[INFO] fetching crate lmdb-zero 0.4.4...
[INFO] extracting crate lmdb-zero 0.4.4 into work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/lmdb-zero/0.4.4
[INFO] extracting crate lmdb-zero 0.4.4 into work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/lmdb-zero/0.4.4
[INFO] validating manifest of lmdb-zero-0.4.4 on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of lmdb-zero-0.4.4 on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-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-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/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-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/lmdb-zero/0.4.4/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] building lmdb-zero-0.4.4 against master#c8865d8e195813ade6b84434ac9f8850e7112d1a for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-2/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "build" "--frozen"`
[INFO] [stdout] 95431d982a70c98f340c9e603b2fff78cf39a14690d67005867a4a1e47033f36
[INFO] running `"docker" "start" "-a" "95431d982a70c98f340c9e603b2fff78cf39a14690d67005867a4a1e47033f36"`
[INFO] [stderr]    Compiling gcc v0.3.39
[INFO] [stderr]    Compiling libc v0.2.18
[INFO] [stderr]    Compiling supercow v0.1.0
[INFO] [stderr]    Compiling liblmdb-sys v0.2.2
[INFO] [stderr]    Compiling 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]     Finished dev [unoptimized + debuginfo] target(s) in 6.87s
[INFO] running `"docker" "inspect" "95431d982a70c98f340c9e603b2fff78cf39a14690d67005867a4a1e47033f36"`
[INFO] running `"docker" "rm" "-f" "95431d982a70c98f340c9e603b2fff78cf39a14690d67005867a4a1e47033f36"`
[INFO] [stdout] 95431d982a70c98f340c9e603b2fff78cf39a14690d67005867a4a1e47033f36
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-2/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 60cf7a5a52087c0513a7175071c1f9d0bcc8376489e4a003ed31697f0344d836
[INFO] running `"docker" "start" "-a" "60cf7a5a52087c0513a7175071c1f9d0bcc8376489e4a003ed31697f0344d836"`
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling tempdir v0.3.4
[INFO] [stderr]    Compiling 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]     Finished dev [unoptimized + debuginfo] target(s) in 4.30s
[INFO] running `"docker" "inspect" "60cf7a5a52087c0513a7175071c1f9d0bcc8376489e4a003ed31697f0344d836"`
[INFO] running `"docker" "rm" "-f" "60cf7a5a52087c0513a7175071c1f9d0bcc8376489e4a003ed31697f0344d836"`
[INFO] [stdout] 60cf7a5a52087c0513a7175071c1f9d0bcc8376489e4a003ed31697f0344d836