[INFO] crate qrs 0.1.1 is already in cache
[INFO] checking qrs-0.1.1 against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66504-1
[INFO] extracting crate qrs 0.1.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate qrs 0.1.1 on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate qrs 0.1.1
[INFO] finished tweaking crates.io crate qrs 0.1.1
[INFO] tweaked toml for crates.io crate qrs 0.1.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4c4502bb02ceab3d209a6b81575913ae9b6bd9613563c801d3d43806d57acf1e
[INFO] running `"docker" "start" "-a" "4c4502bb02ceab3d209a6b81575913ae9b6bd9613563c801d3d43806d57acf1e"`
[INFO] [stderr]    Compiling yansi v0.3.4
[INFO] [stderr]     Checking inflate v0.1.1
[INFO] [stderr]     Checking pest v0.3.3
[INFO] [stderr]     Checking state v0.2.2
[INFO] [stderr]     Checking toml v0.2.1
[INFO] [stderr]     Checking gif v0.9.2
[INFO] [stderr]     Checking get_if_addrs v0.4.1
[INFO] [stderr]    Compiling cookie v0.6.2
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]    Compiling hyper v0.10.16
[INFO] [stderr]     Checking rayon-core v1.6.1
[INFO] [stderr]     Checking handlebars v0.25.3
[INFO] [stderr]    Compiling rocket v0.2.11
[INFO] [stderr]    Compiling rocket_codegen v0.2.11
[INFO] [stderr]     Checking rayon v1.2.1
[INFO] [stderr] error[E0432]: unresolved import `std::net::lookup_host`
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rocket-0.2.11/src/config/config.rs:2:24
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::net::{IpAddr, lookup_host};
[INFO] [stderr]   |                        ^^^^^^^^^^^ no `lookup_host` in `net`
[INFO] [stderr] 
[INFO] [stderr]     Checking png v0.6.2
[INFO] [stderr] error[E0283]: type annotations needed: cannot resolve `std::borrow::Cow<'_, str>: std::borrow::Borrow<_>`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rocket-0.2.11/src/http/header.rs:480:47
[INFO] [stderr]     |
[INFO] [stderr] 480 |                 Header::new(key.as_str(), val.borrow())
[INFO] [stderr]     |                                               ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0283, E0432.
[INFO] [stderr] For more information about an error, try `rustc --explain E0283`.
[INFO] [stderr] error: could not compile `rocket`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "4c4502bb02ceab3d209a6b81575913ae9b6bd9613563c801d3d43806d57acf1e"`
[INFO] running `"docker" "rm" "-f" "4c4502bb02ceab3d209a6b81575913ae9b6bd9613563c801d3d43806d57acf1e"`
[INFO] [stdout] 4c4502bb02ceab3d209a6b81575913ae9b6bd9613563c801d3d43806d57acf1e