[INFO] fetching crate nursery 0.0.1...
[INFO] checking nursery-0.0.1 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] extracting crate nursery 0.0.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate nursery 0.0.1 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 nursery 0.0.1
[INFO] finished tweaking crates.io crate nursery 0.0.1
[INFO] tweaked toml for crates.io crate nursery 0.0.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 4a6bc10637ce7041ce5b36032c2c853d144fd3af3fa77d7bce5e039deea17e3a
[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" "4a6bc10637ce7041ce5b36032c2c853d144fd3af3fa77d7bce5e039deea17e3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a6bc10637ce7041ce5b36032c2c853d144fd3af3fa77d7bce5e039deea17e3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a6bc10637ce7041ce5b36032c2c853d144fd3af3fa77d7bce5e039deea17e3a", kill_on_drop: false }`
[INFO] [stdout] 4a6bc10637ce7041ce5b36032c2c853d144fd3af3fa77d7bce5e039deea17e3a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] cffcdc91de34da43c2392a1fb897a1df22c07892cff0ebd334c0159a99e06c82
[INFO] running `Command { std: "docker" "start" "-a" "cffcdc91de34da43c2392a1fb897a1df22c07892cff0ebd334c0159a99e06c82", kill_on_drop: false }`
[INFO] [stderr]     Checking nursery v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/thread.rs:87:29
[INFO] [stdout]    |
[INFO] [stdout] 87 |     err_handler: Option<Box<FnMut() -> () + 'a>>,
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> () + 'a`
[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:109:43
[INFO] [stdout]     |
[INFO] [stdout] 109 |     pub fn schedule(&mut self, mut h: Box<Schedulable>) {
[INFO] [stdout]     |                                           ^^^^^^^^^^^ help: use `dyn`: `dyn Schedulable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/thread.rs:87:29
[INFO] [stdout]    |
[INFO] [stdout] 87 |     err_handler: Option<Box<FnMut() -> () + 'a>>,
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> () + 'a`
[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:109:43
[INFO] [stdout]     |
[INFO] [stdout] 109 |     pub fn schedule(&mut self, mut h: Box<Schedulable>) {
[INFO] [stdout]     |                                           ^^^^^^^^^^^ help: use `dyn`: `dyn Schedulable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "cffcdc91de34da43c2392a1fb897a1df22c07892cff0ebd334c0159a99e06c82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cffcdc91de34da43c2392a1fb897a1df22c07892cff0ebd334c0159a99e06c82", kill_on_drop: false }`
[INFO] [stdout] cffcdc91de34da43c2392a1fb897a1df22c07892cff0ebd334c0159a99e06c82