[INFO] updating cached repository ruchern/learn-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ruchern/learn-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ruchern/learn-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/ruchern/learn-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/ruchern/learn-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ruchern/learn-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ruchern/learn-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ruchern/learn-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a433840283f24e4e9e7663129bd6a2093a68f480
[INFO] sha for GitHub repo ruchern/learn-rust: a433840283f24e4e9e7663129bd6a2093a68f480
[INFO] validating manifest of ruchern/learn-rust 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 ruchern/learn-rust 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 ruchern/learn-rust
[INFO] finished frobbing ruchern/learn-rust
[INFO] frobbed toml for ruchern/learn-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/ruchern/learn-rust/Cargo.toml
[INFO] started frobbing ruchern/learn-rust
[INFO] finished frobbing ruchern/learn-rust
[INFO] frobbed toml for ruchern/learn-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ruchern/learn-rust/Cargo.toml
[INFO] crate ruchern/learn-rust 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 ruchern/learn-rust 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ruchern/learn-rust:/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] 8e1fa4f2ef2c1c8e8a7e7b0300fd5ceb5b8252e9ba2f7904a39e5d7c389e28bf
[INFO] running `"docker" "start" "-a" "8e1fa4f2ef2c1c8e8a7e7b0300fd5ceb5b8252e9ba2f7904a39e5d7c389e28bf"`
[INFO] [stderr]    Compiling learn-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `"docker" "inspect" "8e1fa4f2ef2c1c8e8a7e7b0300fd5ceb5b8252e9ba2f7904a39e5d7c389e28bf"`
[INFO] running `"docker" "rm" "-f" "8e1fa4f2ef2c1c8e8a7e7b0300fd5ceb5b8252e9ba2f7904a39e5d7c389e28bf"`
[INFO] [stdout] 8e1fa4f2ef2c1c8e8a7e7b0300fd5ceb5b8252e9ba2f7904a39e5d7c389e28bf
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ruchern/learn-rust:/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] 34723a337bf842e916ee9ee4e9719dd54ed3656e5174fd2e862e1ccf2daef6c6
[INFO] running `"docker" "start" "-a" "34723a337bf842e916ee9ee4e9719dd54ed3656e5174fd2e862e1ccf2daef6c6"`
[INFO] [stderr]    Compiling learn-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `"docker" "inspect" "34723a337bf842e916ee9ee4e9719dd54ed3656e5174fd2e862e1ccf2daef6c6"`
[INFO] running `"docker" "rm" "-f" "34723a337bf842e916ee9ee4e9719dd54ed3656e5174fd2e862e1ccf2daef6c6"`
[INFO] [stdout] 34723a337bf842e916ee9ee4e9719dd54ed3656e5174fd2e862e1ccf2daef6c6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ruchern/learn-rust:/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] 9ed49779a31113a392447d670f94b11140bafb22d91ebd6cf23489e6a41eb854
[INFO] running `"docker" "start" "-a" "9ed49779a31113a392447d670f94b11140bafb22d91ebd6cf23489e6a41eb854"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/learn_rust-2d261689dd057481
[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" "9ed49779a31113a392447d670f94b11140bafb22d91ebd6cf23489e6a41eb854"`
[INFO] running `"docker" "rm" "-f" "9ed49779a31113a392447d670f94b11140bafb22d91ebd6cf23489e6a41eb854"`
[INFO] [stdout] 9ed49779a31113a392447d670f94b11140bafb22d91ebd6cf23489e6a41eb854