[INFO] fetching crate ocaml 0.19.0...
[INFO] checking ocaml-0.19.0 against try#9c1dcf141bc0875407c4eb36972857bd3db713e2 for pr-81863
[INFO] extracting crate ocaml 0.19.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate ocaml 0.19.0 on toolchain 9c1dcf141bc0875407c4eb36972857bd3db713e2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ocaml 0.19.0
[INFO] finished tweaking crates.io crate ocaml 0.19.0
[INFO] tweaked toml for crates.io crate ocaml 0.19.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cstr_core v0.2.2
[INFO] [stderr]   Downloaded ocaml-derive v0.19.0
[INFO] [stderr]   Downloaded ocaml-sys v0.19.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b2b3a95aca93fbcd6dbc857ec2542836e04e3eb065a34414e8d59cc5aae9fcb0
[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" "b2b3a95aca93fbcd6dbc857ec2542836e04e3eb065a34414e8d59cc5aae9fcb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b2b3a95aca93fbcd6dbc857ec2542836e04e3eb065a34414e8d59cc5aae9fcb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2b3a95aca93fbcd6dbc857ec2542836e04e3eb065a34414e8d59cc5aae9fcb0", kill_on_drop: false }`
[INFO] [stdout] b2b3a95aca93fbcd6dbc857ec2542836e04e3eb065a34414e8d59cc5aae9fcb0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf09ed2ab985447abb5807f138d20a52278d8b4f034e53dc65fc1b36897dfcd7
[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" "bf09ed2ab985447abb5807f138d20a52278d8b4f034e53dc65fc1b36897dfcd7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling ocaml-sys v0.19.0
[INFO] [stderr]     Checking cty v0.2.1
[INFO] [stdout] error: couldn't read /opt/rustwide/target/debug/build/ocaml-sys-6fdb3e6c807d3ce4/out/ocaml_version: No such file or directory (os error 2)
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ocaml-sys-0.19.0/src/lib.rs:56:27
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub const VERSION: &str = include_str!(concat!(env!("OUT_DIR"), "/ocaml_version"));
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't read /opt/rustwide/target/debug/build/ocaml-sys-6fdb3e6c807d3ce4/out/ocaml_path: No such file or directory (os error 2)
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ocaml-sys-0.19.0/src/lib.rs:59:24
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub const PATH: &str = include_str!(concat!(env!("OUT_DIR"), "/ocaml_path"));
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't read /opt/rustwide/target/debug/build/ocaml-sys-6fdb3e6c807d3ce4/out/ocaml_compiler: No such file or directory (os error 2)
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ocaml-sys-0.19.0/src/lib.rs:62:28
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub const COMPILER: &str = include_str!(concat!(env!("OUT_DIR"), "/ocaml_compiler"));
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ocaml-sys`
[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" "bf09ed2ab985447abb5807f138d20a52278d8b4f034e53dc65fc1b36897dfcd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf09ed2ab985447abb5807f138d20a52278d8b4f034e53dc65fc1b36897dfcd7", kill_on_drop: false }`
[INFO] [stdout] bf09ed2ab985447abb5807f138d20a52278d8b4f034e53dc65fc1b36897dfcd7