[INFO] updating cached repository ChalkPE/rust-playground
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ChalkPE/rust-playground
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ChalkPE/rust-playground" "work/ex/beta-1.38-1/sources/1.37.0/gh/ChalkPE/rust-playground"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/ChalkPE/rust-playground'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ChalkPE/rust-playground" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ChalkPE/rust-playground"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ChalkPE/rust-playground'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ce5291c7e5bf4ea81a07e761331e8985958ca714
[INFO] sha for GitHub repo ChalkPE/rust-playground: ce5291c7e5bf4ea81a07e761331e8985958ca714
[INFO] validating manifest of ChalkPE/rust-playground on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ChalkPE/rust-playground on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ChalkPE/rust-playground
[INFO] finished frobbing ChalkPE/rust-playground
[INFO] frobbed toml for ChalkPE/rust-playground written to work/ex/beta-1.38-1/sources/1.37.0/gh/ChalkPE/rust-playground/Cargo.toml
[INFO] started frobbing ChalkPE/rust-playground
[INFO] finished frobbing ChalkPE/rust-playground
[INFO] frobbed toml for ChalkPE/rust-playground written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ChalkPE/rust-playground/Cargo.toml
[INFO] crate ChalkPE/rust-playground already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing ChalkPE/rust-playground against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ChalkPE/rust-playground:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 6a33a05c693845925490cc7df36911218a9b0c1b0f8a8376ca8f97687959e2f8
[INFO] running `"docker" "start" "-a" "6a33a05c693845925490cc7df36911218a9b0c1b0f8a8376ca8f97687959e2f8"`
[INFO] [stderr]    Compiling playground v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `"docker" "inspect" "6a33a05c693845925490cc7df36911218a9b0c1b0f8a8376ca8f97687959e2f8"`
[INFO] running `"docker" "rm" "-f" "6a33a05c693845925490cc7df36911218a9b0c1b0f8a8376ca8f97687959e2f8"`
[INFO] [stdout] 6a33a05c693845925490cc7df36911218a9b0c1b0f8a8376ca8f97687959e2f8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ChalkPE/rust-playground:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] ffdf09aa83a0d7a25c2ae2bec62315ae9e392ebb85b65ccc741d8cbb402702ae
[INFO] running `"docker" "start" "-a" "ffdf09aa83a0d7a25c2ae2bec62315ae9e392ebb85b65ccc741d8cbb402702ae"`
[INFO] [stderr]    Compiling playground v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `"docker" "inspect" "ffdf09aa83a0d7a25c2ae2bec62315ae9e392ebb85b65ccc741d8cbb402702ae"`
[INFO] running `"docker" "rm" "-f" "ffdf09aa83a0d7a25c2ae2bec62315ae9e392ebb85b65ccc741d8cbb402702ae"`
[INFO] [stdout] ffdf09aa83a0d7a25c2ae2bec62315ae9e392ebb85b65ccc741d8cbb402702ae
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ChalkPE/rust-playground:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 38a4568f7a8cb8fa69405838ebdd4a179ed2f39d463e67ca30a77fdc9b5eb024
[INFO] running `"docker" "start" "-a" "38a4568f7a8cb8fa69405838ebdd4a179ed2f39d463e67ca30a77fdc9b5eb024"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/playground-ae338ef3eaef561d
[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" "38a4568f7a8cb8fa69405838ebdd4a179ed2f39d463e67ca30a77fdc9b5eb024"`
[INFO] running `"docker" "rm" "-f" "38a4568f7a8cb8fa69405838ebdd4a179ed2f39d463e67ca30a77fdc9b5eb024"`
[INFO] [stdout] 38a4568f7a8cb8fa69405838ebdd4a179ed2f39d463e67ca30a77fdc9b5eb024