[INFO] fetching crate algorithms-edu 0.1.0...
[INFO] testing algorithms-edu-0.1.0 against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] extracting crate algorithms-edu 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate algorithms-edu 0.1.0 on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate algorithms-edu 0.1.0
[INFO] finished tweaking crates.io crate algorithms-edu 0.1.0
[INFO] tweaked toml for crates.io crate algorithms-edu 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc6707aaac94fdbe28123e4abdbe198596cf8b91bc2ae99585a57210273ae00b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fc6707aaac94fdbe28123e4abdbe198596cf8b91bc2ae99585a57210273ae00b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc6707aaac94fdbe28123e4abdbe198596cf8b91bc2ae99585a57210273ae00b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc6707aaac94fdbe28123e4abdbe198596cf8b91bc2ae99585a57210273ae00b", kill_on_drop: false }`
[INFO] [stdout] fc6707aaac94fdbe28123e4abdbe198596cf8b91bc2ae99585a57210273ae00b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 39f8c613aa0ec453196662566fa292a7161041984415186787e216429a8b69db
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "39f8c613aa0ec453196662566fa292a7161041984415186787e216429a8b69db", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling algorithms-edu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `FixedCapacityQueue`
[INFO] [stdout]  --> src/graph/bfs/iterative.rs:1:37
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::data_structures::queue::{FixedCapacityQueue, Queue};
[INFO] [stdout]   |                                     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::VecDeque`
[INFO] [stdout]  --> src/graph/bfs/iterative.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::collections::VecDeque;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `format_path`
[INFO] [stdout]   --> src/graph/bfs/iterative.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn format_path(path: &Vec<usize>) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dfs`
[INFO] [stdout]  --> src/graph/dfs/iterative.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn dfs(&self, start: usize) -> usize {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dfs`
[INFO] [stdout]   --> src/graph/dfs/iterative.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 73 |     fn dfs(&self, start: usize) -> usize {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.98s
[INFO] running `Command { std: "docker" "inspect" "39f8c613aa0ec453196662566fa292a7161041984415186787e216429a8b69db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39f8c613aa0ec453196662566fa292a7161041984415186787e216429a8b69db", kill_on_drop: false }`
[INFO] [stdout] 39f8c613aa0ec453196662566fa292a7161041984415186787e216429a8b69db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e65dd918c5b3f6c40b788ee2d9d84140137bf224fbd3081b34e6c5a50243d85b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e65dd918c5b3f6c40b788ee2d9d84140137bf224fbd3081b34e6c5a50243d85b", kill_on_drop: false }`
[INFO] [stderr]    Compiling algorithms-edu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `FixedCapacityQueue`
[INFO] [stdout]  --> src/graph/bfs/iterative.rs:1:37
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::data_structures::queue::{FixedCapacityQueue, Queue};
[INFO] [stdout]   |                                     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::VecDeque`
[INFO] [stdout]  --> src/graph/bfs/iterative.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::collections::VecDeque;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `format_path`
[INFO] [stdout]   --> src/graph/bfs/iterative.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn format_path(path: &Vec<usize>) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dfs`
[INFO] [stdout]  --> src/graph/dfs/iterative.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn dfs(&self, start: usize) -> usize {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dfs`
[INFO] [stdout]   --> src/graph/dfs/iterative.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 73 |     fn dfs(&self, start: usize) -> usize {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dfs`
[INFO] [stdout]   --> src/graph/dfs/iterative.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 73 |     fn dfs(&self, start: usize) -> usize {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.89s
[INFO] running `Command { std: "docker" "inspect" "e65dd918c5b3f6c40b788ee2d9d84140137bf224fbd3081b34e6c5a50243d85b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e65dd918c5b3f6c40b788ee2d9d84140137bf224fbd3081b34e6c5a50243d85b", kill_on_drop: false }`
[INFO] [stdout] e65dd918c5b3f6c40b788ee2d9d84140137bf224fbd3081b34e6c5a50243d85b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fd669f7f556191477c47c3b5626e1f0c307ec0dedcedce98bd9cbfcfd350c00e
[INFO] running `Command { std: "docker" "start" "-a" "fd669f7f556191477c47c3b5626e1f0c307ec0dedcedce98bd9cbfcfd350c00e", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `FixedCapacityQueue`
[INFO] [stderr]  --> src/graph/bfs/iterative.rs:1:37
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::data_structures::queue::{FixedCapacityQueue, Queue};
[INFO] [stderr]   |                                     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::VecDeque`
[INFO] [stderr]  --> src/graph/bfs/iterative.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::collections::VecDeque;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `format_path`
[INFO] [stderr]   --> src/graph/bfs/iterative.rs:55:4
[INFO] [stderr]    |
[INFO] [stderr] 55 | fn format_path(path: &Vec<usize>) -> String {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `dfs`
[INFO] [stderr]  --> src/graph/dfs/iterative.rs:7:8
[INFO] [stderr]   |
[INFO] [stderr] 7 |     fn dfs(&self, start: usize) -> usize {
[INFO] [stderr]   |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `dfs`
[INFO] [stderr]   --> src/graph/dfs/iterative.rs:73:8
[INFO] [stderr]    |
[INFO] [stderr] 73 |     fn dfs(&self, start: usize) -> usize {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `dfs`
[INFO] [stderr]   --> src/graph/dfs/iterative.rs:73:8
[INFO] [stderr]    |
[INFO] [stderr] 73 |     fn dfs(&self, start: usize) -> usize {
[INFO] [stderr]    |        ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/algorithms_edu-df6c0b87172dcc82
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test graph::dfs::iterative::tests::test_dfs_iterative ... ok
[INFO] [stdout] test graph::tree::height1::tests::test_tree_height1 ... ok
[INFO] [stdout] test graph::tree::center::tests::test_tree_center ... ok
[INFO] [stdout] test graph::tree::height::tests::test_tree_height ... ok
[INFO] [stdout] test graph::tree::isomorphism::tests::test_tree_isomorphism ... ok
[INFO] [stdout] test graph::tree::isomorphism::tests::test_tree_encoding ... ok
[INFO] [stdout] test graph::tree::rooting1::tests::test_tree_rooting ... ok
[INFO] [stdout] test math::gcd::tests::test_gcd ... ok
[INFO] [stdout] test graph::tree::rooting::tests::test_tree_rooting ... ok
[INFO] [stdout] test graph::tree::sum::tests::test_tree_sum ... ok
[INFO] [stdout] test math::lcm::tests::test_lcm ... ok
[INFO] [stdout] test graph::bfs::iterative::tests::test_bfs_adjacency_list_iterative ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests algorithms-edu
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fd669f7f556191477c47c3b5626e1f0c307ec0dedcedce98bd9cbfcfd350c00e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd669f7f556191477c47c3b5626e1f0c307ec0dedcedce98bd9cbfcfd350c00e", kill_on_drop: false }`
[INFO] [stdout] fd669f7f556191477c47c3b5626e1f0c307ec0dedcedce98bd9cbfcfd350c00e