[INFO] cloning repository https://github.com/0xBitzz/rust_concatenate_strings
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0xBitzz/rust_concatenate_strings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xBitzz%2Frust_concatenate_strings", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xBitzz%2Frust_concatenate_strings'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4ae3678168d3225a2ac7e80706ad6cd9061102d7
[INFO] testing 0xBitzz/rust_concatenate_strings against master#1ef7943ee607160a564655b6596f83670ef95df5 for pr-146098-6
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xBitzz%2Frust_concatenate_strings" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/0xBitzz/rust_concatenate_strings
[INFO] finished tweaking git repo https://github.com/0xBitzz/rust_concatenate_strings
[INFO] tweaked toml for git repo https://github.com/0xBitzz/rust_concatenate_strings written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/0xBitzz/rust_concatenate_strings on toolchain 1ef7943ee607160a564655b6596f83670ef95df5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/0xBitzz/rust_concatenate_strings 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" "+1ef7943ee607160a564655b6596f83670ef95df5" "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-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+1ef7943ee607160a564655b6596f83670ef95df5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5c6e06cb7d394d78237ca58bcd02d2df4c4516be7c3a240ff6ceb8837ae49148
[INFO] running `Command { std: "docker" "start" "-a" "5c6e06cb7d394d78237ca58bcd02d2df4c4516be7c3a240ff6ceb8837ae49148", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c6e06cb7d394d78237ca58bcd02d2df4c4516be7c3a240ff6ceb8837ae49148", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c6e06cb7d394d78237ca58bcd02d2df4c4516be7c3a240ff6ceb8837ae49148", kill_on_drop: false }`
[INFO] [stdout] 5c6e06cb7d394d78237ca58bcd02d2df4c4516be7c3a240ff6ceb8837ae49148
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+1ef7943ee607160a564655b6596f83670ef95df5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c8c6de2a0e3b14888c3f5470a816eb122bf3d62d707205763ca7cdbf1ea76bb0
[INFO] running `Command { std: "docker" "start" "-a" "c8c6de2a0e3b14888c3f5470a816eb122bf3d62d707205763ca7cdbf1ea76bb0", kill_on_drop: false }`
[INFO] [stderr]    Compiling ownership_ref_borrow v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "c8c6de2a0e3b14888c3f5470a816eb122bf3d62d707205763ca7cdbf1ea76bb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8c6de2a0e3b14888c3f5470a816eb122bf3d62d707205763ca7cdbf1ea76bb0", kill_on_drop: false }`
[INFO] [stdout] c8c6de2a0e3b14888c3f5470a816eb122bf3d62d707205763ca7cdbf1ea76bb0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+1ef7943ee607160a564655b6596f83670ef95df5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db187f7ef7560fff307fee46e1bc2ad8c6a15d5389344a7af2979dcb51c39cb1
[INFO] running `Command { std: "docker" "start" "-a" "db187f7ef7560fff307fee46e1bc2ad8c6a15d5389344a7af2979dcb51c39cb1", kill_on_drop: false }`
[INFO] [stderr]    Compiling ownership_ref_borrow v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "db187f7ef7560fff307fee46e1bc2ad8c6a15d5389344a7af2979dcb51c39cb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db187f7ef7560fff307fee46e1bc2ad8c6a15d5389344a7af2979dcb51c39cb1", kill_on_drop: false }`
[INFO] [stdout] db187f7ef7560fff307fee46e1bc2ad8c6a15d5389344a7af2979dcb51c39cb1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+1ef7943ee607160a564655b6596f83670ef95df5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 12ed5c8218c2af52801567e78617d94564ddc0867cae9ea3ce934500c0096d6e
[INFO] running `Command { std: "docker" "start" "-a" "12ed5c8218c2af52801567e78617d94564ddc0867cae9ea3ce934500c0096d6e", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/ownership_ref_borrow-d8fa4f06dc5e280a)
[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" "12ed5c8218c2af52801567e78617d94564ddc0867cae9ea3ce934500c0096d6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12ed5c8218c2af52801567e78617d94564ddc0867cae9ea3ce934500c0096d6e", kill_on_drop: false }`
[INFO] [stdout] 12ed5c8218c2af52801567e78617d94564ddc0867cae9ea3ce934500c0096d6e
