[INFO] cloning repository https://github.com/MahanthMohan/Serializer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MahanthMohan/Serializer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMahanthMohan%2FSerializer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMahanthMohan%2FSerializer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] def5dc38e13e4ff4c85b3202e315b75ad0caa24d
[INFO] checking MahanthMohan/Serializer against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMahanthMohan%2FSerializer" "/workspace/builds/worker-30/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-30/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MahanthMohan/Serializer on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MahanthMohan/Serializer
[INFO] finished tweaking git repo https://github.com/MahanthMohan/Serializer
[INFO] tweaked toml for git repo https://github.com/MahanthMohan/Serializer written to /workspace/builds/worker-30/source/Cargo.toml
[INFO] crate git repo https://github.com/MahanthMohan/Serializer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a5c66c45401e504e6a2e4c143a76f87a6560c97be78674590be25e3622e30be
[INFO] running `Command { std: "docker" "start" "-a" "0a5c66c45401e504e6a2e4c143a76f87a6560c97be78674590be25e3622e30be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a5c66c45401e504e6a2e4c143a76f87a6560c97be78674590be25e3622e30be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a5c66c45401e504e6a2e4c143a76f87a6560c97be78674590be25e3622e30be", kill_on_drop: false }`
[INFO] [stdout] 0a5c66c45401e504e6a2e4c143a76f87a6560c97be78674590be25e3622e30be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8e082a43a63f0ccb09bf8c905c5b5291160b00c81eb9f9a4da915c35cd8fdf4
[INFO] running `Command { std: "docker" "start" "-a" "b8e082a43a63f0ccb09bf8c905c5b5291160b00c81eb9f9a4da915c35cd8fdf4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking serializer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `Command { std: "docker" "inspect" "b8e082a43a63f0ccb09bf8c905c5b5291160b00c81eb9f9a4da915c35cd8fdf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8e082a43a63f0ccb09bf8c905c5b5291160b00c81eb9f9a4da915c35cd8fdf4", kill_on_drop: false }`
[INFO] [stdout] b8e082a43a63f0ccb09bf8c905c5b5291160b00c81eb9f9a4da915c35cd8fdf4