[INFO] cloning repository https://github.com/guobin211/play-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/guobin211/play-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguobin211%2Fplay-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguobin211%2Fplay-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e81811cae26f380c85b45a0c66a9b8d3efdbfdb7
[INFO] checking guobin211/play-rust against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguobin211%2Fplay-rust" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/guobin211/play-rust on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/guobin211/play-rust
[INFO] finished tweaking git repo https://github.com/guobin211/play-rust
[INFO] tweaked toml for git repo https://github.com/guobin211/play-rust written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/guobin211/play-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "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] ac29fa581870c34a51aa379a00b7add50227f78059417073b819b6d686473b74
[INFO] running `Command { std: "docker" "start" "-a" "ac29fa581870c34a51aa379a00b7add50227f78059417073b819b6d686473b74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac29fa581870c34a51aa379a00b7add50227f78059417073b819b6d686473b74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac29fa581870c34a51aa379a00b7add50227f78059417073b819b6d686473b74", kill_on_drop: false }`
[INFO] [stdout] ac29fa581870c34a51aa379a00b7add50227f78059417073b819b6d686473b74
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "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] e7f988e6029061629aaff5cb6e69592afb831de6e550e13bd34236c38d984f05
[INFO] running `Command { std: "docker" "start" "-a" "e7f988e6029061629aaff5cb6e69592afb831de6e550e13bd34236c38d984f05", kill_on_drop: false }`
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking play-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]   --> src/main.rs:17:26
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[derive(RustcDecodable, RustcEncodable)]
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]   --> src/main.rs:17:10
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[derive(RustcDecodable, RustcEncodable)]
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `types_mod::types`
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use types_mod::types;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `user_mod::user`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use user_mod::user;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]   --> src/main.rs:17:26
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[derive(RustcDecodable, RustcEncodable)]
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcDecodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]   --> src/main.rs:17:10
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[derive(RustcDecodable, RustcEncodable)]
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `types_mod::types`
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use types_mod::types;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `user_mod::user`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use user_mod::user;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> src/types_mod/mod.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 |     pub fn run() {
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `string_copy`
[INFO] [stdout]   --> src/types_mod/mod.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn string_copy() {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `number_size`
[INFO] [stdout]   --> src/types_mod/mod.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn number_size() {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `number_string`
[INFO] [stdout]   --> src/types_mod/mod.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn number_string() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `tuple`
[INFO] [stdout]   --> src/types_mod/mod.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn tuple() {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_name`
[INFO] [stdout]   --> src/user_mod.rs:14:16
[INFO] [stdout]    |
[INFO] [stdout] 14 |         pub fn get_name(&self) -> &str {
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_name`
[INFO] [stdout]   --> src/user_mod.rs:19:16
[INFO] [stdout]    |
[INFO] [stdout] 19 |         pub fn set_name(&mut self, name: String) {
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]   --> src/user_mod.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn run() {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `create_user`
[INFO] [stdout]   --> src/user_mod.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn create_user(name: String, sign: u64) -> User {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> src/types_mod/mod.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 |     pub fn run() {
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `string_copy`
[INFO] [stdout]   --> src/types_mod/mod.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn string_copy() {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `number_size`
[INFO] [stdout]   --> src/types_mod/mod.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn number_size() {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `number_string`
[INFO] [stdout]   --> src/types_mod/mod.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn number_string() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `tuple`
[INFO] [stdout]   --> src/types_mod/mod.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn tuple() {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_name`
[INFO] [stdout]   --> src/user_mod.rs:14:16
[INFO] [stdout]    |
[INFO] [stdout] 14 |         pub fn get_name(&self) -> &str {
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_name`
[INFO] [stdout]   --> src/user_mod.rs:19:16
[INFO] [stdout]    |
[INFO] [stdout] 19 |         pub fn set_name(&mut self, name: String) {
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]   --> src/user_mod.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn run() {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `create_user`
[INFO] [stdout]   --> src/user_mod.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn create_user(name: String, sign: u64) -> User {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.32s
[INFO] running `Command { std: "docker" "inspect" "e7f988e6029061629aaff5cb6e69592afb831de6e550e13bd34236c38d984f05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7f988e6029061629aaff5cb6e69592afb831de6e550e13bd34236c38d984f05", kill_on_drop: false }`
[INFO] [stdout] e7f988e6029061629aaff5cb6e69592afb831de6e550e13bd34236c38d984f05