[INFO] cloning repository https://github.com/kennethlove/temperature_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kennethlove/temperature_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkennethlove%2Ftemperature_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkennethlove%2Ftemperature_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 23f7124498c11e528c3c67a19c44233237eb90d9
[INFO] checking kennethlove/temperature_rust against master#50e1dc1536264ab71c0850f346b12309477f29f7 for pr-85073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkennethlove%2Ftemperature_rust" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kennethlove/temperature_rust on toolchain 50e1dc1536264ab71c0850f346b12309477f29f7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kennethlove/temperature_rust
[INFO] finished tweaking git repo https://github.com/kennethlove/temperature_rust
[INFO] tweaked toml for git repo https://github.com/kennethlove/temperature_rust written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/kennethlove/temperature_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "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-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" "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" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bf6a5b61dba81de0e88ba3a257d7d7b162396be2cd2894e0159c57b1ae8367bc
[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" "bf6a5b61dba81de0e88ba3a257d7d7b162396be2cd2894e0159c57b1ae8367bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf6a5b61dba81de0e88ba3a257d7d7b162396be2cd2894e0159c57b1ae8367bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf6a5b61dba81de0e88ba3a257d7d7b162396be2cd2894e0159c57b1ae8367bc", kill_on_drop: false }`
[INFO] [stdout] bf6a5b61dba81de0e88ba3a257d7d7b162396be2cd2894e0159c57b1ae8367bc
[INFO] running `Command { std: "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" "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" "+50e1dc1536264ab71c0850f346b12309477f29f7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 77af9f20f8da745b1c134b3cc727a9173ad9cef0b589744823ff0eaa57a1319e
[INFO] running `Command { std: "docker" "start" "-a" "77af9f20f8da745b1c134b3cc727a9173ad9cef0b589744823ff0eaa57a1319e", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling gcc v0.3.45
[INFO] [stderr]     Checking libc v0.2.22
[INFO] [stderr]    Compiling openssl v0.9.11
[INFO] [stderr]     Checking log v0.3.7
[INFO] [stderr]     Checking num-traits v0.1.37
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking httparse v1.2.2
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]     Checking antidote v1.0.0
[INFO] [stderr]     Checking serde v1.0.2
[INFO] [stderr]     Checking unicode-bidi v0.2.5
[INFO] [stderr]     Checking libflate v0.1.5
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stdout] error[E0214]: parenthesized type parameters may only be used with a `Fn` trait
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libflate-0.1.5/src/gzip.rs:452:66
[INFO] [stdout]     |
[INFO] [stdout] 452 |         try!(writer.write_u16::<LittleEndian>(self.data.len() as u16()));
[INFO] [stdout]     |                                                                  ^^^^^ only `Fn` traits may use parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]     Checking mime v0.2.3
[INFO] [stderr]     Checking idna v0.1.1
[INFO] [stderr]     Checking num_cpus v1.4.0
[INFO] [stderr]     Checking time v0.1.37
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0214`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libflate`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "77af9f20f8da745b1c134b3cc727a9173ad9cef0b589744823ff0eaa57a1319e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77af9f20f8da745b1c134b3cc727a9173ad9cef0b589744823ff0eaa57a1319e", kill_on_drop: false }`
[INFO] [stdout] 77af9f20f8da745b1c134b3cc727a9173ad9cef0b589744823ff0eaa57a1319e