[INFO] crate symbolics_calculus 0.1.5 is already in cache
[INFO] extracting crate symbolics_calculus 0.1.5 into work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/reg/symbolics_calculus/0.1.5
[INFO] extracting crate symbolics_calculus 0.1.5 into work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/reg/symbolics_calculus/0.1.5
[INFO] validating manifest of symbolics_calculus-0.1.5 on toolchain master#1891bfa80364eead426517c68de6947b7692e2de
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of symbolics_calculus-0.1.5 on toolchain try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing symbolics_calculus-0.1.5
[INFO] finished frobbing symbolics_calculus-0.1.5
[INFO] frobbed toml for symbolics_calculus-0.1.5 written to work/ex/pr-60261/sources/master#1891bfa80364eead426517c68de6947b7692e2de/reg/symbolics_calculus/0.1.5/Cargo.toml
[INFO] started frobbing symbolics_calculus-0.1.5
[INFO] finished frobbing symbolics_calculus-0.1.5
[INFO] frobbed toml for symbolics_calculus-0.1.5 written to work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/reg/symbolics_calculus/0.1.5/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1891bfa80364eead426517c68de6947b7692e2de-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking symbolics_calculus-0.1.5 against try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a for pr-60261
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60261/worker-5/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60261/sources/try#bfdcf6db3afcce5fe4013023cfa8ba359c5d527a/reg/symbolics_calculus/0.1.5:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+bfdcf6db3afcce5fe4013023cfa8ba359c5d527a-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 2422a97d7d54746e5256b4906d03cea18319314413c23a4f68b2dd2871fa18cc
[INFO] running `"docker" "start" "-a" "2422a97d7d54746e5256b4906d03cea18319314413c23a4f68b2dd2871fa18cc"`
[INFO] [stderr]     Checking symbolics_core v0.1.5
[INFO] [stderr]     Checking symbolics_calculus v0.1.5 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `apply`, `s`
[INFO] [stderr]  --> src/lib.rs:3:22
[INFO] [stderr]   |
[INFO] [stderr] 3 | use symbolics_core::{s, apply};
[INFO] [stderr]   |                      ^  ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `"docker" "inspect" "2422a97d7d54746e5256b4906d03cea18319314413c23a4f68b2dd2871fa18cc"`
[INFO] running `"docker" "rm" "-f" "2422a97d7d54746e5256b4906d03cea18319314413c23a4f68b2dd2871fa18cc"`
[INFO] [stdout] 2422a97d7d54746e5256b4906d03cea18319314413c23a4f68b2dd2871fa18cc