[INFO] cloning repository https://github.com/bencelaszlo/randoom
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bencelaszlo/randoom" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbencelaszlo%2Frandoom", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbencelaszlo%2Frandoom'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 685c394b72b6599a8db4e534be8c48f7c69a4960
[INFO] checking bencelaszlo/randoom against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbencelaszlo%2Frandoom" "/workspace/builds/worker-73/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-73/source'...
[INFO] [stderr] done.
[INFO] [stderr] Updating files:  75% (6/8)
Updating files:  87% (7/8)
Updating files: 100% (8/8)
Updating files: 100% (8/8), done.
[INFO] validating manifest of git repo https://github.com/bencelaszlo/randoom on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bencelaszlo/randoom
[INFO] finished tweaking git repo https://github.com/bencelaszlo/randoom
[INFO] tweaked toml for git repo https://github.com/bencelaszlo/randoom written to /workspace/builds/worker-73/source/Cargo.toml
[INFO] crate git repo https://github.com/bencelaszlo/randoom already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c39ffa2430e909cefef3bf1ca2419e249de29f2fa58828171205dcff0ea23988
[INFO] running `Command { std: "docker" "start" "-a" "c39ffa2430e909cefef3bf1ca2419e249de29f2fa58828171205dcff0ea23988", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c39ffa2430e909cefef3bf1ca2419e249de29f2fa58828171205dcff0ea23988", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c39ffa2430e909cefef3bf1ca2419e249de29f2fa58828171205dcff0ea23988", kill_on_drop: false }`
[INFO] [stdout] c39ffa2430e909cefef3bf1ca2419e249de29f2fa58828171205dcff0ea23988
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b91fdba4aa068fb49b58f9ae395d9e2a9819328b1db9df7dc22113f287f316f
[INFO] running `Command { std: "docker" "start" "-a" "8b91fdba4aa068fb49b58f9ae395d9e2a9819328b1db9df7dc22113f287f316f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling winapi v0.3.8
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling bitflags v1.2.0
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]     Checking rgb v0.8.14
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking term_size v0.3.1
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking winconsole v0.10.0
[INFO] [stderr]     Checking colored v1.8.0
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking randoom v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/io.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |         let mut processed_line: String = line.split_whitespace().collect(); // Remove whitespaces from the string
[INFO] [stdout]    |             ----^^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/io.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |         let mut processed_line: String = line.split_whitespace().collect(); // Remove whitespaces from the string
[INFO] [stdout]    |             ----^^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_letter_char`
[INFO] [stdout]   --> src/generator.rs:79:4
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn is_letter_char(c: u8) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_lines_from_file`
[INFO] [stdout]   --> src/io.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn read_lines_from_file(file_path: String, json_string: &mut String) -> std::io::Result<()> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `deserialize_json_schema`
[INFO] [stdout]   --> src/io.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn deserialize_json_schema(file_path: String) -> std::io::Result<()> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_letter_char`
[INFO] [stdout]   --> src/generator.rs:79:4
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn is_letter_char(c: u8) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_lines_from_file`
[INFO] [stdout]   --> src/io.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn read_lines_from_file(file_path: String, json_string: &mut String) -> std::io::Result<()> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `deserialize_json_schema`
[INFO] [stdout]   --> src/io.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn deserialize_json_schema(file_path: String) -> std::io::Result<()> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.11s
[INFO] running `Command { std: "docker" "inspect" "8b91fdba4aa068fb49b58f9ae395d9e2a9819328b1db9df7dc22113f287f316f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b91fdba4aa068fb49b58f9ae395d9e2a9819328b1db9df7dc22113f287f316f", kill_on_drop: false }`
[INFO] [stdout] 8b91fdba4aa068fb49b58f9ae395d9e2a9819328b1db9df7dc22113f287f316f