[INFO] crate prost-amino-derive 0.4.0 is already in cache
[INFO] checking prost-amino-derive-0.4.0 against try#ba14a92a10441c4b839ce71e6ef5f7a48bbff18f for prs-64470-and-65389
[INFO] extracting crate prost-amino-derive 0.4.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate prost-amino-derive 0.4.0 on toolchain ba14a92a10441c4b839ce71e6ef5f7a48bbff18f
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba14a92a10441c4b839ce71e6ef5f7a48bbff18f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate prost-amino-derive 0.4.0
[INFO] finished tweaking crates.io crate prost-amino-derive 0.4.0
[INFO] tweaked toml for crates.io crate prost-amino-derive 0.4.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba14a92a10441c4b839ce71e6ef5f7a48bbff18f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba14a92a10441c4b839ce71e6ef5f7a48bbff18f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+ba14a92a10441c4b839ce71e6ef5f7a48bbff18f" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 2e47ce2e401599e7086a40559b675f0af70350c5ad384e09e9c6b7e7c5e69ff7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "2e47ce2e401599e7086a40559b675f0af70350c5ad384e09e9c6b7e7c5e69ff7"`
[INFO] [stderr]     Checking syn v0.14.9
[INFO] [stderr]     Checking prost-amino-derive v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]    --> src/lib.rs:579:9
[INFO] [stderr]     |
[INFO] [stderr] 579 |     use std::fmt;
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::error`
[INFO] [stderr]    --> src/lib.rs:581:9
[INFO] [stderr]     |
[INFO] [stderr] 581 |     use std::error;
[INFO] [stderr]     |         ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.61s
[INFO] running `"docker" "inspect" "2e47ce2e401599e7086a40559b675f0af70350c5ad384e09e9c6b7e7c5e69ff7"`
[INFO] running `"docker" "rm" "-f" "2e47ce2e401599e7086a40559b675f0af70350c5ad384e09e9c6b7e7c5e69ff7"`
[INFO] [stdout] 2e47ce2e401599e7086a40559b675f0af70350c5ad384e09e9c6b7e7c5e69ff7