[INFO] cloning repository https://github.com/Stuv7CB/guessing-game
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Stuv7CB/guessing-game" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStuv7CB%2Fguessing-game", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStuv7CB%2Fguessing-game'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 79e7e7cc602f5ecb3224056c5dfd7f7225971db2
[INFO] testing Stuv7CB/guessing-game against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStuv7CB%2Fguessing-game" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Stuv7CB/guessing-game on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Stuv7CB/guessing-game
[INFO] finished tweaking git repo https://github.com/Stuv7CB/guessing-game
[INFO] tweaked toml for git repo https://github.com/Stuv7CB/guessing-game written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/Stuv7CB/guessing-game already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 877d3971a4ad20ff42e7fdc8c17cf96705ad1da70f227c7a36b8990dcbd36e58
[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" "877d3971a4ad20ff42e7fdc8c17cf96705ad1da70f227c7a36b8990dcbd36e58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "877d3971a4ad20ff42e7fdc8c17cf96705ad1da70f227c7a36b8990dcbd36e58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "877d3971a4ad20ff42e7fdc8c17cf96705ad1da70f227c7a36b8990dcbd36e58", kill_on_drop: false }`
[INFO] [stdout] 877d3971a4ad20ff42e7fdc8c17cf96705ad1da70f227c7a36b8990dcbd36e58
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40f9e9b745ba861d92fc36ed59fc22da159bf03dabfd8714ef92c0031f7152e6
[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" "40f9e9b745ba861d92fc36ed59fc22da159bf03dabfd8714ef92c0031f7152e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.37
[INFO] [stderr]    Compiling bitflags v1.0.1
[INFO] [stderr]    Compiling lazy_static v1.0.0
[INFO] [stderr]    Compiling libloading v0.4.3
[INFO] [stderr]    Compiling cfg-if v0.1.2
[INFO] [stderr]    Compiling num-traits v0.2.0
[INFO] [stderr]    Compiling khronos_api v2.1.0
[INFO] [stderr]    Compiling token_store v0.1.2
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]    Compiling cc v1.0.4
[INFO] [stderr]    Compiling rustc-demangle v0.1.7
[INFO] [stderr]    Compiling byteorder v1.2.1
[INFO] [stderr]    Compiling fixedbitset v0.1.8
[INFO] [stderr]    Compiling serde v1.0.27
[INFO] [stderr]    Compiling smallvec v0.6.0
[INFO] [stderr]    Compiling log v0.4.1
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling petgraph v0.4.11
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling stb_truetype v0.2.2
[INFO] [stderr]    Compiling x11-dl v2.17.3
[INFO] [stderr]    Compiling dlib v0.4.0
[INFO] [stderr]    Compiling wayland-sys v0.12.5
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling memmap v0.6.2
[INFO] [stderr]    Compiling shared_library v0.1.8
[INFO] [stderr]    Compiling num-integer v0.1.36
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling num-complex v0.1.42
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling ordered-float v0.5.0
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling num-iter v0.1.35
[INFO] [stderr]    Compiling wayland-scanner v0.12.5
[INFO] [stderr]    Compiling gl_generator v0.8.0
[INFO] [stderr]    Compiling serde_derive_internals v0.19.0
[INFO] [stderr]    Compiling rusttype v0.4.1
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling num-bigint v0.1.43
[INFO] [stderr]    Compiling daggy v0.5.0
[INFO] [stderr]    Compiling tempfile v2.2.0
[INFO] [stderr]    Compiling conrod_derive v0.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.27
[INFO] [stderr]    Compiling wayland-client v0.12.5
[INFO] [stderr]    Compiling wayland-protocols v0.12.5
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling glutin v0.12.2
[INFO] [stderr]    Compiling glium v0.20.0
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling wayland-kbd v0.13.1
[INFO] [stderr]    Compiling pistoncore-input v0.20.0
[INFO] [stderr]    Compiling wayland-window v0.13.2
[INFO] [stderr]    Compiling winit v0.10.0
[INFO] [stderr]    Compiling backtrace v0.3.5
[INFO] [stderr]    Compiling conrod v0.58.0
[INFO] [stderr]    Compiling guessing-game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> src/app.rs:46:27
[INFO] [stdout]    |
[INFO] [stdout] 46 |         use super::rand::{self, Rng};
[INFO] [stdout]    |                           ^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/main.rs:7:1
[INFO] [stdout]    |
[INFO] [stdout] 7  | extern crate rand;
[INFO] [stdout]    | ------------------ the item `rand` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> src/app.rs:92:27
[INFO] [stdout]    |
[INFO] [stdout] 92 |         use super::rand::{self, Rng};
[INFO] [stdout]    |                           ^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/main.rs:7:1
[INFO] [stdout]    |
[INFO] [stdout] 7  | extern crate rand;
