[INFO] cloning repository https://github.com/joelparkerhenderson/demo-rust-string-issues
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/joelparkerhenderson/demo-rust-string-issues" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoelparkerhenderson%2Fdemo-rust-string-issues", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoelparkerhenderson%2Fdemo-rust-string-issues'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1d6d096b220bd2e13f9cb7555255754200eebde7
[INFO] checking joelparkerhenderson/demo-rust-string-issues against master#f8c27dfe1a2e7fb538fd91dad53de06992c7c967 for pr-138915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoelparkerhenderson%2Fdemo-rust-string-issues" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/joelparkerhenderson/demo-rust-string-issues on toolchain f8c27dfe1a2e7fb538fd91dad53de06992c7c967
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f8c27dfe1a2e7fb538fd91dad53de06992c7c967" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/joelparkerhenderson/demo-rust-string-issues
[INFO] finished tweaking git repo https://github.com/joelparkerhenderson/demo-rust-string-issues
[INFO] tweaked toml for git repo https://github.com/joelparkerhenderson/demo-rust-string-issues written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/joelparkerhenderson/demo-rust-string-issues 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" "+f8c27dfe1a2e7fb538fd91dad53de06992c7c967" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+f8c27dfe1a2e7fb538fd91dad53de06992c7c967" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a41cf76c6495345c786a3e57111739be061b95603f4e225705936b0dba81b7d7
[INFO] running `Command { std: "docker" "start" "-a" "a41cf76c6495345c786a3e57111739be061b95603f4e225705936b0dba81b7d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a41cf76c6495345c786a3e57111739be061b95603f4e225705936b0dba81b7d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a41cf76c6495345c786a3e57111739be061b95603f4e225705936b0dba81b7d7", kill_on_drop: false }`
[INFO] [stdout] a41cf76c6495345c786a3e57111739be061b95603f4e225705936b0dba81b7d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+f8c27dfe1a2e7fb538fd91dad53de06992c7c967" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 30e9a0cdfd2c1253aebc83a1144d0e0604083b1ec37ed60ef196979221acb03a
[INFO] running `Command { std: "docker" "start" "-a" "30e9a0cdfd2c1253aebc83a1144d0e0604083b1ec37ed60ef196979221acb03a", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-segmentation v1.12.0
[INFO] [stderr]     Checking unicode-reverse v1.0.9
[INFO] [stderr]     Checking demo-rust-string-issues v2.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "30e9a0cdfd2c1253aebc83a1144d0e0604083b1ec37ed60ef196979221acb03a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30e9a0cdfd2c1253aebc83a1144d0e0604083b1ec37ed60ef196979221acb03a", kill_on_drop: false }`
[INFO] [stdout] 30e9a0cdfd2c1253aebc83a1144d0e0604083b1ec37ed60ef196979221acb03a