[INFO] cloning repository https://github.com/Gohla/serde_flexitos
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Gohla/serde_flexitos" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGohla%2Fserde_flexitos", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGohla%2Fserde_flexitos'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a794a2155e1e1f4def6fd3befb185d0598e65185
[INFO] checking Gohla/serde_flexitos against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGohla%2Fserde_flexitos" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Gohla/serde_flexitos on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Gohla/serde_flexitos
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/Gohla/serde_flexitos
[INFO] tweaked toml for git repo https://github.com/Gohla/serde_flexitos written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Gohla/serde_flexitos 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded linkme v0.3.25
[INFO] [stderr]   Downloaded linkme-impl v0.3.25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aa3967707d6e88e6b23471a991fad4d3bd73b94fde7e8302c180c3a36451564b
[INFO] running `Command { std: "docker" "start" "-a" "aa3967707d6e88e6b23471a991fad4d3bd73b94fde7e8302c180c3a36451564b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa3967707d6e88e6b23471a991fad4d3bd73b94fde7e8302c180c3a36451564b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa3967707d6e88e6b23471a991fad4d3bd73b94fde7e8302c180c3a36451564b", kill_on_drop: false }`
[INFO] [stdout] aa3967707d6e88e6b23471a991fad4d3bd73b94fde7e8302c180c3a36451564b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e19410439ccf56d1d57223b31726d252a02271944b4d57291e7b9b0ae3552cd1
[INFO] running `Command { std: "docker" "start" "-a" "e19410439ccf56d1d57223b31726d252a02271944b4d57291e7b9b0ae3552cd1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling linkme-impl v0.3.25
[INFO] [stderr]     Checking linkme v0.3.25
[INFO] [stderr]     Checking erased-serde v0.4.4
[INFO] [stderr]     Checking serde_json v1.0.114
[INFO] [stderr]     Checking serde_flexitos v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.15s
[INFO] running `Command { std: "docker" "inspect" "e19410439ccf56d1d57223b31726d252a02271944b4d57291e7b9b0ae3552cd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e19410439ccf56d1d57223b31726d252a02271944b4d57291e7b9b0ae3552cd1", kill_on_drop: false }`
[INFO] [stdout] e19410439ccf56d1d57223b31726d252a02271944b4d57291e7b9b0ae3552cd1