[INFO] cloning repository https://github.com/someguynamedmatt/btree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/someguynamedmatt/btree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsomeguynamedmatt%2Fbtree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsomeguynamedmatt%2Fbtree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cf3b4086cf44415a190531cc12741fcd66bffa79
[INFO] testing someguynamedmatt/btree against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsomeguynamedmatt%2Fbtree" "/workspace/builds/worker-63/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-63/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/someguynamedmatt/btree on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/someguynamedmatt/btree
[INFO] finished tweaking git repo https://github.com/someguynamedmatt/btree
[INFO] tweaked toml for git repo https://github.com/someguynamedmatt/btree written to /workspace/builds/worker-63/source/Cargo.toml
[INFO] crate git repo https://github.com/someguynamedmatt/btree already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c9d1e55ad4a5252336e07da6181d072ab38da00085da0abf8fa5f974d1d0590b
[INFO] running `Command { std: "docker" "start" "-a" "c9d1e55ad4a5252336e07da6181d072ab38da00085da0abf8fa5f974d1d0590b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9d1e55ad4a5252336e07da6181d072ab38da00085da0abf8fa5f974d1d0590b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9d1e55ad4a5252336e07da6181d072ab38da00085da0abf8fa5f974d1d0590b", kill_on_drop: false }`
[INFO] [stdout] c9d1e55ad4a5252336e07da6181d072ab38da00085da0abf8fa5f974d1d0590b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f0cf906288e0b21ac49a331101d870f9e96ae5aa78cca01f17e9c85f520d7925
[INFO] running `Command { std: "docker" "start" "-a" "f0cf906288e0b21ac49a331101d870f9e96ae5aa78cca01f17e9c85f520d7925", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling btree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `child_nodes`
[INFO] [stdout]  --> src/node.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     child_nodes: Vec<Box<Node<K>>>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `max_children`
[INFO] [stdout]  --> src/node.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     max_children: u32,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.94s
[INFO] running `Command { std: "docker" "inspect" "f0cf906288e0b21ac49a331101d870f9e96ae5aa78cca01f17e9c85f520d7925", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0cf906288e0b21ac49a331101d870f9e96ae5aa78cca01f17e9c85f520d7925", kill_on_drop: false }`
[INFO] [stdout] f0cf906288e0b21ac49a331101d870f9e96ae5aa78cca01f17e9c85f520d7925
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b65bb3d9c9618e34eda11897ea121310acbee51a2fd17a6fdcb487117919af2d
[INFO] running `Command { std: "docker" "start" "-a" "b65bb3d9c9618e34eda11897ea121310acbee51a2fd17a6fdcb487117919af2d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: field is never read: `child_nodes`
[INFO] [stdout]  --> src/node.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     child_nodes: Vec<Box<Node<K>>>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling btree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `max_children`
[INFO] [stdout]  --> src/node.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     max_children: u32,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `child_nodes`
[INFO] [stdout]  --> src/node.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     child_nodes: Vec<Box<Node<K>>>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `max_children`
[INFO] [stdout]  --> src/node.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     max_children: u32,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.13s
[INFO] running `Command { std: "docker" "inspect" "b65bb3d9c9618e34eda11897ea121310acbee51a2fd17a6fdcb487117919af2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b65bb3d9c9618e34eda11897ea121310acbee51a2fd17a6fdcb487117919af2d", kill_on_drop: false }`
[INFO] [stdout] b65bb3d9c9618e34eda11897ea121310acbee51a2fd17a6fdcb487117919af2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3de36a66879d97750de7da04098aee3ddc34250b348f2bb2ef58e1cb657c40a6
[INFO] running `Command { std: "docker" "start" "-a" "3de36a66879d97750de7da04098aee3ddc34250b348f2bb2ef58e1cb657c40a6", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `child_nodes`
[INFO] [stderr]  --> src/node.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     child_nodes: Vec<Box<Node<K>>>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `max_children`
[INFO] [stderr]  --> src/node.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     max_children: u32,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `btree` (lib) generated 2 warnings
[INFO] [stderr] warning: `btree` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/btree-776b92ac103a94a9)
[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]      Running unittests (/opt/rustwide/target/debug/deps/btree-4cf9f4a1838ff068)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests btree
[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] [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" "3de36a66879d97750de7da04098aee3ddc34250b348f2bb2ef58e1cb657c40a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3de36a66879d97750de7da04098aee3ddc34250b348f2bb2ef58e1cb657c40a6", kill_on_drop: false }`
[INFO] [stdout] 3de36a66879d97750de7da04098aee3ddc34250b348f2bb2ef58e1cb657c40a6