[INFO] fetching crate traitcast_core 0.2.0...
[INFO] checking traitcast_core-0.2.0 against master#c9228570668803e3e6402770d55f23a12c9ae686 for pr-79472
[INFO] extracting crate traitcast_core 0.2.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate traitcast_core 0.2.0 on toolchain c9228570668803e3e6402770d55f23a12c9ae686
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate traitcast_core 0.2.0
[INFO] finished tweaking crates.io crate traitcast_core 0.2.0
[INFO] tweaked toml for crates.io crate traitcast_core 0.2.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] caeda83e070cd7388fe2abab500a9a5899f20cef1dd1c19cea97590d9ccb3aad
[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" "caeda83e070cd7388fe2abab500a9a5899f20cef1dd1c19cea97590d9ccb3aad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "caeda83e070cd7388fe2abab500a9a5899f20cef1dd1c19cea97590d9ccb3aad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "caeda83e070cd7388fe2abab500a9a5899f20cef1dd1c19cea97590d9ccb3aad", kill_on_drop: false }`
[INFO] [stdout] caeda83e070cd7388fe2abab500a9a5899f20cef1dd1c19cea97590d9ccb3aad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "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] cfe70e6b3970205a72d429ba7fb231b3fa66592af766bbe684bec31a6c17d8d5
[INFO] running `Command { std: "docker" "start" "-a" "cfe70e6b3970205a72d429ba7fb231b3fa66592af766bbe684bec31a6c17d8d5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling inventory v0.1.9
[INFO] [stderr]     Checking anymap v0.12.1
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]     Checking traitcast_core v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:140:26
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub cast_box: fn(Box<Any>) -> Result<Box<DynTrait>, Box<Any>>,
[INFO] [stdout]     |                          ^^^ help: use `dyn`: `dyn Any`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:140:61
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub cast_box: fn(Box<Any>) -> Result<Box<DynTrait>, Box<Any>>,
[INFO] [stdout]     |                                                             ^^^ help: use `dyn`: `dyn Any`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ctor v0.1.16
[INFO] [stderr]    Compiling inventory-impl v0.1.9
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:140:26
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub cast_box: fn(Box<Any>) -> Result<Box<DynTrait>, Box<Any>>,
[INFO] [stdout]     |                          ^^^ help: use `dyn`: `dyn Any`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:140:61
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub cast_box: fn(Box<Any>) -> Result<Box<DynTrait>, Box<Any>>,
[INFO] [stdout]     |                                                             ^^^ help: use `dyn`: `dyn Any`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.30s
[INFO] running `Command { std: "docker" "inspect" "cfe70e6b3970205a72d429ba7fb231b3fa66592af766bbe684bec31a6c17d8d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfe70e6b3970205a72d429ba7fb231b3fa66592af766bbe684bec31a6c17d8d5", kill_on_drop: false }`
[INFO] [stdout] cfe70e6b3970205a72d429ba7fb231b3fa66592af766bbe684bec31a6c17d8d5