[INFO] updating cached repository qingxiang-jia/learn-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/qingxiang-jia/learn-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/qingxiang-jia/learn-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/qingxiang-jia/learn-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/qingxiang-jia/learn-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/qingxiang-jia/learn-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/qingxiang-jia/learn-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/qingxiang-jia/learn-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7a5d82ab7d8a21c1f2d7f96fda45dd273c842694
[INFO] sha for GitHub repo qingxiang-jia/learn-rust: 7a5d82ab7d8a21c1f2d7f96fda45dd273c842694
[INFO] validating manifest of qingxiang-jia/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 qingxiang-jia/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 qingxiang-jia/learn-rust
[INFO] finished frobbing qingxiang-jia/learn-rust
[INFO] frobbed toml for qingxiang-jia/learn-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/qingxiang-jia/learn-rust/Cargo.toml
[INFO] started frobbing qingxiang-jia/learn-rust
[INFO] finished frobbing qingxiang-jia/learn-rust
[INFO] frobbed toml for qingxiang-jia/learn-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/qingxiang-jia/learn-rust/Cargo.toml
[INFO] crate qingxiang-jia/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] [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] testing qingxiang-jia/learn-rust 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-4/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/qingxiang-jia/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 1b2b85daa2ded07f6a3859b72b16511df72b379eb4ce015bc7b2277c62f8e9aa
[INFO] running `"docker" "start" "-a" "1b2b85daa2ded07f6a3859b72b16511df72b379eb4ce015bc7b2277c62f8e9aa"`
[INFO] [stderr]    Compiling serde v1.0.37
[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 serde_json v1.0.13
[INFO] [stderr]    Compiling learn_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.97s
[INFO] running `"docker" "inspect" "1b2b85daa2ded07f6a3859b72b16511df72b379eb4ce015bc7b2277c62f8e9aa"`
[INFO] running `"docker" "rm" "-f" "1b2b85daa2ded07f6a3859b72b16511df72b379eb4ce015bc7b2277c62f8e9aa"`
[INFO] [stdout] 1b2b85daa2ded07f6a3859b72b16511df72b379eb4ce015bc7b2277c62f8e9aa
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/qingxiang-jia/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 41f51beb7231ef5dab8ea9a05999048638c0f527ccfe013ec6e6f0127a3dbfcc
[INFO] running `"docker" "start" "-a" "41f51beb7231ef5dab8ea9a05999048638c0f527ccfe013ec6e6f0127a3dbfcc"`
[INFO] [stderr]    Compiling learn_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `"docker" "inspect" "41f51beb7231ef5dab8ea9a05999048638c0f527ccfe013ec6e6f0127a3dbfcc"`
[INFO] running `"docker" "rm" "-f" "41f51beb7231ef5dab8ea9a05999048638c0f527ccfe013ec6e6f0127a3dbfcc"`
[INFO] [stdout] 41f51beb7231ef5dab8ea9a05999048638c0f527ccfe013ec6e6f0127a3dbfcc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/qingxiang-jia/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 63354b24ddab1f8d1a6342442295b1d546aa7a09577c76e4dfdfd67d5924ba43
[INFO] running `"docker" "start" "-a" "63354b24ddab1f8d1a6342442295b1d546aa7a09577c76e4dfdfd67d5924ba43"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/serde_fun-b406b46fa654db7c
[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/udp_cmd-2033b839d73575de
[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" "63354b24ddab1f8d1a6342442295b1d546aa7a09577c76e4dfdfd67d5924ba43"`
[INFO] running `"docker" "rm" "-f" "63354b24ddab1f8d1a6342442295b1d546aa7a09577c76e4dfdfd67d5924ba43"`
[INFO] [stdout] 63354b24ddab1f8d1a6342442295b1d546aa7a09577c76e4dfdfd67d5924ba43