[INFO] crate doh-client 1.4.2 is already in cache
[INFO] extracting crate doh-client 1.4.2 into work/ex/beta-1.37-6/sources/1.36.0/reg/doh-client/1.4.2
[INFO] extracting crate doh-client 1.4.2 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/doh-client/1.4.2
[INFO] validating manifest of doh-client-1.4.2 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 doh-client-1.4.2 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 doh-client-1.4.2
[INFO] finished frobbing doh-client-1.4.2
[INFO] frobbed toml for doh-client-1.4.2 written to work/ex/beta-1.37-6/sources/1.36.0/reg/doh-client/1.4.2/Cargo.toml
[INFO] started frobbing doh-client-1.4.2
[INFO] finished frobbing doh-client-1.4.2
[INFO] frobbed toml for doh-client-1.4.2 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/doh-client/1.4.2/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] [stderr]     Blocking waiting for file lock on package cache
[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 doh-client-1.4.2 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/reg/doh-client/1.4.2:/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] acca5572fb6a87f2ea2102270345eb276d3f63e1117a1e2a5ac5a2bfa1d79627
[INFO] running `"docker" "start" "-a" "acca5572fb6a87f2ea2102270345eb276d3f63e1117a1e2a5ac5a2bfa1d79627"`
[INFO] [stderr]    Compiling futures-locks v0.3.3
[INFO] [stderr]    Compiling rustls v0.15.2
[INFO] [stderr]    Compiling tokio-rustls v0.9.3
[INFO] [stderr]    Compiling doh-client v1.4.2 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/http2.rs:222:40
[INFO] [stderr]     |
[INFO] [stderr] 222 |                                 Ready((mut send_request, connection)) => {
[INFO] [stderr]     |                                        ----^^^^^^^^^^^^
[INFO] [stderr]     |                                        |
[INFO] [stderr]     |                                        help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/http2.rs:541:43
[INFO] [stderr]     |
[INFO] [stderr] 541 |                                     Ready(mut body) => {
[INFO] [stderr]     |                                           ----^^^^
[INFO] [stderr]     |                                           |
[INFO] [stderr]     |                                           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.08s
[INFO] running `"docker" "inspect" "acca5572fb6a87f2ea2102270345eb276d3f63e1117a1e2a5ac5a2bfa1d79627"`
[INFO] running `"docker" "rm" "-f" "acca5572fb6a87f2ea2102270345eb276d3f63e1117a1e2a5ac5a2bfa1d79627"`
[INFO] [stdout] acca5572fb6a87f2ea2102270345eb276d3f63e1117a1e2a5ac5a2bfa1d79627
[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/reg/doh-client/1.4.2:/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] c069c79841b20849db938723bb419a779642c78eab17d88ddf328c07d717dbe5
[INFO] running `"docker" "start" "-a" "c069c79841b20849db938723bb419a779642c78eab17d88ddf328c07d717dbe5"`
[INFO] [stderr]    Compiling doh-client v1.4.2 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/http2.rs:222:40
[INFO] [stderr]     |
[INFO] [stderr] 222 |                                 Ready((mut send_request, connection)) => {
[INFO] [stderr]     |                                        ----^^^^^^^^^^^^
[INFO] [stderr]     |                                        |
[INFO] [stderr]     |                                        help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/http2.rs:541:43
[INFO] [stderr]     |
[INFO] [stderr] 541 |                                     Ready(mut body) => {
[INFO] [stderr]     |                                           ----^^^^
[INFO] [stderr]     |                                           |
[INFO] [stderr]     |                                           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.89s
[INFO] running `"docker" "inspect" "c069c79841b20849db938723bb419a779642c78eab17d88ddf328c07d717dbe5"`
[INFO] running `"docker" "rm" "-f" "c069c79841b20849db938723bb419a779642c78eab17d88ddf328c07d717dbe5"`
[INFO] [stdout] c069c79841b20849db938723bb419a779642c78eab17d88ddf328c07d717dbe5
[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/reg/doh-client/1.4.2:/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] 7f8459753b40f8c85197f6d70100dd1d9bb9f89ac6170bdc743d2ab822be298f
[INFO] running `"docker" "start" "-a" "7f8459753b40f8c85197f6d70100dd1d9bb9f89ac6170bdc743d2ab822be298f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/doh_client-ff01e9b5b69d4ef4
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test cache::test_2 ... ok
[INFO] [stdout] test cache::test_1 ... ok
[INFO] [stdout] test tests::base64url_a_62characterlabel_makes_base64url_distinct_from_standard_base64_example_com ... ok
[INFO] [stdout] test tests::base64url_www_example_com ... ok
[INFO] [stdout] test cache::test_4 ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/doh_client-9e8a7db322a8fd6d
[INFO] [stdout] test cache::test_3 ... ok
[INFO] [stderr]    Doc-tests doh-client
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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] [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" "7f8459753b40f8c85197f6d70100dd1d9bb9f89ac6170bdc743d2ab822be298f"`
[INFO] running `"docker" "rm" "-f" "7f8459753b40f8c85197f6d70100dd1d9bb9f89ac6170bdc743d2ab822be298f"`
[INFO] [stdout] 7f8459753b40f8c85197f6d70100dd1d9bb9f89ac6170bdc743d2ab822be298f