[INFO] fetching crate xgboost 0.1.4... [INFO] checking xgboost-0.1.4 against master#7b3a7819371cef92a187e9bac8f7810ccde15216 for pr-74846 [INFO] extracting crate xgboost 0.1.4 into /workspace/builds/worker-4/source [INFO] validating manifest of crates.io crate xgboost 0.1.4 on toolchain 7b3a7819371cef92a187e9bac8f7810ccde15216 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "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-4/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d4d9afcf34e0ea2d42ba92309907f9fcf6be72fc990b34f537a19641d4c6502f [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" "d4d9afcf34e0ea2d42ba92309907f9fcf6be72fc990b34f537a19641d4c6502f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d4d9afcf34e0ea2d42ba92309907f9fcf6be72fc990b34f537a19641d4c6502f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d4d9afcf34e0ea2d42ba92309907f9fcf6be72fc990b34f537a19641d4c6502f", kill_on_drop: false }` [INFO] [stdout] d4d9afcf34e0ea2d42ba92309907f9fcf6be72fc990b34f537a19641d4c6502f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "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] 4a54084acdc1199f43cac5b9decfec1cb60f5141dc8e30451da40325766ccad9 [INFO] running `Command { std: "docker" "start" "-a" "4a54084acdc1199f43cac5b9decfec1cb60f5141dc8e30451da40325766ccad9", kill_on_drop: false }` [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling ucd-util v0.1.8 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling utf8-ranges v1.0.4 [INFO] [stderr] Compiling bindgen v0.36.1 [INFO] [stderr] Compiling unicode-xid v0.0.4 [INFO] [stderr] Checking ppv-lite86 v0.2.8 [INFO] [stderr] Compiling quote v0.3.15 [INFO] [stderr] Compiling derive_builder v0.5.1 [INFO] [stderr] Checking remove_dir_all v0.5.3 [INFO] [stderr] Compiling clang-sys v0.22.0 [INFO] [stderr] Compiling thread_local v0.3.6 [INFO] [stderr] Checking libc v0.2.74 [INFO] [stderr] Compiling synom v0.11.3 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling proc-macro2 v0.3.5 [INFO] [stderr] Compiling regex-syntax v0.5.6 [INFO] [stderr] Compiling syn v0.11.11 [INFO] [stderr] Compiling aho-corasick v0.7.13 [INFO] [stderr] Compiling aho-corasick v0.6.10 [INFO] [stderr] Compiling clap v2.33.3 [INFO] [stderr] Compiling hashbrown v0.8.2 [INFO] [stderr] Compiling indexmap v1.5.1 [INFO] [stderr] Compiling quote v0.5.2 [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 derive_builder_core v0.2.0 [INFO] [stderr] Compiling regex v1.3.9 [INFO] [stderr] Checking tempfile v3.1.0 [INFO] [stderr] Compiling regex v0.2.11 [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 5m 00s [INFO] running `Command { std: "docker" "inspect" "4a54084acdc1199f43cac5b9decfec1cb60f5141dc8e30451da40325766ccad9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4a54084acdc1199f43cac5b9decfec1cb60f5141dc8e30451da40325766ccad9", kill_on_drop: false }` [INFO] [stdout] 4a54084acdc1199f43cac5b9decfec1cb60f5141dc8e30451da40325766ccad9