[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] testing bencelaszlo/randoom against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbencelaszlo%2Frandoom" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bencelaszlo/randoom on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", 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-3/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" "+beta-2021-01-01" "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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] ad834b8472773de6834c80bf0c470dc89364bbd72629d97c195bfde657587a93
[INFO] running `Command { std: "docker" "start" "-a" "ad834b8472773de6834c80bf0c470dc89364bbd72629d97c195bfde657587a93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad834b8472773de6834c80bf0c470dc89364bbd72629d97c195bfde657587a93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad834b8472773de6834c80bf0c470dc89364bbd72629d97c195bfde657587a93", kill_on_drop: false }`
[INFO] [stdout] ad834b8472773de6834c80bf0c470dc89364bbd72629d97c195bfde657587a93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c41ea2f1de6d3244386dba9463688a415c10197f5781967207cc2b7b09bdac9
[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" "9c41ea2f1de6d3244386dba9463688a415c10197f5781967207cc2b7b09bdac9", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi v0.3.8
[INFO] [stderr]    Compiling rgb v0.8.14
[INFO] [stderr]    Compiling term_size v0.3.1
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling winconsole v0.10.0
[INFO] [stderr]    Compiling colored v1.8.0
[INFO] [stderr]    Compiling 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: 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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.80s
[INFO] running `Command { std: "docker" "inspect" "9c41ea2f1de6d3244386dba9463688a415c10197f5781967207cc2b7b09bdac9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c41ea2f1de6d3244386dba9463688a415c10197f5781967207cc2b7b09bdac9", kill_on_drop: false }`
[INFO] [stdout] 9c41ea2f1de6d3244386dba9463688a415c10197f5781967207cc2b7b09bdac9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a772ef6d0462b5dc875db29b0a510c4a24105c10bd959dc136cdec8e5089dbbe
[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" "a772ef6d0462b5dc875db29b0a510c4a24105c10bd959dc136cdec8e5089dbbe", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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: 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] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.32s
[INFO] running `Command { std: "docker" "inspect" "a772ef6d0462b5dc875db29b0a510c4a24105c10bd959dc136cdec8e5089dbbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a772ef6d0462b5dc875db29b0a510c4a24105c10bd959dc136cdec8e5089dbbe", kill_on_drop: false }`
[INFO] [stdout] a772ef6d0462b5dc875db29b0a510c4a24105c10bd959dc136cdec8e5089dbbe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8108f43436148793fdf938a9e4d341b504862b09fea03895186602f86653fb8e
[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" "8108f43436148793fdf938a9e4d341b504862b09fea03895186602f86653fb8e", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/io.rs:48:13
[INFO] [stderr]    |
[INFO] [stderr] 48 |         let mut processed_line: String = line.split_whitespace().collect(); // Remove whitespaces from the string
[INFO] [stderr]    |             ----^^^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_letter_char`
[INFO] [stderr]   --> src/generator.rs:79:4
[INFO] [stderr]    |
[INFO] [stderr] 79 | fn is_letter_char(c: u8) -> bool {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_lines_from_file`
[INFO] [stderr]   --> src/io.rs:42:4
[INFO] [stderr]    |
[INFO] [stderr] 42 | fn read_lines_from_file(file_path: String, json_string: &mut String) -> std::io::Result<()> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `deserialize_json_schema`
[INFO] [stderr]   --> src/io.rs:55:8
[INFO] [stderr]    |
[INFO] [stderr] 55 | pub fn deserialize_json_schema(file_path: String) -> std::io::Result<()> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/randoom-f71d4abddc11a3e9
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8108f43436148793fdf938a9e4d341b504862b09fea03895186602f86653fb8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8108f43436148793fdf938a9e4d341b504862b09fea03895186602f86653fb8e", kill_on_drop: false }`
[INFO] [stdout] 8108f43436148793fdf938a9e4d341b504862b09fea03895186602f86653fb8e