[INFO] fetching crate eznet 0.2.0...
[INFO] checking eznet-0.2.0 against master#16b569057e4d1591b4bee05f10df34000308dedc for pr-127827
[INFO] extracting crate eznet 0.2.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate eznet 0.2.0 on toolchain 16b569057e4d1591b4bee05f10df34000308dedc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+16b569057e4d1591b4bee05f10df34000308dedc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate eznet 0.2.0
[INFO] finished tweaking crates.io crate eznet 0.2.0
[INFO] tweaked toml for crates.io crate eznet 0.2.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate eznet 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+16b569057e4d1591b4bee05f10df34000308dedc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures v0.3.19
[INFO] [stderr]   Downloaded rcgen v0.9.0
[INFO] [stderr]   Downloaded futures-util v0.3.19
[INFO] [stderr]   Downloaded futures-macro v0.3.19
[INFO] [stderr]   Downloaded serde_derive v1.0.138
[INFO] [stderr]   Downloaded security-framework v2.5.0
[INFO] [stderr]   Downloaded futures-core v0.3.19
[INFO] [stderr]   Downloaded yasna v0.5.0
[INFO] [stderr]   Downloaded futures-executor v0.3.19
[INFO] [stderr]   Downloaded futures-task v0.3.19
[INFO] [stderr]   Downloaded serde v1.0.138
[INFO] [stderr]   Downloaded futures-channel v0.3.19
[INFO] [stderr]   Downloaded tracing-attributes v0.1.18
[INFO] [stderr]   Downloaded rustls-native-certs v0.6.1
[INFO] [stderr]   Downloaded quinn v0.8.3
[INFO] [stderr]   Downloaded tokio v1.19.2
[INFO] [stderr]   Downloaded quinn-udp v0.1.0
[INFO] [stderr]   Downloaded pem v1.0.2
[INFO] [stderr]   Downloaded security-framework-sys v2.5.0
[INFO] [stderr]   Downloaded rustls v0.20.6
[INFO] [stderr]   Downloaded futures-sink v0.3.19
[INFO] [stderr]   Downloaded quinn-proto v0.8.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+16b569057e4d1591b4bee05f10df34000308dedc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3fe109d8d515fff629b8027e5f95e95e265364f519979200e94f38c1d0a27e30
[INFO] running `Command { std: "docker" "start" "-a" "3fe109d8d515fff629b8027e5f95e95e265364f519979200e94f38c1d0a27e30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3fe109d8d515fff629b8027e5f95e95e265364f519979200e94f38c1d0a27e30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fe109d8d515fff629b8027e5f95e95e265364f519979200e94f38c1d0a27e30", kill_on_drop: false }`
[INFO] [stdout] 3fe109d8d515fff629b8027e5f95e95e265364f519979200e94f38c1d0a27e30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+16b569057e4d1591b4bee05f10df34000308dedc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 433b570de1430592b462db338a1795d9747b8c6539082b5fb630079f39372240
[INFO] running `Command { std: "docker" "start" "-a" "433b570de1430592b462db338a1795d9747b8c6539082b5fb630079f39372240", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]    Compiling serde_derive v1.0.138
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]    Compiling futures-core v0.3.19
[INFO] [stderr]    Compiling serde v1.0.138
[INFO] [stderr]    Compiling futures-channel v0.3.19
[INFO] [stderr]     Checking futures-sink v0.3.19
[INFO] [stderr]    Compiling futures-task v0.3.19
[INFO] [stderr]    Compiling futures-util v0.3.19
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]     Checking tracing-core v0.1.21
[INFO] [stderr]    Compiling rustls v0.20.6
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking rustls-pemfile v0.2.1
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking rustls-native-certs v0.6.1
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking num_threads v0.1.3
[INFO] [stderr]     Checking getrandom v0.2.4
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]     Checking time v0.3.7
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking pem v1.0.2
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking yasna v0.5.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]     Checking webpki v0.22.0
[INFO] [stderr]     Checking rcgen v0.9.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.18
[INFO] [stderr]    Compiling futures-macro v0.3.19
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]     Checking tokio v1.19.2
[INFO] [stderr]     Checking tracing v0.1.29
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking futures-executor v0.3.19
[INFO] [stderr]     Checking futures v0.3.19
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking quinn-proto v0.8.3
[INFO] [stderr]     Checking tokio-util v0.7.3
[INFO] [stderr]     Checking quinn-udp v0.1.0
[INFO] [stderr]     Checking quinn v0.8.3
[INFO] [stderr]     Checking eznet v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.23s
