[INFO] updating cached repository MattivdWeem/learning-the-rust-ropes
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/MattivdWeem/learning-the-rust-ropes
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/MattivdWeem/learning-the-rust-ropes" "work/ex/beta-1.38-1/sources/1.37.0/gh/MattivdWeem/learning-the-rust-ropes"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/MattivdWeem/learning-the-rust-ropes'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/MattivdWeem/learning-the-rust-ropes" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/MattivdWeem/learning-the-rust-ropes"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/MattivdWeem/learning-the-rust-ropes'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1135ce18ab919febc5bc39d209c80b442b9c8f20
[INFO] sha for GitHub repo MattivdWeem/learning-the-rust-ropes: 1135ce18ab919febc5bc39d209c80b442b9c8f20
[INFO] validating manifest of MattivdWeem/learning-the-rust-ropes 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 MattivdWeem/learning-the-rust-ropes 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 MattivdWeem/learning-the-rust-ropes
[INFO] finished frobbing MattivdWeem/learning-the-rust-ropes
[INFO] frobbed toml for MattivdWeem/learning-the-rust-ropes written to work/ex/beta-1.38-1/sources/1.37.0/gh/MattivdWeem/learning-the-rust-ropes/Cargo.toml
[INFO] started frobbing MattivdWeem/learning-the-rust-ropes
[INFO] finished frobbing MattivdWeem/learning-the-rust-ropes
[INFO] frobbed toml for MattivdWeem/learning-the-rust-ropes written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/MattivdWeem/learning-the-rust-ropes/Cargo.toml
[INFO] crate MattivdWeem/learning-the-rust-ropes 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing MattivdWeem/learning-the-rust-ropes 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/MattivdWeem/learning-the-rust-ropes:/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] 04f0389627993049ffe841473a55a441ca023cdffd2cdb420038e60decec6244
[INFO] running `"docker" "start" "-a" "04f0389627993049ffe841473a55a441ca023cdffd2cdb420038e60decec6244"`
[INFO] [stderr]    Compiling hello_cargo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `"docker" "inspect" "04f0389627993049ffe841473a55a441ca023cdffd2cdb420038e60decec6244"`
[INFO] running `"docker" "rm" "-f" "04f0389627993049ffe841473a55a441ca023cdffd2cdb420038e60decec6244"`
[INFO] [stdout] 04f0389627993049ffe841473a55a441ca023cdffd2cdb420038e60decec6244
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/MattivdWeem/learning-the-rust-ropes:/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] ac440138f300ab2df7467d22d1f9aba872804854619a85d98b577ab4fb88f66d
[INFO] running `"docker" "start" "-a" "ac440138f300ab2df7467d22d1f9aba872804854619a85d98b577ab4fb88f66d"`
[INFO] [stderr]    Compiling hello_cargo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `"docker" "inspect" "ac440138f300ab2df7467d22d1f9aba872804854619a85d98b577ab4fb88f66d"`
[INFO] running `"docker" "rm" "-f" "ac440138f300ab2df7467d22d1f9aba872804854619a85d98b577ab4fb88f66d"`
[INFO] [stdout] ac440138f300ab2df7467d22d1f9aba872804854619a85d98b577ab4fb88f66d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/MattivdWeem/learning-the-rust-ropes:/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] b6782b57b1bb465bcef70b3c69df05eabddbf7b80985b34ec56b797e1378d83c
[INFO] running `"docker" "start" "-a" "b6782b57b1bb465bcef70b3c69df05eabddbf7b80985b34ec56b797e1378d83c"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hello_cargo-03084a90e557edb8
[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" "b6782b57b1bb465bcef70b3c69df05eabddbf7b80985b34ec56b797e1378d83c"`
[INFO] running `"docker" "rm" "-f" "b6782b57b1bb465bcef70b3c69df05eabddbf7b80985b34ec56b797e1378d83c"`
[INFO] [stdout] b6782b57b1bb465bcef70b3c69df05eabddbf7b80985b34ec56b797e1378d83c