[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 beta-2022-04-10 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 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/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" "+beta-2022-04-10" "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" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7e84086715c24759939a36167e0264a3322d86bbbb8452dc229cf6d3a29e3be0
[INFO] running `Command { std: "docker" "start" "-a" "7e84086715c24759939a36167e0264a3322d86bbbb8452dc229cf6d3a29e3be0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e84086715c24759939a36167e0264a3322d86bbbb8452dc229cf6d3a29e3be0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e84086715c24759939a36167e0264a3322d86bbbb8452dc229cf6d3a29e3be0", kill_on_drop: false }`
[INFO] [stdout] 7e84086715c24759939a36167e0264a3322d86bbbb8452dc229cf6d3a29e3be0
[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" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c74e5c5bfcc5b3a2af5c1fbcc3a987843579d6f010a80a310b2a685991f45d2
[INFO] running `Command { std: "docker" "start" "-a" "4c74e5c5bfcc5b3a2af5c1fbcc3a987843579d6f010a80a310b2a685991f45d2", kill_on_drop: false }`
[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 1.94s
[INFO] running `Command { std: "docker" "inspect" "4c74e5c5bfcc5b3a2af5c1fbcc3a987843579d6f010a80a310b2a685991f45d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c74e5c5bfcc5b3a2af5c1fbcc3a987843579d6f010a80a310b2a685991f45d2", kill_on_drop: false }`
[INFO] [stdout] 4c74e5c5bfcc5b3a2af5c1fbcc3a987843579d6f010a80a310b2a685991f45d2
[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" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9ca697d007519b17cdc61c96f14b417c7d98f15e6343efab0ddfc5eb8c5a85e
[INFO] running `Command { std: "docker" "start" "-a" "e9ca697d007519b17cdc61c96f14b417c7d98f15e6343efab0ddfc5eb8c5a85e", 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 0.44s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/decode_hex-49f53287dc3bb8cb)
[INFO] running `Command { std: "docker" "inspect" "e9ca697d007519b17cdc61c96f14b417c7d98f15e6343efab0ddfc5eb8c5a85e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9ca697d007519b17cdc61c96f14b417c7d98f15e6343efab0ddfc5eb8c5a85e", kill_on_drop: false }`
[INFO] [stdout] e9ca697d007519b17cdc61c96f14b417c7d98f15e6343efab0ddfc5eb8c5a85e
[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" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d077ecfb103447ab64b775fb507b45dd9c2f71d79fa0956966fb252e33c99a25
[INFO] running `Command { std: "docker" "start" "-a" "d077ecfb103447ab64b775fb507b45dd9c2f71d79fa0956966fb252e33c99a25", 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 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/decode_hex-49f53287dc3bb8cb)
[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" "d077ecfb103447ab64b775fb507b45dd9c2f71d79fa0956966fb252e33c99a25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d077ecfb103447ab64b775fb507b45dd9c2f71d79fa0956966fb252e33c99a25", kill_on_drop: false }`
[INFO] [stdout] d077ecfb103447ab64b775fb507b45dd9c2f71d79fa0956966fb252e33c99a25