[INFO] crate pretty-good 0.2.2 is already in cache
[INFO] extracting crate pretty-good 0.2.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/pretty-good/0.2.2
[INFO] extracting crate pretty-good 0.2.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/pretty-good/0.2.2
[INFO] validating manifest of pretty-good-0.2.2 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 pretty-good-0.2.2 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 pretty-good-0.2.2
[INFO] finished frobbing pretty-good-0.2.2
[INFO] frobbed toml for pretty-good-0.2.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/pretty-good/0.2.2/Cargo.toml
[INFO] started frobbing pretty-good-0.2.2
[INFO] finished frobbing pretty-good-0.2.2
[INFO] frobbed toml for pretty-good-0.2.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/pretty-good/0.2.2/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing pretty-good-0.2.2 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-5/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/pretty-good/0.2.2:/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] 77f65adaac766e7f173a92c024cc5a8372fa2c08a6429ad93e86bc9f63399e29
[INFO] running `"docker" "start" "-a" "77f65adaac766e7f173a92c024cc5a8372fa2c08a6429ad93e86bc9f63399e29"`
[INFO] [stderr]    Compiling bzip2-sys v0.1.7
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling md-5 v0.7.0
[INFO] [stderr]    Compiling flate2 v1.0.11
[INFO] [stderr]    Compiling sha-1 v0.7.0
[INFO] [stderr]    Compiling bzip2 v0.3.3
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling yasna v0.1.3
[INFO] [stderr]    Compiling pretty-good v0.2.2 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/compression.rs:90:31
[INFO] [stderr]    |
[INFO] [stderr] 90 |         let mut deflater: Box<Read> = match self {
[INFO] [stderr]    |                               ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.40s
[INFO] running `"docker" "inspect" "77f65adaac766e7f173a92c024cc5a8372fa2c08a6429ad93e86bc9f63399e29"`
[INFO] running `"docker" "rm" "-f" "77f65adaac766e7f173a92c024cc5a8372fa2c08a6429ad93e86bc9f63399e29"`
[INFO] [stdout] 77f65adaac766e7f173a92c024cc5a8372fa2c08a6429ad93e86bc9f63399e29
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/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/pretty-good/0.2.2:/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] cf1eedd344a7d5098677ce1bba5d8eeec6cd62f4ca0c77787b6b96a3caf67587
[INFO] running `"docker" "start" "-a" "cf1eedd344a7d5098677ce1bba5d8eeec6cd62f4ca0c77787b6b96a3caf67587"`
[INFO] [stderr]    Compiling pretty-good v0.2.2 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/compression.rs:90:31
[INFO] [stderr]    |
[INFO] [stderr] 90 |         let mut deflater: Box<Read> = match self {
[INFO] [stderr]    |                               ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.49s
[INFO] running `"docker" "inspect" "cf1eedd344a7d5098677ce1bba5d8eeec6cd62f4ca0c77787b6b96a3caf67587"`
[INFO] running `"docker" "rm" "-f" "cf1eedd344a7d5098677ce1bba5d8eeec6cd62f4ca0c77787b6b96a3caf67587"`
[INFO] [stdout] cf1eedd344a7d5098677ce1bba5d8eeec6cd62f4ca0c77787b6b96a3caf67587
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/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/pretty-good/0.2.2:/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] 003845a2a0318ac5d0147e2fd23e97368b7a02c34ee6738b03bc3e9db32b9247
[INFO] running `"docker" "start" "-a" "003845a2a0318ac5d0147e2fd23e97368b7a02c34ee6738b03bc3e9db32b9247"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/pretty_good-9eb0d1941a737ba3
[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]    Doc-tests pretty-good
[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" "003845a2a0318ac5d0147e2fd23e97368b7a02c34ee6738b03bc3e9db32b9247"`
[INFO] running `"docker" "rm" "-f" "003845a2a0318ac5d0147e2fd23e97368b7a02c34ee6738b03bc3e9db32b9247"`
[INFO] [stdout] 003845a2a0318ac5d0147e2fd23e97368b7a02c34ee6738b03bc3e9db32b9247