[INFO] cloning repository https://github.com/IoanBaranga/SimpleStackingRust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/IoanBaranga/SimpleStackingRust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIoanBaranga%2FSimpleStackingRust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIoanBaranga%2FSimpleStackingRust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5a9bbea4162f0443ac390182ba2f20e4f24f7221
[INFO] checking IoanBaranga/SimpleStackingRust against master#af3c6e733a40e671550e0f0f5aeecaa13772ba56 for pr-74989
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIoanBaranga%2FSimpleStackingRust" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/IoanBaranga/SimpleStackingRust on toolchain af3c6e733a40e671550e0f0f5aeecaa13772ba56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/IoanBaranga/SimpleStackingRust
[INFO] finished tweaking git repo https://github.com/IoanBaranga/SimpleStackingRust
[INFO] tweaked toml for git repo https://github.com/IoanBaranga/SimpleStackingRust written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/IoanBaranga/SimpleStackingRust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "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] bbcc2284c2201ec9111eab104c0886c0f0831731b099bf2a1404ace6d682a1d7
[INFO] running `Command { std: "docker" "start" "-a" "bbcc2284c2201ec9111eab104c0886c0f0831731b099bf2a1404ace6d682a1d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bbcc2284c2201ec9111eab104c0886c0f0831731b099bf2a1404ace6d682a1d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbcc2284c2201ec9111eab104c0886c0f0831731b099bf2a1404ace6d682a1d7", kill_on_drop: false }`
[INFO] [stdout] bbcc2284c2201ec9111eab104c0886c0f0831731b099bf2a1404ace6d682a1d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "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] deb2afc6ee958e5f18eec962cbc5de7a7535c4c00e7e9d1824fcea7f3909faa3
[INFO] running `Command { std: "docker" "start" "-a" "deb2afc6ee958e5f18eec962cbc5de7a7535c4c00e7e9d1824fcea7f3909faa3", kill_on_drop: false }`
[INFO] [stderr]     Checking SimpleStackingRust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]  --> src/trie/trie.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::env;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]  --> src/trie/trie.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::env;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Solution` in this scope
[INFO] [stdout]  --> src/duplicate-subtrees/duplicate-subtrees.rs:5:6
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl Solution {
[INFO] [stdout]   |      ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `TreeNode` in this scope
[INFO] [stdout]  --> src/duplicate-subtrees/duplicate-subtrees.rs:6:60
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl Solution {
[INFO] [stdout]   |     - help: you might be missing a type parameter: `<TreeNode>`
[INFO] [stdout] 6 |     pub fn find_duplicate_subtrees(root: Option<Rc<RefCell<TreeNode>>>) -> Vec<Option<Rc<RefCell<TreeNode>>>> {
[INFO] [stdout]   |                                                            ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `TreeNode` in this scope
[INFO] [stdout]  --> src/duplicate-subtrees/duplicate-subtrees.rs:6:98
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl Solution {
[INFO] [stdout]   |     - help: you might be missing a type parameter: `<TreeNode>`
[INFO] [stdout] 6 |     pub fn find_duplicate_subtrees(root: Option<Rc<RefCell<TreeNode>>>) -> Vec<Option<Rc<RefCell<TreeNode>>>> {
[INFO] [stdout]   |                                                                                                  ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Solution` in this scope
[INFO] [stdout]  --> src/duplicate-subtrees/duplicate-subtrees.rs:5:6
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl Solution {
[INFO] [stdout]   |      ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `TreeNode` in this scope
[INFO] [stdout]  --> src/duplicate-subtrees/duplicate-subtrees.rs:6:60
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl Solution {
[INFO] [stdout]   |     - help: you might be missing a type parameter: `<TreeNode>`
[INFO] [stdout] 6 |     pub fn find_duplicate_subtrees(root: Option<Rc<RefCell<TreeNode>>>) -> Vec<Option<Rc<RefCell<TreeNode>>>> {
[INFO] [stdout]   |                                                            ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `TreeNode` in this scope
[INFO] [stdout]  --> src/duplicate-subtrees/duplicate-subtrees.rs:6:98
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl Solution {
[INFO] [stdout]   |     - help: you might be missing a type parameter: `<TreeNode>`
[INFO] [stdout] 6 |     pub fn find_duplicate_subtrees(root: Option<Rc<RefCell<TreeNode>>>) -> Vec<Option<Rc<RefCell<TreeNode>>>> {
[INFO] [stdout]   |                                                                                                  ^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `SimpleStackingRust`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "deb2afc6ee958e5f18eec962cbc5de7a7535c4c00e7e9d1824fcea7f3909faa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "deb2afc6ee958e5f18eec962cbc5de7a7535c4c00e7e9d1824fcea7f3909faa3", kill_on_drop: false }`
[INFO] [stdout] deb2afc6ee958e5f18eec962cbc5de7a7535c4c00e7e9d1824fcea7f3909faa3