[INFO] running `Command { std: "docker" "inspect" "433b570de1430592b462db338a1795d9747b8c6539082b5fb630079f39372240", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "433b570de1430592b462db338a1795d9747b8c6539082b5fb630079f39372240", kill_on_drop: false }`
[INFO] [stdout] 433b570de1430592b462db338a1795d9747b8c6539082b5fb630079f39372240
[INFO] checking eznet-0.2.0 against try#8a6640bd72b80869b16392026cb3aa8ce8e3f9b7 for pr-127827
[INFO] extracting crate eznet 0.2.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate eznet 0.2.0 on toolchain 8a6640bd72b80869b16392026cb3aa8ce8e3f9b7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a6640bd72b80869b16392026cb3aa8ce8e3f9b7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate eznet 0.2.0
[INFO] finished tweaking crates.io crate eznet 0.2.0
[INFO] tweaked toml for crates.io crate eznet 0.2.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate crates.io crate eznet 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a6640bd72b80869b16392026cb3aa8ce8e3f9b7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+8a6640bd72b80869b16392026cb3aa8ce8e3f9b7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 87ede8abc9b490afeb2d61532fe2f5eaf2ba96dd2b2d471bcbf396da8ae3137f
[INFO] running `Command { std: "docker" "start" "-a" "87ede8abc9b490afeb2d61532fe2f5eaf2ba96dd2b2d471bcbf396da8ae3137f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87ede8abc9b490afeb2d61532fe2f5eaf2ba96dd2b2d471bcbf396da8ae3137f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87ede8abc9b490afeb2d61532fe2f5eaf2ba96dd2b2d471bcbf396da8ae3137f", kill_on_drop: false }`
[INFO] [stdout] 87ede8abc9b490afeb2d61532fe2f5eaf2ba96dd2b2d471bcbf396da8ae3137f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+8a6640bd72b80869b16392026cb3aa8ce8e3f9b7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d43373e28bb9eec449d8fed96d3080b73c812f90b191b1cdc3b53000bcd6abfc
[INFO] running `Command { std: "docker" "start" "-a" "d43373e28bb9eec449d8fed96d3080b73c812f90b191b1cdc3b53000bcd6abfc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]    Compiling serde_derive v1.0.138
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]    Compiling futures-core v0.3.19
[INFO] [stderr]    Compiling serde v1.0.138
[INFO] [stderr]    Compiling futures-task v0.3.19
[INFO] [stderr]    Compiling futures-channel v0.3.19
[INFO] [stderr]     Checking futures-sink v0.3.19
[INFO] [stderr]    Compiling futures-util v0.3.19
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]     Checking tracing-core v0.1.21
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling rustls v0.20.6
[INFO] [stderr]     Checking rustls-pemfile v0.2.1
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking rustls-native-certs v0.6.1
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stderr]     Checking getrandom v0.2.4
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking num_threads v0.1.3
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking time v0.3.7
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking pem v1.0.2
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking yasna v0.5.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking webpki v0.22.0
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]     Checking rcgen v0.9.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.18
[INFO] [stderr]    Compiling futures-macro v0.3.19
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]     Checking tokio v1.19.2
[INFO] [stderr]     Checking tracing v0.1.29
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking futures-executor v0.3.19
[INFO] [stderr]     Checking futures v0.3.19
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking quinn-proto v0.8.3
[INFO] [stderr]     Checking tokio-util v0.7.3
[INFO] [stderr]     Checking quinn-udp v0.1.0
[INFO] [stderr]     Checking quinn v0.8.3
[INFO] [stderr]     Checking eznet v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/writer.rs:170:20
[INFO] [stdout]     |
[INFO] [stdout] 170 |         unwrap_or!(stream.flush().await, return);
[INFO] [stdout]     |                    ^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/writer.rs:170:20
[INFO] [stdout]     |
[INFO] [stdout] 170 |         unwrap_or!(stream.flush().await, return);
[INFO] [stdout]     |                    ^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `eznet` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `eznet` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "d43373e28bb9eec449d8fed96d3080b73c812f90b191b1cdc3b53000bcd6abfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d43373e28bb9eec449d8fed96d3080b73c812f90b191b1cdc3b53000bcd6abfc", kill_on_drop: false }`
[INFO] [stdout] d43373e28bb9eec449d8fed96d3080b73c812f90b191b1cdc3b53000bcd6abfc