[INFO] updating cached repository DCP-solved-with-Rust/dcp_00003
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/DCP-solved-with-Rust/dcp_00003
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/DCP-solved-with-Rust/dcp_00003" "work/ex/beta-1.38-1/sources/1.37.0/gh/DCP-solved-with-Rust/dcp_00003"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/DCP-solved-with-Rust/dcp_00003'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/DCP-solved-with-Rust/dcp_00003" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DCP-solved-with-Rust/dcp_00003"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DCP-solved-with-Rust/dcp_00003'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d76f6932e578d891f5433167a477c8e9c7e5ee03
[INFO] sha for GitHub repo DCP-solved-with-Rust/dcp_00003: d76f6932e578d891f5433167a477c8e9c7e5ee03
[INFO] validating manifest of DCP-solved-with-Rust/dcp_00003 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 DCP-solved-with-Rust/dcp_00003 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 DCP-solved-with-Rust/dcp_00003
[INFO] finished frobbing DCP-solved-with-Rust/dcp_00003
[INFO] frobbed toml for DCP-solved-with-Rust/dcp_00003 written to work/ex/beta-1.38-1/sources/1.37.0/gh/DCP-solved-with-Rust/dcp_00003/Cargo.toml
[INFO] started frobbing DCP-solved-with-Rust/dcp_00003
[INFO] finished frobbing DCP-solved-with-Rust/dcp_00003
[INFO] frobbed toml for DCP-solved-with-Rust/dcp_00003 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/DCP-solved-with-Rust/dcp_00003/Cargo.toml
[INFO] crate DCP-solved-with-Rust/dcp_00003 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 DCP-solved-with-Rust/dcp_00003 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-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/DCP-solved-with-Rust/dcp_00003:/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] 24898c84a45cb291efd20e2b3ac9bb97dcce868d8f1b39e37452fa0faf75eeb3
[INFO] running `"docker" "start" "-a" "24898c84a45cb291efd20e2b3ac9bb97dcce868d8f1b39e37452fa0faf75eeb3"`
[INFO] [stderr]    Compiling serde_json v1.0.20
[INFO] [stderr]    Compiling serde_derive v1.0.66
[INFO] [stderr]    Compiling dcp_00003 v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `serialize`
[INFO] [stderr]   --> src/lib.rs:50:1
[INFO] [stderr]    |
[INFO] [stderr] 50 | fn serialize (root: Node) -> String
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `deserialize`
[INFO] [stderr]   --> src/lib.rs:55:1
[INFO] [stderr]    |
[INFO] [stderr] 55 | fn deserialize (s: String) -> Node
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.10s
[INFO] running `"docker" "inspect" "24898c84a45cb291efd20e2b3ac9bb97dcce868d8f1b39e37452fa0faf75eeb3"`
[INFO] running `"docker" "rm" "-f" "24898c84a45cb291efd20e2b3ac9bb97dcce868d8f1b39e37452fa0faf75eeb3"`
[INFO] [stdout] 24898c84a45cb291efd20e2b3ac9bb97dcce868d8f1b39e37452fa0faf75eeb3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/DCP-solved-with-Rust/dcp_00003:/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] 824c104b0b68ab5c30ee7b4d8dd828cf7c65ce02d41f932f4431b87e0235215e
[INFO] running `"docker" "start" "-a" "824c104b0b68ab5c30ee7b4d8dd828cf7c65ce02d41f932f4431b87e0235215e"`
[INFO] [stderr]    Compiling dcp_00003 v0.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.25s
[INFO] running `"docker" "inspect" "824c104b0b68ab5c30ee7b4d8dd828cf7c65ce02d41f932f4431b87e0235215e"`
[INFO] running `"docker" "rm" "-f" "824c104b0b68ab5c30ee7b4d8dd828cf7c65ce02d41f932f4431b87e0235215e"`
[INFO] [stdout] 824c104b0b68ab5c30ee7b4d8dd828cf7c65ce02d41f932f4431b87e0235215e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/DCP-solved-with-Rust/dcp_00003:/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] a88b47042478aadfa0716cf4930a69036f51d9bcdb0b41b151ae0753e78a7757
[INFO] running `"docker" "start" "-a" "a88b47042478aadfa0716cf4930a69036f51d9bcdb0b41b151ae0753e78a7757"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/dcp_00003-e0273ca1f1a7a2ae
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests dcp_00003
[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" "a88b47042478aadfa0716cf4930a69036f51d9bcdb0b41b151ae0753e78a7757"`
[INFO] running `"docker" "rm" "-f" "a88b47042478aadfa0716cf4930a69036f51d9bcdb0b41b151ae0753e78a7757"`
[INFO] [stdout] a88b47042478aadfa0716cf4930a69036f51d9bcdb0b41b151ae0753e78a7757