[INFO] fetching crate icentral-calculate-bc-mem 0.1.0...
[INFO] building icentral-calculate-bc-mem-0.1.0 against master#eb171a227f9e5de5d376b6edb56b174bc8235fb3 for pr-149937
[INFO] extracting crate icentral-calculate-bc-mem 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate icentral-calculate-bc-mem 0.1.0
[INFO] finished tweaking crates.io crate icentral-calculate-bc-mem 0.1.0
[INFO] tweaked toml for crates.io crate icentral-calculate-bc-mem 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate icentral-calculate-bc-mem 0.1.0 on toolchain eb171a227f9e5de5d376b6edb56b174bc8235fb3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eb171a227f9e5de5d376b6edb56b174bc8235fb3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate icentral-calculate-bc-mem 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" "+eb171a227f9e5de5d376b6edb56b174bc8235fb3" "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-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+eb171a227f9e5de5d376b6edb56b174bc8235fb3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d6bf0c1c12dbd8360ae032190f3253147c1812057739f73c391c074c60c48950
[INFO] running `Command { std: "docker" "start" "-a" "d6bf0c1c12dbd8360ae032190f3253147c1812057739f73c391c074c60c48950", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6bf0c1c12dbd8360ae032190f3253147c1812057739f73c391c074c60c48950", kill_on_drop: false }`
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[INFO] [stdout] d6bf0c1c12dbd8360ae032190f3253147c1812057739f73c391c074c60c48950
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+eb171a227f9e5de5d376b6edb56b174bc8235fb3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f850d4b8730775b3480a68e18365284a4c88054f37ebf9bc8ac831497c97b3b
[INFO] running `Command { std: "docker" "start" "-a" "0f850d4b8730775b3480a68e18365284a4c88054f37ebf9bc8ac831497c97b3b", kill_on_drop: false }`
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[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]    --> src/calculate_bc_mem.rs:155:27
[INFO] [stdout]     |
[INFO] [stdout] 155 |     use std::sync::{Once, ONCE_INIT};
[INFO] [stdout]     |                           ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]    --> src/calculate_bc_mem.rs:157:25
[INFO] [stdout]     |
[INFO] [stdout] 157 |     static ONCE: Once = ONCE_INIT;
[INFO] [stdout]     |                         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: replace the use of the deprecated constant
[INFO] [stdout]     |
[INFO] [stdout] 157 -     static ONCE: Once = ONCE_INIT;
[INFO] [stdout] 157 +     static ONCE: Once = Once::new();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `icentral_parents_map`
[INFO] [stdout]   --> src/imports.rs:10:16
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub(crate) use icentral_parents_map::*;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/calculate_bc_mem.rs:159:5
[INFO] [stdout]     |
[INFO] [stdout] 159 |     unsafe {
[INFO] [stdout]     |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/calculate_bc_mem.rs:193:13
[INFO] [stdout]     |
[INFO] [stdout] 193 |         let mut qq: Vec<NodeId> = default!();
[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/calculate_bc_mem.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 | /             compute_bc_increments_and_decrements_of_a_subgraph_in_component(
[INFO] [stdout] 59 | |                 bc_mem,
[INFO] [stdout] 60 | |                 &mut delta_bc_of_vertices, 
[INFO] [stdout] 61 | |                 component.clone(), 
[INFO] [stdout] ...  |
[INFO] [stdout] 64 | |                 workspace
[INFO] [stdout] 65 | |             );
[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] 58 |             let _ = compute_bc_increments_and_decrements_of_a_subgraph_in_component(
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 15s
[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" "0f850d4b8730775b3480a68e18365284a4c88054f37ebf9bc8ac831497c97b3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f850d4b8730775b3480a68e18365284a4c88054f37ebf9bc8ac831497c97b3b", kill_on_drop: false }`
[INFO] [stdout] 0f850d4b8730775b3480a68e18365284a4c88054f37ebf9bc8ac831497c97b3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+eb171a227f9e5de5d376b6edb56b174bc8235fb3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 28ebffc237ac4a7634abc67aec0749ee6dcc7b7d1cfcace27e44d346cc5d183b
