[INFO] fetching crate ntree 0.1.0...
[INFO] testing ntree-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate ntree 0.1.0 into /workspace/builds/worker-56/source
[INFO] validating manifest of crates.io crate ntree 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ntree 0.1.0
[INFO] finished tweaking crates.io crate ntree 0.1.0
[INFO] tweaked toml for crates.io crate ntree 0.1.0 written to /workspace/builds/worker-56/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71c8bed8268b5765851ef01eff6c744836700155ffcdba18b9c4d1a31cd9132e
[INFO] running `Command { std: "docker" "start" "-a" "71c8bed8268b5765851ef01eff6c744836700155ffcdba18b9c4d1a31cd9132e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71c8bed8268b5765851ef01eff6c744836700155ffcdba18b9c4d1a31cd9132e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71c8bed8268b5765851ef01eff6c744836700155ffcdba18b9c4d1a31cd9132e", kill_on_drop: false }`
[INFO] [stdout] 71c8bed8268b5765851ef01eff6c744836700155ffcdba18b9c4d1a31cd9132e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6505d3ce28085223705ff425e7144a96b8cf027e11d847ea249bde88df3917f
[INFO] running `Command { std: "docker" "start" "-a" "b6505d3ce28085223705ff425e7144a96b8cf027e11d847ea249bde88df3917f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling ref_slice v1.2.1
[INFO] [stderr]    Compiling ntree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/lib.rs:21:24
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn contains(&self, &P) -> bool;
[INFO] [stdout]    |                        ^^ help: try naming the parameter or explicitly ignoring it: `_: &P`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused label
[INFO] [stdout]    --> src/lib.rs:202:17
[INFO] [stdout]     |
[INFO] [stdout] 202 |                 'children: loop {
[INFO] [stdout]     |                 ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_labels)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `ref_slice::ref_slice`: Similar method was added to std and stabilized in rust 1.28.0. Use `core::slice::from_ref` instead.
[INFO] [stdout]    --> src/lib.rs:113:36
[INFO] [stdout]     |
[INFO] [stdout] 113 |             stack: vec![ref_slice::ref_slice(self).iter()],
[INFO] [stdout]     |                                    ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "b6505d3ce28085223705ff425e7144a96b8cf027e11d847ea249bde88df3917f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6505d3ce28085223705ff425e7144a96b8cf027e11d847ea249bde88df3917f", kill_on_drop: false }`
[INFO] [stdout] b6505d3ce28085223705ff425e7144a96b8cf027e11d847ea249bde88df3917f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 529ffb1378df639fc75cd3493267260185524373257cb171dba714b3c8a35615
[INFO] running `Command { std: "docker" "start" "-a" "529ffb1378df639fc75cd3493267260185524373257cb171dba714b3c8a35615", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling ntree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/lib.rs:21:24
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn contains(&self, &P) -> bool;
[INFO] [stdout]    |                        ^^ help: try naming the parameter or explicitly ignoring it: `_: &P`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused label
[INFO] [stdout]    --> src/lib.rs:202:17
[INFO] [stdout]     |
[INFO] [stdout] 202 |                 'children: loop {
[INFO] [stdout]     |                 ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_labels)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `ref_slice::ref_slice`: Similar method was added to std and stabilized in rust 1.28.0. Use `core::slice::from_ref` instead.
[INFO] [stdout]    --> src/lib.rs:113:36
[INFO] [stdout]     |
[INFO] [stdout] 113 |             stack: vec![ref_slice::ref_slice(self).iter()],
[INFO] [stdout]     |                                    ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]   --> src/lib.rs:21:24
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn contains(&self, &P) -> bool;
[INFO] [stdout]    |                        ^^ help: try naming the parameter or explicitly ignoring it: `_: &P`
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:2:24
[INFO] [stdout]    |
[INFO] [stdout] 2  | #![cfg_attr(test, deny(warnings))]
[INFO] [stdout]    |                        ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` implied by `#[warn(warnings)]`
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused label
[INFO] [stdout]    --> src/lib.rs:202:17
[INFO] [stdout]     |
[INFO] [stdout] 202 |                 'children: loop {
[INFO] [stdout]     |                 ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:2:24
[INFO] [stdout]     |
[INFO] [stdout] 2   | #![cfg_attr(test, deny(warnings))]
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     = note: `#[warn(unused_labels)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `ref_slice::ref_slice`: Similar method was added to std and stabilized in rust 1.28.0. Use `core::slice::from_ref` instead.
