[INFO] cloning repository mcueto/rust-book-chapter-3
[INFO] running `"git" "clone" "--bare" "git://github.com/mcueto/rust-book-chapter-3.git" "work/cache/sources/gh/mcueto/rust-book-chapter-3"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/mcueto/rust-book-chapter-3'...
[INFO] running `"git" "clone" "work/cache/sources/gh/mcueto/rust-book-chapter-3" "work/ex/beta-1.37-6/sources/1.36.0/gh/mcueto/rust-book-chapter-3"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/mcueto/rust-book-chapter-3'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mcueto/rust-book-chapter-3" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mcueto/rust-book-chapter-3"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mcueto/rust-book-chapter-3'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 97f27c9df9a8d062c32dd13586a62a179e1b4822
[INFO] sha for GitHub repo mcueto/rust-book-chapter-3: 97f27c9df9a8d062c32dd13586a62a179e1b4822
[INFO] validating manifest of mcueto/rust-book-chapter-3 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 mcueto/rust-book-chapter-3 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 mcueto/rust-book-chapter-3
[INFO] finished frobbing mcueto/rust-book-chapter-3
[INFO] frobbed toml for mcueto/rust-book-chapter-3 written to work/ex/beta-1.37-6/sources/1.36.0/gh/mcueto/rust-book-chapter-3/Cargo.toml
[INFO] started frobbing mcueto/rust-book-chapter-3
[INFO] finished frobbing mcueto/rust-book-chapter-3
[INFO] frobbed toml for mcueto/rust-book-chapter-3 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mcueto/rust-book-chapter-3/Cargo.toml
[INFO] crate mcueto/rust-book-chapter-3 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing mcueto/rust-book-chapter-3 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-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/mcueto/rust-book-chapter-3:/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] 98b3aa45874a2d079749330f190b78fb6ed8ce8e29b043afae84e9413bfc8dac
[INFO] running `"docker" "start" "-a" "98b3aa45874a2d079749330f190b78fb6ed8ce8e29b043afae84e9413bfc8dac"`
[INFO] [stderr]    Compiling variables v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `"docker" "inspect" "98b3aa45874a2d079749330f190b78fb6ed8ce8e29b043afae84e9413bfc8dac"`
[INFO] running `"docker" "rm" "-f" "98b3aa45874a2d079749330f190b78fb6ed8ce8e29b043afae84e9413bfc8dac"`
[INFO] [stdout] 98b3aa45874a2d079749330f190b78fb6ed8ce8e29b043afae84e9413bfc8dac
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/mcueto/rust-book-chapter-3:/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] 351b2e4864f776592d180282fb5eb4902e7116f45e4529e95971dc350ee12a28
[INFO] running `"docker" "start" "-a" "351b2e4864f776592d180282fb5eb4902e7116f45e4529e95971dc350ee12a28"`
[INFO] [stderr]    Compiling variables v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `"docker" "inspect" "351b2e4864f776592d180282fb5eb4902e7116f45e4529e95971dc350ee12a28"`
[INFO] running `"docker" "rm" "-f" "351b2e4864f776592d180282fb5eb4902e7116f45e4529e95971dc350ee12a28"`
[INFO] [stdout] 351b2e4864f776592d180282fb5eb4902e7116f45e4529e95971dc350ee12a28
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/mcueto/rust-book-chapter-3:/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] 43516f88abbbb7fc0e82d524057e69724594c3b83c01463bfcc7d4cd0b4341fa
[INFO] running `"docker" "start" "-a" "43516f88abbbb7fc0e82d524057e69724594c3b83c01463bfcc7d4cd0b4341fa"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/variables-e3610fb43b92d6f8
[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" "43516f88abbbb7fc0e82d524057e69724594c3b83c01463bfcc7d4cd0b4341fa"`
[INFO] running `"docker" "rm" "-f" "43516f88abbbb7fc0e82d524057e69724594c3b83c01463bfcc7d4cd0b4341fa"`
[INFO] [stdout] 43516f88abbbb7fc0e82d524057e69724594c3b83c01463bfcc7d4cd0b4341fa