[INFO] fetching crate gbdt 0.1.1...
[INFO] checking gbdt-0.1.1 against master#119d2a1a98fe87d4ae6cabf12134a0ef2fb95851 for pr-75180
[INFO] extracting crate gbdt 0.1.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate gbdt 0.1.1 on toolchain 119d2a1a98fe87d4ae6cabf12134a0ef2fb95851
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gbdt 0.1.1
[INFO] finished tweaking crates.io crate gbdt 0.1.1
[INFO] tweaked toml for crates.io crate gbdt 0.1.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b994f4af722dbc2ef4e4941b82713e1b9c6ae5e6d893785a2f836542f847a01c
[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" "b994f4af722dbc2ef4e4941b82713e1b9c6ae5e6d893785a2f836542f847a01c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b994f4af722dbc2ef4e4941b82713e1b9c6ae5e6d893785a2f836542f847a01c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b994f4af722dbc2ef4e4941b82713e1b9c6ae5e6d893785a2f836542f847a01c", kill_on_drop: false }`
[INFO] [stdout] b994f4af722dbc2ef4e4941b82713e1b9c6ae5e6d893785a2f836542f847a01c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52a1070c75d313d7a0872e876787961e8f77deca18c5bb2d6072d089c114208d
[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" "52a1070c75d313d7a0872e876787961e8f77deca18c5bb2d6072d089c114208d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking gbdt v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/decision_tree.rs:1749:75
[INFO] [stdout]      |
[INFO] [stdout] 1749 |     pub fn get_from_xgboost(node: &serde_json::Value) -> Result<Self, Box<Error>> {
[INFO] [stdout]      |                                                                           ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/decision_tree.rs:1762:25
[INFO] [stdout]      |
[INFO] [stdout] 1762 |     ) -> Result<(), Box<Error>> {
[INFO] [stdout]      |                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/decision_tree.rs:1801:34
[INFO] [stdout]      |
[INFO] [stdout] 1801 |                     let err: Box<Error> = From::from("not support extra missing node".to_string());
[INFO] [stdout]      |                                  ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/decision_tree.rs:1838:26
[INFO] [stdout]      |
[INFO] [stdout] 1838 |             let err: Box<Error> = From::from("children not found".to_string());
[INFO] [stdout]      |                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/gradient_boost.rs:710:64
[INFO] [stdout]     |
[INFO] [stdout] 710 |     pub fn save_model(&self, filename: &str) -> Result<(), Box<Error>> {
[INFO] [stdout]     |                                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/gradient_boost.rs:729:59
[INFO] [stdout]     |
[INFO] [stdout] 729 |     pub fn load_model(filename: &str) -> Result<Self, Box<Error>> {
[INFO] [stdout]     |                                                           ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/gradient_boost.rs:749:84
[INFO] [stdout]     |
[INFO] [stdout] 749 |     pub fn from_xgoost_dump(model_file: &str, objective: &str) -> Result<Self, Box<Error>> {
[INFO] [stdout]     |                                                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/input.rs:289:84
[INFO] [stdout]     |
[INFO] [stdout] 289 | pub fn load_csv(file: &mut File, input_format: InputFormat) -> Result<DataVec, Box<Error>> {
[INFO] [stdout]     |                                                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/input.rs:340:84
[INFO] [stdout]     |
[INFO] [stdout] 340 | pub fn load_txt(file: &mut File, input_format: InputFormat) -> Result<DataVec, Box<Error>> {
[INFO] [stdout]     |                                                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/input.rs:417:80
[INFO] [stdout]     |
[INFO] [stdout] 417 | pub fn load(file_name: &str, input_format: InputFormat) -> Result<DataVec, Box<Error>> {
[INFO] [stdout]     |                                                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/decision_tree.rs:1749:75
[INFO] [stdout]      |
[INFO] [stdout] 1749 |     pub fn get_from_xgboost(node: &serde_json::Value) -> Result<Self, Box<Error>> {
[INFO] [stdout]      |                                                                           ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/decision_tree.rs:1762:25
[INFO] [stdout]      |
[INFO] [stdout] 1762 |     ) -> Result<(), Box<Error>> {
[INFO] [stdout]      |                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/decision_tree.rs:1801:34
[INFO] [stdout]      |
[INFO] [stdout] 1801 |                     let err: Box<Error> = From::from("not support extra missing node".to_string());
[INFO] [stdout]      |                                  ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/decision_tree.rs:1838:26
[INFO] [stdout]      |
[INFO] [stdout] 1838 |             let err: Box<Error> = From::from("children not found".to_string());
[INFO] [stdout]      |                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/gradient_boost.rs:710:64
[INFO] [stdout]     |
[INFO] [stdout] 710 |     pub fn save_model(&self, filename: &str) -> Result<(), Box<Error>> {
[INFO] [stdout]     |                                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/gradient_boost.rs:729:59
[INFO] [stdout]     |
[INFO] [stdout] 729 |     pub fn load_model(filename: &str) -> Result<Self, Box<Error>> {
[INFO] [stdout]     |                                                           ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/gradient_boost.rs:749:84
[INFO] [stdout]     |
[INFO] [stdout] 749 |     pub fn from_xgoost_dump(model_file: &str, objective: &str) -> Result<Self, Box<Error>> {
[INFO] [stdout]     |                                                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/input.rs:289:84
[INFO] [stdout]     |
[INFO] [stdout] 289 | pub fn load_csv(file: &mut File, input_format: InputFormat) -> Result<DataVec, Box<Error>> {
[INFO] [stdout]     |                                                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/input.rs:340:84
[INFO] [stdout]     |
[INFO] [stdout] 340 | pub fn load_txt(file: &mut File, input_format: InputFormat) -> Result<DataVec, Box<Error>> {
[INFO] [stdout]     |                                                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/input.rs:417:80
[INFO] [stdout]     |
[INFO] [stdout] 417 | pub fn load(file_name: &str, input_format: InputFormat) -> Result<DataVec, Box<Error>> {
[INFO] [stdout]     |                                                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PredVec`
[INFO] [stdout]  --> examples/test-batch.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 | use gbdt::decision_tree::{PredVec, ValueType};
[INFO] [stdout]   |                           ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` 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 43.75s
[INFO] running `Command { std: "docker" "inspect" "52a1070c75d313d7a0872e876787961e8f77deca18c5bb2d6072d089c114208d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52a1070c75d313d7a0872e876787961e8f77deca18c5bb2d6072d089c114208d", kill_on_drop: false }`
[INFO] [stdout] 52a1070c75d313d7a0872e876787961e8f77deca18c5bb2d6072d089c114208d