[INFO] cloning repository https://github.com/micho0802/MathUtils
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/micho0802/MathUtils" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmicho0802%2FMathUtils", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmicho0802%2FMathUtils'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 489170e1114b0872db27646a5572eee1d4ce9e22
[INFO] checking micho0802/MathUtils against try#c8085cfed34c45021fc8f66d073f6394b3e35431 for pr-148939
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmicho0802%2FMathUtils" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/micho0802/MathUtils
[INFO] finished tweaking git repo https://github.com/micho0802/MathUtils
[INFO] tweaked toml for git repo https://github.com/micho0802/MathUtils written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/micho0802/MathUtils on toolchain c8085cfed34c45021fc8f66d073f6394b3e35431
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c8085cfed34c45021fc8f66d073f6394b3e35431" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/micho0802/MathUtils already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c8085cfed34c45021fc8f66d073f6394b3e35431" "fetch" "--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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+c8085cfed34c45021fc8f66d073f6394b3e35431" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 264a791f96804fccbd1e1981dada5a05cfef0540e1bf81739c7f9ff806eef927
[INFO] running `Command { std: "docker" "start" "-a" "264a791f96804fccbd1e1981dada5a05cfef0540e1bf81739c7f9ff806eef927", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "264a791f96804fccbd1e1981dada5a05cfef0540e1bf81739c7f9ff806eef927", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "264a791f96804fccbd1e1981dada5a05cfef0540e1bf81739c7f9ff806eef927", kill_on_drop: false }`
[INFO] [stdout] 264a791f96804fccbd1e1981dada5a05cfef0540e1bf81739c7f9ff806eef927
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+c8085cfed34c45021fc8f66d073f6394b3e35431" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5371d06485f818ac1bc0bc3a378664b497d04ceeb057759f48b02a07a52d1ef4
[INFO] running `Command { std: "docker" "start" "-a" "5371d06485f818ac1bc0bc3a378664b497d04ceeb057759f48b02a07a52d1ef4", kill_on_drop: false }`
[INFO] [stderr]     Checking MathUtils v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/factorial.rs:12:14
[INFO] [stdout]    |
[INFO] [stdout] 12 |     for n in (1..=number) {
[INFO] [stdout]    |              ^          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 12 -     for n in (1..=number) {
[INFO] [stdout] 12 +     for n in 1..=number {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/lib.rs:10:14
[INFO] [stdout]    |
[INFO] [stdout] 10 |     for n in (2..number) {
[INFO] [stdout]    |              ^         ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 10 -     for n in (2..number) {
[INFO] [stdout] 10 +     for n in 2..number  {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/lib.rs:23:14
[INFO] [stdout]    |
[INFO] [stdout] 23 |     for n in (2..=min) {
[INFO] [stdout]    |              ^       ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 23 -     for n in (2..=min) {
[INFO] [stdout] 23 +     for n in 2..=min  {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/factorial.rs:12:14
[INFO] [stdout]    |
[INFO] [stdout] 12 |     for n in (1..=number) {
[INFO] [stdout]    |              ^          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 12 -     for n in (1..=number) {
[INFO] [stdout] 12 +     for n in 1..=number {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/lib.rs:10:14
[INFO] [stdout]    |
[INFO] [stdout] 10 |     for n in (2..number) {
[INFO] [stdout]    |              ^         ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 10 -     for n in (2..number) {
[INFO] [stdout] 10 +     for n in 2..number  {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/lib.rs:23:14
[INFO] [stdout]    |
[INFO] [stdout] 23 |     for n in (2..=min) {
[INFO] [stdout]    |              ^       ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 23 -     for n in (2..=min) {
[INFO] [stdout] 23 +     for n in 2..=min  {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `MathUtils` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `math_utils`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "5371d06485f818ac1bc0bc3a378664b497d04ceeb057759f48b02a07a52d1ef4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5371d06485f818ac1bc0bc3a378664b497d04ceeb057759f48b02a07a52d1ef4", kill_on_drop: false }`
[INFO] [stdout] 5371d06485f818ac1bc0bc3a378664b497d04ceeb057759f48b02a07a52d1ef4