[INFO] cloning repository https://github.com/cgarciae/algorithms
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cgarciae/algorithms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcgarciae%2Falgorithms", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcgarciae%2Falgorithms'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 39592eacdaa1b5e1f0003ca58b7e44263e1b602b
[INFO] checking cgarciae/algorithms against try#0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9 for pr-147185
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcgarciae%2Falgorithms" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/cgarciae/algorithms
[INFO] finished tweaking git repo https://github.com/cgarciae/algorithms
[INFO] tweaked toml for git repo https://github.com/cgarciae/algorithms written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cgarciae/algorithms on toolchain 0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/cgarciae/algorithms 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" "+0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 181f0ebc2916455a4352af0b9e159643f29ca6c316e8d196b4696255cac1c217
[INFO] running `Command { std: "docker" "start" "-a" "181f0ebc2916455a4352af0b9e159643f29ca6c316e8d196b4696255cac1c217", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "181f0ebc2916455a4352af0b9e159643f29ca6c316e8d196b4696255cac1c217", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "181f0ebc2916455a4352af0b9e159643f29ca6c316e8d196b4696255cac1c217", kill_on_drop: false }`
[INFO] [stdout] 181f0ebc2916455a4352af0b9e159643f29ca6c316e8d196b4696255cac1c217
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6cc7f101f393dc2cec1eebcb0d4b80746fcd0295d45da3cbbd425c14f70fcbcc
[INFO] running `Command { std: "docker" "start" "-a" "6cc7f101f393dc2cec1eebcb0d4b80746fcd0295d45da3cbbd425c14f70fcbcc", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]     Checking algorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `borrow` found for raw pointer `*mut Node` in the current scope
[INFO] [stdout]    --> src/bin/09_binary_search_trees.rs:129:46
[INFO] [stdout]     |
[INFO] [stdout] 129 |             let left = nodes_[left].as_ptr().borrow();
[INFO] [stdout]     |                        ------------          ^^^^^^
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        method `borrow` is available on `&RefCell<Node>`
[INFO] [stdout]     |
[INFO] [stdout]    --> /rustc/0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9/library/core/src/borrow.rs:179:8
[INFO] [stdout]     |
[INFO] [stdout]     = note: the method is available for `*mut Node` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `Borrow` which provides `borrow` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout]   1 + use std::borrow::Borrow;
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `borrow_mut` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 129 |             let left = nodes_[left].as_ptr().borrow_mut();
[INFO] [stdout]     |                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/bin/09_binary_search_trees.rs:132:53
[INFO] [stdout]     |
[INFO] [stdout] 132 |                 let left_right = nodes_[left_right].borrow();
[INFO] [stdout]     |                                                     ^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `borrow` found for raw pointer `*mut Node` in the current scope
[INFO] [stdout]    --> src/bin/09_binary_search_trees.rs:129:46
[INFO] [stdout]     |
[INFO] [stdout] 129 |             let left = nodes_[left].as_ptr().borrow();
[INFO] [stdout]     |                        ------------          ^^^^^^
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        method `borrow` is available on `&RefCell<Node>`
[INFO] [stdout]     |
[INFO] [stdout]    --> /rustc/0de49ae9e81f9a1e7df6f0783824ce94ed18e8a9/library/core/src/borrow.rs:179:8
[INFO] [stdout]     |
[INFO] [stdout]     = note: the method is available for `*mut Node` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `Borrow` which provides `borrow` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout]   1 + use std::borrow::Borrow;
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `borrow_mut` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 129 |             let left = nodes_[left].as_ptr().borrow_mut();
[INFO] [stdout]     |                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/bin/09_binary_search_trees.rs:132:53
[INFO] [stdout]     |
[INFO] [stdout] 132 |                 let left_right = nodes_[left_right].borrow();
[INFO] [stdout]     |                                                     ^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `algorithms` (bin "09_binary_search_trees") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `algorithms` (bin "09_binary_search_trees" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "6cc7f101f393dc2cec1eebcb0d4b80746fcd0295d45da3cbbd425c14f70fcbcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cc7f101f393dc2cec1eebcb0d4b80746fcd0295d45da3cbbd425c14f70fcbcc", kill_on_drop: false }`
[INFO] [stdout] 6cc7f101f393dc2cec1eebcb0d4b80746fcd0295d45da3cbbd425c14f70fcbcc