[INFO] updating cached repository tercen/rustson
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tercen/rustson
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tercen/rustson" "work/ex/beta-1.37-6/sources/1.36.0/gh/tercen/rustson"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/tercen/rustson'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tercen/rustson" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/tercen/rustson"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/tercen/rustson'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1e76b230626c13eaa6920cec0ab26d34273e15cc
[INFO] sha for GitHub repo tercen/rustson: 1e76b230626c13eaa6920cec0ab26d34273e15cc
[INFO] validating manifest of tercen/rustson on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tercen/rustson on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tercen/rustson
[INFO] finished frobbing tercen/rustson
[INFO] frobbed toml for tercen/rustson written to work/ex/beta-1.37-6/sources/1.36.0/gh/tercen/rustson/Cargo.toml
[INFO] started frobbing tercen/rustson
[INFO] finished frobbing tercen/rustson
[INFO] frobbed toml for tercen/rustson written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/tercen/rustson/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing tercen/rustson against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/tercen/rustson:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] a0eb70b75eb3d23e672f83d54677fc50b7286e74ae05dbdba488015646193ff9
[INFO] running `"docker" "start" "-a" "a0eb70b75eb3d23e672f83d54677fc50b7286e74ae05dbdba488015646193ff9"`
[INFO] [stderr]    Compiling tokio-io v0.1.12
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling tokio-reactor v0.1.9
[INFO] [stderr]    Compiling tokio-fs v0.1.6
[INFO] [stderr]    Compiling tokio-uds v0.2.5
[INFO] [stderr]    Compiling tokio-udp v0.1.3
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling tokio-core v0.1.17
[INFO] [stderr]    Compiling rustson v0.2.10 (/opt/crater/workdir)
[INFO] [stderr] warning: struct is never constructed: `SerializerStream`
[INFO] [stderr]  --> src/stream.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | struct SerializerStream<'v> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/stream.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn new(max_buf_len: usize, value: &'v Value) -> SerializerStream<'v> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.79s
[INFO] running `"docker" "inspect" "a0eb70b75eb3d23e672f83d54677fc50b7286e74ae05dbdba488015646193ff9"`
[INFO] running `"docker" "rm" "-f" "a0eb70b75eb3d23e672f83d54677fc50b7286e74ae05dbdba488015646193ff9"`
[INFO] [stdout] a0eb70b75eb3d23e672f83d54677fc50b7286e74ae05dbdba488015646193ff9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/tercen/rustson:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4b538b97c28e33c52aa92cb74173e2de2a2d8bab31c357ea55fca4d08cc7fd30
[INFO] running `"docker" "start" "-a" "4b538b97c28e33c52aa92cb74173e2de2a2d8bab31c357ea55fca4d08cc7fd30"`
[INFO] [stderr]    Compiling rustson v0.2.10 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `futures::future::lazy`
[INFO] [stderr]   --> src/stream.rs:66:13
[INFO] [stderr]    |
[INFO] [stderr] 66 |         use futures::future::lazy;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tokio::runtime::Runtime`
[INFO] [stderr]   --> src/stream.rs:68:13
[INFO] [stderr]    |
[INFO] [stderr] 68 |         use tokio::runtime::Runtime;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `encode_decode`
[INFO] [stderr]   --> src/stream.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn encode_decode(object: &Value) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/stream.rs:109:9
[INFO] [stderr]     |
[INFO] [stderr] 109 |         core.run(fut);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.66s
[INFO] running `"docker" "inspect" "4b538b97c28e33c52aa92cb74173e2de2a2d8bab31c357ea55fca4d08cc7fd30"`
[INFO] running `"docker" "rm" "-f" "4b538b97c28e33c52aa92cb74173e2de2a2d8bab31c357ea55fca4d08cc7fd30"`
[INFO] [stdout] 4b538b97c28e33c52aa92cb74173e2de2a2d8bab31c357ea55fca4d08cc7fd30
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/tercen/rustson:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 106f6ed8c1c659456d023be9ec7907e176ae8ae7f785f6af02c7b6081b6b4401
[INFO] running `"docker" "start" "-a" "106f6ed8c1c659456d023be9ec7907e176ae8ae7f785f6af02c7b6081b6b4401"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rustson-66221f5dbbe366f3
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::empty_lst ... ok
[INFO] [stdout] test ser2::tests::serializer2 ... ok
[INFO] [stdout] test stream::tests::serializer_stream ... ok
[INFO] [stdout] test tests::null ... ok
[INFO] [stdout] test tests::map ... ok
[INFO] [stdout] test tests::lst ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rustson
[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" "106f6ed8c1c659456d023be9ec7907e176ae8ae7f785f6af02c7b6081b6b4401"`
[INFO] running `"docker" "rm" "-f" "106f6ed8c1c659456d023be9ec7907e176ae8ae7f785f6af02c7b6081b6b4401"`
[INFO] [stdout] 106f6ed8c1c659456d023be9ec7907e176ae8ae7f785f6af02c7b6081b6b4401