[INFO] fetching crate xgboost 0.1.4... [INFO] checking xgboost-0.1.4 against try#b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f for pr-76104 [INFO] extracting crate xgboost 0.1.4 into /workspace/builds/worker-7/source [INFO] validating manifest of crates.io crate xgboost 0.1.4 on toolchain b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate xgboost 0.1.4 [INFO] finished tweaking crates.io crate xgboost 0.1.4 [INFO] tweaked toml for crates.io crate xgboost 0.1.4 written to /workspace/builds/worker-7/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded derive_builder v0.5.1 [INFO] [stderr] Downloaded xgboost-sys v0.1.2 [INFO] [stderr] Downloaded derive_builder_core v0.2.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a4bb2f79bd83886f7de59c3fcf161fec1e7169247bb05f6c5e580c41f4aa2c1e [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" "a4bb2f79bd83886f7de59c3fcf161fec1e7169247bb05f6c5e580c41f4aa2c1e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a4bb2f79bd83886f7de59c3fcf161fec1e7169247bb05f6c5e580c41f4aa2c1e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a4bb2f79bd83886f7de59c3fcf161fec1e7169247bb05f6c5e580c41f4aa2c1e", kill_on_drop: false }` [INFO] [stdout] a4bb2f79bd83886f7de59c3fcf161fec1e7169247bb05f6c5e580c41f4aa2c1e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "check" "--frozen" "--all" "--all-targets" "--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] 079a425b0080bf16aaba8e8b649c2aa7bf1cddb802a0d4d5be05170910c9a11e [INFO] running `Command { std: "docker" "start" "-a" "079a425b0080bf16aaba8e8b649c2aa7bf1cddb802a0d4d5be05170910c9a11e", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling glob v0.2.11 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling bindgen v0.36.1 [INFO] [stderr] Compiling derive_builder v0.5.1 [INFO] [stderr] Compiling thread_local v0.3.6 [INFO] [stderr] Compiling proc-macro2 v0.3.5 [INFO] [stderr] Compiling libloading v0.5.2 [INFO] [stderr] Checking libc v0.2.77 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling which v1.0.5 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling derive_builder_core v0.2.0 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling clap v2.33.3 [INFO] [stderr] Compiling aho-corasick v0.7.13 [INFO] [stderr] Compiling aho-corasick v0.6.10 [INFO] [stderr] Compiling quote v0.5.2 [INFO] [stderr] Checking getrandom v0.1.15 [INFO] [stderr] Compiling regex v0.2.11 [INFO] [stderr] Compiling clang-sys v0.22.0 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Compiling regex v1.3.9 [INFO] [stderr] Checking tempfile v3.1.0 [INFO] [stderr] Compiling env_logger v0.5.13 [INFO] [stderr] Compiling xgboost-sys v0.1.2 [INFO] [stderr] Checking xgboost v0.1.4 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/booster.rs:181:29 [INFO] [stdout] | [INFO] [stdout] 181 | let mut eval_results = dmat_eval_results.entry(eval_name.to_string()) [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: variable does not need to be mutable [INFO] [stdout] --> src/booster.rs:191:29 [INFO] [stdout] | [INFO] [stdout] 191 | let mut dmat_results = eval_dmat_results.entry(eval_name).or_insert_with(BTreeMap::new); [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/booster.rs:551:25 [INFO] [stdout] | [INFO] [stdout] 551 | let mut metric_map = result.entry(evname.to_string()).or_insert_with(IndexMap::new); [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/booster.rs:181:29 [INFO] [stdout] | [INFO] [stdout] 181 | let mut eval_results = dmat_eval_results.entry(eval_name.to_string()) [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: variable does not need to be mutable [INFO] [stdout] --> src/booster.rs:191:29 [INFO] [stdout] | [INFO] [stdout] 191 | let mut dmat_results = eval_dmat_results.entry(eval_name).or_insert_with(BTreeMap::new); [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/booster.rs:551:25 [INFO] [stdout] | [INFO] [stdout] 551 | let mut metric_map = result.entry(evname.to_string()).or_insert_with(IndexMap::new); [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/booster.rs:715:13 [INFO] [stdout] | [INFO] [stdout] 715 | let mut dir = tempfile::tempdir().expect("create temp dir"); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 6m 04s [INFO] running `Command { std: "docker" "inspect" "079a425b0080bf16aaba8e8b649c2aa7bf1cddb802a0d4d5be05170910c9a11e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "079a425b0080bf16aaba8e8b649c2aa7bf1cddb802a0d4d5be05170910c9a11e", kill_on_drop: false }` [INFO] [stdout] 079a425b0080bf16aaba8e8b649c2aa7bf1cddb802a0d4d5be05170910c9a11e