[INFO] cloning repository https://github.com/wulfnb/rust_getting_started
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wulfnb/rust_getting_started" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwulfnb%2Frust_getting_started", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwulfnb%2Frust_getting_started'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dfab08609cf001fe7e5280e6ca0cba5c88a4be69
[INFO] testing wulfnb/rust_getting_started against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwulfnb%2Frust_getting_started" "/workspace/builds/worker-86/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-86/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wulfnb/rust_getting_started on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wulfnb/rust_getting_started
[INFO] finished tweaking git repo https://github.com/wulfnb/rust_getting_started
[INFO] tweaked toml for git repo https://github.com/wulfnb/rust_getting_started written to /workspace/builds/worker-86/source/Cargo.toml
[INFO] crate git repo https://github.com/wulfnb/rust_getting_started already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9877b3851cebca3396c1ecdf4aad8b8e2ae3cf2f55d9bbb6e48792b432dc03fb
[INFO] running `Command { std: "docker" "start" "-a" "9877b3851cebca3396c1ecdf4aad8b8e2ae3cf2f55d9bbb6e48792b432dc03fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9877b3851cebca3396c1ecdf4aad8b8e2ae3cf2f55d9bbb6e48792b432dc03fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9877b3851cebca3396c1ecdf4aad8b8e2ae3cf2f55d9bbb6e48792b432dc03fb", kill_on_drop: false }`
[INFO] [stdout] 9877b3851cebca3396c1ecdf4aad8b8e2ae3cf2f55d9bbb6e48792b432dc03fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 87af35a437c2cf2670d1440ee75f8a538cac0d320f10cef0abcb35a489fc44eb
[INFO] running `Command { std: "docker" "start" "-a" "87af35a437c2cf2670d1440ee75f8a538cac0d320f10cef0abcb35a489fc44eb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling linked-hash-map v0.5.4
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]    Compiling rust_intro v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `run2`
[INFO] [stdout]  --> src/read_file.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn run2() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run3`
[INFO] [stdout]   --> src/read_file.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn run3() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.81s
[INFO] running `Command { std: "docker" "inspect" "87af35a437c2cf2670d1440ee75f8a538cac0d320f10cef0abcb35a489fc44eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87af35a437c2cf2670d1440ee75f8a538cac0d320f10cef0abcb35a489fc44eb", kill_on_drop: false }`
[INFO] [stdout] 87af35a437c2cf2670d1440ee75f8a538cac0d320f10cef0abcb35a489fc44eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 91a4b0c46197c87c841434d73b29c281868fd29dbecdcaf4bfbdb0b743c67d7e
[INFO] running `Command { std: "docker" "start" "-a" "91a4b0c46197c87c841434d73b29c281868fd29dbecdcaf4bfbdb0b743c67d7e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust_intro v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `run2`
[INFO] [stdout]  --> src/read_file.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn run2() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run3`
[INFO] [stdout]   --> src/read_file.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn run3() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.32s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_intro-b4a03f5d17d6562b)
[INFO] running `Command { std: "docker" "inspect" "91a4b0c46197c87c841434d73b29c281868fd29dbecdcaf4bfbdb0b743c67d7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91a4b0c46197c87c841434d73b29c281868fd29dbecdcaf4bfbdb0b743c67d7e", kill_on_drop: false }`
[INFO] [stdout] 91a4b0c46197c87c841434d73b29c281868fd29dbecdcaf4bfbdb0b743c67d7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 654a01b9743a93004fb25fc3a31cffd56cbcbc37dc32fb893f9ee1b771021bf6
[INFO] running `Command { std: "docker" "start" "-a" "654a01b9743a93004fb25fc3a31cffd56cbcbc37dc32fb893f9ee1b771021bf6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: function is never used: `run2`
[INFO] [stderr]  --> src/read_file.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn run2() {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run3`
[INFO] [stderr]   --> src/read_file.rs:15:8
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub fn run3() {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_intro` (bin "rust_intro" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.31s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_intro-b4a03f5d17d6562b)
[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" "654a01b9743a93004fb25fc3a31cffd56cbcbc37dc32fb893f9ee1b771021bf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "654a01b9743a93004fb25fc3a31cffd56cbcbc37dc32fb893f9ee1b771021bf6", kill_on_drop: false }`
[INFO] [stdout] 654a01b9743a93004fb25fc3a31cffd56cbcbc37dc32fb893f9ee1b771021bf6