[INFO] cloning repository https://github.com/CodeHipster/rustacean-fiddling
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CodeHipster/rustacean-fiddling" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCodeHipster%2Frustacean-fiddling", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCodeHipster%2Frustacean-fiddling'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 267017b3f9f1ca812181a648da499ed0245fe394
[INFO] checking CodeHipster/rustacean-fiddling against beta-2020-07-24 for pr-75494-beta
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCodeHipster%2Frustacean-fiddling" "/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/CodeHipster/rustacean-fiddling on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CodeHipster/rustacean-fiddling
[INFO] finished tweaking git repo https://github.com/CodeHipster/rustacean-fiddling
[INFO] tweaked toml for git repo https://github.com/CodeHipster/rustacean-fiddling written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/CodeHipster/rustacean-fiddling already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", 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] ac53652e35d117ba9bb6c0ce0d39b370c93f19266d955ec47c9eac90f8b6be8b
[INFO] running `Command { std: "docker" "start" "-a" "ac53652e35d117ba9bb6c0ce0d39b370c93f19266d955ec47c9eac90f8b6be8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac53652e35d117ba9bb6c0ce0d39b370c93f19266d955ec47c9eac90f8b6be8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac53652e35d117ba9bb6c0ce0d39b370c93f19266d955ec47c9eac90f8b6be8b", kill_on_drop: false }`
[INFO] [stdout] ac53652e35d117ba9bb6c0ce0d39b370c93f19266d955ec47c9eac90f8b6be8b
[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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "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] d9196959b5923e1d12af547698a709df33415564bcc9ca7539136da4ac6d5519
[INFO] running `Command { std: "docker" "start" "-a" "d9196959b5923e1d12af547698a709df33415564bcc9ca7539136da4ac6d5519", kill_on_drop: false }`
[INFO] [stderr]     Checking trait-object v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/world/world.rs:12:24
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub items: Vec<Box<Item>>
[INFO] [stdout]    |                        ^^^^ help: use `dyn`: `dyn Item`
[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/world/world.rs:12:24
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub items: Vec<Box<Item>>
[INFO] [stdout]    |                        ^^^^ help: use `dyn`: `dyn Item`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "d9196959b5923e1d12af547698a709df33415564bcc9ca7539136da4ac6d5519", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9196959b5923e1d12af547698a709df33415564bcc9ca7539136da4ac6d5519", kill_on_drop: false }`
[INFO] [stdout] d9196959b5923e1d12af547698a709df33415564bcc9ca7539136da4ac6d5519
