[INFO] updating cached repository Mighty683/rust-json
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Mighty683/rust-json
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Mighty683/rust-json" "work/ex/beta-1.38-1/sources/1.37.0/gh/Mighty683/rust-json"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Mighty683/rust-json'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Mighty683/rust-json" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Mighty683/rust-json"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Mighty683/rust-json'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cf8a961af8051431a17c07365e1eacbb27950975
[INFO] sha for GitHub repo Mighty683/rust-json: cf8a961af8051431a17c07365e1eacbb27950975
[INFO] validating manifest of Mighty683/rust-json 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 Mighty683/rust-json 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 Mighty683/rust-json
[INFO] finished frobbing Mighty683/rust-json
[INFO] frobbed toml for Mighty683/rust-json written to work/ex/beta-1.38-1/sources/1.37.0/gh/Mighty683/rust-json/Cargo.toml
[INFO] started frobbing Mighty683/rust-json
[INFO] finished frobbing Mighty683/rust-json
[INFO] frobbed toml for Mighty683/rust-json written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Mighty683/rust-json/Cargo.toml
[INFO] crate Mighty683/rust-json 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 Mighty683/rust-json 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Mighty683/rust-json:/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] 9503a549dd287cb418c3cbb582105a10de88e9ac106be50425aa47d41ad0f19f
[INFO] running `"docker" "start" "-a" "9503a549dd287cb418c3cbb582105a10de88e9ac106be50425aa47d41ad0f19f"`
[INFO] [stderr]    Compiling rust-json v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `regex::Regex`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use regex::Regex;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `json`
[INFO] [stderr]   --> src/main.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 25 |     let json = &args[1];
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_json`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Text`
[INFO] [stderr]  --> src/main.rs:7:3
[INFO] [stderr]   |
[INFO] [stderr] 7 |   Text(String),
[INFO] [stderr]   |   ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Number`
[INFO] [stderr]  --> src/main.rs:8:3
[INFO] [stderr]   |
[INFO] [stderr] 8 |   Number(f32),
[INFO] [stderr]   |   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Node`
[INFO] [stderr]  --> src/main.rs:9:3
[INFO] [stderr]   |
[INFO] [stderr] 9 |   Node,
[INFO] [stderr]   |   ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `None`
[INFO] [stderr]   --> src/main.rs:10:3
[INFO] [stderr]    |
[INFO] [stderr] 10 |   None
[INFO] [stderr]    |   ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `name`
[INFO] [stderr]   --> src/main.rs:14:3
[INFO] [stderr]    |
[INFO] [stderr] 14 |   name: String,
[INFO] [stderr]    |   ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `children`
[INFO] [stderr]   --> src/main.rs:15:3
[INFO] [stderr]    |
[INFO] [stderr] 15 |   children: Vec<Node>,
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `node_type`
[INFO] [stderr]   --> src/main.rs:16:3
[INFO] [stderr]    |
[INFO] [stderr] 16 |   node_type: NodeType
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse`
[INFO] [stderr]   --> src/main.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn parse (json: String) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.63s
[INFO] running `"docker" "inspect" "9503a549dd287cb418c3cbb582105a10de88e9ac106be50425aa47d41ad0f19f"`
[INFO] running `"docker" "rm" "-f" "9503a549dd287cb418c3cbb582105a10de88e9ac106be50425aa47d41ad0f19f"`
[INFO] [stdout] 9503a549dd287cb418c3cbb582105a10de88e9ac106be50425aa47d41ad0f19f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Mighty683/rust-json:/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] 59319390adda55f69e99937a2b02b54ca8e5167f764bad2e2128beb60486707e
[INFO] running `"docker" "start" "-a" "59319390adda55f69e99937a2b02b54ca8e5167f764bad2e2128beb60486707e"`
[INFO] [stderr]    Compiling rust-json v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `regex::Regex`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use regex::Regex;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `json`
[INFO] [stderr]   --> src/main.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 25 |     let json = &args[1];
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_json`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Text`
[INFO] [stderr]  --> src/main.rs:7:3
[INFO] [stderr]   |
[INFO] [stderr] 7 |   Text(String),
[INFO] [stderr]   |   ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Number`
[INFO] [stderr]  --> src/main.rs:8:3
[INFO] [stderr]   |
[INFO] [stderr] 8 |   Number(f32),
[INFO] [stderr]   |   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Node`
[INFO] [stderr]  --> src/main.rs:9:3
[INFO] [stderr]   |
[INFO] [stderr] 9 |   Node,
[INFO] [stderr]   |   ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `None`
[INFO] [stderr]   --> src/main.rs:10:3
[INFO] [stderr]    |
[INFO] [stderr] 10 |   None
[INFO] [stderr]    |   ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `name`
[INFO] [stderr]   --> src/main.rs:14:3
[INFO] [stderr]    |
[INFO] [stderr] 14 |   name: String,
[INFO] [stderr]    |   ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `children`
[INFO] [stderr]   --> src/main.rs:15:3
[INFO] [stderr]    |
[INFO] [stderr] 15 |   children: Vec<Node>,
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `node_type`
[INFO] [stderr]   --> src/main.rs:16:3
[INFO] [stderr]    |
[INFO] [stderr] 16 |   node_type: NodeType
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse`
[INFO] [stderr]   --> src/main.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn parse (json: String) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `"docker" "inspect" "59319390adda55f69e99937a2b02b54ca8e5167f764bad2e2128beb60486707e"`
[INFO] running `"docker" "rm" "-f" "59319390adda55f69e99937a2b02b54ca8e5167f764bad2e2128beb60486707e"`
[INFO] [stdout] 59319390adda55f69e99937a2b02b54ca8e5167f764bad2e2128beb60486707e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Mighty683/rust-json:/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] 25fff4bafccec8a9e35aae1c79d4b2b879b317fec9cfef1911d815c48708fcdd
[INFO] running `"docker" "start" "-a" "25fff4bafccec8a9e35aae1c79d4b2b879b317fec9cfef1911d815c48708fcdd"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_json-a4988fd1c3d9975b
[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" "25fff4bafccec8a9e35aae1c79d4b2b879b317fec9cfef1911d815c48708fcdd"`
[INFO] running `"docker" "rm" "-f" "25fff4bafccec8a9e35aae1c79d4b2b879b317fec9cfef1911d815c48708fcdd"`
[INFO] [stdout] 25fff4bafccec8a9e35aae1c79d4b2b879b317fec9cfef1911d815c48708fcdd