[INFO] cloning repository https://github.com/shybyte/rusty-13-ways-of-looking-at-a-turtle
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shybyte/rusty-13-ways-of-looking-at-a-turtle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshybyte%2Frusty-13-ways-of-looking-at-a-turtle", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshybyte%2Frusty-13-ways-of-looking-at-a-turtle'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c092e27489cced7d6ab70c8220e8380c12d451e2
[INFO] checking shybyte/rusty-13-ways-of-looking-at-a-turtle against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshybyte%2Frusty-13-ways-of-looking-at-a-turtle" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shybyte/rusty-13-ways-of-looking-at-a-turtle on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/shybyte/rusty-13-ways-of-looking-at-a-turtle
[INFO] finished tweaking git repo https://github.com/shybyte/rusty-13-ways-of-looking-at-a-turtle
[INFO] tweaked toml for git repo https://github.com/shybyte/rusty-13-ways-of-looking-at-a-turtle written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/shybyte/rusty-13-ways-of-looking-at-a-turtle already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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] 55c526a8d820ca73cd926b4a438f9253f58d4572dc747686b836a1f9c8de3e8a
[INFO] running `Command { std: "docker" "start" "-a" "55c526a8d820ca73cd926b4a438f9253f58d4572dc747686b836a1f9c8de3e8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55c526a8d820ca73cd926b4a438f9253f58d4572dc747686b836a1f9c8de3e8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55c526a8d820ca73cd926b4a438f9253f58d4572dc747686b836a1f9c8de3e8a", kill_on_drop: false }`
[INFO] [stdout] 55c526a8d820ca73cd926b4a438f9253f58d4572dc747686b836a1f9c8de3e8a
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 70ac2da6bd35ab734512ba9ec9af882ad4f6bc12ed3a86f3c611ba7c056a38f2
[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" "70ac2da6bd35ab734512ba9ec9af882ad4f6bc12ed3a86f3c611ba7c056a38f2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking rusty_13_ways_of_looking_at_a_turtle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/fp_utils.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 |              -> Box<Fn(&R) -> R> where
[INFO] [stdout]   |                     ^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&R) -> R`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[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/fp_utils.rs:15:25
[INFO] [stdout]    |
[INFO] [stdout] 15 |                  -> Box<Fn(&R) -> R> where
[INFO] [stdout]    |                         ^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&R) -> R`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[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/fp_utils.rs:25:49
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn pipeline<T>(start_value: T, funcs: &[Box<Fn(&T) -> T>]) -> T {
[INFO] [stdout]    |                                                 ^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&T) -> T`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[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/fp_utils.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 |              -> Box<Fn(&R) -> R> where
[INFO] [stdout]   |                     ^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&R) -> R`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[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/fp_utils.rs:15:25
[INFO] [stdout]    |
[INFO] [stdout] 15 |                  -> Box<Fn(&R) -> R> where
[INFO] [stdout]    |                         ^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&R) -> R`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[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/fp_utils.rs:25:49
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn pipeline<T>(start_value: T, funcs: &[Box<Fn(&T) -> T>]) -> T {
[INFO] [stdout]    |                                                 ^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&T) -> T`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.30s
[INFO] running `Command { std: "docker" "inspect" "70ac2da6bd35ab734512ba9ec9af882ad4f6bc12ed3a86f3c611ba7c056a38f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70ac2da6bd35ab734512ba9ec9af882ad4f6bc12ed3a86f3c611ba7c056a38f2", kill_on_drop: false }`
[INFO] [stdout] 70ac2da6bd35ab734512ba9ec9af882ad4f6bc12ed3a86f3c611ba7c056a38f2