[INFO] crate poolite 0.7.1 is already in cache
[INFO] extracting crate poolite 0.7.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/poolite/0.7.1
[INFO] extracting crate poolite 0.7.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/poolite/0.7.1
[INFO] validating manifest of poolite-0.7.1 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of poolite-0.7.1 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing poolite-0.7.1
[INFO] removed 0 missing tests
[INFO] finished frobbing poolite-0.7.1
[INFO] frobbed toml for poolite-0.7.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/poolite/0.7.1/Cargo.toml
[INFO] started frobbing poolite-0.7.1
[INFO] removed 0 missing tests
[INFO] finished frobbing poolite-0.7.1
[INFO] frobbed toml for poolite-0.7.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/poolite/0.7.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] building poolite-0.7.1 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/poolite/0.7.1:/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=warn" "-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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] d57dc571e8d9a731a3e3cef586ef5c2475117133aca96126178081dd4282d460
[INFO] running `"docker" "start" "-a" "d57dc571e8d9a731a3e3cef586ef5c2475117133aca96126178081dd4282d460"`
[INFO] [stderr]    Compiling crossbeam-utils v0.3.2
[INFO] [stderr]    Compiling owning_ref v0.3.3
[INFO] [stderr]    Compiling mxo_env_logger v0.1.0
[INFO] [stderr]    Compiling parking_lot v0.5.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.4.3
[INFO] [stderr]    Compiling crossbeam-channel v0.1.3
[INFO] [stderr]    Compiling poolite v0.7.1 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `Error` is imported redundantly
[INFO] [stderr]    --> src/lib.rs:221:13
[INFO] [stderr]     |
[INFO] [stderr] 86  | use std::error::Error;
[INFO] [stderr]     |     ----------------- the item `Error` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 221 |         use std::error::Error;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.22s
[INFO] running `"docker" "inspect" "d57dc571e8d9a731a3e3cef586ef5c2475117133aca96126178081dd4282d460"`
[INFO] running `"docker" "rm" "-f" "d57dc571e8d9a731a3e3cef586ef5c2475117133aca96126178081dd4282d460"`
[INFO] [stdout] d57dc571e8d9a731a3e3cef586ef5c2475117133aca96126178081dd4282d460
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/poolite/0.7.1:/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=warn" "-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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 29d4aa912caf9557c614b65689e6d1a9f01e0b70f3f954ae2c8d36713420d511
[INFO] running `"docker" "start" "-a" "29d4aa912caf9557c614b65689e6d1a9f01e0b70f3f954ae2c8d36713420d511"`
[INFO] [stderr]    Compiling poolite v0.7.1 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `Error` is imported redundantly
[INFO] [stderr]    --> src/lib.rs:221:13
[INFO] [stderr]     |
[INFO] [stderr] 86  | use std::error::Error;
[INFO] [stderr]     |     ----------------- the item `Error` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 221 |         use std::error::Error;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.43s
[INFO] running `"docker" "inspect" "29d4aa912caf9557c614b65689e6d1a9f01e0b70f3f954ae2c8d36713420d511"`
[INFO] running `"docker" "rm" "-f" "29d4aa912caf9557c614b65689e6d1a9f01e0b70f3f954ae2c8d36713420d511"`
[INFO] [stdout] 29d4aa912caf9557c614b65689e6d1a9f01e0b70f3f954ae2c8d36713420d511