[INFO] crate reducer 2.0.0 is already in cache
[INFO] checking reducer-2.0.0 against master#7fb5187d0423f4cd0441526571b8cd61927123c9 for pr-71218
[INFO] extracting crate reducer 2.0.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate reducer 2.0.0 on toolchain 7fb5187d0423f4cd0441526571b8cd61927123c9
[INFO] running `"/workspace/cargo-home/bin/cargo" "+7fb5187d0423f4cd0441526571b8cd61927123c9" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate reducer 2.0.0
[INFO] finished tweaking crates.io crate reducer 2.0.0
[INFO] tweaked toml for crates.io crate reducer 2.0.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+7fb5187d0423f4cd0441526571b8cd61927123c9" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+7fb5187d0423f4cd0441526571b8cd61927123c9" "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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+7fb5187d0423f4cd0441526571b8cd61927123c9" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bb884bd2e9b2079bc0f9466bf99db12d8ea5a25bdabbcadf1d1c45013da0940b
[INFO] running `"docker" "start" "-a" "bb884bd2e9b2079bc0f9466bf99db12d8ea5a25bdabbcadf1d1c45013da0940b"`
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling proc-macro-nested v0.1.4
[INFO] [stderr]     Checking futures-core v0.3.4
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking futures-sink v0.3.4
[INFO] [stderr]     Checking futures-task v0.3.4
[INFO] [stderr]     Checking futures-io v0.3.4
[INFO] [stderr]     Checking predicates-core v1.0.0
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking downcast v0.10.0
[INFO] [stderr]     Checking fragile v0.3.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking float-cmp v0.6.0
[INFO] [stderr]     Checking predicates-tree v1.0.0
[INFO] [stderr]     Checking futures-channel v0.3.4
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking predicates v1.0.4
[INFO] [stderr]    Compiling derive_deref v1.1.0
[INFO] [stderr]    Compiling derivative v1.0.4
[INFO] [stderr]     Checking bstr v0.2.12
[INFO] [stderr]     Checking serde_json v1.0.51
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking tinytemplate v1.0.3
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling pin-project-internal v0.4.9
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling mockall_derive v0.6.0
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking pin-project v0.4.9
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking reducer v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking mockall v0.6.0
[INFO] [stderr]     Checking criterion v0.3.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 51s
[INFO] running `"docker" "inspect" "bb884bd2e9b2079bc0f9466bf99db12d8ea5a25bdabbcadf1d1c45013da0940b"`
[INFO] running `"docker" "rm" "-f" "bb884bd2e9b2079bc0f9466bf99db12d8ea5a25bdabbcadf1d1c45013da0940b"`
[INFO] [stdout] bb884bd2e9b2079bc0f9466bf99db12d8ea5a25bdabbcadf1d1c45013da0940b