[INFO] updating cached repository Rintel/Rust-Playground
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Rintel/Rust-Playground
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Rintel/Rust-Playground" "work/ex/beta-1.38-1/sources/1.37.0/gh/Rintel/Rust-Playground"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Rintel/Rust-Playground'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Rintel/Rust-Playground" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Rintel/Rust-Playground"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Rintel/Rust-Playground'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b043aac55122a2bfdd8bba23b718ce57bf294674
[INFO] sha for GitHub repo Rintel/Rust-Playground: b043aac55122a2bfdd8bba23b718ce57bf294674
[INFO] validating manifest of Rintel/Rust-Playground 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 Rintel/Rust-Playground 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 Rintel/Rust-Playground
[INFO] finished frobbing Rintel/Rust-Playground
[INFO] frobbed toml for Rintel/Rust-Playground written to work/ex/beta-1.38-1/sources/1.37.0/gh/Rintel/Rust-Playground/Cargo.toml
[INFO] started frobbing Rintel/Rust-Playground
[INFO] finished frobbing Rintel/Rust-Playground
[INFO] frobbed toml for Rintel/Rust-Playground written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Rintel/Rust-Playground/Cargo.toml
[INFO] crate Rintel/Rust-Playground 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Rintel/Rust-Playground 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/gh/Rintel/Rust-Playground:/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] 9191a87a898993f75d5d8bf3cc7994faafc1165e9228879fba69a6b725a428ff
[INFO] running `"docker" "start" "-a" "9191a87a898993f75d5d8bf3cc7994faafc1165e9228879fba69a6b725a428ff"`
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.43s
[INFO] running `"docker" "inspect" "9191a87a898993f75d5d8bf3cc7994faafc1165e9228879fba69a6b725a428ff"`
[INFO] running `"docker" "rm" "-f" "9191a87a898993f75d5d8bf3cc7994faafc1165e9228879fba69a6b725a428ff"`
[INFO] [stdout] 9191a87a898993f75d5d8bf3cc7994faafc1165e9228879fba69a6b725a428ff
[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/gh/Rintel/Rust-Playground:/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] cae52a75791e45139a2b923b163be21409e4c5696c764e244eddb269cc2661f3
[INFO] running `"docker" "start" "-a" "cae52a75791e45139a2b923b163be21409e4c5696c764e244eddb269cc2661f3"`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `"docker" "inspect" "cae52a75791e45139a2b923b163be21409e4c5696c764e244eddb269cc2661f3"`
[INFO] running `"docker" "rm" "-f" "cae52a75791e45139a2b923b163be21409e4c5696c764e244eddb269cc2661f3"`
[INFO] [stdout] cae52a75791e45139a2b923b163be21409e4c5696c764e244eddb269cc2661f3
[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/gh/Rintel/Rust-Playground:/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] d10712e17e0df574ecf2b02a197611fc5f029ca350c512d3b5ee87660fec69bb
[INFO] running `"docker" "start" "-a" "d10712e17e0df574ecf2b02a197611fc5f029ca350c512d3b5ee87660fec69bb"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/crater/target/debug/deps/guessing_game-a61989a942f4b9db
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "d10712e17e0df574ecf2b02a197611fc5f029ca350c512d3b5ee87660fec69bb"`
[INFO] running `"docker" "rm" "-f" "d10712e17e0df574ecf2b02a197611fc5f029ca350c512d3b5ee87660fec69bb"`
[INFO] [stdout] d10712e17e0df574ecf2b02a197611fc5f029ca350c512d3b5ee87660fec69bb