[INFO] fetching crate serde-aco 0.7.0...
[INFO] checking serde-aco-0.7.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate serde-aco 0.7.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate serde-aco 0.7.0
[INFO] finished tweaking crates.io crate serde-aco 0.7.0
[INFO] tweaked toml for crates.io crate serde-aco 0.7.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde-aco 0.7.0 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate serde-aco 0.7.0 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde-aco-derive v0.7.0
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 58a9d6e7a070611f3c3d05f75c484c3ae2255d8e973852aba3f027d40fc8c8dc
[INFO] running `Command { std: "docker" "start" "-a" "58a9d6e7a070611f3c3d05f75c484c3ae2255d8e973852aba3f027d40fc8c8dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "58a9d6e7a070611f3c3d05f75c484c3ae2255d8e973852aba3f027d40fc8c8dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58a9d6e7a070611f3c3d05f75c484c3ae2255d8e973852aba3f027d40fc8c8dc", kill_on_drop: false }`
[INFO] [stdout] 58a9d6e7a070611f3c3d05f75c484c3ae2255d8e973852aba3f027d40fc8c8dc
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf2ebd2c7869f4bbf8fee2ef9bf25fe0443b4e30f2fb54cf49ab25c836ccffd1
[INFO] running `Command { std: "docker" "start" "-a" "bf2ebd2c7869f4bbf8fee2ef9bf25fe0443b4e30f2fb54cf49ab25c836ccffd1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking assert_matches v1.5.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling serde-aco-derive v0.7.0
[INFO] [stderr]     Checking serde_bytes v0.11.17
[INFO] [stderr]     Checking serde-aco v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.96s
[INFO] running `Command { std: "docker" "inspect" "bf2ebd2c7869f4bbf8fee2ef9bf25fe0443b4e30f2fb54cf49ab25c836ccffd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf2ebd2c7869f4bbf8fee2ef9bf25fe0443b4e30f2fb54cf49ab25c836ccffd1", kill_on_drop: false }`
[INFO] [stdout] bf2ebd2c7869f4bbf8fee2ef9bf25fe0443b4e30f2fb54cf49ab25c836ccffd1