[INFO] cloning repository https://github.com/matt-sellick/substring
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/matt-sellick/substring" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatt-sellick%2Fsubstring", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatt-sellick%2Fsubstring'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9e0328a366e16658cacea43aaf1abe7950195e4c
[INFO] testing matt-sellick/substring 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%2Fmatt-sellick%2Fsubstring" "/workspace/builds/worker-21/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-21/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/matt-sellick/substring 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/matt-sellick/substring
[INFO] finished tweaking git repo https://github.com/matt-sellick/substring
[INFO] tweaked toml for git repo https://github.com/matt-sellick/substring written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] crate git repo https://github.com/matt-sellick/substring 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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] a09a8802441b4db4a721d9da2aa9ccc3318ad874849924eb2886090d4bfee8cf
[INFO] running `Command { std: "docker" "start" "-a" "a09a8802441b4db4a721d9da2aa9ccc3318ad874849924eb2886090d4bfee8cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a09a8802441b4db4a721d9da2aa9ccc3318ad874849924eb2886090d4bfee8cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a09a8802441b4db4a721d9da2aa9ccc3318ad874849924eb2886090d4bfee8cf", kill_on_drop: false }`
[INFO] [stdout] a09a8802441b4db4a721d9da2aa9ccc3318ad874849924eb2886090d4bfee8cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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] f83e7db46b811640a098336c3e21548f5990d340e74f8138c01271c6e1c68c6f
[INFO] running `Command { std: "docker" "start" "-a" "f83e7db46b811640a098336c3e21548f5990d340e74f8138c01271c6e1c68c6f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling substring v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.73s
[INFO] running `Command { std: "docker" "inspect" "f83e7db46b811640a098336c3e21548f5990d340e74f8138c01271c6e1c68c6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f83e7db46b811640a098336c3e21548f5990d340e74f8138c01271c6e1c68c6f", kill_on_drop: false }`
[INFO] [stdout] f83e7db46b811640a098336c3e21548f5990d340e74f8138c01271c6e1c68c6f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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] c0ce1ec79f78a02ae2c091ab605df8c80cc4ee517423c47f2b4458794b639933
[INFO] running `Command { std: "docker" "start" "-a" "c0ce1ec79f78a02ae2c091ab605df8c80cc4ee517423c47f2b4458794b639933", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling substring v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.67s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/substring-47ff8fe763928234)
[INFO] running `Command { std: "docker" "inspect" "c0ce1ec79f78a02ae2c091ab605df8c80cc4ee517423c47f2b4458794b639933", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0ce1ec79f78a02ae2c091ab605df8c80cc4ee517423c47f2b4458794b639933", kill_on_drop: false }`
[INFO] [stdout] c0ce1ec79f78a02ae2c091ab605df8c80cc4ee517423c47f2b4458794b639933
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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] 65976e7557d16cee7680eb359b31fd3ba97b99dd7fd87d1943b507bc1f3bf552
[INFO] running `Command { std: "docker" "start" "-a" "65976e7557d16cee7680eb359b31fd3ba97b99dd7fd87d1943b507bc1f3bf552", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/substring-47ff8fe763928234)
[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" "65976e7557d16cee7680eb359b31fd3ba97b99dd7fd87d1943b507bc1f3bf552", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65976e7557d16cee7680eb359b31fd3ba97b99dd7fd87d1943b507bc1f3bf552", kill_on_drop: false }`
[INFO] [stdout] 65976e7557d16cee7680eb359b31fd3ba97b99dd7fd87d1943b507bc1f3bf552