[INFO] cloning repository https://github.com/KhodingNow/Leaking_memory_withRc_RefCell
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KhodingNow/Leaking_memory_withRc_RefCell" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKhodingNow%2FLeaking_memory_withRc_RefCell", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKhodingNow%2FLeaking_memory_withRc_RefCell'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3465e16b334784f610d32f9f5863453639e25963
[INFO] checking KhodingNow/Leaking_memory_withRc_RefCell against try#94e848735e78b58442e0b82e9c60f8f430840389 for pr-149218
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKhodingNow%2FLeaking_memory_withRc_RefCell" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/KhodingNow/Leaking_memory_withRc_RefCell
[INFO] finished tweaking git repo https://github.com/KhodingNow/Leaking_memory_withRc_RefCell
[INFO] tweaked toml for git repo https://github.com/KhodingNow/Leaking_memory_withRc_RefCell written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/KhodingNow/Leaking_memory_withRc_RefCell on toolchain 94e848735e78b58442e0b82e9c60f8f430840389
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+94e848735e78b58442e0b82e9c60f8f430840389" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/KhodingNow/Leaking_memory_withRc_RefCell already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+94e848735e78b58442e0b82e9c60f8f430840389" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+94e848735e78b58442e0b82e9c60f8f430840389" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3f36b2f531d6fe8770dc6a035fcd11bc0f1374d0570d9b91bbc2f7b848d68975
[INFO] running `Command { std: "docker" "start" "-a" "3f36b2f531d6fe8770dc6a035fcd11bc0f1374d0570d9b91bbc2f7b848d68975", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f36b2f531d6fe8770dc6a035fcd11bc0f1374d0570d9b91bbc2f7b848d68975", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f36b2f531d6fe8770dc6a035fcd11bc0f1374d0570d9b91bbc2f7b848d68975", kill_on_drop: false }`
[INFO] [stdout] 3f36b2f531d6fe8770dc6a035fcd11bc0f1374d0570d9b91bbc2f7b848d68975
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+94e848735e78b58442e0b82e9c60f8f430840389" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 28c3c344ab80cddd6afd8b87ee69824c5670595f54b7cfadd9636ce7d388de06
[INFO] running `Command { std: "docker" "start" "-a" "28c3c344ab80cddd6afd8b87ee69824c5670595f54b7cfadd9636ce7d388de06", kill_on_drop: false }`
[INFO] [stderr]     Checking reference_cycle_leaking_mem v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0428]: the name `Node` is defined multiple times
[INFO] [stdout]    --> src/main.rs:100:9
[INFO] [stdout]     |
[INFO] [stdout]  59 |         struct Node {
[INFO] [stdout]     |         ----------- previous definition of the type `Node` here
[INFO] [stdout] ...
[INFO] [stdout] 100 |         struct Node {
[INFO] [stdout]     |         ^^^^^^^^^^^ `Node` redefined here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Node` must be defined only once in the type namespace of this block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0428]: the name `Node` is defined multiple times
[INFO] [stdout]    --> src/main.rs:100:9
[INFO] [stdout]     |
[INFO] [stdout]  59 |         struct Node {
[INFO] [stdout]     |         ----------- previous definition of the type `Node` here
[INFO] [stdout] ...
[INFO] [stdout] 100 |         struct Node {
[INFO] [stdout]     |         ^^^^^^^^^^^ `Node` redefined here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Node` must be defined only once in the type namespace of this block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Weak` in this scope
[INFO] [stdout]    --> src/main.rs:102:29
[INFO] [stdout]     |
[INFO] [stdout] 102 |             parent: RefCell<Weak<Node>>,
[INFO] [stdout]     |                             ^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these structs
[INFO] [stdout]     |
[INFO] [stdout]   3 + use std::rc::Weak;
[INFO] [stdout]     |
[INFO] [stdout]   3 + use std::sync::Weak;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Weak`
[INFO] [stdout]    --> src/main.rs:109:34
[INFO] [stdout]     |
[INFO] [stdout] 109 |             parent: RefCell::new(Weak::new()),
[INFO] [stdout]     |                                  ^^^^ use of undeclared type `Weak`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these structs
[INFO] [stdout]     |
[INFO] [stdout]   3 + use std::rc::Weak;
[INFO] [stdout]     |
[INFO] [stdout]   3 + use std::sync::Weak;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Weak`
[INFO] [stdout]    --> src/main.rs:117:34
[INFO] [stdout]     |
[INFO] [stdout] 117 |             parent: RefCell::new(Weak::new()),
[INFO] [stdout]     |                                  ^^^^ use of undeclared type `Weak`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these structs
[INFO] [stdout]     |
[INFO] [stdout]   3 + use std::rc::Weak;
[INFO] [stdout]     |
[INFO] [stdout]   3 + use std::sync::Weak;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0107]: missing generics for struct `RefCell`
[INFO] [stdout]   --> src/main.rs:61:38
[INFO] [stdout]    |
[INFO] [stdout] 61 |             children: RefCell<Vec<Rc<RefCell>>>,
[INFO] [stdout]    |                                      ^^^^^^^ expected 1 generic argument
[INFO] [stdout]    |
[INFO] [stdout] help: add missing generic argument
[INFO] [stdout]    |
[INFO] [stdout] 61 |             children: RefCell<Vec<Rc<RefCell<T>>>>,
[INFO] [stdout]    |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0119]: conflicting implementations of trait `Debug` for type `main::Node`
[INFO] [stdout]   --> src/main.rs:99:18
[INFO] [stdout]    |
[INFO] [stdout] 58 |         #[derive(Debug)]
[INFO] [stdout]    |                  ----- first implementation here
[INFO] [stdout] ...
