[INFO] updating cached repository ruchern/learn-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ruchern/learn-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ruchern/learn-rust" "work/ex/beta-1.37-6/sources/1.36.0/gh/ruchern/learn-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/ruchern/learn-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ruchern/learn-rust" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ruchern/learn-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ruchern/learn-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a433840283f24e4e9e7663129bd6a2093a68f480
[INFO] sha for GitHub repo ruchern/learn-rust: a433840283f24e4e9e7663129bd6a2093a68f480
[INFO] validating manifest of ruchern/learn-rust 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 ruchern/learn-rust 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 ruchern/learn-rust
[INFO] finished frobbing ruchern/learn-rust
[INFO] frobbed toml for ruchern/learn-rust written to work/ex/beta-1.37-6/sources/1.36.0/gh/ruchern/learn-rust/Cargo.toml
[INFO] started frobbing ruchern/learn-rust
[INFO] finished frobbing ruchern/learn-rust
[INFO] frobbed toml for ruchern/learn-rust written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ruchern/learn-rust/Cargo.toml
[INFO] crate ruchern/learn-rust 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] testing ruchern/learn-rust 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/ruchern/learn-rust:/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] 8b764aab8f6a77a124cc6910a27bf43e73acfc690bda310ed3f866818ede6d31
[INFO] running `"docker" "start" "-a" "8b764aab8f6a77a124cc6910a27bf43e73acfc690bda310ed3f866818ede6d31"`
[INFO] [stderr]    Compiling learn-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `"docker" "inspect" "8b764aab8f6a77a124cc6910a27bf43e73acfc690bda310ed3f866818ede6d31"`
[INFO] running `"docker" "rm" "-f" "8b764aab8f6a77a124cc6910a27bf43e73acfc690bda310ed3f866818ede6d31"`
[INFO] [stdout] 8b764aab8f6a77a124cc6910a27bf43e73acfc690bda310ed3f866818ede6d31
[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/ruchern/learn-rust:/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] 9512cb0500a1498a134711b33840c8fe6797786e88af03411b1b7c2a57167136
[INFO] running `"docker" "start" "-a" "9512cb0500a1498a134711b33840c8fe6797786e88af03411b1b7c2a57167136"`
[INFO] [stderr]    Compiling learn-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `"docker" "inspect" "9512cb0500a1498a134711b33840c8fe6797786e88af03411b1b7c2a57167136"`
[INFO] running `"docker" "rm" "-f" "9512cb0500a1498a134711b33840c8fe6797786e88af03411b1b7c2a57167136"`
[INFO] [stdout] 9512cb0500a1498a134711b33840c8fe6797786e88af03411b1b7c2a57167136
[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/ruchern/learn-rust:/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] e72f01d62ae3891f1e4b97effa30e4f2a79133b0553cb0c0d3ac955ab8127b7e
[INFO] running `"docker" "start" "-a" "e72f01d62ae3891f1e4b97effa30e4f2a79133b0553cb0c0d3ac955ab8127b7e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/learn_rust-84e6c27e6c7d0a95
[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" "e72f01d62ae3891f1e4b97effa30e4f2a79133b0553cb0c0d3ac955ab8127b7e"`
[INFO] running `"docker" "rm" "-f" "e72f01d62ae3891f1e4b97effa30e4f2a79133b0553cb0c0d3ac955ab8127b7e"`
[INFO] [stdout] e72f01d62ae3891f1e4b97effa30e4f2a79133b0553cb0c0d3ac955ab8127b7e