[INFO] crate ipaddr 0.0.3 is already in cache
[INFO] extracting crate ipaddr 0.0.3 into work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/reg/ipaddr/0.0.3
[INFO] extracting crate ipaddr 0.0.3 into work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/reg/ipaddr/0.0.3
[INFO] validating manifest of ipaddr-0.0.3 on toolchain master#d99a320cba42f661aebfa1293b7b2ec3603dda75
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ipaddr-0.0.3 on toolchain try#e70472fc501b855c9080f3772432c10fe20b8866
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ipaddr-0.0.3
[INFO] finished frobbing ipaddr-0.0.3
[INFO] frobbed toml for ipaddr-0.0.3 written to work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/reg/ipaddr/0.0.3/Cargo.toml
[INFO] started frobbing ipaddr-0.0.3
[INFO] finished frobbing ipaddr-0.0.3
[INFO] frobbed toml for ipaddr-0.0.3 written to work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/reg/ipaddr/0.0.3/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking ipaddr-0.0.3 against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-5/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/reg/ipaddr/0.0.3:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4a37a93b49081f4a121903ed2a3e344cb66ea39d65fb8fca9f01be98562adca1
[INFO] running `"docker" "start" "-a" "4a37a93b49081f4a121903ed2a3e344cb66ea39d65fb8fca9f01be98562adca1"`
[INFO] [stderr]     Checking ipaddr v0.0.3 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]   --> src/ipv6/network.rs:57:19
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
[INFO] [stderr]    |                   ^ help: consider using `_f` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]   --> src/ipv6/network.rs:63:19
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
[INFO] [stderr]    |                   ^ help: consider using `_f` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]   --> src/ipv6/network.rs:57:19
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
[INFO] [stderr]    |                   ^ help: consider using `_f` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]   --> src/ipv6/network.rs:63:19
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
[INFO] [stderr]    |                   ^ help: consider using `_f` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/ipv6/address/format.rs:451:9
[INFO] [stderr]     |
[INFO] [stderr] 451 | /         ip.formatter(&mut s)
[INFO] [stderr] 452 | |             .upper_case(true)
[INFO] [stderr] 453 | |             .ellipsis(false)
[INFO] [stderr] 454 | |             .write();
[INFO] [stderr]     | |_____________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.98s
[INFO] running `"docker" "inspect" "4a37a93b49081f4a121903ed2a3e344cb66ea39d65fb8fca9f01be98562adca1"`
[INFO] running `"docker" "rm" "-f" "4a37a93b49081f4a121903ed2a3e344cb66ea39d65fb8fca9f01be98562adca1"`
[INFO] [stdout] 4a37a93b49081f4a121903ed2a3e344cb66ea39d65fb8fca9f01be98562adca1