[INFO] fetching crate better_btree 0.2.3...
[INFO] testing better_btree-0.2.3 against 1.54.0 for beta-1.55-1
[INFO] extracting crate better_btree 0.2.3 into /workspace/builds/worker-58/source
[INFO] validating manifest of crates.io crate better_btree 0.2.3 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate better_btree 0.2.3
[INFO] finished tweaking crates.io crate better_btree 0.2.3
[INFO] tweaked toml for crates.io crate better_btree 0.2.3 written to /workspace/builds/worker-58/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 88c8d4b72a376c81bfd1f6ce93c9843d0ebbe2be0d54d8b8931f326cabe4a71d
[INFO] running `Command { std: "docker" "start" "-a" "88c8d4b72a376c81bfd1f6ce93c9843d0ebbe2be0d54d8b8931f326cabe4a71d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88c8d4b72a376c81bfd1f6ce93c9843d0ebbe2be0d54d8b8931f326cabe4a71d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88c8d4b72a376c81bfd1f6ce93c9843d0ebbe2be0d54d8b8931f326cabe4a71d", kill_on_drop: false }`
[INFO] [stdout] 88c8d4b72a376c81bfd1f6ce93c9843d0ebbe2be0d54d8b8931f326cabe4a71d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c584b103c411bbe4abcad3b4a55eeccc189968f5f93d8456b8a984840a20dcf7
[INFO] running `Command { std: "docker" "start" "-a" "c584b103c411bbe4abcad3b4a55eeccc189968f5f93d8456b8a984840a20dcf7", kill_on_drop: false }`
[INFO] [stderr]    Compiling better_btree v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `is_internal`
[INFO] [stdout]    --> src/node.rs:352:9
[INFO] [stdout]     |
[INFO] [stdout] 352 |     pub fn is_internal(&self) -> bool { self.data.is_internal() }
[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 dev [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "c584b103c411bbe4abcad3b4a55eeccc189968f5f93d8456b8a984840a20dcf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c584b103c411bbe4abcad3b4a55eeccc189968f5f93d8456b8a984840a20dcf7", kill_on_drop: false }`
[INFO] [stdout] c584b103c411bbe4abcad3b4a55eeccc189968f5f93d8456b8a984840a20dcf7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 727281d0f72271622fe18c140ae41db09655234e058ed4abb16389ad0f811a77
[INFO] running `Command { std: "docker" "start" "-a" "727281d0f72271622fe18c140ae41db09655234e058ed4abb16389ad0f811a77", kill_on_drop: false }`
[INFO] [stdout] warning: associated function is never used: `is_internal`
[INFO] [stdout]    --> src/node.rs:352:9
[INFO] [stdout]     |
[INFO] [stdout] 352 |     pub fn is_internal(&self) -> bool { self.data.is_internal() }
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling better_btree v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_internal`
[INFO] [stdout]    --> src/node.rs:352:9
[INFO] [stdout]     |
[INFO] [stdout] 352 |     pub fn is_internal(&self) -> bool { self.data.is_internal() }
[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 0.67s
[INFO] running `Command { std: "docker" "inspect" "727281d0f72271622fe18c140ae41db09655234e058ed4abb16389ad0f811a77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "727281d0f72271622fe18c140ae41db09655234e058ed4abb16389ad0f811a77", kill_on_drop: false }`
[INFO] [stdout] 727281d0f72271622fe18c140ae41db09655234e058ed4abb16389ad0f811a77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] faa4e114e9d76e1d7c1c13b9f4105740087741d18b770c0f6b48cffa9ab1b815
[INFO] running `Command { std: "docker" "start" "-a" "faa4e114e9d76e1d7c1c13b9f4105740087741d18b770c0f6b48cffa9ab1b815", kill_on_drop: false }`
[INFO] [stderr] warning: associated function is never used: `is_internal`
[INFO] [stderr]    --> src/node.rs:352:9
[INFO] [stderr]     |
[INFO] [stderr] 352 |     pub fn is_internal(&self) -> bool { self.data.is_internal() }
[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] warning: associated function is never used: `is_internal`
[INFO] [stderr]    --> src/node.rs:352:9
[INFO] [stderr]     |
[INFO] [stderr] 352 |     pub fn is_internal(&self) -> bool { self.data.is_internal() }
[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 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/better_btree-4eb0d8645ae388dc)
[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] [stderr]    Doc-tests better_btree
[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" "faa4e114e9d76e1d7c1c13b9f4105740087741d18b770c0f6b48cffa9ab1b815", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "faa4e114e9d76e1d7c1c13b9f4105740087741d18b770c0f6b48cffa9ab1b815", kill_on_drop: false }`
[INFO] [stdout] faa4e114e9d76e1d7c1c13b9f4105740087741d18b770c0f6b48cffa9ab1b815
