[INFO] fetching crate sklearn-sample-datasets-rs 0.1.0...
[INFO] checking sklearn-sample-datasets-rs-0.1.0 against master#e9182f195b8505c87c4bd055b9f6e114ccda0981 for pr-144098
[INFO] extracting crate sklearn-sample-datasets-rs 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate sklearn-sample-datasets-rs 0.1.0
[INFO] finished tweaking crates.io crate sklearn-sample-datasets-rs 0.1.0
[INFO] tweaked toml for crates.io crate sklearn-sample-datasets-rs 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate sklearn-sample-datasets-rs 0.1.0 on toolchain e9182f195b8505c87c4bd055b9f6e114ccda0981
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e9182f195b8505c87c4bd055b9f6e114ccda0981" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e9182f195b8505c87c4bd055b9f6e114ccda0981" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e9182f195b8505c87c4bd055b9f6e114ccda0981" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+e9182f195b8505c87c4bd055b9f6e114ccda0981" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2001d47e2e8d86e4eb4297839bb8ab3b70246a72463299e0144221b1d0d8ff71
[INFO] running `Command { std: "docker" "start" "-a" "2001d47e2e8d86e4eb4297839bb8ab3b70246a72463299e0144221b1d0d8ff71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2001d47e2e8d86e4eb4297839bb8ab3b70246a72463299e0144221b1d0d8ff71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2001d47e2e8d86e4eb4297839bb8ab3b70246a72463299e0144221b1d0d8ff71", kill_on_drop: false }`
[INFO] [stdout] 2001d47e2e8d86e4eb4297839bb8ab3b70246a72463299e0144221b1d0d8ff71
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+e9182f195b8505c87c4bd055b9f6e114ccda0981" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 79f1197e1b5b4ecec6592cbe6c4bd81c95f928bb46363c1d6bb8f50aa1bbf5fb
[INFO] running `Command { std: "docker" "start" "-a" "79f1197e1b5b4ecec6592cbe6c4bd81c95f928bb46363c1d6bb8f50aa1bbf5fb", kill_on_drop: false }`
[INFO] [stderr]     Checking sklearn-sample-datasets-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/boston.rs:3:2
[INFO] [stdout]    |
[INFO] [stdout] 2  | pub struct Data {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 3  |     CRIM: f64,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 4  |     ZN: f64,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 5  |     INDUS: f64,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 6  |     CHAS: i32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 7  |     NOX: f64,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 8  |     RM: f64,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 9  |     AGE: f64,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 10 |     DIS: f64,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 11 |     RAD: i32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 12 |     TAX: f64,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 13 |     PTRATIO: f64,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 14 |     B: f64,
[INFO] [stdout]    |     ^
[INFO] [stdout] 15 |     LSTAT: f64,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 16 |     MEDV: f64,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Data` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `sepal_length`, `sepal_width`, `petal_length`, `petal_width`, and `target` are never read
[INFO] [stdout]  --> src/iris.rs:3:2
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Data {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 3 |     sepal_length: f64,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 4 |     sepal_width: f64,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 5 |     petal_length: f64,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 6 |     petal_width: f64,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 7 |     target: i32,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Data` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `CRIM` should have a snake case name
[INFO] [stdout]  --> src/boston.rs:3:2
[INFO] [stdout]   |
[INFO] [stdout] 3 |     CRIM: f64,
[INFO] [stdout]   |     ^^^^ help: convert the identifier to snake case: `crim`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `ZN` should have a snake case name
[INFO] [stdout]  --> src/boston.rs:4:2
[INFO] [stdout]   |
[INFO] [stdout] 4 |     ZN: f64,
[INFO] [stdout]   |     ^^ help: convert the identifier to snake case: `zn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `INDUS` should have a snake case name
[INFO] [stdout]  --> src/boston.rs:5:2
