[INFO] cloning repository https://github.com/JuanTorres93/hangman
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JuanTorres93/hangman" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJuanTorres93%2Fhangman", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJuanTorres93%2Fhangman'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 876cbb8fcc5f8c4d40f6d8042b5a091b24077fda
[INFO] testing JuanTorres93/hangman against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJuanTorres93%2Fhangman" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JuanTorres93/hangman on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JuanTorres93/hangman
[INFO] finished tweaking git repo https://github.com/JuanTorres93/hangman
[INFO] tweaked toml for git repo https://github.com/JuanTorres93/hangman written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/JuanTorres93/hangman already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "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] 14c71627b95bec00d4e9a2826e40e055a016b9a14bb5b8c48b34a3ba7fcabc95
[INFO] running `Command { std: "docker" "start" "-a" "14c71627b95bec00d4e9a2826e40e055a016b9a14bb5b8c48b34a3ba7fcabc95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "14c71627b95bec00d4e9a2826e40e055a016b9a14bb5b8c48b34a3ba7fcabc95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14c71627b95bec00d4e9a2826e40e055a016b9a14bb5b8c48b34a3ba7fcabc95", kill_on_drop: false }`
[INFO] [stdout] 14c71627b95bec00d4e9a2826e40e055a016b9a14bb5b8c48b34a3ba7fcabc95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f6eb644b54510d3da31fac14fa9e3fd06865b00e333e27efaa65d02857b3982f
[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" "f6eb644b54510d3da31fac14fa9e3fd06865b00e333e27efaa65d02857b3982f", kill_on_drop: false }`
[INFO] [stderr]    Compiling home v0.5.3
[INFO] [stderr]    Compiling hangman v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `PathBuf`
[INFO] [stdout]  --> src/hangman/file_system.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::path::{Path, PathBuf};
[INFO] [stdout]   |                       ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `origin`
[INFO] [stdout]   --> src/hangman/file_system.rs:22:30
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn copy_file_to_location(origin: String, destination: String, overwrite: bool) {
[INFO] [stdout]    |                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_origin`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `destination`
[INFO] [stdout]   --> src/hangman/file_system.rs:22:46
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn copy_file_to_location(origin: String, destination: String, overwrite: bool) {
[INFO] [stdout]    |                                              ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_destination`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_file_to_string`
[INFO] [stdout]  --> src/hangman/file_system.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn read_file_to_string(filename: String) -> Result<(String, File), String> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `copy_file_to_location`
[INFO] [stdout]   --> src/hangman/file_system.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn copy_file_to_location(origin: String, destination: String, overwrite: bool) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `create_directory`
[INFO] [stdout]   --> src/hangman/file_system.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn create_directory(dirname: &String){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `home_directory`
[INFO] [stdout]   --> src/hangman/file_system.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn home_directory() -> String{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `path_exists`
[INFO] [stdout]   --> src/hangman/file_system.rs:46:4
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn path_exists(path: &String) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/hangman/file_system.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         create_dir_all(dirname);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.02s
[INFO] running `Command { std: "docker" "inspect" "f6eb644b54510d3da31fac14fa9e3fd06865b00e333e27efaa65d02857b3982f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6eb644b54510d3da31fac14fa9e3fd06865b00e333e27efaa65d02857b3982f", kill_on_drop: false }`
[INFO] [stdout] f6eb644b54510d3da31fac14fa9e3fd06865b00e333e27efaa65d02857b3982f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 54a4220b388513f814cd786d7bdac70c669ad901a0ce91dcfae642ac84de5877
[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" "54a4220b388513f814cd786d7bdac70c669ad901a0ce91dcfae642ac84de5877", kill_on_drop: false }`
[INFO] [stderr]    Compiling hangman v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `PathBuf`
[INFO] [stdout]  --> src/hangman/file_system.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::path::{Path, PathBuf};
[INFO] [stdout]   |                       ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `origin`
[INFO] [stdout]   --> src/hangman/file_system.rs:22:30
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn copy_file_to_location(origin: String, destination: String, overwrite: bool) {
