[INFO] updating cached repository BenSchZA/pier
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/BenSchZA/pier
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/BenSchZA/pier" "work/ex/beta-1.38-1/sources/1.37.0/gh/BenSchZA/pier"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/BenSchZA/pier'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/BenSchZA/pier" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/BenSchZA/pier"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/BenSchZA/pier'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f97ad6e38c75553b433717f27bf62e6fa5097a2b
[INFO] sha for GitHub repo BenSchZA/pier: f97ad6e38c75553b433717f27bf62e6fa5097a2b
[INFO] validating manifest of BenSchZA/pier 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 BenSchZA/pier 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 BenSchZA/pier
[INFO] finished frobbing BenSchZA/pier
[INFO] frobbed toml for BenSchZA/pier written to work/ex/beta-1.38-1/sources/1.37.0/gh/BenSchZA/pier/Cargo.toml
[INFO] started frobbing BenSchZA/pier
[INFO] finished frobbing BenSchZA/pier
[INFO] frobbed toml for BenSchZA/pier written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/BenSchZA/pier/Cargo.toml
[INFO] crate BenSchZA/pier already has a lockfile, it will not be regenerated
[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 BenSchZA/pier 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/gh/BenSchZA/pier:/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] 5303150ca61be411329d66be06c83ade7675d767d42569b0d76bbab101d252ee
[INFO] running `"docker" "start" "-a" "5303150ca61be411329d66be06c83ade7675d767d42569b0d76bbab101d252ee"`
[INFO] [stderr]    Compiling serde v1.0.89
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling errno v0.2.4
[INFO] [stderr]    Compiling clap v2.27.1
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling nom v3.2.1
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling csv-core v0.1.5
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling env_logger v0.4.3
[INFO] [stderr]    Compiling shell v0.1.0 (https://github.com/google/rust-shell#8b1e775b)
[INFO] [stderr]    Compiling csv v1.0.7
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling prettytable-rs v0.8.0
[INFO] [stderr]    Compiling pier v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `Cell`, `Row`
[INFO] [stderr]   --> src/main.rs:11:26
[INFO] [stderr]    |
[INFO] [stderr] 11 | use prettytable::{Table, Row, Cell, format};
[INFO] [stderr]    |                          ^^^  ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 52.86s
[INFO] running `"docker" "inspect" "5303150ca61be411329d66be06c83ade7675d767d42569b0d76bbab101d252ee"`
[INFO] running `"docker" "rm" "-f" "5303150ca61be411329d66be06c83ade7675d767d42569b0d76bbab101d252ee"`
[INFO] [stdout] 5303150ca61be411329d66be06c83ade7675d767d42569b0d76bbab101d252ee
[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/gh/BenSchZA/pier:/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] bab2ecfd87664a30fb81374e6f4e6b256e5d981e49bf08eed29e9f2c225b8644
[INFO] running `"docker" "start" "-a" "bab2ecfd87664a30fb81374e6f4e6b256e5d981e49bf08eed29e9f2c225b8644"`
[INFO] [stderr]    Compiling pier v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `Cell`, `Row`
[INFO] [stderr]   --> src/main.rs:11:26
[INFO] [stderr]    |
[INFO] [stderr] 11 | use prettytable::{Table, Row, Cell, format};
[INFO] [stderr]    |                          ^^^  ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.32s
[INFO] running `"docker" "inspect" "bab2ecfd87664a30fb81374e6f4e6b256e5d981e49bf08eed29e9f2c225b8644"`
[INFO] running `"docker" "rm" "-f" "bab2ecfd87664a30fb81374e6f4e6b256e5d981e49bf08eed29e9f2c225b8644"`
[INFO] [stdout] bab2ecfd87664a30fb81374e6f4e6b256e5d981e49bf08eed29e9f2c225b8644
[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/gh/BenSchZA/pier:/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] 390f414ecba4fb8a1bbfab445fea367836bcde40175ea8b6f0ceddb226675655
[INFO] running `"docker" "start" "-a" "390f414ecba4fb8a1bbfab445fea367836bcde40175ea8b6f0ceddb226675655"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/pier-ea148051449709be
[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" "390f414ecba4fb8a1bbfab445fea367836bcde40175ea8b6f0ceddb226675655"`
[INFO] running `"docker" "rm" "-f" "390f414ecba4fb8a1bbfab445fea367836bcde40175ea8b6f0ceddb226675655"`
[INFO] [stdout] 390f414ecba4fb8a1bbfab445fea367836bcde40175ea8b6f0ceddb226675655