[INFO] fetching crate jobpool 0.3.8...
[INFO] checking jobpool-0.3.8 against try#b20a093d9fb1ffaa04ae9852cb034864a992bafd for pr-85073
[INFO] extracting crate jobpool 0.3.8 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate jobpool 0.3.8 on toolchain b20a093d9fb1ffaa04ae9852cb034864a992bafd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jobpool 0.3.8
[INFO] finished tweaking crates.io crate jobpool 0.3.8
[INFO] tweaked toml for crates.io crate jobpool 0.3.8 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9ff3b946ff4a7f4a67326385da743566d048689b1ca366ae01f243057b504414
[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" "9ff3b946ff4a7f4a67326385da743566d048689b1ca366ae01f243057b504414", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ff3b946ff4a7f4a67326385da743566d048689b1ca366ae01f243057b504414", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ff3b946ff4a7f4a67326385da743566d048689b1ca366ae01f243057b504414", kill_on_drop: false }`
[INFO] [stdout] 9ff3b946ff4a7f4a67326385da743566d048689b1ca366ae01f243057b504414
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "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] 8cc2cc37bb1d5a4aa16836fdee7135d8ee9a73e1b5ce2ef96fcb57813ba659c3
[INFO] running `Command { std: "docker" "start" "-a" "8cc2cc37bb1d5a4aa16836fdee7135d8ee9a73e1b5ce2ef96fcb57813ba659c3", kill_on_drop: false }`
[INFO] [stderr]     Checking jobpool v0.3.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/jobpool.rs:9:26
[INFO] [stdout]   |
[INFO] [stdout] 9 | type BoxedRunnable = Box<Runnable + Send + 'static>;
[INFO] [stdout]   |                          ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Runnable + Send + 'static`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/jobpool.rs:9:26
[INFO] [stdout]   |
[INFO] [stdout] 9 | type BoxedRunnable = Box<Runnable + Send + 'static>;
[INFO] [stdout]   |                          ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Runnable + Send + 'static`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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 0.84s
[INFO] running `Command { std: "docker" "inspect" "8cc2cc37bb1d5a4aa16836fdee7135d8ee9a73e1b5ce2ef96fcb57813ba659c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cc2cc37bb1d5a4aa16836fdee7135d8ee9a73e1b5ce2ef96fcb57813ba659c3", kill_on_drop: false }`
[INFO] [stdout] 8cc2cc37bb1d5a4aa16836fdee7135d8ee9a73e1b5ce2ef96fcb57813ba659c3