[INFO] crate lmdb-zero 0.4.4 is already in cache
[INFO] extracting crate lmdb-zero 0.4.4 into work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/lmdb-zero/0.4.4
[INFO] extracting crate lmdb-zero 0.4.4 into work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/reg/lmdb-zero/0.4.4
[INFO] validating manifest of lmdb-zero-0.4.4 on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of lmdb-zero-0.4.4 on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing lmdb-zero-0.4.4
[INFO] finished frobbing lmdb-zero-0.4.4
[INFO] frobbed toml for lmdb-zero-0.4.4 written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/lmdb-zero/0.4.4/Cargo.toml
[INFO] started frobbing lmdb-zero-0.4.4
[INFO] finished frobbing lmdb-zero-0.4.4
[INFO] frobbed toml for lmdb-zero-0.4.4 written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/reg/lmdb-zero/0.4.4/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking lmdb-zero-0.4.4 against master#5f9c0448dde167128d668da4555879f64e56af1d for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-2/master#5f9c0448dde167128d668da4555879f64e56af1d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/lmdb-zero/0.4.4:/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" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b8ab28722982ed2c077e711819c2a6d9a10a465a9766174ffc20f41ada145c18
[INFO] running `"docker" "start" "-a" "b8ab28722982ed2c077e711819c2a6d9a10a465a9766174ffc20f41ada145c18"`
[INFO] [stderr]    Compiling gcc v0.3.39
[INFO] [stderr]     Checking libc v0.2.18
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]    Compiling liblmdb-sys v0.2.2
[INFO] [stderr]     Checking tempdir v0.3.4
[INFO] [stderr]     Checking lmdb-zero v0.4.4 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `env` is imported redundantly
[INFO] [stderr]    --> src/dbi.rs:706:17
[INFO] [stderr]     |
[INFO] [stderr] 19  | use env::{self, Environment};
[INFO] [stderr]     |           ---- the item `env` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 706 |             use env;
[INFO] [stderr]     |                 ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `env` is imported redundantly
[INFO] [stderr]    --> src/dbi.rs:769:13
[INFO] [stderr]     |
[INFO] [stderr] 19  | use env::{self, Environment};
[INFO] [stderr]     |           ---- the item `env` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 769 |         use env;
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `env` is imported redundantly
[INFO] [stderr]    --> src/dbi.rs:939:13
[INFO] [stderr]     |
[INFO] [stderr] 19  | use env::{self, Environment};
[INFO] [stderr]     |           ---- the item `env` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 939 |         use env;
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `env` is imported redundantly
[INFO] [stderr]    --> src/dbi.rs:706:17
[INFO] [stderr]     |
[INFO] [stderr] 19  | use env::{self, Environment};
[INFO] [stderr]     |           ---- the item `env` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 706 |             use env;
[INFO] [stderr]     |                 ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `env` is imported redundantly
[INFO] [stderr]    --> src/dbi.rs:769:13
[INFO] [stderr]     |
[INFO] [stderr] 19  | use env::{self, Environment};
[INFO] [stderr]     |           ---- the item `env` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 769 |         use env;
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `env` is imported redundantly
[INFO] [stderr]    --> src/dbi.rs:939:13
[INFO] [stderr]     |
[INFO] [stderr] 19  | use env::{self, Environment};
[INFO] [stderr]     |           ---- the item `env` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 939 |         use env;
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.48s
[INFO] running `"docker" "inspect" "b8ab28722982ed2c077e711819c2a6d9a10a465a9766174ffc20f41ada145c18"`
[INFO] running `"docker" "rm" "-f" "b8ab28722982ed2c077e711819c2a6d9a10a465a9766174ffc20f41ada145c18"`
[INFO] [stdout] b8ab28722982ed2c077e711819c2a6d9a10a465a9766174ffc20f41ada145c18