[INFO] fetching crate newron 0.5.1...
[INFO] checking newron-0.5.1 against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] extracting crate newron 0.5.1 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate newron 0.5.1 on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate newron 0.5.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate newron 0.5.1
[INFO] tweaked toml for crates.io crate newron 0.5.1 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate newron 0.5.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7ec9ed4cf38654d77c7a72c8dc769ae981eded8b3148b1531fd933d24b7af26
[INFO] running `Command { std: "docker" "start" "-a" "b7ec9ed4cf38654d77c7a72c8dc769ae981eded8b3148b1531fd933d24b7af26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7ec9ed4cf38654d77c7a72c8dc769ae981eded8b3148b1531fd933d24b7af26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7ec9ed4cf38654d77c7a72c8dc769ae981eded8b3148b1531fd933d24b7af26", kill_on_drop: false }`
[INFO] [stdout] b7ec9ed4cf38654d77c7a72c8dc769ae981eded8b3148b1531fd933d24b7af26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 94ac50eb79da6e0504fb2029b48c404c8d8becc067976318980a2c9364f597aa
[INFO] running `Command { std: "docker" "start" "-a" "94ac50eb79da6e0504fb2029b48c404c8d8becc067976318980a2c9364f597aa", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Checking newron v0.5.1 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/sequential.rs (4 fixes)
[INFO] [stderr]        Fixed src/dataset.rs (1 fix)
[INFO] [stdout] warning: associated function is never used: `rand_range`
[INFO] [stdout]   --> src/random.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn rand_range(&mut self, a: i32, b: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rand_range`
[INFO] [stdout]   --> src/random.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn rand_range(&mut self, a: i32, b: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Migrating examples/mnist.rs from 2018 edition to 2021
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Migrating tests/categorical_entropy.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/sequential.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/perceptron.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/wine_quality.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/metrics.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/mse.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/tensor.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/dataset.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/linear_regression.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed examples/linear_regression.rs (1 fix)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.33s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking newron v0.5.1 (/tmp/fixit)
[INFO] [stdout] warning: associated function is never used: `rand_range`
[INFO] [stdout]   --> src/random.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn rand_range(&mut self, a: i32, b: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rand_range`
[INFO] [stdout]   --> src/random.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn rand_range(&mut self, a: i32, b: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` 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 1.08s
[INFO] running `Command { std: "docker" "inspect" "94ac50eb79da6e0504fb2029b48c404c8d8becc067976318980a2c9364f597aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94ac50eb79da6e0504fb2029b48c404c8d8becc067976318980a2c9364f597aa", kill_on_drop: false }`
[INFO] [stdout] 94ac50eb79da6e0504fb2029b48c404c8d8becc067976318980a2c9364f597aa