[INFO] updating cached repository Murtaza0xFF/Rust-Playground
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Murtaza0xFF/Rust-Playground
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Murtaza0xFF/Rust-Playground" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/Murtaza0xFF/Rust-Playground"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/Murtaza0xFF/Rust-Playground'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Murtaza0xFF/Rust-Playground" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/Murtaza0xFF/Rust-Playground"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/Murtaza0xFF/Rust-Playground'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2117cbce957456e035f370e30bf09888ab181af4
[INFO] sha for GitHub repo Murtaza0xFF/Rust-Playground: 2117cbce957456e035f370e30bf09888ab181af4
[INFO] validating manifest of Murtaza0xFF/Rust-Playground on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Murtaza0xFF/Rust-Playground on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Murtaza0xFF/Rust-Playground
[INFO] finished frobbing Murtaza0xFF/Rust-Playground
[INFO] frobbed toml for Murtaza0xFF/Rust-Playground written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/Murtaza0xFF/Rust-Playground/Cargo.toml
[INFO] started frobbing Murtaza0xFF/Rust-Playground
[INFO] finished frobbing Murtaza0xFF/Rust-Playground
[INFO] frobbed toml for Murtaza0xFF/Rust-Playground written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/Murtaza0xFF/Rust-Playground/Cargo.toml
[INFO] crate Murtaza0xFF/Rust-Playground has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Murtaza0xFF/Rust-Playground against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/Murtaza0xFF/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=forbid" "-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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "build" "--frozen"`
[INFO] [stdout] 296eaf9e8c9039395ba495130defcb0a66c8671d55f26d1ed9bab40951fe5f19
[INFO] running `"docker" "start" "-a" "296eaf9e8c9039395ba495130defcb0a66c8671d55f26d1ed9bab40951fe5f19"`
[INFO] [stderr]    Compiling rust_playground v0.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `"docker" "inspect" "296eaf9e8c9039395ba495130defcb0a66c8671d55f26d1ed9bab40951fe5f19"`
[INFO] running `"docker" "rm" "-f" "296eaf9e8c9039395ba495130defcb0a66c8671d55f26d1ed9bab40951fe5f19"`
[INFO] [stdout] 296eaf9e8c9039395ba495130defcb0a66c8671d55f26d1ed9bab40951fe5f19
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/Murtaza0xFF/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=forbid" "-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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] ca732b0b4cd6bec4ef4cd8dea7434dc6fb9fb4138a536628e14187d31471105c
[INFO] running `"docker" "start" "-a" "ca732b0b4cd6bec4ef4cd8dea7434dc6fb9fb4138a536628e14187d31471105c"`
[INFO] [stderr]    Compiling rust_playground v0.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `"docker" "inspect" "ca732b0b4cd6bec4ef4cd8dea7434dc6fb9fb4138a536628e14187d31471105c"`
[INFO] running `"docker" "rm" "-f" "ca732b0b4cd6bec4ef4cd8dea7434dc6fb9fb4138a536628e14187d31471105c"`
[INFO] [stdout] ca732b0b4cd6bec4ef4cd8dea7434dc6fb9fb4138a536628e14187d31471105c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/Murtaza0xFF/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=forbid" "-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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen"`
[INFO] [stdout] 674cd71e96c4d914378c2e938eb637245e2c3eb17cc9c47ebba8bbb3f5e8771e
[INFO] running `"docker" "start" "-a" "674cd71e96c4d914378c2e938eb637245e2c3eb17cc9c47ebba8bbb3f5e8771e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_playground-ada5f8ca2f950d85
[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" "674cd71e96c4d914378c2e938eb637245e2c3eb17cc9c47ebba8bbb3f5e8771e"`
[INFO] running `"docker" "rm" "-f" "674cd71e96c4d914378c2e938eb637245e2c3eb17cc9c47ebba8bbb3f5e8771e"`
[INFO] [stdout] 674cd71e96c4d914378c2e938eb637245e2c3eb17cc9c47ebba8bbb3f5e8771e