[INFO] updating cached repository BingKui/Rust-Learn
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/BingKui/Rust-Learn
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/BingKui/Rust-Learn" "work/ex/beta-1.38-1/sources/1.37.0/gh/BingKui/Rust-Learn"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/BingKui/Rust-Learn'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/BingKui/Rust-Learn" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/BingKui/Rust-Learn"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/BingKui/Rust-Learn'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8f5d2d69e7f1b7cacecb9d518edbba92b705a5b4
[INFO] sha for GitHub repo BingKui/Rust-Learn: 8f5d2d69e7f1b7cacecb9d518edbba92b705a5b4
[INFO] validating manifest of BingKui/Rust-Learn 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 BingKui/Rust-Learn 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 BingKui/Rust-Learn
[INFO] finished frobbing BingKui/Rust-Learn
[INFO] frobbed toml for BingKui/Rust-Learn written to work/ex/beta-1.38-1/sources/1.37.0/gh/BingKui/Rust-Learn/Cargo.toml
[INFO] started frobbing BingKui/Rust-Learn
[INFO] finished frobbing BingKui/Rust-Learn
[INFO] frobbed toml for BingKui/Rust-Learn written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/BingKui/Rust-Learn/Cargo.toml
[INFO] crate BingKui/Rust-Learn 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 BingKui/Rust-Learn 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-0/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/BingKui/Rust-Learn:/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] e349906302afb15ef8a35c2b0848780ea0bbdb4d6e30f45bdadc15662b670869
[INFO] running `"docker" "start" "-a" "e349906302afb15ef8a35c2b0848780ea0bbdb4d6e30f45bdadc15662b670869"`
[INFO] [stderr]    Compiling rust-learn v0.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `"docker" "inspect" "e349906302afb15ef8a35c2b0848780ea0bbdb4d6e30f45bdadc15662b670869"`
[INFO] running `"docker" "rm" "-f" "e349906302afb15ef8a35c2b0848780ea0bbdb4d6e30f45bdadc15662b670869"`
[INFO] [stdout] e349906302afb15ef8a35c2b0848780ea0bbdb4d6e30f45bdadc15662b670869
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/BingKui/Rust-Learn:/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] 43b54fd347331796816c606422fc04bbdbbec334263a8bea34853571168accdc
[INFO] running `"docker" "start" "-a" "43b54fd347331796816c606422fc04bbdbbec334263a8bea34853571168accdc"`
[INFO] [stderr]    Compiling rust-learn v0.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `"docker" "inspect" "43b54fd347331796816c606422fc04bbdbbec334263a8bea34853571168accdc"`
[INFO] running `"docker" "rm" "-f" "43b54fd347331796816c606422fc04bbdbbec334263a8bea34853571168accdc"`
[INFO] [stdout] 43b54fd347331796816c606422fc04bbdbbec334263a8bea34853571168accdc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/BingKui/Rust-Learn:/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] 323a1edaa2cc44d09af235e24e7e69fa811c55927514526b66b608bb819e9e42
[INFO] running `"docker" "start" "-a" "323a1edaa2cc44d09af235e24e7e69fa811c55927514526b66b608bb819e9e42"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_learn-479f39b5bd69a631
[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" "323a1edaa2cc44d09af235e24e7e69fa811c55927514526b66b608bb819e9e42"`
[INFO] running `"docker" "rm" "-f" "323a1edaa2cc44d09af235e24e7e69fa811c55927514526b66b608bb819e9e42"`
[INFO] [stdout] 323a1edaa2cc44d09af235e24e7e69fa811c55927514526b66b608bb819e9e42