[INFO] updating cached repository andrematheus/programming-praxis-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/andrematheus/programming-praxis-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/andrematheus/programming-praxis-rust" "work/ex/beta-1.37-6/sources/1.36.0/gh/andrematheus/programming-praxis-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/andrematheus/programming-praxis-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/andrematheus/programming-praxis-rust" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/andrematheus/programming-praxis-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/andrematheus/programming-praxis-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 000d331077581d8f1e6cd4ee7245b948ceeeb31b
[INFO] sha for GitHub repo andrematheus/programming-praxis-rust: 000d331077581d8f1e6cd4ee7245b948ceeeb31b
[INFO] validating manifest of andrematheus/programming-praxis-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 andrematheus/programming-praxis-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 andrematheus/programming-praxis-rust
[INFO] finished frobbing andrematheus/programming-praxis-rust
[INFO] frobbed toml for andrematheus/programming-praxis-rust written to work/ex/beta-1.37-6/sources/1.36.0/gh/andrematheus/programming-praxis-rust/Cargo.toml
[INFO] started frobbing andrematheus/programming-praxis-rust
[INFO] finished frobbing andrematheus/programming-praxis-rust
[INFO] frobbed toml for andrematheus/programming-praxis-rust written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/andrematheus/programming-praxis-rust/Cargo.toml
[INFO] crate andrematheus/programming-praxis-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 andrematheus/programming-praxis-rust against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/andrematheus/programming-praxis-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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 80e022b1919020409bdf67152956646fc8c50e060989b3211038f18412bcb3c4
[INFO] running `"docker" "start" "-a" "80e022b1919020409bdf67152956646fc8c50e060989b3211038f18412bcb3c4"`
[INFO] [stderr]    Compiling pprust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.53s
[INFO] running `"docker" "inspect" "80e022b1919020409bdf67152956646fc8c50e060989b3211038f18412bcb3c4"`
[INFO] running `"docker" "rm" "-f" "80e022b1919020409bdf67152956646fc8c50e060989b3211038f18412bcb3c4"`
[INFO] [stdout] 80e022b1919020409bdf67152956646fc8c50e060989b3211038f18412bcb3c4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/andrematheus/programming-praxis-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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] b4942b4c797f747516326c8908b3f4302a6584f714945c578a69c49766616770
[INFO] running `"docker" "start" "-a" "b4942b4c797f747516326c8908b3f4302a6584f714945c578a69c49766616770"`
[INFO] [stderr]    Compiling pprust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.61s
[INFO] running `"docker" "inspect" "b4942b4c797f747516326c8908b3f4302a6584f714945c578a69c49766616770"`
[INFO] running `"docker" "rm" "-f" "b4942b4c797f747516326c8908b3f4302a6584f714945c578a69c49766616770"`
[INFO] [stdout] b4942b4c797f747516326c8908b3f4302a6584f714945c578a69c49766616770
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/andrematheus/programming-praxis-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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 439ab62f48b6d1985c2411b43d407cd0b1bc9386270af32273e6c69e72b450ba
[INFO] running `"docker" "start" "-a" "439ab62f48b6d1985c2411b43d407cd0b1bc9386270af32273e6c69e72b450ba"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/pprust-aadc4b0c4fb2905b
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test rpncalculator::tests::should_add_f64_to_stack ... ok
[INFO] [stdout] test rpncalculator::tests::should_calculate_the_example_from_the_site ... ok
[INFO] [stdout] test rpncalculator::tests::should_add_two_f64_in_stack ... ok
[INFO] [stdout] test rpncalculator::tests::should_add_two_f64_to_stack ... ok
[INFO] [stdout] test rpncalculator::tests::should_be_possible_to_add_operator_that_operates_on_stack ... ok
[INFO] [stdout] test rpncalculator::tests::should_calculate_division ... ok
[INFO] [stdout] test rpncalculator::tests::should_calculate_multiplication ... ok
[INFO] [stdout] test rpncalculator::tests::should_calculate_subtraction ... ok
[INFO] [stdout] test rpncalculator::tests::should_extend_default_operators_with_operators ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rpncalculator-6e5e1bb4d8abe11d
[INFO] [stdout] test rpncalculator::tests::should_not_pop_without_enough_operands ... ok
[INFO] [stdout] test rpncalculator::tests::should_return_error_when_evaluating_garbage ... ok
[INFO] [stdout] test rpncalculator::tests::should_return_error_when_adding_without_enough_operands ... ok
[INFO] [stdout] test rpncalculator::tests::should_use_operators_passed_at_construction_time ... ok
[INFO] [stdout] test rpncalculator::tests::should_create_a_calculator ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 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] [stderr]    Doc-tests pprust
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/rpncalculator.rs - rpncalculator::default_operators (line 125) ... ok
[INFO] [stdout] test src/rpncalculator.rs - new_operator (line 50) ... ok
[INFO] [stdout] test src/rpncalculator.rs - new_operator (line 69) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "439ab62f48b6d1985c2411b43d407cd0b1bc9386270af32273e6c69e72b450ba"`
[INFO] running `"docker" "rm" "-f" "439ab62f48b6d1985c2411b43d407cd0b1bc9386270af32273e6c69e72b450ba"`
[INFO] [stdout] 439ab62f48b6d1985c2411b43d407cd0b1bc9386270af32273e6c69e72b450ba