[INFO] running `Command { std: "docker" "start" "-a" "28ebffc237ac4a7634abc67aec0749ee6dcc7b7d1cfcace27e44d346cc5d183b", kill_on_drop: false }`
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]    --> src/calculate_bc_mem.rs:155:27
[INFO] [stdout]     |
[INFO] [stdout] 155 |     use std::sync::{Once, ONCE_INIT};
[INFO] [stdout]     |                           ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]    --> src/calculate_bc_mem.rs:157:25
[INFO] [stdout]     |
[INFO] [stdout] 157 |     static ONCE: Once = ONCE_INIT;
[INFO] [stdout]     |                         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: replace the use of the deprecated constant
[INFO] [stdout]     |
[INFO] [stdout] 157 -     static ONCE: Once = ONCE_INIT;
[INFO] [stdout] 157 +     static ONCE: Once = Once::new();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `icentral_parents_map`
[INFO] [stdout]   --> src/imports.rs:10:16
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub(crate) use icentral_parents_map::*;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/calculate_bc_mem.rs:159:5
[INFO] [stdout]     |
[INFO] [stdout] 159 |     unsafe {
[INFO] [stdout]     |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/calculate_bc_mem.rs:193:13
[INFO] [stdout]     |
[INFO] [stdout] 193 |         let mut qq: Vec<NodeId> = default!();
[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/calculate_bc_mem.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 | /             compute_bc_increments_and_decrements_of_a_subgraph_in_component(
[INFO] [stdout] 59 | |                 bc_mem,
[INFO] [stdout] 60 | |                 &mut delta_bc_of_vertices, 
[INFO] [stdout] 61 | |                 component.clone(), 
[INFO] [stdout] ...  |
[INFO] [stdout] 64 | |                 workspace
[INFO] [stdout] 65 | |             );
[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] 58 |             let _ = compute_bc_increments_and_decrements_of_a_subgraph_in_component(
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling icentral-calculate-bc-mem v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]    --> src/calculate_bc_mem.rs:155:27
[INFO] [stdout]     |
[INFO] [stdout] 155 |     use std::sync::{Once, ONCE_INIT};
[INFO] [stdout]     |                           ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `Once::new()` function is now preferred
[INFO] [stdout]    --> src/calculate_bc_mem.rs:157:25
[INFO] [stdout]     |
[INFO] [stdout] 157 |     static ONCE: Once = ONCE_INIT;
[INFO] [stdout]     |                         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: replace the use of the deprecated constant
[INFO] [stdout]     |
[INFO] [stdout] 157 -     static ONCE: Once = ONCE_INIT;
[INFO] [stdout] 157 +     static ONCE: Once = Once::new();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `icentral_parents_map`
[INFO] [stdout]   --> src/imports.rs:10:16
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub(crate) use icentral_parents_map::*;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/calculate_bc_mem.rs:159:5
[INFO] [stdout]     |
[INFO] [stdout] 159 |     unsafe {
[INFO] [stdout]     |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/calculate_bc_mem.rs:193:13
[INFO] [stdout]     |
[INFO] [stdout] 193 |         let mut qq: Vec<NodeId> = default!();
[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/calculate_bc_mem.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 | /             compute_bc_increments_and_decrements_of_a_subgraph_in_component(
[INFO] [stdout] 59 | |                 bc_mem,
[INFO] [stdout] 60 | |                 &mut delta_bc_of_vertices, 
[INFO] [stdout] 61 | |                 component.clone(), 
[INFO] [stdout] ...  |
[INFO] [stdout] 64 | |                 workspace
[INFO] [stdout] 65 | |             );
[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] 58 |             let _ = compute_bc_increments_and_decrements_of_a_subgraph_in_component(
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.17s
[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" "28ebffc237ac4a7634abc67aec0749ee6dcc7b7d1cfcace27e44d346cc5d183b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28ebffc237ac4a7634abc67aec0749ee6dcc7b7d1cfcace27e44d346cc5d183b", kill_on_drop: false }`
[INFO] [stdout] 28ebffc237ac4a7634abc67aec0749ee6dcc7b7d1cfcace27e44d346cc5d183b
