[INFO] fetching crate web30 0.13.0...
[INFO] checking web30-0.13.0 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] extracting crate web30 0.13.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate web30 0.13.0 on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate web30 0.13.0
[INFO] finished tweaking crates.io crate web30 0.13.0
[INFO] tweaked toml for crates.io crate web30 0.13.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-macros v1.1.0
[INFO] [stderr]   Downloaded num-derive v0.3.3
[INFO] [stderr]   Downloaded futures-macro v0.3.14
[INFO] [stderr]   Downloaded serde-rlp v0.1.4
[INFO] [stderr]   Downloaded actix-macros v0.2.0
[INFO] [stderr]   Downloaded tokio-openssl v0.6.1
[INFO] [stderr]   Downloaded actix_derive v0.6.0
[INFO] [stderr]   Downloaded actix-codec v0.4.0
[INFO] [stderr]   Downloaded h2 v0.3.3
[INFO] [stderr]   Downloaded tokio v1.5.0
[INFO] [stderr]   Downloaded actix v0.11.1
[INFO] [stderr]   Downloaded paste v1.0.5
[INFO] [stderr]   Downloaded secp256k1-sys v0.4.0
[INFO] [stderr]   Downloaded num256 v0.3.1
[INFO] [stderr]   Downloaded actix-tls v3.0.0-beta.5
[INFO] [stderr]   Downloaded actix-utils v3.0.0
[INFO] [stderr]   Downloaded ahash v0.7.2
[INFO] [stderr]   Downloaded tokio-util v0.6.6
[INFO] [stderr]   Downloaded local-waker v0.1.1
[INFO] [stderr]   Downloaded local-channel v0.1.2
[INFO] [stderr]   Downloaded const_fn v0.4.7
[INFO] [stderr]   Downloaded standback v0.2.17
[INFO] [stderr]   Downloaded time v0.2.26
[INFO] [stderr]   Downloaded actix-http v3.0.0-beta.6
[INFO] [stderr]   Downloaded awc v3.0.0-beta.5
[INFO] [stderr]   Downloaded actix-rt v2.2.0
[INFO] [stderr]   Downloaded actix-service v2.0.0
[INFO] [stderr]   Downloaded convert_case v0.4.0
[INFO] [stderr]   Downloaded derive_more v0.99.13
[INFO] [stderr]   Downloaded secp256k1 v0.20.2
[INFO] [stderr]   Downloaded error v0.1.9
[INFO] [stderr]   Downloaded num-bigint v0.4.0
[INFO] [stderr]   Downloaded clarity v0.4.7
[INFO] [stderr]   Downloaded futures-executor v0.3.14
[INFO] [stderr]   Downloaded num-complex v0.4.0
[INFO] [stderr]   Downloaded num-rational v0.4.0
[INFO] [stderr]   Downloaded num v0.4.0
[INFO] [stderr]   Downloaded miow v0.3.7
[INFO] [stderr]   Downloaded mio v0.7.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 79d11619d9e939e6e1f9d53aef72f7d5fc2ea9995019b319ced42707199a4781
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "79d11619d9e939e6e1f9d53aef72f7d5fc2ea9995019b319ced42707199a4781", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79d11619d9e939e6e1f9d53aef72f7d5fc2ea9995019b319ced42707199a4781", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79d11619d9e939e6e1f9d53aef72f7d5fc2ea9995019b319ced42707199a4781", kill_on_drop: false }`
[INFO] [stdout] 79d11619d9e939e6e1f9d53aef72f7d5fc2ea9995019b319ced42707199a4781
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fd09762d1ed7bc3a3437af69207f69fc14a8efb39a71902bdf2a5df05380005a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fd09762d1ed7bc3a3437af69207f69fc14a8efb39a71902bdf2a5df05380005a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling openssl v0.10.34
[INFO] [stderr]     Checking local-waker v0.1.1
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling encoding_rs v0.8.28
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling tokio v1.5.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.4
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]    Compiling secp256k1-sys v0.4.0
[INFO] [stderr]    Compiling time v0.2.26
[INFO] [stderr]    Compiling ahash v0.7.2
[INFO] [stderr]    Compiling openssl-sys v0.9.63
[INFO] [stderr]     Checking bytestring v1.0.0
[INFO] [stderr]    Compiling const_fn v0.4.7
[INFO] [stderr]     Checking actix-service v2.0.0
[INFO] [stderr]     Checking error v0.1.9
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking actix-utils v3.0.0
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking crc32fast v1.2.1
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking sha-1 v0.9.5
[INFO] [stderr]     Checking sha3 v0.9.1
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking secp256k1 v0.20.2
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking env_logger v0.8.3
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking serde-rlp v0.1.4
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking brotli2 v0.3.2
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling actix-macros v0.2.0
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling derive_more v0.99.13
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling actix_derive v0.6.0
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking pin-project v1.0.7
[INFO] [stderr]     Checking futures-executor v0.3.14
[INFO] [stderr]     Checking local-channel v0.1.2
[INFO] [stderr]     Checking tokio-util v0.6.6
[INFO] [stderr]     Checking actix-rt v2.2.0
[INFO] [stderr]     Checking futures v0.3.14
[INFO] [stderr]     Checking tokio-openssl v0.6.1
[INFO] [stderr]     Checking actix-codec v0.4.0
[INFO] [stderr]     Checking h2 v0.3.3
[INFO] [stderr]     Checking actix v0.11.1
[INFO] [stderr]     Checking num256 v0.3.1
[INFO] [stderr]     Checking actix-tls v3.0.0-beta.5
[INFO] [stderr]     Checking clarity v0.4.7
[INFO] [stderr]     Checking actix-http v3.0.0-beta.6
[INFO] [stderr]     Checking awc v3.0.0-beta.5
[INFO] [stderr]     Checking web30 v0.13.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 28s
[INFO] running `Command { std: "docker" "inspect" "fd09762d1ed7bc3a3437af69207f69fc14a8efb39a71902bdf2a5df05380005a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd09762d1ed7bc3a3437af69207f69fc14a8efb39a71902bdf2a5df05380005a", kill_on_drop: false }`
[INFO] [stdout] fd09762d1ed7bc3a3437af69207f69fc14a8efb39a71902bdf2a5df05380005a