[INFO] fetching crate drogue-ffi-compat 0.1.0...
[INFO] checking drogue-ffi-compat-0.1.0 against try#b20a093d9fb1ffaa04ae9852cb034864a992bafd for pr-85073
[INFO] extracting crate drogue-ffi-compat 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate drogue-ffi-compat 0.1.0 on toolchain b20a093d9fb1ffaa04ae9852cb034864a992bafd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate drogue-ffi-compat 0.1.0
[INFO] finished tweaking crates.io crate drogue-ffi-compat 0.1.0
[INFO] tweaked toml for crates.io crate drogue-ffi-compat 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "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" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4776f4da6fb1ba2d1e6bb6b6e630e87fba400bfea03a8549e8342f0c81cd885a
[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" "4776f4da6fb1ba2d1e6bb6b6e630e87fba400bfea03a8549e8342f0c81cd885a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4776f4da6fb1ba2d1e6bb6b6e630e87fba400bfea03a8549e8342f0c81cd885a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4776f4da6fb1ba2d1e6bb6b6e630e87fba400bfea03a8549e8342f0c81cd885a", kill_on_drop: false }`
[INFO] [stdout] 4776f4da6fb1ba2d1e6bb6b6e630e87fba400bfea03a8549e8342f0c81cd885a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c178d36a47dac993fe03dd41fe405ad1cc0365a68d13b4bcf5e6cc7a191ac1c
[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" "2c178d36a47dac993fe03dd41fe405ad1cc0365a68d13b4bcf5e6cc7a191ac1c", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling heapless v0.5.6
[INFO] [stderr]     Checking hash32 v0.1.1
[INFO] [stderr]     Checking generic-array v0.13.3
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling drogue-ffi-compat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking as-slice v0.1.5
[INFO] [stdout] warning: unused import: `Chunk`
[INFO] [stdout]    --> src/printf/format.rs:302:58
[INFO] [stdout]     |
[INFO] [stdout] 302 |     use super::{FormatString, FormatSpec, DecimalFormat, Chunk};
[INFO] [stdout]     |                                                          ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::ffi::c_void`
[INFO] [stdout]    --> src/printf/format.rs:303:9
[INFO] [stdout]     |
[INFO] [stdout] 303 |     use core::ffi::c_void;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::printf::format::FormatOutput`
[INFO] [stdout]    --> src/printf/format.rs:304:9
[INFO] [stdout]     |
[INFO] [stdout] 304 |     use crate::printf::format::FormatOutput;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::prelude::*`
[INFO] [stdout]    --> src/printf/format.rs:306:9
[INFO] [stdout]     |
[INFO] [stdout] 306 |     use core::prelude::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.44s
[INFO] running `Command { std: "docker" "inspect" "2c178d36a47dac993fe03dd41fe405ad1cc0365a68d13b4bcf5e6cc7a191ac1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c178d36a47dac993fe03dd41fe405ad1cc0365a68d13b4bcf5e6cc7a191ac1c", kill_on_drop: false }`
[INFO] [stdout] 2c178d36a47dac993fe03dd41fe405ad1cc0365a68d13b4bcf5e6cc7a191ac1c