[INFO] [stdout]    --> src/lib.rs:113:36
[INFO] [stdout]     |
[INFO] [stdout] 113 |             stack: vec![ref_slice::ref_slice(self).iter()],
[INFO] [stdout]     |                                    ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:2:24
[INFO] [stdout]     |
[INFO] [stdout] 2   | #![cfg_attr(test, deny(warnings))]
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Region`
[INFO] [stdout]   --> src/test.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 | use {NTree, Region};
[INFO] [stdout]    |             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:2:24
[INFO] [stdout]    |
[INFO] [stdout] 2  | #![cfg_attr(test, deny(warnings))]
[INFO] [stdout]    |                        ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(unused_imports)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "529ffb1378df639fc75cd3493267260185524373257cb171dba714b3c8a35615", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "529ffb1378df639fc75cd3493267260185524373257cb171dba714b3c8a35615", kill_on_drop: false }`
[INFO] [stdout] 529ffb1378df639fc75cd3493267260185524373257cb171dba714b3c8a35615
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b42bda572840124728c78eae18514e9e69b01cc9849ada5ed84454893eeba275
[INFO] running `Command { std: "docker" "start" "-a" "b42bda572840124728c78eae18514e9e69b01cc9849ada5ed84454893eeba275", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stderr]   --> src/lib.rs:21:24
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn contains(&self, &P) -> bool;
[INFO] [stderr]    |                        ^^ help: try naming the parameter or explicitly ignoring it: `_: &P`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: unused label
[INFO] [stderr]    --> src/lib.rs:202:17
[INFO] [stderr]     |
[INFO] [stderr] 202 |                 'children: loop {
[INFO] [stderr]     |                 ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_labels)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `ref_slice::ref_slice`: Similar method was added to std and stabilized in rust 1.28.0. Use `core::slice::from_ref` instead.
[INFO] [stderr]    --> src/lib.rs:113:36
[INFO] [stderr]     |
[INFO] [stderr] 113 |             stack: vec![ref_slice::ref_slice(self).iter()],
[INFO] [stderr]     |                                    ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `ntree` (lib) generated 3 warnings
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stderr]   --> src/lib.rs:21:24
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn contains(&self, &P) -> bool;
[INFO] [stderr]    |                        ^^ help: try naming the parameter or explicitly ignoring it: `_: &P`
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:2:24
[INFO] [stderr]    |
[INFO] [stderr] 2  | #![cfg_attr(test, deny(warnings))]
[INFO] [stderr]    |                        ^^^^^^^^
[INFO] [stderr]    = note: `#[warn(anonymous_parameters)]` implied by `#[warn(warnings)]`
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: unused label
[INFO] [stderr]    --> src/lib.rs:202:17
[INFO] [stderr]     |
[INFO] [stderr] 202 |                 'children: loop {
[INFO] [stderr]     |                 ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]    --> src/lib.rs:2:24
[INFO] [stderr]     |
[INFO] [stderr] 2   | #![cfg_attr(test, deny(warnings))]
[INFO] [stderr]     |                        ^^^^^^^^
[INFO] [stderr]     = note: `#[warn(unused_labels)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `ref_slice::ref_slice`: Similar method was added to std and stabilized in rust 1.28.0. Use `core::slice::from_ref` instead.
[INFO] [stderr]    --> src/lib.rs:113:36
[INFO] [stderr]     |
[INFO] [stderr] 113 |             stack: vec![ref_slice::ref_slice(self).iter()],
[INFO] [stderr]     |                                    ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]    --> src/lib.rs:2:24
[INFO] [stderr]     |
[INFO] [stderr] 2   | #![cfg_attr(test, deny(warnings))]
[INFO] [stderr]     |                        ^^^^^^^^
[INFO] [stderr]     = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Region`
[INFO] [stderr]   --> src/test.rs:14:13
[INFO] [stderr]    |
[INFO] [stderr] 14 | use {NTree, Region};
[INFO] [stderr]    |             ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:2:24
[INFO] [stderr]    |
[INFO] [stderr] 2  | #![cfg_attr(test, deny(warnings))]
[INFO] [stderr]    |                        ^^^^^^^^
[INFO] [stderr]    = note: `#[warn(unused_imports)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: `ntree` (lib test) generated 4 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.24s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ntree-b1429cadb74b3a66)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test test::fixtures::test_overlaps ... ok
[INFO] [stdout] test test::fixtures::test_split ... ok
[INFO] [stdout] test test::test_contains ... ok
[INFO] [stdout] test test::fixtures::test_contains ... ok
[INFO] [stdout] test test::test_insert ... ok
[INFO] [stdout] test test::test_nearby ... ok
[INFO] [stderr]    Doc-tests ntree
[INFO] [stdout] test test::test_range_query ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[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" "b42bda572840124728c78eae18514e9e69b01cc9849ada5ed84454893eeba275", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b42bda572840124728c78eae18514e9e69b01cc9849ada5ed84454893eeba275", kill_on_drop: false }`
[INFO] [stdout] b42bda572840124728c78eae18514e9e69b01cc9849ada5ed84454893eeba275