[INFO] [stdout]    |                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_origin`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `destination`
[INFO] [stdout]   --> src/hangman/file_system.rs:22:46
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn copy_file_to_location(origin: String, destination: String, overwrite: bool) {
[INFO] [stdout]    |                                              ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_destination`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_file_to_string`
[INFO] [stdout]  --> src/hangman/file_system.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn read_file_to_string(filename: String) -> Result<(String, File), String> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `copy_file_to_location`
[INFO] [stdout]   --> src/hangman/file_system.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn copy_file_to_location(origin: String, destination: String, overwrite: bool) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `create_directory`
[INFO] [stdout]   --> src/hangman/file_system.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn create_directory(dirname: &String){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `home_directory`
[INFO] [stdout]   --> src/hangman/file_system.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn home_directory() -> String{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `path_exists`
[INFO] [stdout]   --> src/hangman/file_system.rs:46:4
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn path_exists(path: &String) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/hangman/file_system.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         create_dir_all(dirname);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.70s
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "54a4220b388513f814cd786d7bdac70c669ad901a0ce91dcfae642ac84de5877", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54a4220b388513f814cd786d7bdac70c669ad901a0ce91dcfae642ac84de5877", kill_on_drop: false }`
[INFO] [stdout] 54a4220b388513f814cd786d7bdac70c669ad901a0ce91dcfae642ac84de5877
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3b186e4d3a084d23438d9ed97c102092c868a28fbdd5771cbc9d5e6ec8e95e0c
[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" "3b186e4d3a084d23438d9ed97c102092c868a28fbdd5771cbc9d5e6ec8e95e0c", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused import: `PathBuf`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/hangman/file_system.rs:5:23
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr] 5 | use std::path::{Path, PathBuf};
[INFO] [stdout] 
[INFO] [stderr]   |                       ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `origin`
[INFO] [stderr]   --> src/hangman/file_system.rs:22:30
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub fn copy_file_to_location(origin: String, destination: String, overwrite: bool) {
[INFO] [stderr]    |                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_origin`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `destination`
[INFO] [stderr]   --> src/hangman/file_system.rs:22:46
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub fn copy_file_to_location(origin: String, destination: String, overwrite: bool) {
[INFO] [stderr]    |                                              ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_destination`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_file_to_string`
[INFO] [stderr]  --> src/hangman/file_system.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn read_file_to_string(filename: String) -> Result<(String, File), String> {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `copy_file_to_location`
[INFO] [stderr]   --> src/hangman/file_system.rs:22:8
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub fn copy_file_to_location(origin: String, destination: String, overwrite: bool) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `create_directory`
[INFO] [stderr]   --> src/hangman/file_system.rs:29:8
[INFO] [stderr]    |
[INFO] [stderr] 29 | pub fn create_directory(dirname: &String){
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `home_directory`
[INFO] [stderr]   --> src/hangman/file_system.rs:35:8
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub fn home_directory() -> String{
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `path_exists`
[INFO] [stderr]   --> src/hangman/file_system.rs:46:4
[INFO] [stderr]    |
[INFO] [stderr] 46 | fn path_exists(path: &String) -> bool {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/hangman/file_system.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |         create_dir_all(dirname);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/hangman-883d6f0e5a007847
[INFO] running `Command { std: "docker" "inspect" "3b186e4d3a084d23438d9ed97c102092c868a28fbdd5771cbc9d5e6ec8e95e0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b186e4d3a084d23438d9ed97c102092c868a28fbdd5771cbc9d5e6ec8e95e0c", kill_on_drop: false }`
[INFO] [stdout] 3b186e4d3a084d23438d9ed97c102092c868a28fbdd5771cbc9d5e6ec8e95e0c