[INFO] fetching crate sp-serializer 3.0.0...
[INFO] checking sp-serializer-3.0.0 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] extracting crate sp-serializer 3.0.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate sp-serializer 3.0.0 on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sp-serializer 3.0.0
[INFO] finished tweaking crates.io crate sp-serializer 3.0.0
[INFO] tweaked toml for crates.io crate sp-serializer 3.0.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c681df824ec39ac5b3680a8013094d584d8f5a3972ec026a0f4cd62b14983e6
[INFO] running `Command { std: "docker" "start" "-a" "3c681df824ec39ac5b3680a8013094d584d8f5a3972ec026a0f4cd62b14983e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c681df824ec39ac5b3680a8013094d584d8f5a3972ec026a0f4cd62b14983e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c681df824ec39ac5b3680a8013094d584d8f5a3972ec026a0f4cd62b14983e6", kill_on_drop: false }`
[INFO] [stdout] 3c681df824ec39ac5b3680a8013094d584d8f5a3972ec026a0f4cd62b14983e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee2a8309a78dea4f9996ce0e6c7a9aa00f84f037c30e5f7966d5302c0ad9044d
[INFO] running `Command { std: "docker" "start" "-a" "ee2a8309a78dea4f9996ce0e6c7a9aa00f84f037c30e5f7966d5302c0ad9044d", kill_on_drop: false }`
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking sp-serializer v3.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.55s
[INFO] running `Command { std: "docker" "inspect" "ee2a8309a78dea4f9996ce0e6c7a9aa00f84f037c30e5f7966d5302c0ad9044d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee2a8309a78dea4f9996ce0e6c7a9aa00f84f037c30e5f7966d5302c0ad9044d", kill_on_drop: false }`
[INFO] [stdout] ee2a8309a78dea4f9996ce0e6c7a9aa00f84f037c30e5f7966d5302c0ad9044d