[INFO] fetching crate icentral-test-fuad 0.1.0...
[INFO] building icentral-test-fuad-0.1.0 against try#58b1b3c5342a414c161338871f8004258ccef2a7 for pr-149937
[INFO] extracting crate icentral-test-fuad 0.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate icentral-test-fuad 0.1.0
[INFO] finished tweaking crates.io crate icentral-test-fuad 0.1.0
[INFO] tweaked toml for crates.io crate icentral-test-fuad 0.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate icentral-test-fuad 0.1.0 on toolchain 58b1b3c5342a414c161338871f8004258ccef2a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+58b1b3c5342a414c161338871f8004258ccef2a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate icentral-test-fuad 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" "+58b1b3c5342a414c161338871f8004258ccef2a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+58b1b3c5342a414c161338871f8004258ccef2a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6c30201d8bdca13eac8de8ef1c5a006c74d24cdc59ce9f57c846400b1291cb5f
[INFO] running `Command { std: "docker" "start" "-a" "6c30201d8bdca13eac8de8ef1c5a006c74d24cdc59ce9f57c846400b1291cb5f", kill_on_drop: false }`
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[INFO] [stdout] 6c30201d8bdca13eac8de8ef1c5a006c74d24cdc59ce9f57c846400b1291cb5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+58b1b3c5342a414c161338871f8004258ccef2a7" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7536fec7e4a17d44aa192f30efc622bcbe9295ec32786bf264a3a723f53d268
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[INFO] [stderr]    Compiling icentral-test-fuad v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `icentral_stats::*`
[INFO] [stdout]   --> src/imports.rs:13:16
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub(crate) use icentral_stats::*;
[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_edges`
[INFO] [stdout]  --> src/imports.rs:6:16
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub(crate) use icentral_edges::*;
[INFO] [stdout]   |                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scores`
[INFO] [stdout]   --> src/test_fuad.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let scores: BetweennessScores
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_scores`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/test_fuad.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 | /         graph.insert_edge_update_bc_experimental(
[INFO] [stdout] 52 | |             &rand_edge, 
[INFO] [stdout] 53 | |             &mut bcc_stat, 
[INFO] [stdout] 54 | |             num_iter, 
[INFO] [stdout] 55 | |             num_iter
[INFO] [stdout] 56 | |         );
[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] 51 |         let _ = graph.insert_edge_update_bc_experimental(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/test_fuad.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 | /         graph.approx_bcc_iter_tm(
[INFO] [stdout] 67 | |             rand_edge.src, 
[INFO] [stdout] 68 | |             rand_edge.dst, 
[INFO] [stdout] 69 | |             &mut avg_iter_time_naive, 
[INFO] [stdout] 70 | |             Some(10)
[INFO] [stdout] 71 | |         );
[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] 66 |         let _ = graph.approx_bcc_iter_tm(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 05s
[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" "a7536fec7e4a17d44aa192f30efc622bcbe9295ec32786bf264a3a723f53d268", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7536fec7e4a17d44aa192f30efc622bcbe9295ec32786bf264a3a723f53d268", kill_on_drop: false }`
[INFO] [stdout] a7536fec7e4a17d44aa192f30efc622bcbe9295ec32786bf264a3a723f53d268
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+58b1b3c5342a414c161338871f8004258ccef2a7" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4516cab359bf64f012ce7b5f0be0709fda219c14fbdf993d9cff075794f898fd
[INFO] running `Command { std: "docker" "start" "-a" "4516cab359bf64f012ce7b5f0be0709fda219c14fbdf993d9cff075794f898fd", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `icentral_stats::*`
[INFO] [stdout]   --> src/imports.rs:13:16
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub(crate) use icentral_stats::*;
[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_edges`
[INFO] [stdout]  --> src/imports.rs:6:16
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub(crate) use icentral_edges::*;
[INFO] [stdout]   |                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scores`
[INFO] [stdout]   --> src/test_fuad.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let scores: BetweennessScores
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_scores`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/test_fuad.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 | /         graph.insert_edge_update_bc_experimental(
[INFO] [stdout] 52 | |             &rand_edge, 
[INFO] [stdout] 53 | |             &mut bcc_stat, 
[INFO] [stdout] 54 | |             num_iter, 
[INFO] [stdout] 55 | |             num_iter
[INFO] [stdout] 56 | |         );
[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] 51 |         let _ = graph.insert_edge_update_bc_experimental(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling icentral-test-fuad v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/test_fuad.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 | /         graph.approx_bcc_iter_tm(
[INFO] [stdout] 67 | |             rand_edge.src, 
[INFO] [stdout] 68 | |             rand_edge.dst, 
[INFO] [stdout] 69 | |             &mut avg_iter_time_naive, 
[INFO] [stdout] 70 | |             Some(10)
[INFO] [stdout] 71 | |         );
[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] 66 |         let _ = graph.approx_bcc_iter_tm(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `icentral_stats::*`
[INFO] [stdout]   --> src/imports.rs:13:16
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub(crate) use icentral_stats::*;
[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_edges`
[INFO] [stdout]  --> src/imports.rs:6:16
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub(crate) use icentral_edges::*;
[INFO] [stdout]   |                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `scores`
[INFO] [stdout]   --> src/test_fuad.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let scores: BetweennessScores
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_scores`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/test_fuad.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 | /         graph.insert_edge_update_bc_experimental(
[INFO] [stdout] 52 | |             &rand_edge, 
[INFO] [stdout] 53 | |             &mut bcc_stat, 
[INFO] [stdout] 54 | |             num_iter, 
[INFO] [stdout] 55 | |             num_iter
[INFO] [stdout] 56 | |         );
[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] 51 |         let _ = graph.insert_edge_update_bc_experimental(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/test_fuad.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 | /         graph.approx_bcc_iter_tm(
[INFO] [stdout] 67 | |             rand_edge.src, 
[INFO] [stdout] 68 | |             rand_edge.dst, 
[INFO] [stdout] 69 | |             &mut avg_iter_time_naive, 
[INFO] [stdout] 70 | |             Some(10)
[INFO] [stdout] 71 | |         );
[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] 66 |         let _ = graph.approx_bcc_iter_tm(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.00s
[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" "4516cab359bf64f012ce7b5f0be0709fda219c14fbdf993d9cff075794f898fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4516cab359bf64f012ce7b5f0be0709fda219c14fbdf993d9cff075794f898fd", kill_on_drop: false }`
[INFO] [stdout] 4516cab359bf64f012ce7b5f0be0709fda219c14fbdf993d9cff075794f898fd
