[INFO] cloning repository https://github.com/Gorf963/four_numbers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Gorf963/four_numbers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGorf963%2Ffour_numbers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGorf963%2Ffour_numbers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ad04ffa1a3cf846e58130c7f61a8dd8cc111970f
[INFO] testing Gorf963/four_numbers against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGorf963%2Ffour_numbers" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Gorf963/four_numbers on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Gorf963/four_numbers
[INFO] finished tweaking git repo https://github.com/Gorf963/four_numbers
[INFO] tweaked toml for git repo https://github.com/Gorf963/four_numbers written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/Gorf963/four_numbers already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae9a53588999e8e57dc2292754f31dea1255cbc929ecc2389fa074a6d785215a
[INFO] running `Command { std: "docker" "start" "-a" "ae9a53588999e8e57dc2292754f31dea1255cbc929ecc2389fa074a6d785215a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae9a53588999e8e57dc2292754f31dea1255cbc929ecc2389fa074a6d785215a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae9a53588999e8e57dc2292754f31dea1255cbc929ecc2389fa074a6d785215a", kill_on_drop: false }`
[INFO] [stdout] ae9a53588999e8e57dc2292754f31dea1255cbc929ecc2389fa074a6d785215a
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad27b7fbb82458d43020da691e3baa27fa79a4e0ce7e12a849cb3758f87f10e3
[INFO] running `Command { std: "docker" "start" "-a" "ad27b7fbb82458d43020da691e3baa27fa79a4e0ce7e12a849cb3758f87f10e3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling four_numbers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around `for` iterator expression
[INFO] [stdout]   --> src/main.rs:31:14
[INFO] [stdout]    |
[INFO] [stdout] 31 |     for i in {1..13} {
[INFO] [stdout]    |              ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 31 -     for i in {1..13} {
[INFO] [stdout] 31 +     for i in 1..13 {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `for` iterator expression
[INFO] [stdout]   --> src/main.rs:35:14
[INFO] [stdout]    |
[INFO] [stdout] 35 |     for j in {1..4} {
[INFO] [stdout]    |              ^    ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 35 -     for j in {1..4} {
[INFO] [stdout] 35 +     for j in 1..4 {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `for` iterator expression
[INFO] [stdout]   --> src/main.rs:37:22
[INFO] [stdout]    |
[INFO] [stdout] 37 |         for index in {1..13} {
[INFO] [stdout]    |                      ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 37 -         for index in {1..13} {
[INFO] [stdout] 37 +         for index in 1..13 {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.20s
[INFO] running `Command { std: "docker" "inspect" "ad27b7fbb82458d43020da691e3baa27fa79a4e0ce7e12a849cb3758f87f10e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad27b7fbb82458d43020da691e3baa27fa79a4e0ce7e12a849cb3758f87f10e3", kill_on_drop: false }`
[INFO] [stdout] ad27b7fbb82458d43020da691e3baa27fa79a4e0ce7e12a849cb3758f87f10e3
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ea7a40e5f4d8cdfeacb9e77dbc44e4608a6e6a14e56588a13b6f078659c0686
[INFO] running `Command { std: "docker" "start" "-a" "5ea7a40e5f4d8cdfeacb9e77dbc44e4608a6e6a14e56588a13b6f078659c0686", kill_on_drop: false }`
[INFO] [stderr]    Compiling four_numbers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around `for` iterator expression
[INFO] [stdout]   --> src/main.rs:31:14
[INFO] [stdout]    |
[INFO] [stdout] 31 |     for i in {1..13} {
[INFO] [stdout]    |              ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 31 -     for i in {1..13} {
[INFO] [stdout] 31 +     for i in 1..13 {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `for` iterator expression
[INFO] [stdout]   --> src/main.rs:35:14
[INFO] [stdout]    |
[INFO] [stdout] 35 |     for j in {1..4} {
[INFO] [stdout]    |              ^    ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 35 -     for j in {1..4} {
[INFO] [stdout] 35 +     for j in 1..4 {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `for` iterator expression
[INFO] [stdout]   --> src/main.rs:37:22
[INFO] [stdout]    |
[INFO] [stdout] 37 |         for index in {1..13} {
[INFO] [stdout]    |                      ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 37 -         for index in {1..13} {
[INFO] [stdout] 37 +         for index in 1..13 {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "5ea7a40e5f4d8cdfeacb9e77dbc44e4608a6e6a14e56588a13b6f078659c0686", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ea7a40e5f4d8cdfeacb9e77dbc44e4608a6e6a14e56588a13b6f078659c0686", kill_on_drop: false }`
[INFO] [stdout] 5ea7a40e5f4d8cdfeacb9e77dbc44e4608a6e6a14e56588a13b6f078659c0686
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5cc9f9b54ff031fbb3cb557f3d1519f86a7f9f2e2637e8f13a76f15f92adfde4
[INFO] running `Command { std: "docker" "start" "-a" "5cc9f9b54ff031fbb3cb557f3d1519f86a7f9f2e2637e8f13a76f15f92adfde4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unnecessary braces around `for` iterator expression
[INFO] [stderr]   --> src/main.rs:31:14
[INFO] [stderr]    |
[INFO] [stderr] 31 |     for i in {1..13} {
[INFO] [stderr]    |              ^     ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr] 31 -     for i in {1..13} {
[INFO] [stderr] 31 +     for i in 1..13 {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around `for` iterator expression
[INFO] [stderr]   --> src/main.rs:35:14
[INFO] [stderr]    |
[INFO] [stderr] 35 |     for j in {1..4} {
[INFO] [stderr]    |              ^    ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr] 35 -     for j in {1..4} {
[INFO] [stderr] 35 +     for j in 1..4 {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around `for` iterator expression
[INFO] [stderr]   --> src/main.rs:37:22
[INFO] [stderr]    |
[INFO] [stderr] 37 |         for index in {1..13} {
[INFO] [stderr]    |                      ^     ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr] 37 -         for index in {1..13} {
[INFO] [stderr] 37 +         for index in 1..13 {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: `four_numbers` (bin "four_numbers" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.76s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/four_numbers-807f489c5c07fa73)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5cc9f9b54ff031fbb3cb557f3d1519f86a7f9f2e2637e8f13a76f15f92adfde4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cc9f9b54ff031fbb3cb557f3d1519f86a7f9f2e2637e8f13a76f15f92adfde4", kill_on_drop: false }`
[INFO] [stdout] 5cc9f9b54ff031fbb3cb557f3d1519f86a7f9f2e2637e8f13a76f15f92adfde4