[INFO] fetching crate alexa-verifier 0.2.1...
[INFO] checking alexa-verifier-0.2.1 against master#c5fbcd35a8217a17f6b63a22217ace06cf8f5f02 for pr-86194
[INFO] extracting crate alexa-verifier 0.2.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate alexa-verifier 0.2.1 on toolchain c5fbcd35a8217a17f6b63a22217ace06cf8f5f02
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate alexa-verifier 0.2.1
[INFO] finished tweaking crates.io crate alexa-verifier 0.2.1
[INFO] tweaked toml for crates.io crate alexa-verifier 0.2.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "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" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c907edb82263d9b6be26fd06efbae7ae775bdfbe4a52e57bd1b423de6e79a213
[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" "c907edb82263d9b6be26fd06efbae7ae775bdfbe4a52e57bd1b423de6e79a213", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c907edb82263d9b6be26fd06efbae7ae775bdfbe4a52e57bd1b423de6e79a213", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c907edb82263d9b6be26fd06efbae7ae775bdfbe4a52e57bd1b423de6e79a213", kill_on_drop: false }`
[INFO] [stdout] c907edb82263d9b6be26fd06efbae7ae775bdfbe4a52e57bd1b423de6e79a213
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c15a403ded434a7e6fe4ee34a7a371794de3d57c764b1c1679f1f095c982e9f2
[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" "c15a403ded434a7e6fe4ee34a7a371794de3d57c764b1c1679f1f095c982e9f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]     Checking ipnet v2.3.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]    Compiling openssl v0.10.34
[INFO] [stderr]     Checking openssl-sys v0.9.63
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking backtrace v0.3.60
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking rusticata-macros v1.1.0
[INFO] [stderr]     Checking der-parser v2.1.0
[INFO] [stderr]     Checking x509-parser v0.5.1
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking pin-project v1.0.7
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking hyper v0.13.10
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking reqwest v0.10.10
[INFO] [stderr]     Checking alexa-verifier v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 02s
[INFO] running `Command { std: "docker" "inspect" "c15a403ded434a7e6fe4ee34a7a371794de3d57c764b1c1679f1f095c982e9f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c15a403ded434a7e6fe4ee34a7a371794de3d57c764b1c1679f1f095c982e9f2", kill_on_drop: false }`
[INFO] [stdout] c15a403ded434a7e6fe4ee34a7a371794de3d57c764b1c1679f1f095c982e9f2