[INFO] updating cached repository grffn/compiler_lab
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/grffn/compiler_lab
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/grffn/compiler_lab" "work/ex/beta-1.37-6/sources/1.36.0/gh/grffn/compiler_lab"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/grffn/compiler_lab'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/grffn/compiler_lab" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/grffn/compiler_lab"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/grffn/compiler_lab'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9000cc47faa2b9021cff751b7a9dc471594dc3b0
[INFO] sha for GitHub repo grffn/compiler_lab: 9000cc47faa2b9021cff751b7a9dc471594dc3b0
[INFO] validating manifest of grffn/compiler_lab 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 grffn/compiler_lab 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 grffn/compiler_lab
[INFO] finished frobbing grffn/compiler_lab
[INFO] frobbed toml for grffn/compiler_lab written to work/ex/beta-1.37-6/sources/1.36.0/gh/grffn/compiler_lab/Cargo.toml
[INFO] started frobbing grffn/compiler_lab
[INFO] finished frobbing grffn/compiler_lab
[INFO] frobbed toml for grffn/compiler_lab written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/grffn/compiler_lab/Cargo.toml
[INFO] crate grffn/compiler_lab 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] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/grffn/compiler_lab/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 grffn/compiler_lab 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-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/grffn/compiler_lab:/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] a30b864a9662f7c4acbefb03946fa02a7977077c5ce203a415a290651d1604c7
[INFO] running `"docker" "start" "-a" "a30b864a9662f7c4acbefb03946fa02a7977077c5ce203a415a290651d1604c7"`
[INFO] [stderr]    Compiling argparse v0.2.2
[INFO] [stderr]    Compiling compilers v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.24s
[INFO] running `"docker" "inspect" "a30b864a9662f7c4acbefb03946fa02a7977077c5ce203a415a290651d1604c7"`
[INFO] running `"docker" "rm" "-f" "a30b864a9662f7c4acbefb03946fa02a7977077c5ce203a415a290651d1604c7"`
[INFO] [stdout] a30b864a9662f7c4acbefb03946fa02a7977077c5ce203a415a290651d1604c7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/grffn/compiler_lab:/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] 50adc9fd0f9bf2d458d6a49549a7b33801482a3604f098a5b7e87dd55681d87f
[INFO] running `"docker" "start" "-a" "50adc9fd0f9bf2d458d6a49549a7b33801482a3604f098a5b7e87dd55681d87f"`
[INFO] [stderr]    Compiling compilers v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.51s
[INFO] running `"docker" "inspect" "50adc9fd0f9bf2d458d6a49549a7b33801482a3604f098a5b7e87dd55681d87f"`
[INFO] running `"docker" "rm" "-f" "50adc9fd0f9bf2d458d6a49549a7b33801482a3604f098a5b7e87dd55681d87f"`
[INFO] [stdout] 50adc9fd0f9bf2d458d6a49549a7b33801482a3604f098a5b7e87dd55681d87f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/grffn/compiler_lab:/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] a68a0cf3196de32601d4cb439fbfd8ac68756542f164330b5997043c1c043699
[INFO] running `"docker" "start" "-a" "a68a0cf3196de32601d4cb439fbfd8ac68756542f164330b5997043c1c043699"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/compilers-f361614ec53aad4e
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test lexer::tests::lex_number ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/compilers-2cf962914bb3edb5
[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 compilers
[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" "a68a0cf3196de32601d4cb439fbfd8ac68756542f164330b5997043c1c043699"`
[INFO] running `"docker" "rm" "-f" "a68a0cf3196de32601d4cb439fbfd8ac68756542f164330b5997043c1c043699"`
[INFO] [stdout] a68a0cf3196de32601d4cb439fbfd8ac68756542f164330b5997043c1c043699