[INFO] crate tk-bufstream 0.3.0 is already in cache
[INFO] extracting crate tk-bufstream 0.3.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/tk-bufstream/0.3.0
[INFO] extracting crate tk-bufstream 0.3.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/tk-bufstream/0.3.0
[INFO] validating manifest of tk-bufstream-0.3.0 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 tk-bufstream-0.3.0 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 tk-bufstream-0.3.0
[INFO] finished frobbing tk-bufstream-0.3.0
[INFO] frobbed toml for tk-bufstream-0.3.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/tk-bufstream/0.3.0/Cargo.toml
[INFO] started frobbing tk-bufstream-0.3.0
[INFO] finished frobbing tk-bufstream-0.3.0
[INFO] frobbed toml for tk-bufstream-0.3.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/tk-bufstream/0.3.0/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] [stderr]     Blocking waiting for file lock on package cache lock
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing tk-bufstream-0.3.0 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/tk-bufstream/0.3.0:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] bc3671e96c88fcf38a33078afeebab5a28684e14084a89274fc55859f6bb9aeb
[INFO] running `"docker" "start" "-a" "bc3671e96c88fcf38a33078afeebab5a28684e14084a89274fc55859f6bb9aeb"`
[INFO] [stderr]    Compiling tk-bufstream v0.3.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `"docker" "inspect" "bc3671e96c88fcf38a33078afeebab5a28684e14084a89274fc55859f6bb9aeb"`
[INFO] running `"docker" "rm" "-f" "bc3671e96c88fcf38a33078afeebab5a28684e14084a89274fc55859f6bb9aeb"`
[INFO] [stdout] bc3671e96c88fcf38a33078afeebab5a28684e14084a89274fc55859f6bb9aeb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/tk-bufstream/0.3.0:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 8b56bb6d82dfb62457c8221b67b845c2254f85ed2ac2cf4760c44a45c7df7e46
[INFO] running `"docker" "start" "-a" "8b56bb6d82dfb62457c8221b67b845c2254f85ed2ac2cf4760c44a45c7df7e46"`
[INFO] [stderr]    Compiling tk-bufstream v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::str`
[INFO] [stderr]  --> examples/raw_echo.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::str;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.89s
[INFO] running `"docker" "inspect" "8b56bb6d82dfb62457c8221b67b845c2254f85ed2ac2cf4760c44a45c7df7e46"`
[INFO] running `"docker" "rm" "-f" "8b56bb6d82dfb62457c8221b67b845c2254f85ed2ac2cf4760c44a45c7df7e46"`
[INFO] [stdout] 8b56bb6d82dfb62457c8221b67b845c2254f85ed2ac2cf4760c44a45c7df7e46
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/tk-bufstream/0.3.0:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 4922f0492064019ed4bf4872bcbf4e50ff11312056b651d6b1b205399bfc19bf
[INFO] running `"docker" "start" "-a" "4922f0492064019ed4bf4872bcbf4e50ff11312056b651d6b1b205399bfc19bf"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tk_bufstream-cd53b482c4523917
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test mock::test::mock_data ... ok
[INFO] [stdout] test mock::test::mock ... 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 tk_bufstream
[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" "4922f0492064019ed4bf4872bcbf4e50ff11312056b651d6b1b205399bfc19bf"`
[INFO] running `"docker" "rm" "-f" "4922f0492064019ed4bf4872bcbf4e50ff11312056b651d6b1b205399bfc19bf"`
[INFO] [stdout] 4922f0492064019ed4bf4872bcbf4e50ff11312056b651d6b1b205399bfc19bf