[INFO] crate crate_hello_world 0.1.1 is already in cache
[INFO] extracting crate crate_hello_world 0.1.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/crate_hello_world/0.1.1
[INFO] extracting crate crate_hello_world 0.1.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/crate_hello_world/0.1.1
[INFO] validating manifest of crate_hello_world-0.1.1 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 crate_hello_world-0.1.1 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 crate_hello_world-0.1.1
[INFO] finished frobbing crate_hello_world-0.1.1
[INFO] frobbed toml for crate_hello_world-0.1.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/crate_hello_world/0.1.1/Cargo.toml
[INFO] started frobbing crate_hello_world-0.1.1
[INFO] finished frobbing crate_hello_world-0.1.1
[INFO] frobbed toml for crate_hello_world-0.1.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/crate_hello_world/0.1.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing crate_hello_world-0.1.1 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/crate_hello_world/0.1.1:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 458e347c07a3c8b7d9cee299e53f18ba68613364be88922c63e8931801aaf920
[INFO] running `"docker" "start" "-a" "458e347c07a3c8b7d9cee299e53f18ba68613364be88922c63e8931801aaf920"`
[INFO] [stderr] warning: file found to be present in multiple build targets: /opt/crater/workdir/src/main.rs
[INFO] [stderr]    Compiling crate_hello_world v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `main`
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | fn main() {
[INFO] [stderr]   | ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `"docker" "inspect" "458e347c07a3c8b7d9cee299e53f18ba68613364be88922c63e8931801aaf920"`
[INFO] running `"docker" "rm" "-f" "458e347c07a3c8b7d9cee299e53f18ba68613364be88922c63e8931801aaf920"`
[INFO] [stdout] 458e347c07a3c8b7d9cee299e53f18ba68613364be88922c63e8931801aaf920
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/crate_hello_world/0.1.1:/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 463eb00368b5f6e46b9944d80aa9e15dbb9920d54ee49ae7030e8e5040e2d6cf
[INFO] running `"docker" "start" "-a" "463eb00368b5f6e46b9944d80aa9e15dbb9920d54ee49ae7030e8e5040e2d6cf"`
[INFO] [stderr] warning: file found to be present in multiple build targets: /opt/crater/workdir/src/main.rs
[INFO] [stderr]    Compiling crate_hello_world v0.1.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `"docker" "inspect" "463eb00368b5f6e46b9944d80aa9e15dbb9920d54ee49ae7030e8e5040e2d6cf"`
[INFO] running `"docker" "rm" "-f" "463eb00368b5f6e46b9944d80aa9e15dbb9920d54ee49ae7030e8e5040e2d6cf"`
[INFO] [stdout] 463eb00368b5f6e46b9944d80aa9e15dbb9920d54ee49ae7030e8e5040e2d6cf
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/crate_hello_world/0.1.1:/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 94e9e091be5eff967f8fe223430e173c9dab5b3c5dd28b57322b0d9b8cec50fb
[INFO] running `"docker" "start" "-a" "94e9e091be5eff967f8fe223430e173c9dab5b3c5dd28b57322b0d9b8cec50fb"`
[INFO] [stderr] warning: file found to be present in multiple build targets: /opt/crater/workdir/src/main.rs
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/crate_hello_world-b077934eb5a08219
[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] [stderr]      Running /opt/crater/target/debug/deps/crate_hello_world-e2281822fddb7bcc
[INFO] [stderr]    Doc-tests crate_hello_world
[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] [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" "94e9e091be5eff967f8fe223430e173c9dab5b3c5dd28b57322b0d9b8cec50fb"`
[INFO] running `"docker" "rm" "-f" "94e9e091be5eff967f8fe223430e173c9dab5b3c5dd28b57322b0d9b8cec50fb"`
[INFO] [stdout] 94e9e091be5eff967f8fe223430e173c9dab5b3c5dd28b57322b0d9b8cec50fb