[INFO] [stdout]   |
[INFO] [stdout] 5 |     INDUS: f64,
[INFO] [stdout]   |     ^^^^^ help: convert the identifier to snake case: `indus`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `CHAS` should have a snake case name
[INFO] [stdout]  --> src/boston.rs:6:2
[INFO] [stdout]   |
[INFO] [stdout] 6 |     CHAS: i32,
[INFO] [stdout]   |     ^^^^ help: convert the identifier to snake case: `chas`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `NOX` should have a snake case name
[INFO] [stdout]  --> src/boston.rs:7:2
[INFO] [stdout]   |
[INFO] [stdout] 7 |     NOX: f64,
[INFO] [stdout]   |     ^^^ help: convert the identifier to snake case: `nox`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `RM` should have a snake case name
[INFO] [stdout]  --> src/boston.rs:8:2
[INFO] [stdout]   |
[INFO] [stdout] 8 |     RM: f64,
[INFO] [stdout]   |     ^^ help: convert the identifier to snake case: `rm`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `AGE` should have a snake case name
[INFO] [stdout]  --> src/boston.rs:9:2
[INFO] [stdout]   |
[INFO] [stdout] 9 |     AGE: f64,
[INFO] [stdout]   |     ^^^ help: convert the identifier to snake case: `age`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `DIS` should have a snake case name
[INFO] [stdout]   --> src/boston.rs:10:2
[INFO] [stdout]    |
[INFO] [stdout] 10 |     DIS: f64,
[INFO] [stdout]    |     ^^^ help: convert the identifier to snake case: `dis`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `RAD` should have a snake case name
[INFO] [stdout]   --> src/boston.rs:11:2
[INFO] [stdout]    |
[INFO] [stdout] 11 |     RAD: i32,
[INFO] [stdout]    |     ^^^ help: convert the identifier to snake case: `rad`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `TAX` should have a snake case name
[INFO] [stdout]   --> src/boston.rs:12:2
[INFO] [stdout]    |
[INFO] [stdout] 12 |     TAX: f64,
[INFO] [stdout]    |     ^^^ help: convert the identifier to snake case: `tax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `PTRATIO` should have a snake case name
[INFO] [stdout]   --> src/boston.rs:13:2
[INFO] [stdout]    |
[INFO] [stdout] 13 |     PTRATIO: f64,
[INFO] [stdout]    |     ^^^^^^^ help: convert the identifier to snake case: `ptratio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `B` should have a snake case name
[INFO] [stdout]   --> src/boston.rs:14:2
[INFO] [stdout]    |
[INFO] [stdout] 14 |     B: f64,
[INFO] [stdout]    |     ^ help: convert the identifier to snake case: `b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `LSTAT` should have a snake case name
[INFO] [stdout]   --> src/boston.rs:15:2
[INFO] [stdout]    |
[INFO] [stdout] 15 |     LSTAT: f64,
[INFO] [stdout]    |     ^^^^^ help: convert the identifier to snake case: `lstat`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `MEDV` should have a snake case name
[INFO] [stdout]   --> src/boston.rs:16:2
[INFO] [stdout]    |
[INFO] [stdout] 16 |     MEDV: f64,
[INFO] [stdout]    |     ^^^^ help: convert the identifier to snake case: `medv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/boston.rs:3:2
[INFO] [stdout]    |
[INFO] [stdout] 2  | pub struct Data {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 3  |     CRIM: f64,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 4  |     ZN: f64,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 5  |     INDUS: f64,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 6  |     CHAS: i32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 7  |     NOX: f64,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 8  |     RM: f64,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 9  |     AGE: f64,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 10 |     DIS: f64,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 11 |     RAD: i32,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 12 |     TAX: f64,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 13 |     PTRATIO: f64,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 14 |     B: f64,
[INFO] [stdout]    |     ^
[INFO] [stdout] 15 |     LSTAT: f64,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 16 |     MEDV: f64,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Data` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `sepal_length`, `sepal_width`, `petal_length`, `petal_width`, and `target` are never read
[INFO] [stdout]  --> src/iris.rs:3:2
