[INFO] fetching crate numerilib 0.1.2...
[INFO] checking numerilib-0.1.2 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate numerilib 0.1.2 into /workspace/builds/worker-5-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-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate numerilib 0.1.2 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "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-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7daa866f1ce438ffa1968efa9d4407bd9ebc7b78e45eae27214ea3cea9c8a73
[INFO] running `Command { std: "docker" "start" "-a" "b7daa866f1ce438ffa1968efa9d4407bd9ebc7b78e45eae27214ea3cea9c8a73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7daa866f1ce438ffa1968efa9d4407bd9ebc7b78e45eae27214ea3cea9c8a73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7daa866f1ce438ffa1968efa9d4407bd9ebc7b78e45eae27214ea3cea9c8a73", kill_on_drop: false }`
[INFO] [stdout] b7daa866f1ce438ffa1968efa9d4407bd9ebc7b78e45eae27214ea3cea9c8a73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93051ba2a892f6b9b26b7bb00fbdaee2e12a343e4f24d506e1c14d701984d061
[INFO] running `Command { std: "docker" "start" "-a" "93051ba2a892f6b9b26b7bb00fbdaee2e12a343e4f24d506e1c14d701984d061", kill_on_drop: false }`
[INFO] [stderr]     Checking assert_approx_eq v1.1.0
[INFO] [stderr]     Checking 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)]` 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)]` 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 `dev` profile [unoptimized + debuginfo] target(s) in 2.06s
[INFO] running `Command { std: "docker" "inspect" "93051ba2a892f6b9b26b7bb00fbdaee2e12a343e4f24d506e1c14d701984d061", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93051ba2a892f6b9b26b7bb00fbdaee2e12a343e4f24d506e1c14d701984d061", kill_on_drop: false }`
[INFO] [stdout] 93051ba2a892f6b9b26b7bb00fbdaee2e12a343e4f24d506e1c14d701984d061