[INFO] cloning repository https://github.com/Shiv0r/LearnRust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Shiv0r/LearnRust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShiv0r%2FLearnRust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShiv0r%2FLearnRust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4d868faf813b9e4568b3386697abd90e0643f607
[INFO] checking Shiv0r/LearnRust against c319ab3d7cf6bd67099fd3635f0e3c0fccb07e40 for pr-160391-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShiv0r%2FLearnRust" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Shiv0r/LearnRust
[INFO] finished tweaking git repo https://github.com/Shiv0r/LearnRust
[INFO] tweaked toml for git repo https://github.com/Shiv0r/LearnRust written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Shiv0r/LearnRust on toolchain c319ab3d7cf6bd67099fd3635f0e3c0fccb07e40
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c319ab3d7cf6bd67099fd3635f0e3c0fccb07e40" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Shiv0r/LearnRust 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" "+c319ab3d7cf6bd67099fd3635f0e3c0fccb07e40" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking Shiv0r/LearnRust against c319ab3d7cf6bd67099fd3635f0e3c0fccb07e40 for pr-160391-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShiv0r%2FLearnRust" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Shiv0r/LearnRust
[INFO] finished tweaking git repo https://github.com/Shiv0r/LearnRust
[INFO] tweaked toml for git repo https://github.com/Shiv0r/LearnRust written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Shiv0r/LearnRust on toolchain c319ab3d7cf6bd67099fd3635f0e3c0fccb07e40
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c319ab3d7cf6bd67099fd3635f0e3c0fccb07e40" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Shiv0r/LearnRust 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" "+c319ab3d7cf6bd67099fd3635f0e3c0fccb07e40" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:c0af3998e971868164375a7dfb646c9933ddd1a3bdb00fa2041266763dc1eeab" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] ac68296b018751429f8395c9b00d17ce4f8861a9900f7d09cfba6ed96cab8d8d
[INFO] running `Command { std: "docker" "start" "ac68296b018751429f8395c9b00d17ce4f8861a9900f7d09cfba6ed96cab8d8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac68296b018751429f8395c9b00d17ce4f8861a9900f7d09cfba6ed96cab8d8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ac68296b018751429f8395c9b00d17ce4f8861a9900f7d09cfba6ed96cab8d8d" "/opt/rustwide/cargo-home/bin/cargo" "+c319ab3d7cf6bd67099fd3635f0e3c0fccb07e40" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac68296b018751429f8395c9b00d17ce4f8861a9900f7d09cfba6ed96cab8d8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ac68296b018751429f8395c9b00d17ce4f8861a9900f7d09cfba6ed96cab8d8d" "/opt/rustwide/cargo-home/bin/cargo" "+c319ab3d7cf6bd67099fd3635f0e3c0fccb07e40" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.182
[INFO] [stderr]     Checking rand_core v0.10.0
[INFO] [stderr]    Compiling getrandom v0.4.1
[INFO] [stderr]     Checking hello_cargo v0.1.0 (/opt/rustwide/workdir/hello_cargo)
[INFO] [stderr]     Checking hello_world v0.1.0 (/opt/rustwide/workdir/hello_world)
[INFO] [stderr]     Checking chacha20 v0.10.0
[INFO] [stderr]     Checking rand v0.10.0
[INFO] [stderr]     Checking uuid v1.22.0
[INFO] [stderr]     Checking contact_fomular v0.1.0 (/opt/rustwide/workdir/contact_fomular)
[INFO] [stdout] warning: unused import: `input`
[INFO] [stdout]  --> contact_fomular/src/db.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{input, user::*};
[INFO] [stdout]   |             ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `input`
[INFO] [stdout]  --> contact_fomular/src/db.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{input, user::*};
[INFO] [stdout]   |             ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::formular::*`
[INFO] [stdout]  --> contact_fomular/src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::formular::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::formular::*`
[INFO] [stdout]  --> contact_fomular/src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::formular::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::input::*`
[INFO] [stdout]   --> contact_fomular/src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::input::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::input::*`
[INFO] [stdout]   --> contact_fomular/src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::input::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::user::*`
[INFO] [stdout]   --> contact_fomular/src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use crate::user::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::user::*`
[INFO] [stdout]   --> contact_fomular/src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use crate::user::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_id` is never used
[INFO] [stdout]    --> contact_fomular/src/formular.rs:116:4
[INFO] [stdout]     |
[INFO] [stdout] 116 | fn generate_id(user: &mut UserData) {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Exit` is never constructed
[INFO] [stdout]   --> contact_fomular/src/input.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  3 | enum TypeSelector<'a> {
[INFO] [stdout]    |      ------------ variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 11 |     Exit,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Id` is never constructed
[INFO] [stdout]   --> contact_fomular/src/user.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub enum DataSelector<'a> {
[INFO] [stdout]    |          ------------ variant in this enum
[INFO] [stdout] 20 |     Id(Uuid),
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DataSelector` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_id` is never used
[INFO] [stdout]    --> contact_fomular/src/formular.rs:116:4
[INFO] [stdout]     |
[INFO] [stdout] 116 | fn generate_id(user: &mut UserData) {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Exit` is never constructed
[INFO] [stdout]   --> contact_fomular/src/input.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  3 | enum TypeSelector<'a> {
[INFO] [stdout]    |      ------------ variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 11 |     Exit,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Id` is never constructed
[INFO] [stdout]   --> contact_fomular/src/user.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub enum DataSelector<'a> {
[INFO] [stdout]    |          ------------ variant in this enum
[INFO] [stdout] 20 |     Id(Uuid),
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DataSelector` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking LearnRust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking guessing_game v0.1.0 (/opt/rustwide/workdir/guessing_game)
[INFO] [stderr] warning: unused dependency `rand`
[INFO] [stderr]  --> Cargo.toml:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | rand = "0.10.0"
[INFO] [stderr]   | ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `rand`
[INFO] [stderr] warning: `LearnRust` (manifest) generated 1 warning
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.25s
[INFO] running `Command { std: "docker" "inspect" "ac68296b018751429f8395c9b00d17ce4f8861a9900f7d09cfba6ed96cab8d8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac68296b018751429f8395c9b00d17ce4f8861a9900f7d09cfba6ed96cab8d8d", kill_on_drop: false }`
[INFO] [stdout] ac68296b018751429f8395c9b00d17ce4f8861a9900f7d09cfba6ed96cab8d8d
