[INFO] fetching crate simpleio 0.1.1...
[INFO] checking simpleio-0.1.1 against try#22dd2dd1dc07f63ae9394352d412f020d2985684 for pr-74627
[INFO] extracting crate simpleio 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate simpleio 0.1.1 on toolchain 22dd2dd1dc07f63ae9394352d412f020d2985684
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+22dd2dd1dc07f63ae9394352d412f020d2985684" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate simpleio 0.1.1
[INFO] finished tweaking crates.io crate simpleio 0.1.1
[INFO] tweaked toml for crates.io crate simpleio 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+22dd2dd1dc07f63ae9394352d412f020d2985684" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+22dd2dd1dc07f63ae9394352d412f020d2985684" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+22dd2dd1dc07f63ae9394352d412f020d2985684" "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] fa9dbe029c5d48df3053fab5c2ef276ef6c8d0beacf9f15e2eb01b26b0a700ab
[INFO] running `Command { std: "docker" "start" "-a" "fa9dbe029c5d48df3053fab5c2ef276ef6c8d0beacf9f15e2eb01b26b0a700ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa9dbe029c5d48df3053fab5c2ef276ef6c8d0beacf9f15e2eb01b26b0a700ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa9dbe029c5d48df3053fab5c2ef276ef6c8d0beacf9f15e2eb01b26b0a700ab", kill_on_drop: false }`
[INFO] [stdout] fa9dbe029c5d48df3053fab5c2ef276ef6c8d0beacf9f15e2eb01b26b0a700ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+22dd2dd1dc07f63ae9394352d412f020d2985684" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9465f9df45005e39d30aea57791f151bc61ba7b34ec60191df183b00384a7c5c
[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" "9465f9df45005e39d30aea57791f151bc61ba7b34ec60191df183b00384a7c5c", kill_on_drop: false }`
[INFO] [stderr]     Checking simpleio v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `test_get_home_string`
[INFO] [stdout]  --> src/bin.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn test_get_home_string(){
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_get_home`
[INFO] [stdout]   --> src/bin.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn test_get_home(){
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_file_exist`
[INFO] [stdout]   --> src/bin.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn test_file_exist(){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_create_dir`
[INFO] [stdout]   --> src/bin.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn test_create_dir(){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_get_home_string`
[INFO] [stdout]  --> src/bin.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn test_get_home_string(){
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_get_home`
[INFO] [stdout]   --> src/bin.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn test_get_home(){
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_file_exist`
[INFO] [stdout]   --> src/bin.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn test_file_exist(){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_create_dir`
[INFO] [stdout]   --> src/bin.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn test_create_dir(){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "9465f9df45005e39d30aea57791f151bc61ba7b34ec60191df183b00384a7c5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9465f9df45005e39d30aea57791f151bc61ba7b34ec60191df183b00384a7c5c", kill_on_drop: false }`
[INFO] [stdout] 9465f9df45005e39d30aea57791f151bc61ba7b34ec60191df183b00384a7c5c