[INFO] cloning repository https://github.com/Aiden01/bf.rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Aiden01/bf.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAiden01%2Fbf.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAiden01%2Fbf.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f008571b392f4d0f650f6c311497f6ab2867f9c2
[INFO] checking Aiden01/bf.rs against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAiden01%2Fbf.rs" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Aiden01/bf.rs
[INFO] finished tweaking git repo https://github.com/Aiden01/bf.rs
[INFO] tweaked toml for git repo https://github.com/Aiden01/bf.rs written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Aiden01/bf.rs on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Aiden01/bf.rs 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cmdparser v0.2.0
[INFO] [stderr]   Downloaded either v1.5.2
[INFO] [stderr]   Downloaded approx v0.1.1
[INFO] [stderr]   Downloaded rgb v0.8.13
[INFO] [stderr]   Downloaded cgmath v0.16.1
[INFO] [stderr]   Downloaded winconsole v0.10.0
[INFO] [stderr]   Downloaded colored v1.8.0
[INFO] [stderr]   Downloaded memchr v2.2.1
[INFO] [stderr]   Downloaded winapi v0.3.7
[INFO] [stderr]   Downloaded ascii v0.9.2
[INFO] [stderr]   Downloaded rand_core v0.4.0
[INFO] [stderr]   Downloaded num-traits v0.2.8
[INFO] [stderr]   Downloaded autocfg v0.1.5
[INFO] [stderr]   Downloaded libc v0.2.60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bf1a6e98be60c198622dec281f4501803b885300931d87bf6c175ec61b4183b0
[INFO] running `Command { std: "docker" "start" "-a" "bf1a6e98be60c198622dec281f4501803b885300931d87bf6c175ec61b4183b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf1a6e98be60c198622dec281f4501803b885300931d87bf6c175ec61b4183b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf1a6e98be60c198622dec281f4501803b885300931d87bf6c175ec61b4183b0", kill_on_drop: false }`
[INFO] [stdout] bf1a6e98be60c198622dec281f4501803b885300931d87bf6c175ec61b4183b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 284d9fa62e999ff2ee8ffb768195a6835816709191dd701cba4c5898daeba64a
[INFO] running `Command { std: "docker" "start" "-a" "284d9fa62e999ff2ee8ffb768195a6835816709191dd701cba4c5898daeba64a", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]    Compiling winapi v0.3.7
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking rgb v0.8.13
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking ascii v0.9.2
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]     Checking cmdparser v0.2.0
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]     Checking combine v3.8.1
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking winconsole v0.10.0
[INFO] [stderr]     Checking colored v1.8.0
[INFO] [stderr]     Checking bfrs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `Success` is never constructed
[INFO] [stdout]  --> src/logger.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | enum Importance {
[INFO] [stdout]   |      ---------- variant in this enum
[INFO] [stdout] 7 |     Info,
[INFO] [stdout] 8 |     Success,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `success` is never used
[INFO] [stdout]   --> src/logger.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn success<T: AsRef<str>>(msg: T) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `info` is never used
[INFO] [stdout]   --> src/logger.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn info<T: AsRef<str>>(msg: T) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Success` is never constructed
[INFO] [stdout]  --> src/logger.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | enum Importance {
[INFO] [stdout]   |      ---------- variant in this enum
[INFO] [stdout] 7 |     Info,
[INFO] [stdout] 8 |     Success,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `success` is never used
[INFO] [stdout]   --> src/logger.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn success<T: AsRef<str>>(msg: T) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `info` is never used
[INFO] [stdout]   --> src/logger.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn info<T: AsRef<str>>(msg: T) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/logger.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     io::stdout().flush();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let _ = io::stdout().flush();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/logger.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     io::stdout().flush();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let _ = io::stdout().flush();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.59s
[INFO] running `Command { std: "docker" "inspect" "284d9fa62e999ff2ee8ffb768195a6835816709191dd701cba4c5898daeba64a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "284d9fa62e999ff2ee8ffb768195a6835816709191dd701cba4c5898daeba64a", kill_on_drop: false }`
[INFO] [stdout] 284d9fa62e999ff2ee8ffb768195a6835816709191dd701cba4c5898daeba64a
