[INFO] fetching crate fuzzy-tree 0.1.2...
[INFO] testing fuzzy-tree-0.1.2 against try#eafdee2dfae8c2233b74f98b123308be7ccefcc6 for pr-79296
[INFO] extracting crate fuzzy-tree 0.1.2 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate fuzzy-tree 0.1.2 on toolchain eafdee2dfae8c2233b74f98b123308be7ccefcc6
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fuzzy-tree 0.1.2
[INFO] finished tweaking crates.io crate fuzzy-tree 0.1.2
[INFO] tweaked toml for crates.io crate fuzzy-tree 0.1.2 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate fuzzy-tree 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bf378caa605683db790e59aad3290b8204c2aea4f0da8a86b9225b4962e6fd8a
[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" "bf378caa605683db790e59aad3290b8204c2aea4f0da8a86b9225b4962e6fd8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf378caa605683db790e59aad3290b8204c2aea4f0da8a86b9225b4962e6fd8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf378caa605683db790e59aad3290b8204c2aea4f0da8a86b9225b4962e6fd8a", kill_on_drop: false }`
[INFO] [stdout] bf378caa605683db790e59aad3290b8204c2aea4f0da8a86b9225b4962e6fd8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 42a56dbfaafc1c7214dc34dd9ac3747e84d556b7a2cf44e6020e45ec1fc82e6c
[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" "42a56dbfaafc1c7214dc34dd9ac3747e84d556b7a2cf44e6020e45ec1fc82e6c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.36
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling termion v1.5.5
[INFO] [stderr]    Compiling backtrace v0.3.46
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling failure v0.1.7
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling regex v1.3.6
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling fuzzy-tree v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.84s
[INFO] running `Command { std: "docker" "inspect" "42a56dbfaafc1c7214dc34dd9ac3747e84d556b7a2cf44e6020e45ec1fc82e6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42a56dbfaafc1c7214dc34dd9ac3747e84d556b7a2cf44e6020e45ec1fc82e6c", kill_on_drop: false }`
[INFO] [stdout] 42a56dbfaafc1c7214dc34dd9ac3747e84d556b7a2cf44e6020e45ec1fc82e6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c968423a3a416f74565c19bcc1ad5f730776ebd3525d0ead6213845703df75c
[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" "1c968423a3a416f74565c19bcc1ad5f730776ebd3525d0ead6213845703df75c", kill_on_drop: false }`
[INFO] [stderr]    Compiling fuzzy-tree v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tree.rs:525:7
[INFO] [stdout]     |
[INFO] [stdout] 525 |         let mut paths = create_test_paths();
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` 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 3.13s
[INFO] running `Command { std: "docker" "inspect" "1c968423a3a416f74565c19bcc1ad5f730776ebd3525d0ead6213845703df75c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c968423a3a416f74565c19bcc1ad5f730776ebd3525d0ead6213845703df75c", kill_on_drop: false }`
[INFO] [stdout] 1c968423a3a416f74565c19bcc1ad5f730776ebd3525d0ead6213845703df75c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "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] e8772dfdacd6733dc217e3ff3cbc4b2517e6b8bc0b7125567b8b2d43b8ac886a
[INFO] running `Command { std: "docker" "start" "-a" "e8772dfdacd6733dc217e3ff3cbc4b2517e6b8bc0b7125567b8b2d43b8ac886a", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stdout] running 16 tests
[INFO] [stderr]    --> src/tree.rs:525:7
[INFO] [stdout] test path::test::basename_correct ... ok
[INFO] [stderr]     |
[INFO] [stdout] test path::test::sorting_is_correct ... ok
[INFO] [stderr] 525 |         let mut paths = create_test_paths();
[INFO] [stdout] test tree::test::correct_lines_after_filtering ... ok
[INFO] [stderr]     |             ----^^^^^
[INFO] [stdout] test path::test::is_child_of_correctness ... ok
[INFO] [stderr]     |             |
[INFO] [stdout] test tree::test::tree_string_correct ... ok
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stdout] test tree::test::create_tree_correct ... ok
[INFO] [stderr]     |
[INFO] [stdout] test tree::test::correct_tree_string ... ok
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/fztree-b6d7ee2a4fa9444e
[INFO] [stdout] test tree::test::update_matched_test ... ok
[INFO] [stdout] test tree::test::reducing_patterns ... ok
[INFO] [stdout] test tree::test::match_paths_sets_matched_field_correctly ... ok
[INFO] [stdout] test path::test::len_correct ... ok
[INFO] [stdout] test tree::test::merging_indices_works ... ok
[INFO] [stdout] test tree::test::match_paths_colors_basename ... ok
[INFO] [stdout] test tree::test::adjacent_matches_are_colored_correctly ... ok
[INFO] [stdout] test tree::test::correct_n_descendants ... ok
[INFO] [stdout] test tree::test::correct_n_matched_after_matching_with_empty_string ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e8772dfdacd6733dc217e3ff3cbc4b2517e6b8bc0b7125567b8b2d43b8ac886a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8772dfdacd6733dc217e3ff3cbc4b2517e6b8bc0b7125567b8b2d43b8ac886a", kill_on_drop: false }`
[INFO] [stdout] e8772dfdacd6733dc217e3ff3cbc4b2517e6b8bc0b7125567b8b2d43b8ac886a