[INFO] updating cached repository arxipoff/rust_learning
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/arxipoff/rust_learning
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/arxipoff/rust_learning" "work/ex/beta-1.38-1/sources/1.37.0/gh/arxipoff/rust_learning"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/arxipoff/rust_learning'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/arxipoff/rust_learning" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/arxipoff/rust_learning"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/arxipoff/rust_learning'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] dd9dab386c312fb618a7177f4076b3943073cc35
[INFO] sha for GitHub repo arxipoff/rust_learning: dd9dab386c312fb618a7177f4076b3943073cc35
[INFO] validating manifest of arxipoff/rust_learning 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 arxipoff/rust_learning 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 arxipoff/rust_learning
[INFO] finished frobbing arxipoff/rust_learning
[INFO] frobbed toml for arxipoff/rust_learning written to work/ex/beta-1.38-1/sources/1.37.0/gh/arxipoff/rust_learning/Cargo.toml
[INFO] started frobbing arxipoff/rust_learning
[INFO] finished frobbing arxipoff/rust_learning
[INFO] frobbed toml for arxipoff/rust_learning written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/arxipoff/rust_learning/Cargo.toml
[INFO] crate arxipoff/rust_learning 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing arxipoff/rust_learning against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/arxipoff/rust_learning:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 052fcf03682e45e1be5e045aded193b7c13c0d29b94d4c80f19def5423ce056a
[INFO] running `"docker" "start" "-a" "052fcf03682e45e1be5e045aded193b7c13c0d29b94d4c80f19def5423ce056a"`
[INFO] [stderr]    Compiling rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `"docker" "inspect" "052fcf03682e45e1be5e045aded193b7c13c0d29b94d4c80f19def5423ce056a"`
[INFO] running `"docker" "rm" "-f" "052fcf03682e45e1be5e045aded193b7c13c0d29b94d4c80f19def5423ce056a"`
[INFO] [stdout] 052fcf03682e45e1be5e045aded193b7c13c0d29b94d4c80f19def5423ce056a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/arxipoff/rust_learning:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 5928a49751572fff3e7e221825350990e36e29abcae0560b41c7e806ce6b41f5
[INFO] running `"docker" "start" "-a" "5928a49751572fff3e7e221825350990e36e29abcae0560b41c7e806ce6b41f5"`
[INFO] [stderr]    Compiling rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `"docker" "inspect" "5928a49751572fff3e7e221825350990e36e29abcae0560b41c7e806ce6b41f5"`
[INFO] running `"docker" "rm" "-f" "5928a49751572fff3e7e221825350990e36e29abcae0560b41c7e806ce6b41f5"`
[INFO] [stdout] 5928a49751572fff3e7e221825350990e36e29abcae0560b41c7e806ce6b41f5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/arxipoff/rust_learning:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] e864eadca313938961c13c188eb2f8b97dfa7795af2585cdf340cdfbc87d568f
[INFO] running `"docker" "start" "-a" "e864eadca313938961c13c188eb2f8b97dfa7795af2585cdf340cdfbc87d568f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust-c3b09b881635ba82
[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" "e864eadca313938961c13c188eb2f8b97dfa7795af2585cdf340cdfbc87d568f"`
[INFO] running `"docker" "rm" "-f" "e864eadca313938961c13c188eb2f8b97dfa7795af2585cdf340cdfbc87d568f"`
[INFO] [stdout] e864eadca313938961c13c188eb2f8b97dfa7795af2585cdf340cdfbc87d568f