[INFO] fetching crate buffett-budget 0.1.2...
[INFO] checking buffett-budget-0.1.2 against master#914adf04af1c1a984707f778da3d04590c03d144 for pr-72331
[INFO] extracting crate buffett-budget 0.1.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate buffett-budget 0.1.2 on toolchain 914adf04af1c1a984707f778da3d04590c03d144
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate buffett-budget 0.1.2
[INFO] finished tweaking crates.io crate buffett-budget 0.1.2
[INFO] tweaked toml for crates.io crate buffett-budget 0.1.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+914adf04af1c1a984707f778da3d04590c03d144" "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] abc909ba988509db48cd676e98a07d0b78ae50b059e2c8e8ecb01af5a3ba12e8
[INFO] running `"docker" "start" "-a" "abc909ba988509db48cd676e98a07d0b78ae50b059e2c8e8ecb01af5a3ba12e8"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling syn v1.0.23
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking bs58 v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking buffett-interface v0.1.0
[INFO] [stderr]     Checking buffett-budget v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/budget.rs:107:13
[INFO] [stderr]     |
[INFO] [stderr] 107 |             mem::replace(self, budget);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/budget.rs:107:13
[INFO] [stderr]     |
[INFO] [stderr] 107 |             mem::replace(self, budget);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.52s
[INFO] running `"docker" "inspect" "abc909ba988509db48cd676e98a07d0b78ae50b059e2c8e8ecb01af5a3ba12e8"`
[INFO] running `"docker" "rm" "-f" "abc909ba988509db48cd676e98a07d0b78ae50b059e2c8e8ecb01af5a3ba12e8"`
[INFO] [stdout] abc909ba988509db48cd676e98a07d0b78ae50b059e2c8e8ecb01af5a3ba12e8