[INFO] fetching crate cocoon 0.3.0...
[INFO] checking cocoon-0.3.0 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate cocoon 0.3.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate cocoon 0.3.0 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cocoon 0.3.0
[INFO] finished tweaking crates.io crate cocoon 0.3.0
[INFO] tweaked toml for crates.io crate cocoon 0.3.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] dab45809b2f4ed268605d4387e1ff03a4300dacee232ffd5fdf3708153ef502a
[INFO] running `Command { std: "docker" "start" "-a" "dab45809b2f4ed268605d4387e1ff03a4300dacee232ffd5fdf3708153ef502a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dab45809b2f4ed268605d4387e1ff03a4300dacee232ffd5fdf3708153ef502a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dab45809b2f4ed268605d4387e1ff03a4300dacee232ffd5fdf3708153ef502a", kill_on_drop: false }`
[INFO] [stdout] dab45809b2f4ed268605d4387e1ff03a4300dacee232ffd5fdf3708153ef502a
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 904c0d89aada492a90bd200009e7d3c7d5c41a2f987b7b724f3f3b214f7eeec2
[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" "904c0d89aada492a90bd200009e7d3c7d5c41a2f987b7b724f3f3b214f7eeec2", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]     Checking cpufeatures v0.2.1
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]     Checking ppv-lite86 v0.2.15
[INFO] [stderr]     Checking zeroize v1.4.3
[INFO] [stderr]     Checking ahash v0.4.7
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]     Checking cipher v0.3.0
[INFO] [stderr]     Checking universal-hash v0.4.1
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking aead v0.4.3
[INFO] [stderr]     Checking crypto-mac v0.11.1
[INFO] [stderr]     Checking hmac v0.11.0
[INFO] [stderr]     Checking polyval v0.5.3
[INFO] [stderr]     Checking poly1305 v0.7.2
[INFO] [stderr]     Checking sha2 v0.9.8
[INFO] [stderr]     Checking ctr v0.8.0
[INFO] [stderr]     Checking chacha20 v0.8.1
[INFO] [stderr]     Checking aes v0.7.5
[INFO] [stderr]     Checking ghash v0.4.4
[INFO] [stderr]     Checking pbkdf2 v0.9.0
[INFO] [stderr]     Checking chacha20poly1305 v0.9.0
[INFO] [stderr]     Checking aes-gcm v0.9.4
[INFO] [stderr]     Checking cocoon v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `reserved`
[INFO] [stdout]   --> src/header.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     reserved: u8,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling borsh-schema-derive-internal v0.9.1
[INFO] [stderr]    Compiling borsh-derive-internal v0.9.1
[INFO] [stderr]    Compiling borsh-derive v0.9.1
[INFO] [stderr]     Checking borsh v0.9.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.59s
[INFO] running `Command { std: "docker" "inspect" "904c0d89aada492a90bd200009e7d3c7d5c41a2f987b7b724f3f3b214f7eeec2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "904c0d89aada492a90bd200009e7d3c7d5c41a2f987b7b724f3f3b214f7eeec2", kill_on_drop: false }`
[INFO] [stdout] 904c0d89aada492a90bd200009e7d3c7d5c41a2f987b7b724f3f3b214f7eeec2