[INFO] crate doh-client 1.4.2 is already in cache
[INFO] extracting crate doh-client 1.4.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/doh-client/1.4.2
[INFO] extracting crate doh-client 1.4.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/doh-client/1.4.2
[INFO] validating manifest of doh-client-1.4.2 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 doh-client-1.4.2 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 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-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/reg/doh-client/1.4.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "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" "+beta-2019-08-13" "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" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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 doh-client-1.4.2 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-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 5370c5d537d1d9edeebb9a012aa8f623f923884079e5b84b0f695bac77241a09
[INFO] running `"docker" "start" "-a" "5370c5d537d1d9edeebb9a012aa8f623f923884079e5b84b0f695bac77241a09"`
[INFO] [stderr]    Compiling lru v0.1.17
[INFO] [stderr]    Compiling futures-locks v0.3.3
[INFO] [stderr]    Compiling tokio-rustls v0.9.3
[INFO] [stderr]    Compiling h2 v0.1.26
[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 13.35s
[INFO] running `"docker" "inspect" "5370c5d537d1d9edeebb9a012aa8f623f923884079e5b84b0f695bac77241a09"`
[INFO] running `"docker" "rm" "-f" "5370c5d537d1d9edeebb9a012aa8f623f923884079e5b84b0f695bac77241a09"`
[INFO] [stdout] 5370c5d537d1d9edeebb9a012aa8f623f923884079e5b84b0f695bac77241a09
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 45f0877f09720ca403f764b3d0767d1f06db6a3990d52b0cda7f0228ec126be1
[INFO] running `"docker" "start" "-a" "45f0877f09720ca403f764b3d0767d1f06db6a3990d52b0cda7f0228ec126be1"`
[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 3.09s
[INFO] running `"docker" "inspect" "45f0877f09720ca403f764b3d0767d1f06db6a3990d52b0cda7f0228ec126be1"`
[INFO] running `"docker" "rm" "-f" "45f0877f09720ca403f764b3d0767d1f06db6a3990d52b0cda7f0228ec126be1"`
[INFO] [stdout] 45f0877f09720ca403f764b3d0767d1f06db6a3990d52b0cda7f0228ec126be1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 883e6979a3acb1d98b49a396b3e9586ece59b63ab14dd3bc32c87c84563c8f14
[INFO] running `"docker" "start" "-a" "883e6979a3acb1d98b49a396b3e9586ece59b63ab14dd3bc32c87c84563c8f14"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/doh_client-4afde55fa543783a
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[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_1 ... ok
[INFO] [stdout] test cache::test_2 ... ok
[INFO] [stdout] test cache::test_4 ... ok
[INFO] [stdout] test cache::test_3 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/doh_client-33b769af84ac83bb
[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]    Doc-tests doh-client
[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" "883e6979a3acb1d98b49a396b3e9586ece59b63ab14dd3bc32c87c84563c8f14"`
[INFO] running `"docker" "rm" "-f" "883e6979a3acb1d98b49a396b3e9586ece59b63ab14dd3bc32c87c84563c8f14"`
[INFO] [stdout] 883e6979a3acb1d98b49a396b3e9586ece59b63ab14dd3bc32c87c84563c8f14