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Data {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 3 |     sepal_length: f64,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 4 |     sepal_width: f64,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 5 |     petal_length: f64,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 6 |     petal_width: f64,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 7 |     target: i32,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Data` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `CRIM` should have a snake case name
[INFO] [stdout]  --> src/boston.rs:3:2
[INFO] [stdout]   |
[INFO] [stdout] 3 |     CRIM: f64,
[INFO] [stdout]   |     ^^^^ help: convert the identifier to snake case: `crim`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `ZN` should have a snake case name
[INFO] [stdout]  --> src/boston.rs:4:2
[INFO] [stdout]   |
[INFO] [stdout] 4 |     ZN: f64,
[INFO] [stdout]   |     ^^ help: convert the identifier to snake case: `zn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `INDUS` should have a snake case name
[INFO] [stdout]  --> src/boston.rs:5:2
[INFO] [stdout]   |
[INFO] [stdout] 5 |     INDUS: f64,
[INFO] [stdout]   |     ^^^^^ help: convert the identifier to snake case: `indus`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `CHAS` should have a snake case name
[INFO] [stdout]  --> src/boston.rs:6:2
[INFO] [stdout]   |
[INFO] [stdout] 6 |     CHAS: i32,
[INFO] [stdout]   |     ^^^^ help: convert the identifier to snake case: `chas`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `NOX` should have a snake case name
[INFO] [stdout]  --> src/boston.rs:7:2
[INFO] [stdout]   |
[INFO] [stdout] 7 |     NOX: f64,
[INFO] [stdout]   |     ^^^ help: convert the identifier to snake case: `nox`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `RM` should have a snake case name
[INFO] [stdout]  --> src/boston.rs:8:2
[INFO] [stdout]   |
[INFO] [stdout] 8 |     RM: f64,
[INFO] [stdout]   |     ^^ help: convert the identifier to snake case: `rm`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `AGE` should have a snake case name
[INFO] [stdout]  --> src/boston.rs:9:2
[INFO] [stdout]   |
[INFO] [stdout] 9 |     AGE: f64,
[INFO] [stdout]   |     ^^^ help: convert the identifier to snake case: `age`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `DIS` should have a snake case name
[INFO] [stdout]   --> src/boston.rs:10:2
[INFO] [stdout]    |
[INFO] [stdout] 10 |     DIS: f64,
[INFO] [stdout]    |     ^^^ help: convert the identifier to snake case: `dis`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `RAD` should have a snake case name
[INFO] [stdout]   --> src/boston.rs:11:2
[INFO] [stdout]    |
[INFO] [stdout] 11 |     RAD: i32,
[INFO] [stdout]    |     ^^^ help: convert the identifier to snake case: `rad`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `TAX` should have a snake case name
[INFO] [stdout]   --> src/boston.rs:12:2
[INFO] [stdout]    |
[INFO] [stdout] 12 |     TAX: f64,
[INFO] [stdout]    |     ^^^ help: convert the identifier to snake case: `tax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `PTRATIO` should have a snake case name
[INFO] [stdout]   --> src/boston.rs:13:2
[INFO] [stdout]    |
[INFO] [stdout] 13 |     PTRATIO: f64,
[INFO] [stdout]    |     ^^^^^^^ help: convert the identifier to snake case: `ptratio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `B` should have a snake case name
[INFO] [stdout]   --> src/boston.rs:14:2
[INFO] [stdout]    |
[INFO] [stdout] 14 |     B: f64,
[INFO] [stdout]    |     ^ help: convert the identifier to snake case: `b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `LSTAT` should have a snake case name
[INFO] [stdout]   --> src/boston.rs:15:2
[INFO] [stdout]    |
[INFO] [stdout] 15 |     LSTAT: f64,
[INFO] [stdout]    |     ^^^^^ help: convert the identifier to snake case: `lstat`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `MEDV` should have a snake case name
[INFO] [stdout]   --> src/boston.rs:16:2
[INFO] [stdout]    |
[INFO] [stdout] 16 |     MEDV: f64,
[INFO] [stdout]    |     ^^^^ help: convert the identifier to snake case: `medv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "79f1197e1b5b4ecec6592cbe6c4bd81c95f928bb46363c1d6bb8f50aa1bbf5fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79f1197e1b5b4ecec6592cbe6c4bd81c95f928bb46363c1d6bb8f50aa1bbf5fb", kill_on_drop: false }`
[INFO] [stdout] 79f1197e1b5b4ecec6592cbe6c4bd81c95f928bb46363c1d6bb8f50aa1bbf5fb