[INFO] cloning repository https://github.com/twone-lv/rust-by-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/twone-lv/rust-by-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwone-lv%2Frust-by-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwone-lv%2Frust-by-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4f9d3452fa67fd578938e756f7146861279f2616
[INFO] testing twone-lv/rust-by-example against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwone-lv%2Frust-by-example" "/workspace/builds/worker-75/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-75/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/twone-lv/rust-by-example on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/twone-lv/rust-by-example
[INFO] finished tweaking git repo https://github.com/twone-lv/rust-by-example
[INFO] tweaked toml for git repo https://github.com/twone-lv/rust-by-example written to /workspace/builds/worker-75/source/Cargo.toml
[INFO] crate git repo https://github.com/twone-lv/rust-by-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6c50576b43e73d9b96ec31b1fad2fa67fe2bbfdfc6ea2c791ff7b6ee8926c1c8
[INFO] running `Command { std: "docker" "start" "-a" "6c50576b43e73d9b96ec31b1fad2fa67fe2bbfdfc6ea2c791ff7b6ee8926c1c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c50576b43e73d9b96ec31b1fad2fa67fe2bbfdfc6ea2c791ff7b6ee8926c1c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c50576b43e73d9b96ec31b1fad2fa67fe2bbfdfc6ea2c791ff7b6ee8926c1c8", kill_on_drop: false }`
[INFO] [stdout] 6c50576b43e73d9b96ec31b1fad2fa67fe2bbfdfc6ea2c791ff7b6ee8926c1c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d9727b9ab026fc4d680746e5e13d4a65ffe9abf5b24bf73a42460a8241985577
[INFO] running `Command { std: "docker" "start" "-a" "d9727b9ab026fc4d680746e5e13d4a65ffe9abf5b24bf73a42460a8241985577", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling decode-hex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `decoded`
[INFO] [stdout]   --> src/main.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let decoded = hex::decode_to_slice(content, &mut out).expect("Decoding failed");
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_decoded`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.60s
[INFO] running `Command { std: "docker" "inspect" "d9727b9ab026fc4d680746e5e13d4a65ffe9abf5b24bf73a42460a8241985577", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9727b9ab026fc4d680746e5e13d4a65ffe9abf5b24bf73a42460a8241985577", kill_on_drop: false }`
[INFO] [stdout] d9727b9ab026fc4d680746e5e13d4a65ffe9abf5b24bf73a42460a8241985577
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d8df1d9f6324e0ee9a00f9c8c26cca1caced1d81be4132400290fc943745f17d
[INFO] running `Command { std: "docker" "start" "-a" "d8df1d9f6324e0ee9a00f9c8c26cca1caced1d81be4132400290fc943745f17d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling decode-hex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `decoded`
[INFO] [stdout]   --> src/main.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let decoded = hex::decode_to_slice(content, &mut out).expect("Decoding failed");
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_decoded`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.64s
[INFO] running `Command { std: "docker" "inspect" "d8df1d9f6324e0ee9a00f9c8c26cca1caced1d81be4132400290fc943745f17d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8df1d9f6324e0ee9a00f9c8c26cca1caced1d81be4132400290fc943745f17d", kill_on_drop: false }`
[INFO] [stdout] d8df1d9f6324e0ee9a00f9c8c26cca1caced1d81be4132400290fc943745f17d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 43d606d553ee5d59ee052a65ff3f8887899d3cfca0d394bbb502de229b542bf3
[INFO] running `Command { std: "docker" "start" "-a" "43d606d553ee5d59ee052a65ff3f8887899d3cfca0d394bbb502de229b542bf3", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `decoded`
[INFO] [stderr]   --> src/main.rs:55:13
[INFO] [stderr]    |
[INFO] [stderr] 55 |         let decoded = hex::decode_to_slice(content, &mut out).expect("Decoding failed");
[INFO] [stderr]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_decoded`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `decode-hex` (bin "decode-hex" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/decode_hex-abf68a6a15d425d5)
[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" "43d606d553ee5d59ee052a65ff3f8887899d3cfca0d394bbb502de229b542bf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43d606d553ee5d59ee052a65ff3f8887899d3cfca0d394bbb502de229b542bf3", kill_on_drop: false }`
[INFO] [stdout] 43d606d553ee5d59ee052a65ff3f8887899d3cfca0d394bbb502de229b542bf3