:9
[INFO] [stdout]     |
[INFO] [stdout] 144 | /         self.articulation_point_dfs_visitor(
[INFO] [stdout] 145 | |             v, 
[INFO] [stdout] 146 | |             ctx,
[INFO] [stdout] 147 | |             articulation_point_vec
[INFO] [stdout] 148 | |         );
[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] 144 |         let _ = self.articulation_point_dfs_visitor(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.99s
[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 2`
[INFO] running `Command { std: "docker" "inspect" "959340907d7162c6d27b300460206c6a8d2b99eb99005918ef5b4558396cb712", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "959340907d7162c6d27b300460206c6a8d2b99eb99005918ef5b4558396cb712", kill_on_drop: false }`
[INFO] [stdout] 959340907d7162c6d27b300460206c6a8d2b99eb99005918ef5b4558396cb712
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+1ef7943ee607160a564655b6596f83670ef95df5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 93f69a9de6cfc5a2c719487c8cf30106e6b7af6da1197ba83b4477a999d424a5
[INFO] running `Command { std: "docker" "start" "-a" "93f69a9de6cfc5a2c719487c8cf30106e6b7af6da1197ba83b4477a999d424a5", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/articulation_point.rs:46:13
[INFO] [stderr]    |
[INFO] [stderr] 46 |         let mut u: NodeId = NodeId::zero();
[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: unused `Result` that must be used
[INFO] [stderr]   --> src/articulation_point.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 | /         self.articulation_point_dfs_visitor(
[INFO] [stderr] 72 | |             u, 
[INFO] [stderr] 73 | |             &mut ctx,
[INFO] [stderr] 74 | |             out_vec
[INFO] [stderr] 75 | |         );
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 71 |         let _ = self.articulation_point_dfs_visitor(
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/articulation_point.rs:144:9
[INFO] [stderr]     |
[INFO] [stderr] 144 | /         self.articulation_point_dfs_visitor(
[INFO] [stderr] 145 | |             v, 
[INFO] [stderr] 146 | |             ctx,
[INFO] [stderr] 147 | |             articulation_point_vec
[INFO] [stderr] 148 | |         );
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 144 |         let _ = self.articulation_point_dfs_visitor(
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `icentral-articulation-point` (lib) generated 3 warnings (run `cargo fix --lib -p icentral-articulation-point` to apply 1 suggestion)
[INFO] [stderr] warning: `icentral-articulation-point` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.22s
[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 2`
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/icentral_articulation_point-b74269d3789b1593)
[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 icentral_articulation_point
[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" "93f69a9de6cfc5a2c719487c8cf30106e6b7af6da1197ba83b4477a999d424a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93f69a9de6cfc5a2c719487c8cf30106e6b7af6da1197ba83b4477a999d424a5", kill_on_drop: false }`
[INFO] [stdout] 93f69a9de6cfc5a2c719487c8cf30106e6b7af6da1197ba83b4477a999d424a5
