[INFO] updating cached 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" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e81811cae26f380c85b45a0c66a9b8d3efdbfdb7
[INFO] testing guobin211/play-rust against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fguobin211%2Fplay-rust" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/guobin211/play-rust on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", 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-0/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" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "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] 1151e43fb2d7896b91e651ed3ce63a745e7eaad7d827188e22b24aeaf43df6df
[INFO] running `Command { std: "docker" "start" "-a" "1151e43fb2d7896b91e651ed3ce63a745e7eaad7d827188e22b24aeaf43df6df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1151e43fb2d7896b91e651ed3ce63a745e7eaad7d827188e22b24aeaf43df6df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1151e43fb2d7896b91e651ed3ce63a745e7eaad7d827188e22b24aeaf43df6df", kill_on_drop: false }`
[INFO] [stdout] 1151e43fb2d7896b91e651ed3ce63a745e7eaad7d827188e22b24aeaf43df6df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 99362f32969f4fcb7474a140dd9bad463f36e7cc55a5a1287aa5ba3b4317f59a
[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" "99362f32969f4fcb7474a140dd9bad463f36e7cc55a5a1287aa5ba3b4317f59a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling play-rust v0.1.0 (/opt/rustwide/workdir)
[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: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.41s
[INFO] running `Command { std: "docker" "inspect" "99362f32969f4fcb7474a140dd9bad463f36e7cc55a5a1287aa5ba3b4317f59a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99362f32969f4fcb7474a140dd9bad463f36e7cc55a5a1287aa5ba3b4317f59a", kill_on_drop: false }`
[INFO] [stdout] 99362f32969f4fcb7474a140dd9bad463f36e7cc55a5a1287aa5ba3b4317f59a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e8b90d1556c6bf3bb78faed5e0a203b56fc8d9244414a99e4e4d30501e4fa2f4
[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" "e8b90d1556c6bf3bb78faed5e0a203b56fc8d9244414a99e4e4d30501e4fa2f4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling play-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.64s
[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: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e8b90d1556c6bf3bb78faed5e0a203b56fc8d9244414a99e4e4d30501e4fa2f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8b90d1556c6bf3bb78faed5e0a203b56fc8d9244414a99e4e4d30501e4fa2f4", kill_on_drop: false }`
[INFO] [stdout] e8b90d1556c6bf3bb78faed5e0a203b56fc8d9244414a99e4e4d30501e4fa2f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen", 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] 3def39d3ef7b5c025db13bb768341cd76432764bc2585ac3915fd17314ce655f
[INFO] running `Command { std: "docker" "start" "-a" "3def39d3ef7b5c025db13bb768341cd76432764bc2585ac3915fd17314ce655f", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `types_mod::types`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use types_mod::types;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `user_mod::user`
[INFO] [stderr]   --> src/main.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use user_mod::user;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]  --> src/types_mod/mod.rs:5:12
[INFO] [stderr]   |
[INFO] [stderr] 5 |     pub fn run() {
[INFO] [stderr]   |            ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `string_copy`
[INFO] [stderr]   --> src/types_mod/mod.rs:13:8
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn string_copy() {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `number_size`
[INFO] [stderr]   --> src/types_mod/mod.rs:22:8
[INFO] [stderr]    |
[INFO] [stderr] 22 |     fn number_size() {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `number_string`
[INFO] [stderr]   --> src/types_mod/mod.rs:35:8
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn number_string() {
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `tuple`
[INFO] [stderr]   --> src/types_mod/mod.rs:53:8
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn tuple() {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_name`
[INFO] [stderr]   --> src/user_mod.rs:14:16
[INFO] [stderr]    |
[INFO] [stderr] 14 |         pub fn get_name(&self) -> &str {
[INFO] [stderr]    |                ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `set_name`
[INFO] [stderr]   --> src/user_mod.rs:19:16
[INFO] [stderr]    |
[INFO] [stderr] 19 |         pub fn set_name(&mut self, name: String) {
[INFO] [stderr]    |                ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]   --> src/user_mod.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn run() {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `create_user`
[INFO] [stderr]   --> src/user_mod.rs:28:12
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn create_user(name: String, sign: u64) -> User {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/play_rust-5bfe30089392253a
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3def39d3ef7b5c025db13bb768341cd76432764bc2585ac3915fd17314ce655f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3def39d3ef7b5c025db13bb768341cd76432764bc2585ac3915fd17314ce655f", kill_on_drop: false }`
[INFO] [stdout] 3def39d3ef7b5c025db13bb768341cd76432764bc2585ac3915fd17314ce655f