[INFO] updating cached repository bolknote/checkzero
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/bolknote/checkzero
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/bolknote/checkzero" "work/ex/beta-1.37-6/sources/1.36.0/gh/bolknote/checkzero"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/bolknote/checkzero'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/bolknote/checkzero" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/bolknote/checkzero"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/bolknote/checkzero'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cf97c1957845680734219134a9ead64153401216
[INFO] sha for GitHub repo bolknote/checkzero: cf97c1957845680734219134a9ead64153401216
[INFO] validating manifest of bolknote/checkzero 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 bolknote/checkzero 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 bolknote/checkzero
[INFO] finished frobbing bolknote/checkzero
[INFO] frobbed toml for bolknote/checkzero written to work/ex/beta-1.37-6/sources/1.36.0/gh/bolknote/checkzero/Cargo.toml
[INFO] started frobbing bolknote/checkzero
[INFO] finished frobbing bolknote/checkzero
[INFO] frobbed toml for bolknote/checkzero written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/bolknote/checkzero/Cargo.toml
[INFO] crate bolknote/checkzero 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]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing bolknote/checkzero 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-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/bolknote/checkzero:/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] 647ab8b1346f91b45199721c4a2bb9728c53ffbd11f3653f1c72e99b3bc8d377
[INFO] running `"docker" "start" "-a" "647ab8b1346f91b45199721c4a2bb9728c53ffbd11f3653f1c72e99b3bc8d377"`
[INFO] [stderr]    Compiling zerochecker v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `"docker" "inspect" "647ab8b1346f91b45199721c4a2bb9728c53ffbd11f3653f1c72e99b3bc8d377"`
[INFO] running `"docker" "rm" "-f" "647ab8b1346f91b45199721c4a2bb9728c53ffbd11f3653f1c72e99b3bc8d377"`
[INFO] [stdout] 647ab8b1346f91b45199721c4a2bb9728c53ffbd11f3653f1c72e99b3bc8d377
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/bolknote/checkzero:/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] 7520cf575c7eb6b798d817a4eac187e218e936259eba1ca97c98baa5195a8ddf
[INFO] running `"docker" "start" "-a" "7520cf575c7eb6b798d817a4eac187e218e936259eba1ca97c98baa5195a8ddf"`
[INFO] [stderr]    Compiling zerochecker v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `"docker" "inspect" "7520cf575c7eb6b798d817a4eac187e218e936259eba1ca97c98baa5195a8ddf"`
[INFO] running `"docker" "rm" "-f" "7520cf575c7eb6b798d817a4eac187e218e936259eba1ca97c98baa5195a8ddf"`
[INFO] [stdout] 7520cf575c7eb6b798d817a4eac187e218e936259eba1ca97c98baa5195a8ddf
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/bolknote/checkzero:/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] 72a695345c031ec3fb496d30e85d62f9f75a40433511d1bc6be99e3ccd26137c
[INFO] running `"docker" "start" "-a" "72a695345c031ec3fb496d30e85d62f9f75a40433511d1bc6be99e3ccd26137c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/zerochecker-f73db27632bbdec0
[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" "72a695345c031ec3fb496d30e85d62f9f75a40433511d1bc6be99e3ccd26137c"`
[INFO] running `"docker" "rm" "-f" "72a695345c031ec3fb496d30e85d62f9f75a40433511d1bc6be99e3ccd26137c"`
[INFO] [stdout] 72a695345c031ec3fb496d30e85d62f9f75a40433511d1bc6be99e3ccd26137c