[INFO] fetching crate h2 0.3.4...
[INFO] checking h2-0.3.4 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate h2 0.3.4 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate h2 0.3.4 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate h2 0.3.4
[INFO] finished tweaking crates.io crate h2 0.3.4
[INFO] tweaked toml for crates.io crate h2 0.3.4 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate h2 0.3.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded spin v0.5.2
[INFO] [stderr]   Downloaded untrusted v0.7.1
[INFO] [stderr]   Downloaded proc-macro2 v1.0.28
[INFO] [stderr]   Downloaded tokio-macros v1.3.0
[INFO] [stderr]   Downloaded pin-project-lite v0.2.7
[INFO] [stderr]   Downloaded slab v0.4.4
[INFO] [stderr]   Downloaded mio v0.7.13
[INFO] [stderr]   Downloaded http v0.2.4
[INFO] [stderr]   Downloaded futures-core v0.3.16
[INFO] [stderr]   Downloaded tracing-core v0.1.19
[INFO] [stderr]   Downloaded sct v0.6.1
[INFO] [stderr]   Downloaded serde_json v1.0.66
[INFO] [stderr]   Downloaded rustls v0.19.1
[INFO] [stderr]   Downloaded quick-error v1.2.3
[INFO] [stderr]   Downloaded hex v0.2.0
[INFO] [stderr]   Downloaded env_logger v0.5.13
[INFO] [stderr]   Downloaded serde v1.0.127
[INFO] [stderr]   Downloaded futures-util v0.3.16
[INFO] [stderr]   Downloaded webpki v0.21.4
[INFO] [stderr]   Downloaded same-file v0.1.3
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.76
[INFO] [stderr]   Downloaded walkdir v1.0.7
[INFO] [stderr]   Downloaded web-sys v0.3.53
[INFO] [stderr]   Downloaded futures-task v0.3.16
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.76
[INFO] [stderr]   Downloaded futures-sink v0.3.16
[INFO] [stderr]   Downloaded cc v1.0.69
[INFO] [stderr]   Downloaded bumpalo v3.7.0
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.76
[INFO] [stderr]   Downloaded libc v0.2.99
[INFO] [stderr]   Downloaded ring v0.16.20
[INFO] [stderr]   Downloaded webpki-roots v0.21.1
[INFO] [stderr]   Downloaded syn v1.0.74
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.76
[INFO] [stderr]   Downloaded js-sys v0.3.53
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.76
[INFO] [stderr]   Downloaded indexmap v1.7.0
[INFO] [stderr]   Downloaded tokio-rustls v0.22.0
[INFO] [stderr]   Downloaded miow v0.3.7
[INFO] [stderr]   Downloaded tokio-util v0.6.7
[INFO] [stderr]   Downloaded tracing v0.1.26
[INFO] [stderr]   Downloaded hashbrown v0.11.2
[INFO] [stderr]   Downloaded quickcheck v0.4.1
[INFO] [stderr]   Downloaded tokio v1.10.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 40f5eb7918c01cc2fe76548ade3f8d817b8e413177d4eed8badc6b8066c80c2b
[INFO] running `Command { std: "docker" "start" "-a" "40f5eb7918c01cc2fe76548ade3f8d817b8e413177d4eed8badc6b8066c80c2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "40f5eb7918c01cc2fe76548ade3f8d817b8e413177d4eed8badc6b8066c80c2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40f5eb7918c01cc2fe76548ade3f8d817b8e413177d4eed8badc6b8066c80c2b", kill_on_drop: false }`
[INFO] [stdout] 40f5eb7918c01cc2fe76548ade3f8d817b8e413177d4eed8badc6b8066c80c2b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 30af3ffc0c0cf5582a32c056ebf488364921bbb8bc6e7f0788cf0a92b395749b
[INFO] running `Command { std: "docker" "start" "-a" "30af3ffc0c0cf5582a32c056ebf488364921bbb8bc6e7f0788cf0a92b395749b", kill_on_drop: false }`
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]    Compiling futures-core v0.3.16
[INFO] [stderr]    Compiling futures-task v0.3.16
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-sink v0.3.16
[INFO] [stderr]     Checking same-file v0.1.3
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking slab v0.4.4
[INFO] [stderr]     Checking hex v0.2.0
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling tokio v1.10.0
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]     Checking tracing-core v0.1.19
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking walkdir v1.0.7
[INFO] [stderr]     Checking serde_json v1.0.66
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking quickcheck v0.4.1
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking sct v0.6.1
[INFO] [stderr]     Checking rustls v0.19.1
[INFO] [stderr]     Checking webpki-roots v0.21.1
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]     Checking tokio-util v0.6.7
[INFO] [stderr]     Checking tokio-rustls v0.22.0
[INFO] [stderr]     Checking h2 v0.3.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `head`
[INFO] [stdout]   --> src/proto/streams/recv.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 82 |     head: store::Key,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `tail`
[INFO] [stdout]   --> src/proto/streams/recv.rs:83:5
[INFO] [stdout]    |
[INFO] [stdout] 83 |     tail: store::Key,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: field is never read: `seed`
[INFO] [stdout]   --> src/hpack/test/fuzz.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     seed: [usize; 4],
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:83:24
[INFO] [stdout]    |
[INFO] [stdout] 83 | #![cfg_attr(test, deny(warnings))]
[INFO] [stdout]    |                        ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(dead_code)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: field is never read: `reduced`
[INFO] [stdout]   --> src/hpack/test/fuzz.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     reduced: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: field is never read: `head`
[INFO] [stdout]   --> src/proto/streams/recv.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 82 |     head: store::Key,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: field is never read: `tail`
[INFO] [stdout]   --> src/proto/streams/recv.rs:83:5
[INFO] [stdout]    |
[INFO] [stdout] 83 |     tail: store::Key,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `h2` due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "30af3ffc0c0cf5582a32c056ebf488364921bbb8bc6e7f0788cf0a92b395749b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30af3ffc0c0cf5582a32c056ebf488364921bbb8bc6e7f0788cf0a92b395749b", kill_on_drop: false }`
[INFO] [stdout] 30af3ffc0c0cf5582a32c056ebf488364921bbb8bc6e7f0788cf0a92b395749b