[INFO] fetching crate octorust 0.1.33...
[INFO] checking octorust-0.1.33 against 1.55.0 for beta-1.56-3
[INFO] extracting crate octorust 0.1.33 into /workspace/builds/worker-92/source
[INFO] validating manifest of crates.io crate octorust 0.1.33 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate octorust 0.1.33
[INFO] finished tweaking crates.io crate octorust 0.1.33
[INFO] tweaked toml for crates.io crate octorust 0.1.33 written to /workspace/builds/worker-92/source/Cargo.toml
[INFO] crate crates.io crate octorust 0.1.33 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f12956a6ad02f9be9c3c955a2f99e9a538bf848bd2953fbe345b7ea7404f5fd
[INFO] running `Command { std: "docker" "start" "-a" "6f12956a6ad02f9be9c3c955a2f99e9a538bf848bd2953fbe345b7ea7404f5fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f12956a6ad02f9be9c3c955a2f99e9a538bf848bd2953fbe345b7ea7404f5fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f12956a6ad02f9be9c3c955a2f99e9a538bf848bd2953fbe345b7ea7404f5fd", kill_on_drop: false }`
[INFO] [stdout] 6f12956a6ad02f9be9c3c955a2f99e9a538bf848bd2953fbe345b7ea7404f5fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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=warn" "-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" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 50c979e00da36ef33fdfc87da24e4a62ee4fdb36cf2a3a668bc88cc307a32eab
[INFO] running `Command { std: "docker" "start" "-a" "50c979e00da36ef33fdfc87da24e4a62ee4fdb36cf2a3a668bc88cc307a32eab", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling openssl v0.10.36
[INFO] [stderr]    Compiling httparse v1.3.6
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]     Checking futures-sink v0.3.17
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]     Checking httpdate v0.3.2
[INFO] [stderr]     Checking openssl-probe v0.1.4
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking unicode-bidi v0.3.6
[INFO] [stderr]     Checking slab v0.4.4
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling hyperx v1.2.0
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]    Compiling anyhow v1.0.44
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]    Compiling schemars v0.8.3
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking dyn-clone v1.0.4
[INFO] [stderr]     Checking ipnet v2.3.1
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]    Compiling tokio v1.11.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]     Checking tinyvec v1.4.0
[INFO] [stderr]     Checking tracing-core v0.1.20
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking tracing v0.1.27
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]    Compiling openssl-sys v0.9.66
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking pem v0.8.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking socket2 v0.4.1
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking dirs v3.0.2
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking nom_pem v4.0.0
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking http-body v0.4.3
[INFO] [stderr]    Compiling serde_derive_internals v0.25.0
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.8
[INFO] [stderr]    Compiling schemars_derive v0.8.3
[INFO] [stderr]    Compiling async-recursion v0.3.2
[INFO] [stderr]     Checking pin-project v1.0.8
[INFO] [stderr]     Checking serde v1.0.130
[INFO] [stderr]     Checking tokio-util v0.6.8
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking h2 v0.3.4
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking hyper v0.14.5
[INFO] [stderr]     Checking simple_asn1 v0.4.1
[INFO] [stderr]     Checking jsonwebtoken v7.2.0
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.4
[INFO] [stderr]     Checking octorust v0.1.33 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `octorust`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name octorust --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 -C metadata=fdba931145dcecc6 -C extra-filename=-fdba931145dcecc6 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-f5542af8cd8710a7.rmeta --extern async_recursion=/opt/rustwide/target/debug/deps/libasync_recursion-0ccef8699f643cde.so --extern chrono=/opt/rustwide/target/debug/deps/libchrono-8742c14939bd15cb.rmeta --extern http=/opt/rustwide/target/debug/deps/libhttp-d630ef8af790096a.rmeta --extern hyperx=/opt/rustwide/target/debug/deps/libhyperx-a0bb6f9beba1f250.rmeta --extern jsonwebtoken=/opt/rustwide/target/debug/deps/libjsonwebtoken-d214802e9c632af0.rmeta --extern mime=/opt/rustwide/target/debug/deps/libmime-4cb3ad9d9d0b2124.rmeta --extern percent_encoding=/opt/rustwide/target/debug/deps/libpercent_encoding-87730451b3ab7ce8.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-bc41b864c469929a.rmeta --extern schemars=/opt/rustwide/target/debug/deps/libschemars-492ae809223b839b.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-51809285bbde454f.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-6d5f459ae3300643.rmeta --extern serde_urlencoded=/opt/rustwide/target/debug/deps/libserde_urlencoded-5d74223e24b1101c.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-6ba393eba01f772b.rmeta --cap-lints=warn -L native=/opt/rustwide/target/debug/build/ring-01772ecd78e7966b/out` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:167:1
[INFO] [stdout]     |
[INFO] [stdout] 167 | #![feature(async_stream)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "50c979e00da36ef33fdfc87da24e4a62ee4fdb36cf2a3a668bc88cc307a32eab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50c979e00da36ef33fdfc87da24e4a62ee4fdb36cf2a3a668bc88cc307a32eab", kill_on_drop: false }`
[INFO] [stdout] 50c979e00da36ef33fdfc87da24e4a62ee4fdb36cf2a3a668bc88cc307a32eab