[INFO] [stdout] 99 |         #[derive(Debug)]
[INFO] [stdout]    |                  ^^^^^ conflicting implementation for `main::Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Weak` in this scope
[INFO] [stdout]    --> src/main.rs:102:29
[INFO] [stdout]     |
[INFO] [stdout] 102 |             parent: RefCell<Weak<Node>>,
[INFO] [stdout]     |                             ^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these structs
[INFO] [stdout]     |
[INFO] [stdout]   3 + use std::rc::Weak;
[INFO] [stdout]     |
[INFO] [stdout]   3 + use std::sync::Weak;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Weak`
[INFO] [stdout]    --> src/main.rs:109:34
[INFO] [stdout]     |
[INFO] [stdout] 109 |             parent: RefCell::new(Weak::new()),
[INFO] [stdout]     |                                  ^^^^ use of undeclared type `Weak`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these structs
[INFO] [stdout]     |
[INFO] [stdout]   3 + use std::rc::Weak;
[INFO] [stdout]     |
[INFO] [stdout]   3 + use std::sync::Weak;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Weak`
[INFO] [stdout]    --> src/main.rs:117:34
[INFO] [stdout]     |
[INFO] [stdout] 117 |             parent: RefCell::new(Weak::new()),
[INFO] [stdout]     |                                  ^^^^ use of undeclared type `Weak`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these structs
[INFO] [stdout]     |
[INFO] [stdout]   3 + use std::rc::Weak;
[INFO] [stdout]     |
[INFO] [stdout]   3 + use std::sync::Weak;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0107]: missing generics for struct `RefCell`
[INFO] [stdout]   --> src/main.rs:61:38
[INFO] [stdout]    |
[INFO] [stdout] 61 |             children: RefCell<Vec<Rc<RefCell>>>,
[INFO] [stdout]    |                                      ^^^^^^^ expected 1 generic argument
[INFO] [stdout]    |
[INFO] [stdout] help: add missing generic argument
[INFO] [stdout]    |
[INFO] [stdout] 61 |             children: RefCell<Vec<Rc<RefCell<T>>>>,
[INFO] [stdout]    |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0119]: conflicting implementations of trait `Debug` for type `main::Node`
[INFO] [stdout]   --> src/main.rs:99:18
[INFO] [stdout]    |
[INFO] [stdout] 58 |         #[derive(Debug)]
[INFO] [stdout]    |                  ----- first implementation here
[INFO] [stdout] ...
