[INFO] cloning repository https://github.com/dannyn/fractal
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dannyn/fractal" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdannyn%2Ffractal", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdannyn%2Ffractal'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9946d144acb822a9d2a0ba9d353a5ff9a3570a35
[INFO] checking dannyn/fractal against master#50e1dc1536264ab71c0850f346b12309477f29f7 for pr-85073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdannyn%2Ffractal" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dannyn/fractal 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/dannyn/fractal
[INFO] finished tweaking git repo https://github.com/dannyn/fractal
[INFO] tweaked toml for git repo https://github.com/dannyn/fractal written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/dannyn/fractal 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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 27a2e0eb1e95192eee1d8925c71eb27a458b2d35aebfa32f2e73ddb9ffead176
[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" "27a2e0eb1e95192eee1d8925c71eb27a458b2d35aebfa32f2e73ddb9ffead176", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27a2e0eb1e95192eee1d8925c71eb27a458b2d35aebfa32f2e73ddb9ffead176", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27a2e0eb1e95192eee1d8925c71eb27a458b2d35aebfa32f2e73ddb9ffead176", kill_on_drop: false }`
[INFO] [stdout] 27a2e0eb1e95192eee1d8925c71eb27a458b2d35aebfa32f2e73ddb9ffead176
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stdout] 568c80b26416e66594d2ae16273b8284af58973a8d4680ccf961af1c40d7d9e3
[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" "568c80b26416e66594d2ae16273b8284af58973a8d4680ccf961af1c40d7d9e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking libc v0.2.7
[INFO] [stderr]     Checking winapi v0.2.5
[INFO] [stderr]    Compiling bitflags v0.3.3
[INFO] [stderr]     Checking lazy_static v0.1.15
[INFO] [stderr]    Compiling libloading v0.2.1
[INFO] [stderr]     Checking crossbeam v0.1.6
[INFO] [stderr]    Compiling bitflags v0.4.0
[INFO] [stderr]    Compiling khronos_api v0.0.8
[INFO] [stderr]    Compiling backtrace-sys v0.1.3
[INFO] [stderr]     Checking byteorder v0.4.2
[INFO] [stderr]     Checking debug-builders v0.1.0
[INFO] [stderr]     Checking smallvec v0.1.6
[INFO] [stderr]    Compiling xml-rs v0.2.2
[INFO] [stderr]    Compiling xml-rs v0.1.26
[INFO] [stdout] error[E0512]: cannot transmute between types of different sizes, or dependently-sized types
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/crossbeam-0.1.6/src/sync/seg_queue.rs:34:29
[INFO] [stdout]    |
[INFO] [stdout] 34 |             ready: unsafe { mem::transmute([0usize; SEG_SIZE]) },
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: source type: `[usize; 32]` (2048 bits)
[INFO] [stdout]    = note: target type: `[AtomicBool; 32]` (256 bits)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0512`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `crossbeam`
[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" "568c80b26416e66594d2ae16273b8284af58973a8d4680ccf961af1c40d7d9e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "568c80b26416e66594d2ae16273b8284af58973a8d4680ccf961af1c40d7d9e3", kill_on_drop: false }`
[INFO] [stdout] 568c80b26416e66594d2ae16273b8284af58973a8d4680ccf961af1c40d7d9e3