[INFO] cloning repository https://github.com/keeslinp/decision_tree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/keeslinp/decision_tree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeeslinp%2Fdecision_tree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeeslinp%2Fdecision_tree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4b4d8633cf8d7560525c874ade61eb67b1e8e651
[INFO] testing keeslinp/decision_tree against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeeslinp%2Fdecision_tree" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/keeslinp/decision_tree on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/keeslinp/decision_tree
[INFO] finished tweaking git repo https://github.com/keeslinp/decision_tree
[INFO] tweaked toml for git repo https://github.com/keeslinp/decision_tree written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/keeslinp/decision_tree already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.49
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b2a509604f60e76f7598a240c865b3bdd2c6b3ba6abaaeb4119d20217abeda9d
[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" "b2a509604f60e76f7598a240c865b3bdd2c6b3ba6abaaeb4119d20217abeda9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b2a509604f60e76f7598a240c865b3bdd2c6b3ba6abaaeb4119d20217abeda9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2a509604f60e76f7598a240c865b3bdd2c6b3ba6abaaeb4119d20217abeda9d", kill_on_drop: false }`
[INFO] [stdout] b2a509604f60e76f7598a240c865b3bdd2c6b3ba6abaaeb4119d20217abeda9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e758d0655c49920382b7521697f8253b573f77f885d137abbfbc7ca30d2dfefe
[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" "e758d0655c49920382b7521697f8253b573f77f885d137abbfbc7ca30d2dfefe", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling regex v1.1.2
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling rand_jitter v0.1.3
[INFO] [stderr]    Compiling regex-syntax v0.6.5
[INFO] [stderr]    Compiling rand_os v0.1.2
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling decision_tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `test_accuracy`
[INFO] [stdout]    --> src/decision.rs:146:17
[INFO] [stdout]     |
[INFO] [stdout] 146 |             let test_accuracy = self.test_set(training);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_test_accuracy`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `count_pruned_nodes`
[INFO] [stdout]    --> src/decision.rs:288:12
[INFO] [stdout]     |
[INFO] [stdout] 288 |     pub fn count_pruned_nodes(&self) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.97s
[INFO] running `Command { std: "docker" "inspect" "e758d0655c49920382b7521697f8253b573f77f885d137abbfbc7ca30d2dfefe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e758d0655c49920382b7521697f8253b573f77f885d137abbfbc7ca30d2dfefe", kill_on_drop: false }`
[INFO] [stdout] e758d0655c49920382b7521697f8253b573f77f885d137abbfbc7ca30d2dfefe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", 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] e32f67467e7ff6b9d06b05a5d4ac3abaedecdd77cfca65939b1b86ac9ddebf6c
[INFO] running `Command { std: "docker" "start" "-a" "e32f67467e7ff6b9d06b05a5d4ac3abaedecdd77cfca65939b1b86ac9ddebf6c", kill_on_drop: false }`
[INFO] [stderr]    Compiling decision_tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `test_accuracy`
[INFO] [stdout]    --> src/decision.rs:146:17
[INFO] [stdout]     |
[INFO] [stdout] 146 |             let test_accuracy = self.test_set(training);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_test_accuracy`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `count_pruned_nodes`
[INFO] [stdout]    --> src/decision.rs:288:12
[INFO] [stdout]     |
[INFO] [stdout] 288 |     pub fn count_pruned_nodes(&self) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.92s
[INFO] running `Command { std: "docker" "inspect" "e32f67467e7ff6b9d06b05a5d4ac3abaedecdd77cfca65939b1b86ac9ddebf6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e32f67467e7ff6b9d06b05a5d4ac3abaedecdd77cfca65939b1b86ac9ddebf6c", kill_on_drop: false }`
[INFO] [stdout] e32f67467e7ff6b9d06b05a5d4ac3abaedecdd77cfca65939b1b86ac9ddebf6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 06022086d3f90f56967fe1767a667ad8eeab1bbde009b914910af200b1bdece9
[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" "06022086d3f90f56967fe1767a667ad8eeab1bbde009b914910af200b1bdece9", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `test_accuracy`
[INFO] [stderr]    --> src/decision.rs:146:17
[INFO] [stderr]     |
[INFO] [stderr] 146 |             let test_accuracy = self.test_set(training);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_test_accuracy`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `count_pruned_nodes`
[INFO] [stderr]    --> src/decision.rs:288:12
[INFO] [stderr]     |
[INFO] [stderr] 288 |     pub fn count_pruned_nodes(&self) -> usize {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/decision_tree-23c6dd1809b1e38b)
[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" "06022086d3f90f56967fe1767a667ad8eeab1bbde009b914910af200b1bdece9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06022086d3f90f56967fe1767a667ad8eeab1bbde009b914910af200b1bdece9", kill_on_drop: false }`
[INFO] [stdout] 06022086d3f90f56967fe1767a667ad8eeab1bbde009b914910af200b1bdece9