[INFO] updating cached repository shmy/rust-learning
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/shmy/rust-learning
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/shmy/rust-learning" "work/ex/beta-1.37-6/sources/1.36.0/gh/shmy/rust-learning"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/shmy/rust-learning'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/shmy/rust-learning" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/shmy/rust-learning"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/shmy/rust-learning'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 42647ba0d2e3fad1dcd548864db2c8bc411691d6
[INFO] sha for GitHub repo shmy/rust-learning: 42647ba0d2e3fad1dcd548864db2c8bc411691d6
[INFO] validating manifest of shmy/rust-learning 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 shmy/rust-learning 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 shmy/rust-learning
[INFO] finished frobbing shmy/rust-learning
[INFO] frobbed toml for shmy/rust-learning written to work/ex/beta-1.37-6/sources/1.36.0/gh/shmy/rust-learning/Cargo.toml
[INFO] started frobbing shmy/rust-learning
[INFO] finished frobbing shmy/rust-learning
[INFO] frobbed toml for shmy/rust-learning written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/shmy/rust-learning/Cargo.toml
[INFO] crate shmy/rust-learning already has a lockfile, it will not be regenerated
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing shmy/rust-learning against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/shmy/rust-learning:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] fc1093f2671a4f354df4e1c2ad79d2b294b3d55be08ef562467182dd57603ca2
[INFO] running `"docker" "start" "-a" "fc1093f2671a4f354df4e1c2ad79d2b294b3d55be08ef562467182dd57603ca2"`
[INFO] [stderr]    Compiling rust_learning v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.62s
[INFO] running `"docker" "inspect" "fc1093f2671a4f354df4e1c2ad79d2b294b3d55be08ef562467182dd57603ca2"`
[INFO] running `"docker" "rm" "-f" "fc1093f2671a4f354df4e1c2ad79d2b294b3d55be08ef562467182dd57603ca2"`
[INFO] [stdout] fc1093f2671a4f354df4e1c2ad79d2b294b3d55be08ef562467182dd57603ca2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/shmy/rust-learning:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] f04285f90a12956a36e42e6b8eb8b8ef26468674674510a02a17cc50cfffb560
[INFO] running `"docker" "start" "-a" "f04285f90a12956a36e42e6b8eb8b8ef26468674674510a02a17cc50cfffb560"`
[INFO] [stderr]    Compiling rust_learning v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `"docker" "inspect" "f04285f90a12956a36e42e6b8eb8b8ef26468674674510a02a17cc50cfffb560"`
[INFO] running `"docker" "rm" "-f" "f04285f90a12956a36e42e6b8eb8b8ef26468674674510a02a17cc50cfffb560"`
[INFO] [stdout] f04285f90a12956a36e42e6b8eb8b8ef26468674674510a02a17cc50cfffb560
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/shmy/rust-learning:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 2dcfe5c74007361d0f38b2e71f663a674fff9d30a951e0a4bf9d251ea4ad3d87
[INFO] running `"docker" "start" "-a" "2dcfe5c74007361d0f38b2e71f663a674fff9d30a951e0a4bf9d251ea4ad3d87"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_learning-d2c96a99ac821f70
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_learning-9a0b74594878ed7c
[INFO] [stderr]    Doc-tests rust_learning
[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] [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] [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" "2dcfe5c74007361d0f38b2e71f663a674fff9d30a951e0a4bf9d251ea4ad3d87"`
[INFO] running `"docker" "rm" "-f" "2dcfe5c74007361d0f38b2e71f663a674fff9d30a951e0a4bf9d251ea4ad3d87"`
[INFO] [stdout] 2dcfe5c74007361d0f38b2e71f663a674fff9d30a951e0a4bf9d251ea4ad3d87