[INFO] [stdout]    | ------------------ the item `rand` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `find_folder` is imported redundantly
[INFO] [stdout]    --> src/app.rs:101:9
[INFO] [stdout]     |
[INFO] [stdout] 101 |     use super::find_folder;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/main.rs:5:1
[INFO] [stdout]     |
[INFO] [stdout] 5   | extern crate find_folder;
[INFO] [stdout]     | ------------------------- the item `find_folder` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 46s
[INFO] running `Command { std: "docker" "inspect" "40f9e9b745ba861d92fc36ed59fc22da159bf03dabfd8714ef92c0031f7152e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40f9e9b745ba861d92fc36ed59fc22da159bf03dabfd8714ef92c0031f7152e6", kill_on_drop: false }`
[INFO] [stdout] 40f9e9b745ba861d92fc36ed59fc22da159bf03dabfd8714ef92c0031f7152e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", 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] 22a20ab9e97f93e00e4d2f2bc07456de9c381306ca300be303f5dacf7ee14d81
[INFO] running `Command { std: "docker" "start" "-a" "22a20ab9e97f93e00e4d2f2bc07456de9c381306ca300be303f5dacf7ee14d81", kill_on_drop: false }`
[INFO] [stderr]    Compiling guessing-game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> src/app.rs:46:27
[INFO] [stdout]    |
[INFO] [stdout] 46 |         use super::rand::{self, Rng};
[INFO] [stdout]    |                           ^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/main.rs:7:1
[INFO] [stdout]    |
[INFO] [stdout] 7  | extern crate rand;
[INFO] [stdout]    | ------------------ the item `rand` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> src/app.rs:92:27
[INFO] [stdout]    |
[INFO] [stdout] 92 |         use super::rand::{self, Rng};
[INFO] [stdout]    |                           ^^^^
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/main.rs:7:1
[INFO] [stdout]    |
[INFO] [stdout] 7  | extern crate rand;
[INFO] [stdout]    | ------------------ the item `rand` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `find_folder` is imported redundantly
[INFO] [stdout]    --> src/app.rs:101:9
[INFO] [stdout]     |
[INFO] [stdout] 101 |     use super::find_folder;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/main.rs:5:1
[INFO] [stdout]     |
[INFO] [stdout] 5   | extern crate find_folder;
[INFO] [stdout]     | ------------------------- the item `find_folder` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `Command { std: "docker" "inspect" "22a20ab9e97f93e00e4d2f2bc07456de9c381306ca300be303f5dacf7ee14d81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22a20ab9e97f93e00e4d2f2bc07456de9c381306ca300be303f5dacf7ee14d81", kill_on_drop: false }`
[INFO] [stdout] 22a20ab9e97f93e00e4d2f2bc07456de9c381306ca300be303f5dacf7ee14d81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+1.49.0" "test" "--frozen", 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] 85db552c402603b5a20fe8e31982dce1f786283b0863826b42cc0957a4dd07bb
[INFO] running `Command { std: "docker" "start" "-a" "85db552c402603b5a20fe8e31982dce1f786283b0863826b42cc0957a4dd07bb", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: the item `rand` is imported redundantly
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/app.rs:46:27
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr] 46 |         use super::rand::{self, Rng};
[INFO] [stdout] 
[INFO] [stderr]    |                           ^^^^
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/main.rs:7:1
[INFO] [stderr]    |
[INFO] [stderr] 7  | extern crate rand;
[INFO] [stderr]    | ------------------ the item `rand` is already imported here
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `rand` is imported redundantly
[INFO] [stderr]   --> src/app.rs:92:27
[INFO] [stderr]    |
[INFO] [stderr] 92 |         use super::rand::{self, Rng};
[INFO] [stderr]    |                           ^^^^
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/main.rs:7:1
[INFO] [stderr]    |
[INFO] [stderr] 7  | extern crate rand;
[INFO] [stderr]    | ------------------ the item `rand` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: the item `find_folder` is imported redundantly
[INFO] [stderr]    --> src/app.rs:101:9
[INFO] [stderr]     |
[INFO] [stderr] 101 |     use super::find_folder;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/main.rs:5:1
[INFO] [stderr]     |
[INFO] [stderr] 5   | extern crate find_folder;
[INFO] [stderr]     | ------------------------- the item `find_folder` is already imported here
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/guessing_game-038417c4d5d3adec
[INFO] running `Command { std: "docker" "inspect" "85db552c402603b5a20fe8e31982dce1f786283b0863826b42cc0957a4dd07bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85db552c402603b5a20fe8e31982dce1f786283b0863826b42cc0957a4dd07bb", kill_on_drop: false }`
[INFO] [stdout] 85db552c402603b5a20fe8e31982dce1f786283b0863826b42cc0957a4dd07bb