[INFO] cloning repository https://github.com/faheemuzzaman/mysql_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/faheemuzzaman/mysql_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffaheemuzzaman%2Fmysql_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffaheemuzzaman%2Fmysql_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e831f5cc1df400c663c379a811419fdc36d800eb
[INFO] checking faheemuzzaman/mysql_rust against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffaheemuzzaman%2Fmysql_rust" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/faheemuzzaman/mysql_rust on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/faheemuzzaman/mysql_rust
[INFO] finished tweaking git repo https://github.com/faheemuzzaman/mysql_rust
[INFO] tweaked toml for git repo https://github.com/faheemuzzaman/mysql_rust written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/faheemuzzaman/mysql_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded twox-hash v1.3.0
[INFO] [stderr]   Downloaded stackvector v1.0.2
[INFO] [stderr]   Downloaded named_pipe v0.4.1
[INFO] [stderr]   Downloaded lexical v2.1.0
[INFO] [stderr]   Downloaded mysql v16.0.2
[INFO] [stderr]   Downloaded digest v0.8.0
[INFO] [stderr]   Downloaded bit-vec v0.5.1
[INFO] [stderr]   Downloaded lexical-core v0.4.0
[INFO] [stderr]   Downloaded opaque-debug v0.2.2
[INFO] [stderr]   Downloaded mysql_common v0.17.1
[INFO] [stderr]   Downloaded nix v0.13.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4ae3f8ad4c6feebac0cbfa16410f5fecacd5bc5f5a74b237857f434176d7cd59
[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" "4ae3f8ad4c6feebac0cbfa16410f5fecacd5bc5f5a74b237857f434176d7cd59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ae3f8ad4c6feebac0cbfa16410f5fecacd5bc5f5a74b237857f434176d7cd59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ae3f8ad4c6feebac0cbfa16410f5fecacd5bc5f5a74b237857f434176d7cd59", kill_on_drop: false }`
[INFO] [stdout] 4ae3f8ad4c6feebac0cbfa16410f5fecacd5bc5f5a74b237857f434176d7cd59
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6cacb8abb76813d117186fa4bf52e90a9215f20ea9e9339e38ee7ff00e7f72fa
[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" "6cacb8abb76813d117186fa4bf52e90a9215f20ea9e9339e38ee7ff00e7f72fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling ryu v0.2.8
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling serde v1.0.92
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]    Compiling regex v1.1.6
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking smallvec v0.6.9
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]    Compiling nix v0.13.0
[INFO] [stderr]     Checking bit-vec v0.5.1
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]    Compiling mysql v16.0.2
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking bufstream v0.1.4
[INFO] [stderr]     Checking block-padding v0.1.4
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.6.6
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking unicode-normalization v0.1.8
[INFO] [stderr]     Checking rand_pcg v0.1.2
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking stackvector v1.0.2
[INFO] [stderr]     Checking num-bigint v0.2.2
[INFO] [stderr]     Checking lexical-core v0.4.0
[INFO] [stderr]     Checking aho-corasick v0.7.3
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking miniz-sys v0.1.12
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking generic-array v0.12.0
[INFO] [stderr]     Checking flate2 v1.0.7
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking digest v0.8.0
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking sha2 v0.8.0
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking twox-hash v1.3.0
[INFO] [stderr]     Checking lexical v2.1.0
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking mysql_common v0.17.1
[INFO] [stderr]     Checking mysql_simple v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `fetch`
[INFO] [stdout]   --> src/main.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn fetch()
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `insert`
[INFO] [stdout]   --> src/main.rs:79:4
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn insert(){
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `fetch`
[INFO] [stdout]   --> src/main.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn fetch()
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `insert`
[INFO] [stdout]   --> src/main.rs:79:4
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn insert(){
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 51.43s
[INFO] running `Command { std: "docker" "inspect" "6cacb8abb76813d117186fa4bf52e90a9215f20ea9e9339e38ee7ff00e7f72fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cacb8abb76813d117186fa4bf52e90a9215f20ea9e9339e38ee7ff00e7f72fa", kill_on_drop: false }`
[INFO] [stdout] 6cacb8abb76813d117186fa4bf52e90a9215f20ea9e9339e38ee7ff00e7f72fa