[INFO] cloning repository https://github.com/banziha104/RustSample
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/banziha104/RustSample" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbanziha104%2FRustSample", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbanziha104%2FRustSample'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9ec3f524c9f5005f8e920a66b640132751f86d23
[INFO] checking banziha104/RustSample against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbanziha104%2FRustSample" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/banziha104/RustSample on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/banziha104/RustSample
[INFO] finished tweaking git repo https://github.com/banziha104/RustSample
[INFO] tweaked toml for git repo https://github.com/banziha104/RustSample written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/banziha104/RustSample already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", 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] 54571a28fcc279195e81aba74ad8bdbbc7c9114eb61992d120ecb7e951029c8f
[INFO] running `Command { std: "docker" "start" "-a" "54571a28fcc279195e81aba74ad8bdbbc7c9114eb61992d120ecb7e951029c8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "54571a28fcc279195e81aba74ad8bdbbc7c9114eb61992d120ecb7e951029c8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54571a28fcc279195e81aba74ad8bdbbc7c9114eb61992d120ecb7e951029c8f", kill_on_drop: false }`
[INFO] [stdout] 54571a28fcc279195e81aba74ad8bdbbc7c9114eb61992d120ecb7e951029c8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "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] 484c0be7da232cdec945d3b8ee7ac0034238ac4e1b93ab4d29b4a40b629242fb
[INFO] running `Command { std: "docker" "start" "-a" "484c0be7da232cdec945d3b8ee7ac0034238ac4e1b93ab4d29b4a40b629242fb", kill_on_drop: false }`
[INFO] [stderr]     Checking RustSample v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `RustSample` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `rust_sample`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `returnFormat` should have a snake case name
[INFO] [stdout]  --> src/main.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn returnFormat(i : i32) -> String{
[INFO] [stdout]   |    ^^^^^^^^^^^^ help: convert the identifier to snake case: `return_format`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `RustSample` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `rust_sample`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `returnFormat` should have a snake case name
[INFO] [stdout]  --> src/main.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn returnFormat(i : i32) -> String{
[INFO] [stdout]   |    ^^^^^^^^^^^^ help: convert the identifier to snake case: `return_format`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "484c0be7da232cdec945d3b8ee7ac0034238ac4e1b93ab4d29b4a40b629242fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "484c0be7da232cdec945d3b8ee7ac0034238ac4e1b93ab4d29b4a40b629242fb", kill_on_drop: false }`
[INFO] [stdout] 484c0be7da232cdec945d3b8ee7ac0034238ac4e1b93ab4d29b4a40b629242fb