[INFO] fetching crate rhai 0.19.15...
[INFO] checking rhai-0.19.15 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] extracting crate rhai 0.19.15 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate rhai 0.19.15 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rhai 0.19.15
[INFO] finished tweaking crates.io crate rhai 0.19.15
[INFO] tweaked toml for crates.io crate rhai 0.19.15 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate rhai 0.19.15 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rhai_codegen v0.3.4
[INFO] [stderr]   Downloaded core-error v0.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e642424fc467b481b6b8fa0174b77008691ba7533962c3a717e3100344fe2ac9
[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" "e642424fc467b481b6b8fa0174b77008691ba7533962c3a717e3100344fe2ac9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e642424fc467b481b6b8fa0174b77008691ba7533962c3a717e3100344fe2ac9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e642424fc467b481b6b8fa0174b77008691ba7533962c3a717e3100344fe2ac9", kill_on_drop: false }`
[INFO] [stdout] e642424fc467b481b6b8fa0174b77008691ba7533962c3a717e3100344fe2ac9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "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] 1f413f9f20a1b7b864ecf421a3e36b94f123345fa319fc9d3da4705041956eab
[INFO] running `Command { std: "docker" "start" "-a" "1f413f9f20a1b7b864ecf421a3e36b94f123345fa319fc9d3da4705041956eab", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling libc v0.2.92
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling syn v1.0.67
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking smartstring v0.2.6
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling ahash v0.7.2
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling rhai_codegen v0.3.4
[INFO] [stderr]     Checking rhai v0.19.15 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `rhai::engine_api::<impl rhai::Engine>::register_raw_fn`: this function is volatile and may change
[INFO] [stdout]   --> tests/native.rs:18:10
[INFO] [stdout]    |
[INFO] [stdout] 18 |         .register_raw_fn(
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `rhai::engine_api::<impl rhai::Engine>::register_raw_fn`: this function is volatile and may change
[INFO] [stdout]   --> tests/native.rs:23:10
[INFO] [stdout]    |
[INFO] [stdout] 23 |         .register_raw_fn(
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Foo`
[INFO] [stdout]   --> tests/switch.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |         Foo,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Bar`
[INFO] [stdout]   --> tests/switch.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |         Bar(INT),
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 09s
[INFO] running `Command { std: "docker" "inspect" "1f413f9f20a1b7b864ecf421a3e36b94f123345fa319fc9d3da4705041956eab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f413f9f20a1b7b864ecf421a3e36b94f123345fa319fc9d3da4705041956eab", kill_on_drop: false }`
[INFO] [stdout] 1f413f9f20a1b7b864ecf421a3e36b94f123345fa319fc9d3da4705041956eab