[INFO] cloning repository https://github.com/MaciekTalaska/rust_performance_test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MaciekTalaska/rust_performance_test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMaciekTalaska%2Frust_performance_test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMaciekTalaska%2Frust_performance_test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 875939fdc54e37e9c5814f275b43b4b66b7aa3ad
[INFO] checking MaciekTalaska/rust_performance_test against master#39b841dfe36f90a7cd111e7f0c55f32594f6e578 for pr-77035
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMaciekTalaska%2Frust_performance_test" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MaciekTalaska/rust_performance_test on toolchain 39b841dfe36f90a7cd111e7f0c55f32594f6e578
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MaciekTalaska/rust_performance_test
[INFO] finished tweaking git repo https://github.com/MaciekTalaska/rust_performance_test
[INFO] tweaked toml for git repo https://github.com/MaciekTalaska/rust_performance_test written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/MaciekTalaska/rust_performance_test already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7a900353d9097d420eb8277b795c9629c9de1a6332dea7dbcf532ab1127f7305
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7a900353d9097d420eb8277b795c9629c9de1a6332dea7dbcf532ab1127f7305", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a900353d9097d420eb8277b795c9629c9de1a6332dea7dbcf532ab1127f7305", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a900353d9097d420eb8277b795c9629c9de1a6332dea7dbcf532ab1127f7305", kill_on_drop: false }`
[INFO] [stdout] 7a900353d9097d420eb8277b795c9629c9de1a6332dea7dbcf532ab1127f7305
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6c7338265b05d31928fe255fd044503afeeea4f581af4821c5f5e813ed942bf1
[INFO] running `Command { std: "docker" "start" "-a" "6c7338265b05d31928fe255fd044503afeeea4f581af4821c5f5e813ed942bf1", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking bencher v0.1.5
[INFO] [stderr]     Checking rust_performance_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking getopts v0.2.18
[INFO] [stdout] warning: unnecessary braces around `for` iterator expression
[INFO] [stdout]  --> src/vectors.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 |     for _i in { 0..size } {
[INFO] [stdout]   |               ^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `for` iterator expression
[INFO] [stdout]   --> src/computation.rs:17:15
[INFO] [stdout]    |
[INFO] [stdout] 17 |     for _i in { 0..count } {
[INFO] [stdout]    |               ^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `for` iterator expression
[INFO] [stdout]   --> src/computation.rs:26:15
[INFO] [stdout]    |
[INFO] [stdout] 26 |     for _i in { 0..count } {
[INFO] [stdout]    |               ^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling rustc-test v0.3.0
[INFO] [stdout] warning: unnecessary braces around `for` iterator expression
[INFO] [stdout]  --> src/vectors.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 |     for _i in { 0..size } {
[INFO] [stdout]   |               ^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `for` iterator expression
[INFO] [stdout]   --> src/computation.rs:17:15
[INFO] [stdout]    |
[INFO] [stdout] 17 |     for _i in { 0..count } {
[INFO] [stdout]    |               ^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `for` iterator expression
[INFO] [stdout]   --> src/computation.rs:26:15
[INFO] [stdout]    |
[INFO] [stdout] 26 |     for _i in { 0..count } {
[INFO] [stdout]    |               ^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `for` iterator expression
[INFO] [stdout]   --> src/computation.rs:63:19
[INFO] [stdout]    |
[INFO] [stdout] 63 |         for _i in { 0..100 } {
[INFO] [stdout]    |                   ^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.34s
[INFO] running `Command { std: "docker" "inspect" "6c7338265b05d31928fe255fd044503afeeea4f581af4821c5f5e813ed942bf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c7338265b05d31928fe255fd044503afeeea4f581af4821c5f5e813ed942bf1", kill_on_drop: false }`
[INFO] [stdout] 6c7338265b05d31928fe255fd044503afeeea4f581af4821c5f5e813ed942bf1