[INFO] cloning repository https://github.com/HolisticCoders/shelob
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/HolisticCoders/shelob" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHolisticCoders%2Fshelob", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHolisticCoders%2Fshelob'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 06ae7196497e790d0b1ea2658fb8ade246a154ff
[INFO] checking HolisticCoders/shelob against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHolisticCoders%2Fshelob" "/workspace/builds/worker-31/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-31/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/HolisticCoders/shelob on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/HolisticCoders/shelob
[INFO] finished tweaking git repo https://github.com/HolisticCoders/shelob
[INFO] tweaked toml for git repo https://github.com/HolisticCoders/shelob written to /workspace/builds/worker-31/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "fetch" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a534d0d8dd60b6825325b012ed62115a78a80d431e78bd0875a3df6b57f5e1f5
[INFO] running `Command { std: "docker" "start" "-a" "a534d0d8dd60b6825325b012ed62115a78a80d431e78bd0875a3df6b57f5e1f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a534d0d8dd60b6825325b012ed62115a78a80d431e78bd0875a3df6b57f5e1f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a534d0d8dd60b6825325b012ed62115a78a80d431e78bd0875a3df6b57f5e1f5", kill_on_drop: false }`
[INFO] [stdout] a534d0d8dd60b6825325b012ed62115a78a80d431e78bd0875a3df6b57f5e1f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 28e8c1fcfb8f8b7a9c76c677f5e409264c5e14d241a31a3f8325746286c46dd8
[INFO] running `Command { std: "docker" "start" "-a" "28e8c1fcfb8f8b7a9c76c677f5e409264c5e14d241a31a3f8325746286c46dd8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking shelob v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/graph.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 |     nodes: Vec<Box<Node>>,
[INFO] [stdout]   |                    ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/graph.rs:9:42
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn add_node(&mut self, node: Box<Node>) -> &Box<Node> {
[INFO] [stdout]   |                                          ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/graph.rs:9:57
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn add_node(&mut self, node: Box<Node>) -> &Box<Node> {
[INFO] [stdout]   |                                                         ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graph.rs:19:37
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn nodes(&self) -> &Vec<Box<Node>> {
[INFO] [stdout]    |                                     ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/graph.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 |     nodes: Vec<Box<Node>>,
[INFO] [stdout]   |                    ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/graph.rs:9:42
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn add_node(&mut self, node: Box<Node>) -> &Box<Node> {
[INFO] [stdout]   |                                          ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/graph.rs:9:57
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn add_node(&mut self, node: Box<Node>) -> &Box<Node> {
[INFO] [stdout]   |                                                         ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graph.rs:19:37
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn nodes(&self) -> &Vec<Box<Node>> {
[INFO] [stdout]    |                                     ^^^^ help: use `dyn`: `dyn Node`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.24s
[INFO] running `Command { std: "docker" "inspect" "28e8c1fcfb8f8b7a9c76c677f5e409264c5e14d241a31a3f8325746286c46dd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28e8c1fcfb8f8b7a9c76c677f5e409264c5e14d241a31a3f8325746286c46dd8", kill_on_drop: false }`
[INFO] [stdout] 28e8c1fcfb8f8b7a9c76c677f5e409264c5e14d241a31a3f8325746286c46dd8