[INFO] [stdout] 99 |         #[derive(Debug)]
[INFO] [stdout]    |                  ^^^^^ conflicting implementation for `main::Node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0560]: struct `main::Node` has no field named `parent`
[INFO] [stdout]    --> src/main.rs:109:13
[INFO] [stdout]     |
[INFO] [stdout] 109 |             parent: RefCell::new(Weak::new()),
[INFO] [stdout]     |             ^^^^^^ `main::Node` does not have this field
[INFO] [stdout]     |
[INFO] [stdout]     = note: all struct fields are already assigned
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0560]: struct `main::Node` has no field named `parent`
[INFO] [stdout]    --> src/main.rs:109:13
[INFO] [stdout]     |
[INFO] [stdout] 109 |             parent: RefCell::new(Weak::new()),
[INFO] [stdout]     |             ^^^^^^ `main::Node` does not have this field
[INFO] [stdout]     |
[INFO] [stdout]     = note: all struct fields are already assigned
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0609]: no field `parent` on type `Rc<main::Node>`
[INFO] [stdout]    --> src/main.rs:113:45
[INFO] [stdout]     |
[INFO] [stdout] 113 |         println!("leaf parent = {:?}", leaf.parent.borrow().upgrade());
[INFO] [stdout]     |                                             ^^^^^^ unknown field
[INFO] [stdout]     |
[INFO] [stdout]     = note: available fields are: `value`, `children`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0609]: no field `parent` on type `Rc<main::Node>`
[INFO] [stdout]    --> src/main.rs:113:45
[INFO] [stdout]     |
[INFO] [stdout] 113 |         println!("leaf parent = {:?}", leaf.parent.borrow().upgrade());
[INFO] [stdout]     |                                             ^^^^^^ unknown field
[INFO] [stdout]     |
[INFO] [stdout]     = note: available fields are: `value`, `children`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0560]: struct `main::Node` has no field named `parent`
[INFO] [stdout]    --> src/main.rs:117:13
[INFO] [stdout]     |
[INFO] [stdout] 117 |             parent: RefCell::new(Weak::new()),
[INFO] [stdout]     |             ^^^^^^ `main::Node` does not have this field
[INFO] [stdout]     |
[INFO] [stdout]     = note: all struct fields are already assigned
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0560]: struct `main::Node` has no field named `parent`
[INFO] [stdout]    --> src/main.rs:117:13
[INFO] [stdout]     |
[INFO] [stdout] 117 |             parent: RefCell::new(Weak::new()),
[INFO] [stdout]     |             ^^^^^^ `main::Node` does not have this field
[INFO] [stdout]     |
[INFO] [stdout]     = note: all struct fields are already assigned
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0609]: no field `parent` on type `Rc<main::Node>`
[INFO] [stdout]    --> src/main.rs:121:15
[INFO] [stdout]     |
[INFO] [stdout] 121 |         *leaf.parent.borrow_mut() = Rc::downgrade(&branch);
[INFO] [stdout]     |               ^^^^^^ unknown field
[INFO] [stdout]     |
[INFO] [stdout]     = note: available fields are: `value`, `children`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0609]: no field `parent` on type `Rc<main::Node>`
[INFO] [stdout]    --> src/main.rs:123:45
[INFO] [stdout]     |
[INFO] [stdout] 123 |         println!("leaf parent = {:?}", leaf.parent.borrow().upgrade());
[INFO] [stdout]     |                                             ^^^^^^ unknown field
[INFO] [stdout]     |
[INFO] [stdout]     = note: available fields are: `value`, `children`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0609]: no field `parent` on type `Rc<main::Node>`
[INFO] [stdout]    --> src/main.rs:121:15
[INFO] [stdout]     |
[INFO] [stdout] 121 |         *leaf.parent.borrow_mut() = Rc::downgrade(&branch);
[INFO] [stdout]     |               ^^^^^^ unknown field
[INFO] [stdout]     |
[INFO] [stdout]     = note: available fields are: `value`, `children`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0609]: no field `parent` on type `&main::Node`
[INFO] [stdout]    --> src/main.rs:102:13
[INFO] [stdout]     |
[INFO] [stdout] 102 |             parent: RefCell<Weak<Node>>,
[INFO] [stdout]     |             ^^^^^^ unknown field
[INFO] [stdout]     |
[INFO] [stdout]     = note: available fields are: `value`, `children`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0609]: no field `parent` on type `Rc<main::Node>`
[INFO] [stdout]    --> src/main.rs:123:45
[INFO] [stdout]     |
[INFO] [stdout] 123 |         println!("leaf parent = {:?}", leaf.parent.borrow().upgrade());
[INFO] [stdout]     |                                             ^^^^^^ unknown field
[INFO] [stdout]     |
[INFO] [stdout]     = note: available fields are: `value`, `children`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0609]: no field `parent` on type `&main::Node`
[INFO] [stdout]    --> src/main.rs:102:13
[INFO] [stdout]     |
[INFO] [stdout] 102 |             parent: RefCell<Weak<Node>>,
[INFO] [stdout]     |             ^^^^^^ unknown field
[INFO] [stdout]     |
[INFO] [stdout]     = note: available fields are: `value`, `children`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0107, E0119, E0412, E0428, E0433, E0560, E0609.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0107`.
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0107, E0119, E0412, E0428, E0433, E0560, E0609.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0107`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `reference_cycle_leaking_mem` (bin "reference_cycle_leaking_mem") due to 12 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `reference_cycle_leaking_mem` (bin "reference_cycle_leaking_mem" test) due to 12 previous errors
[INFO] running `Command { std: "docker" "inspect" "28c3c344ab80cddd6afd8b87ee69824c5670595f54b7cfadd9636ce7d388de06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28c3c344ab80cddd6afd8b87ee69824c5670595f54b7cfadd9636ce7d388de06", kill_on_drop: false }`
[INFO] [stdout] 28c3c344ab80cddd6afd8b87ee69824c5670595f54b7cfadd9636ce7d388de06
