[INFO] fetching crate linfa-logistic 0.3.1...
[INFO] checking linfa-logistic-0.3.1 against master#195ad4830e11a544391abe296b146450dea8411b for pr-82781
[INFO] extracting crate linfa-logistic 0.3.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate linfa-logistic 0.3.1 on toolchain 195ad4830e11a544391abe296b146450dea8411b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate linfa-logistic 0.3.1
[INFO] finished tweaking crates.io crate linfa-logistic 0.3.1
[INFO] tweaked toml for crates.io crate linfa-logistic 0.3.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate linfa-logistic 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d891886ce6dbc4757c901992724b9dbbd56719d59a8bd30581314ed55d331680
[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" "d891886ce6dbc4757c901992724b9dbbd56719d59a8bd30581314ed55d331680", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d891886ce6dbc4757c901992724b9dbbd56719d59a8bd30581314ed55d331680", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d891886ce6dbc4757c901992724b9dbbd56719d59a8bd30581314ed55d331680", kill_on_drop: false }`
[INFO] [stdout] d891886ce6dbc4757c901992724b9dbbd56719d59a8bd30581314ed55d331680
[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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e82312c81ec09e1841a7def54288c4a0e37f6769152448e6d8a2ac9e9779c6d
[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" "2e82312c81ec09e1841a7def54288c4a0e37f6769152448e6d8a2ac9e9779c6d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
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[INFO] [stderr]     Checking cfg-if v1.0.0
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[INFO] [stderr]    Compiling ndarray v0.13.1
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[INFO] [stderr]     Checking blas-src v0.2.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
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[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
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[INFO] [stderr]     Checking bstr v0.2.15
[INFO] [stderr]     Checking rand_xorshift v0.2.0
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[INFO] [stderr]     Checking slog-json v2.3.0
[INFO] [stderr]     Checking linfa v0.3.1
[INFO] [stderr]     Checking ndarray-rand v0.11.0
[INFO] [stderr]     Checking ndarray-linalg v0.12.1
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[INFO] [stderr]     Checking linfa-datasets v0.3.1
[INFO] [stderr]     Checking argmin v0.3.1
[INFO] [stderr]     Checking linfa-logistic v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:387:16
[INFO] [stdout]     |
[INFO] [stdout] 387 |           panic!(format!(
[INFO] [stdout]     |  ________________^
[INFO] [stdout] 388 | |             "Unexpected length of parameter vector `w`, exected {} or {}, found {}",
[INFO] [stdout] 389 | |             n_features,
[INFO] [stdout] 390 | |             n_features + 1,
[INFO] [stdout] 391 | |             w.len()
[INFO] [stdout] 392 | |         ));
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 387 |         panic!(
[INFO] [stdout] 388 |             "Unexpected length of parameter vector `w`, exected {} or {}, found {}",
[INFO] [stdout] 389 |             n_features,
[INFO] [stdout] 390 |             n_features + 1,
[INFO] [stdout] 391 |             w.len()
[INFO] [stdout] 392 |         );
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:387:16
[INFO] [stdout]     |
[INFO] [stdout] 387 |           panic!(format!(
[INFO] [stdout]     |  ________________^
[INFO] [stdout] 388 | |             "Unexpected length of parameter vector `w`, exected {} or {}, found {}",
[INFO] [stdout] 389 | |             n_features,
[INFO] [stdout] 390 | |             n_features + 1,
[INFO] [stdout] 391 | |             w.len()
[INFO] [stdout] 392 | |         ));
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 387 |         panic!(
[INFO] [stdout] 388 |             "Unexpected length of parameter vector `w`, exected {} or {}, found {}",
[INFO] [stdout] 389 |             n_features,
[INFO] [stdout] 390 |             n_features + 1,
[INFO] [stdout] 391 |             w.len()
[INFO] [stdout] 392 |         );
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 23s
[INFO] running `Command { std: "docker" "inspect" "2e82312c81ec09e1841a7def54288c4a0e37f6769152448e6d8a2ac9e9779c6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e82312c81ec09e1841a7def54288c4a0e37f6769152448e6d8a2ac9e9779c6d", kill_on_drop: false }`
[INFO] [stdout] 2e82312c81ec09e1841a7def54288c4a0e37f6769152448e6d8a2ac9e9779c6d