[INFO] fetching crate prim 0.1.5...
[INFO] checking prim-0.1.5 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate prim 0.1.5 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate prim 0.1.5
[INFO] finished tweaking crates.io crate prim 0.1.5
[INFO] tweaked toml for crates.io crate prim 0.1.5 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate prim 0.1.5 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 3 packages to latest compatible versions
[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] 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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6252df5db1aa15d9aff7910e1b0a549e36624ce5729722e29b6210f79df57d19
[INFO] running `Command { std: "docker" "start" "-a" "6252df5db1aa15d9aff7910e1b0a549e36624ce5729722e29b6210f79df57d19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6252df5db1aa15d9aff7910e1b0a549e36624ce5729722e29b6210f79df57d19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6252df5db1aa15d9aff7910e1b0a549e36624ce5729722e29b6210f79df57d19", kill_on_drop: false }`
[INFO] [stdout] 6252df5db1aa15d9aff7910e1b0a549e36624ce5729722e29b6210f79df57d19
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e562fb8a1242a22c5d42b06fd44a1025c217bc22cb1b9ca0ffb52f9c5c78c6ab
[INFO] running `Command { std: "docker" "start" "-a" "e562fb8a1242a22c5d42b06fd44a1025c217bc22cb1b9ca0ffb52f9c5c78c6ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking integer-sqrt v0.1.5
[INFO] [stderr]     Checking prim v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `check_big_prime`
[INFO] [stdout]  --> src/lib.rs:5:42
[INFO] [stdout]   |
[INFO] [stdout] 5 |     use crate::{check_prime, check_area, check_big_prime, sieve_of_eratosthenes};
[INFO] [stdout]   |                                          ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number`
[INFO] [stdout]   --> src/lib.rs:29:20
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn check_big_prime(number:u128) -> bool {
[INFO] [stdout]    |                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number`
[INFO] [stdout]   --> src/lib.rs:29:20
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn check_big_prime(number:u128) -> bool {
[INFO] [stdout]    |                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_big_prime` is never used
[INFO] [stdout]   --> src/lib.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn check_big_prime(number:u128) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_big_prime` is never used
[INFO] [stdout]   --> src/lib.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn check_big_prime(number:u128) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.50s
[INFO] running `Command { std: "docker" "inspect" "e562fb8a1242a22c5d42b06fd44a1025c217bc22cb1b9ca0ffb52f9c5c78c6ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e562fb8a1242a22c5d42b06fd44a1025c217bc22cb1b9ca0ffb52f9c5c78c6ab", kill_on_drop: false }`
[INFO] [stdout] e562fb8a1242a22c5d42b06fd44a1025c217bc22cb1b9ca0ffb52f9c5c78c6ab