[INFO] crate tower-load-shed 0.1.0 is already in cache
[INFO] extracting crate tower-load-shed 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/tower-load-shed/0.1.0
[INFO] extracting crate tower-load-shed 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tower-load-shed/0.1.0
[INFO] validating manifest of tower-load-shed-0.1.0 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tower-load-shed-0.1.0 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tower-load-shed-0.1.0
[INFO] finished frobbing tower-load-shed-0.1.0
[INFO] frobbed toml for tower-load-shed-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/tower-load-shed/0.1.0/Cargo.toml
[INFO] started frobbing tower-load-shed-0.1.0
[INFO] finished frobbing tower-load-shed-0.1.0
[INFO] frobbed toml for tower-load-shed-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tower-load-shed/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing tower-load-shed-0.1.0 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tower-load-shed/0.1.0:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 8b1fdf9c48ae5a6f17c607f658d5272c05525a6fd0675e8908e4c5a9d7a51498
[INFO] running `"docker" "start" "-a" "8b1fdf9c48ae5a6f17c607f658d5272c05525a6fd0675e8908e4c5a9d7a51498"`
[INFO] [stderr]    Compiling tower-service v0.2.0
[INFO] [stderr]    Compiling tower-layer v0.1.0
[INFO] [stderr]    Compiling tower-load-shed v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `"docker" "inspect" "8b1fdf9c48ae5a6f17c607f658d5272c05525a6fd0675e8908e4c5a9d7a51498"`
[INFO] running `"docker" "rm" "-f" "8b1fdf9c48ae5a6f17c607f658d5272c05525a6fd0675e8908e4c5a9d7a51498"`
[INFO] [stdout] 8b1fdf9c48ae5a6f17c607f658d5272c05525a6fd0675e8908e4c5a9d7a51498
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tower-load-shed/0.1.0:/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] d4af2b8e397d0b18ae3adfe98dd1b28a85cf571a5a3db8a82ac6d244d2dd896b
[INFO] running `"docker" "start" "-a" "d4af2b8e397d0b18ae3adfe98dd1b28a85cf571a5a3db8a82ac6d244d2dd896b"`
[INFO] [stderr]    Compiling tokio-mock-task v0.1.1
[INFO] [stderr]    Compiling tower-test v0.1.0
[INFO] [stderr]    Compiling tower-load-shed v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `Future` is imported redundantly
[INFO] [stderr]   --> tests/load-shed.rs:52:33
[INFO] [stderr]    |
[INFO] [stderr] 1  | use futures::Future;
[INFO] [stderr]    |     --------------- the item `Future` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 52 |     use futures::future::{lazy, Future};
[INFO] [stderr]    |                                 ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `"docker" "inspect" "d4af2b8e397d0b18ae3adfe98dd1b28a85cf571a5a3db8a82ac6d244d2dd896b"`
[INFO] running `"docker" "rm" "-f" "d4af2b8e397d0b18ae3adfe98dd1b28a85cf571a5a3db8a82ac6d244d2dd896b"`
[INFO] [stdout] d4af2b8e397d0b18ae3adfe98dd1b28a85cf571a5a3db8a82ac6d244d2dd896b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tower-load-shed/0.1.0:/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] ebe8b4f9bf83506c6836c5ad4b907fe616889d057b622ffe7ac5e9626d6a6a1a
[INFO] running `"docker" "start" "-a" "ebe8b4f9bf83506c6836c5ad4b907fe616889d057b622ffe7ac5e9626d6a6a1a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tower_load_shed-174aaca6cd5baa86
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/load_shed-dc8afbbc05839aa2
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test when_not_ready ... ok
[INFO] [stdout] test when_ready ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tower-load-shed
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "ebe8b4f9bf83506c6836c5ad4b907fe616889d057b622ffe7ac5e9626d6a6a1a"`
[INFO] running `"docker" "rm" "-f" "ebe8b4f9bf83506c6836c5ad4b907fe616889d057b622ffe7ac5e9626d6a6a1a"`
[INFO] [stdout] ebe8b4f9bf83506c6836c5ad4b907fe616889d057b622ffe7ac5e9626d6a6a1a