[INFO] cloning repository https://github.com/valeshgopal/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/valeshgopal/rust_concatenate_strings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvaleshgopal%2Frust_concatenate_strings", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvaleshgopal%2Frust_concatenate_strings'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3683f63a4d92b3477470f68d3eece9b48e017a8c
[INFO] testing valeshgopal/rust_concatenate_strings against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvaleshgopal%2Frust_concatenate_strings" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/valeshgopal/rust_concatenate_strings
[INFO] finished tweaking git repo https://github.com/valeshgopal/rust_concatenate_strings
[INFO] tweaked toml for git repo https://github.com/valeshgopal/rust_concatenate_strings written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/valeshgopal/rust_concatenate_strings on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/valeshgopal/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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e4d098c6bedfd1ed808c072fadbfa4cb5f4ff67aa8b8ee7efd49a2425d0bde9c
[INFO] running `Command { std: "docker" "start" "-a" "e4d098c6bedfd1ed808c072fadbfa4cb5f4ff67aa8b8ee7efd49a2425d0bde9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4d098c6bedfd1ed808c072fadbfa4cb5f4ff67aa8b8ee7efd49a2425d0bde9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4d098c6bedfd1ed808c072fadbfa4cb5f4ff67aa8b8ee7efd49a2425d0bde9c", kill_on_drop: false }`
[INFO] [stdout] e4d098c6bedfd1ed808c072fadbfa4cb5f4ff67aa8b8ee7efd49a2425d0bde9c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d8b7f23488d52284f7709861aae6e01783bee3da59a7aff9f162a1e141c9c5e
[INFO] running `Command { std: "docker" "start" "-a" "4d8b7f23488d52284f7709861aae6e01783bee3da59a7aff9f162a1e141c9c5e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_project v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "4d8b7f23488d52284f7709861aae6e01783bee3da59a7aff9f162a1e141c9c5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d8b7f23488d52284f7709861aae6e01783bee3da59a7aff9f162a1e141c9c5e", kill_on_drop: false }`
[INFO] [stdout] 4d8b7f23488d52284f7709861aae6e01783bee3da59a7aff9f162a1e141c9c5e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10ff2c414b6bcc368d1975c0fdba2e4f79251add5fc92b2953ee2b9052191e5c
[INFO] running `Command { std: "docker" "start" "-a" "10ff2c414b6bcc368d1975c0fdba2e4f79251add5fc92b2953ee2b9052191e5c", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_project v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "10ff2c414b6bcc368d1975c0fdba2e4f79251add5fc92b2953ee2b9052191e5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10ff2c414b6bcc368d1975c0fdba2e4f79251add5fc92b2953ee2b9052191e5c", kill_on_drop: false }`
[INFO] [stdout] 10ff2c414b6bcc368d1975c0fdba2e4f79251add5fc92b2953ee2b9052191e5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9c1d8a57a60e958dbfdadb9488b179ed34ac1609a47fc52ff62f78de9a8a36ed
[INFO] running `Command { std: "docker" "start" "-a" "9c1d8a57a60e958dbfdadb9488b179ed34ac1609a47fc52ff62f78de9a8a36ed", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_project-25bcf26264c2079a)
[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" "9c1d8a57a60e958dbfdadb9488b179ed34ac1609a47fc52ff62f78de9a8a36ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c1d8a57a60e958dbfdadb9488b179ed34ac1609a47fc52ff62f78de9a8a36ed", kill_on_drop: false }`
[INFO] [stdout] 9c1d8a57a60e958dbfdadb9488b179ed34ac1609a47fc52ff62f78de9a8a36ed