[INFO] fetching crate serde_cbor_2 0.12.0-dev...
[INFO] checking serde_cbor_2-0.12.0-dev against master#f167efad2f51088d86180ee89177b3d7c9e7c2f5 for pr-129543
[INFO] extracting crate serde_cbor_2 0.12.0-dev into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate serde_cbor_2 0.12.0-dev on toolchain f167efad2f51088d86180ee89177b3d7c9e7c2f5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_cbor_2 0.12.0-dev
[INFO] finished tweaking crates.io crate serde_cbor_2 0.12.0-dev
[INFO] tweaked toml for crates.io crate serde_cbor_2 0.12.0-dev written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate serde_cbor_2 0.12.0-dev 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" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 78bca881fa2a10411b086092df089f31cdd6937e9f48e2e225b6f023be3f5a5b
[INFO] running `Command { std: "docker" "start" "-a" "78bca881fa2a10411b086092df089f31cdd6937e9f48e2e225b6f023be3f5a5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "78bca881fa2a10411b086092df089f31cdd6937e9f48e2e225b6f023be3f5a5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78bca881fa2a10411b086092df089f31cdd6937e9f48e2e225b6f023be3f5a5b", kill_on_drop: false }`
[INFO] [stdout] 78bca881fa2a10411b086092df089f31cdd6937e9f48e2e225b6f023be3f5a5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b5b227451f93818714164a615f2a14d02ef626db3a20b5cc737fbfb2b11ed40b
[INFO] running `Command { std: "docker" "start" "-a" "b5b227451f93818714164a615f2a14d02ef626db3a20b5cc737fbfb2b11ed40b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling serde v1.0.144
[INFO] [stderr]    Compiling serde_derive v1.0.144
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking serde_cbor_2 v0.12.0-dev (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.42s
[INFO] running `Command { std: "docker" "inspect" "b5b227451f93818714164a615f2a14d02ef626db3a20b5cc737fbfb2b11ed40b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5b227451f93818714164a615f2a14d02ef626db3a20b5cc737fbfb2b11ed40b", kill_on_drop: false }`
[INFO] [stdout] b5b227451f93818714164a615f2a14d02ef626db3a20b5cc737fbfb2b11ed40b