[INFO] updating cached repository https://github.com/qingxiang-jia/learn-rust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7a5d82ab7d8a21c1f2d7f96fda45dd273c842694
[INFO] testing qingxiang-jia/learn-rust against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqingxiang-jia%2Flearn-rust" "work/builds/worker-5/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/qingxiang-jia/learn-rust on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/qingxiang-jia/learn-rust
[INFO] finished tweaking git repo https://github.com/qingxiang-jia/learn-rust
[INFO] tweaked toml for git repo https://github.com/qingxiang-jia/learn-rust written to work/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/qingxiang-jia/learn-rust already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 9b936c89cedd4ff8d6f6f5f19f58f4b14575b6e60a6e822552abe316d297d845
[INFO] running `"docker" "start" "-a" "9b936c89cedd4ff8d6f6f5f19f58f4b14575b6e60a6e822552abe316d297d845"`
[INFO] [stderr]    Compiling proc-macro2 v0.3.3
[INFO] [stderr]    Compiling quote v0.5.1
[INFO] [stderr]    Compiling syn v0.13.1
[INFO] [stderr]    Compiling serde_derive_internals v0.23.0
[INFO] [stderr]    Compiling serde_derive v1.0.37
[INFO] [stderr]    Compiling learn_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.36s
[INFO] running `"docker" "inspect" "9b936c89cedd4ff8d6f6f5f19f58f4b14575b6e60a6e822552abe316d297d845"`
[INFO] running `"docker" "rm" "-f" "9b936c89cedd4ff8d6f6f5f19f58f4b14575b6e60a6e822552abe316d297d845"`
[INFO] [stdout] 9b936c89cedd4ff8d6f6f5f19f58f4b14575b6e60a6e822552abe316d297d845
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 36a355b99e48b03d5c066756cdf5d168ebd5de6d5b20b9e7438e0864ac471b48
[INFO] running `"docker" "start" "-a" "36a355b99e48b03d5c066756cdf5d168ebd5de6d5b20b9e7438e0864ac471b48"`
[INFO] [stderr]    Compiling learn_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `"docker" "inspect" "36a355b99e48b03d5c066756cdf5d168ebd5de6d5b20b9e7438e0864ac471b48"`
[INFO] running `"docker" "rm" "-f" "36a355b99e48b03d5c066756cdf5d168ebd5de6d5b20b9e7438e0864ac471b48"`
[INFO] [stdout] 36a355b99e48b03d5c066756cdf5d168ebd5de6d5b20b9e7438e0864ac471b48
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 68d6b31f6aa33416e31a1ae9a46fb6156b64b5b1e29a99064a29345f0229d5be
[INFO] running `"docker" "start" "-a" "68d6b31f6aa33416e31a1ae9a46fb6156b64b5b1e29a99064a29345f0229d5be"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/serde_fun-d408828029c1ac5d
[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/rustwide/target/debug/deps/udp_cmd-2828954403f2ff7d
[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" "68d6b31f6aa33416e31a1ae9a46fb6156b64b5b1e29a99064a29345f0229d5be"`
[INFO] running `"docker" "rm" "-f" "68d6b31f6aa33416e31a1ae9a46fb6156b64b5b1e29a99064a29345f0229d5be"`
[INFO] [stdout] 68d6b31f6aa33416e31a1ae9a46fb6156b64b5b1e29a99064a29345f0229d5be