[INFO] fetching crate numerilib 0.1.2...
[INFO] building numerilib-0.1.2 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate numerilib 0.1.2 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate numerilib 0.1.2
[INFO] finished tweaking crates.io crate numerilib 0.1.2
[INFO] tweaked toml for crates.io crate numerilib 0.1.2 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate numerilib 0.1.2 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded assert_approx_eq v1.1.0
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fbe0e49c1856bffee17cdcc0404f7a6ac39f24477c18b004ba044b043e70e7ff
[INFO] running `Command { std: "docker" "start" "-a" "fbe0e49c1856bffee17cdcc0404f7a6ac39f24477c18b004ba044b043e70e7ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fbe0e49c1856bffee17cdcc0404f7a6ac39f24477c18b004ba044b043e70e7ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbe0e49c1856bffee17cdcc0404f7a6ac39f24477c18b004ba044b043e70e7ff", kill_on_drop: false }`
[INFO] [stdout] fbe0e49c1856bffee17cdcc0404f7a6ac39f24477c18b004ba044b043e70e7ff
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5659140246e705f672e301d5b91ab09f57c8e029d5bf913738470330da23d87
[INFO] running `Command { std: "docker" "start" "-a" "c5659140246e705f672e301d5b91ab09f57c8e029d5bf913738470330da23d87", kill_on_drop: false }`
[INFO] [stderr]    Compiling numerilib v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "c5659140246e705f672e301d5b91ab09f57c8e029d5bf913738470330da23d87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5659140246e705f672e301d5b91ab09f57c8e029d5bf913738470330da23d87", kill_on_drop: false }`
[INFO] [stdout] c5659140246e705f672e301d5b91ab09f57c8e029d5bf913738470330da23d87
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e42cb0c5acfb2755cabfa0ac0ab769c90462e08672875ad6d4b3801acaa1a9f6
[INFO] running `Command { std: "docker" "start" "-a" "e42cb0c5acfb2755cabfa0ac0ab769c90462e08672875ad6d4b3801acaa1a9f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling assert_approx_eq v1.1.0
[INFO] [stderr]    Compiling numerilib v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `assert_approx_eq::assert_approx_eq`
[INFO] [stdout]  --> tests/statistics_tests/generic_statistics_tests/list_test2.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     use assert_approx_eq::assert_approx_eq;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> tests/functions_tests/basic_functions_tests/product_tests.rs:10:25
[INFO] [stdout]    |
[INFO] [stdout] 10 |         let constant = |x: f64| 3_f64;
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> tests/functions_tests/basic_functions_tests/summation_tests.rs:10:25
[INFO] [stdout]    |
[INFO] [stdout] 10 |         let constant = |x: f64| 3_f64;
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `trials`
[INFO] [stdout]   --> tests/statistics_tests/distribution_tests/geometric_distribution_tests/geometric_trials_tests/geometric_trials_sd_tests.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let trials = 15_f64;
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_trials`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.47s
[INFO] running `Command { std: "docker" "inspect" "e42cb0c5acfb2755cabfa0ac0ab769c90462e08672875ad6d4b3801acaa1a9f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e42cb0c5acfb2755cabfa0ac0ab769c90462e08672875ad6d4b3801acaa1a9f6", kill_on_drop: false }`
[INFO] [stdout] e42cb0c5acfb2755cabfa0ac0ab769c90462e08672875ad6d4b3801acaa1a9f6