[INFO] cloning repository https://github.com/rootabeta/Greeter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rootabeta/Greeter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frootabeta%2FGreeter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frootabeta%2FGreeter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 859642ebdd3a9463fc53a2a89e8c7fdb811d8d43
[INFO] checking rootabeta/Greeter against try#51de2e90f91fdec6cf64ff542a4e15b9c177a797 for pr-147294
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frootabeta%2FGreeter" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/rootabeta/Greeter
[INFO] finished tweaking git repo https://github.com/rootabeta/Greeter
[INFO] tweaked toml for git repo https://github.com/rootabeta/Greeter written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rootabeta/Greeter on toolchain 51de2e90f91fdec6cf64ff542a4e15b9c177a797
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+51de2e90f91fdec6cf64ff542a4e15b9c177a797" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rootabeta/Greeter 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" "+51de2e90f91fdec6cf64ff542a4e15b9c177a797" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.190
[INFO] [stderr]   Downloaded serde v1.0.190
[INFO] [stderr]   Downloaded toml v0.8.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+51de2e90f91fdec6cf64ff542a4e15b9c177a797" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fae7ceadd5ce528fa4c37205d003a50afa128a9e9e0d2e0dccc7654556d05fe6
[INFO] running `Command { std: "docker" "start" "-a" "fae7ceadd5ce528fa4c37205d003a50afa128a9e9e0d2e0dccc7654556d05fe6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fae7ceadd5ce528fa4c37205d003a50afa128a9e9e0d2e0dccc7654556d05fe6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fae7ceadd5ce528fa4c37205d003a50afa128a9e9e0d2e0dccc7654556d05fe6", kill_on_drop: false }`
[INFO] [stdout] fae7ceadd5ce528fa4c37205d003a50afa128a9e9e0d2e0dccc7654556d05fe6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+51de2e90f91fdec6cf64ff542a4e15b9c177a797" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 203c43a57c8a9b3c71fcbc5e401284cb41dff0d6ac45179d4d58ae4e1d007e6f
[INFO] running `Command { std: "docker" "start" "-a" "203c43a57c8a9b3c71fcbc5e401284cb41dff0d6ac45179d4d58ae4e1d007e6f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling serde v1.0.190
[INFO] [stderr]     Checking hashbrown v0.14.2
[INFO] [stderr]    Compiling rustls v0.21.8
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking webpki-roots v0.25.2
[INFO] [stderr]     Checking xml-rs v0.8.19
[INFO] [stderr]    Compiling serde_derive v1.0.190
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking indexmap v2.1.0
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking thiserror v1.0.50
[INFO] [stderr]    Compiling ring v0.17.5
[INFO] [stderr]     Checking toml_datetime v0.6.5
[INFO] [stderr]     Checking serde_spanned v0.6.4
[INFO] [stderr]     Checking serde-xml-rs v0.6.0
[INFO] [stderr]     Checking toml_edit v0.20.7
[INFO] [stderr]     Checking rustls-webpki v0.101.7
[INFO] [stderr]     Checking sct v0.7.1
[INFO] [stderr]     Checking toml v0.8.6
[INFO] [stderr]     Checking ureq v2.8.0
[INFO] [stderr]     Checking welcome_script v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.13s
[INFO] running `Command { std: "docker" "inspect" "203c43a57c8a9b3c71fcbc5e401284cb41dff0d6ac45179d4d58ae4e1d007e6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "203c43a57c8a9b3c71fcbc5e401284cb41dff0d6ac45179d4d58ae4e1d007e6f", kill_on_drop: false }`
[INFO] [stdout] 203c43a57c8a9b3c71fcbc5e401284cb41dff0d6ac45179d4d58ae4e1d007e6f