[INFO] cloning repository https://github.com/khangtran2604/simple-tcp-server-client-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/khangtran2604/simple-tcp-server-client-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkhangtran2604%2Fsimple-tcp-server-client-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkhangtran2604%2Fsimple-tcp-server-client-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3a91e848f661540d31025e72eee0d2dbd7e0aac8
[INFO] checking khangtran2604/simple-tcp-server-client-rust against try#8d46be77cd48fdbcced888d027457e2c9cf2aa16 for pr-142723
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkhangtran2604%2Fsimple-tcp-server-client-rust" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/khangtran2604/simple-tcp-server-client-rust on toolchain 8d46be77cd48fdbcced888d027457e2c9cf2aa16
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/khangtran2604/simple-tcp-server-client-rust
[INFO] finished tweaking git repo https://github.com/khangtran2604/simple-tcp-server-client-rust
[INFO] tweaked toml for git repo https://github.com/khangtran2604/simple-tcp-server-client-rust written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/khangtran2604/simple-tcp-server-client-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef236f2615d2ffc07224f008129f805a774071af74765e7115ad9a69f11ca6c3
[INFO] running `Command { std: "docker" "start" "-a" "ef236f2615d2ffc07224f008129f805a774071af74765e7115ad9a69f11ca6c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef236f2615d2ffc07224f008129f805a774071af74765e7115ad9a69f11ca6c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef236f2615d2ffc07224f008129f805a774071af74765e7115ad9a69f11ca6c3", kill_on_drop: false }`
[INFO] [stdout] ef236f2615d2ffc07224f008129f805a774071af74765e7115ad9a69f11ca6c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: unused imports: `course::create_course_table` and `tutor::create_tutor_table`
[INFO] [stdout]  --> src/bin/server.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 | use seeds::{course::create_course_table, seed_tables, tutor::create_tutor_table};
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::clone`
[INFO] [stdout]  --> src/bin/../models/tutor.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::clone;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `course::create_course_table` and `tutor::create_tutor_table`
[INFO] [stdout]  --> src/bin/server.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 | use seeds::{course::create_course_table, seed_tables, tutor::create_tutor_table};
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^               ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::clone`
[INFO] [stdout]  --> src/bin/../models/tutor.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::clone;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/bin/../models/course.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl NewCourseInput {
[INFO] [stdout]    | ------------------- associated function in this implementation
[INFO] [stdout] 21 |     pub fn new(tutor_id: i32, name: String, description: Option<String>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/bin/../models/course.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 47 | impl UpdateCourseInput {
[INFO] [stdout]    | ---------------------- associated function in this implementation
[INFO] [stdout] 48 |     pub fn new(tutor_id: Option<i32>, name: Option<String>, description: Option<String>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/bin/../models/tutor.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl NewTutorInput {
[INFO] [stdout]    | ------------------ associated function in this implementation
[INFO] [stdout] 22 |     pub fn new(name: String, age: i32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `ActiveWebError` is never constructed
[INFO] [stdout]  --> src/bin/../custom_error.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum CustomError {
[INFO] [stdout]   |          ----------- variant in this enum
[INFO] [stdout] 8 |     ActiveWebError(String),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `CustomError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/bin/../models/course.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl NewCourseInput {
[INFO] [stdout]    | ------------------- associated function in this implementation
[INFO] [stdout] 21 |     pub fn new(tutor_id: i32, name: String, description: Option<String>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/bin/../models/course.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 47 | impl UpdateCourseInput {
[INFO] [stdout]    | ---------------------- associated function in this implementation
[INFO] [stdout] 48 |     pub fn new(tutor_id: Option<i32>, name: Option<String>, description: Option<String>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/bin/../models/tutor.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl NewTutorInput {
[INFO] [stdout]    | ------------------ associated function in this implementation
[INFO] [stdout] 22 |     pub fn new(name: String, age: i32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `ActiveWebError` is never constructed
[INFO] [stdout]  --> src/bin/../custom_error.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum CustomError {
[INFO] [stdout]   |          ----------- variant in this enum
[INFO] [stdout] 8 |     ActiveWebError(String),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `CustomError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 10s
[INFO] running `Command { std: "docker" "inspect" "65c34565bd161c4434d126f99d5b177e6e833e4f1bc0d24aa4a208b2736703a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65c34565bd161c4434d126f99d5b177e6e833e4f1bc0d24aa4a208b2736703a8", kill_on_drop: false }`
[INFO] [stdout] 65c34565bd161c4434d126f99d5b177e6e833e4f1bc0d24aa4a208b2736703a8