[INFO] cloning repository https://github.com/JTMax1/learnmerkle
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JTMax1/learnmerkle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJTMax1%2Flearnmerkle", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJTMax1%2Flearnmerkle'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fff02a6c9aa6dc62e5e20f9f0b7f802508d646c2
[INFO] checking JTMax1/learnmerkle against try#7b3da9103634dffd4f4365cfd8642427c781d99f+rustflags=-Dinherent-method-on-receiver for 152214-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJTMax1%2Flearnmerkle" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/JTMax1/learnmerkle
[INFO] finished tweaking git repo https://github.com/JTMax1/learnmerkle
[INFO] tweaked toml for git repo https://github.com/JTMax1/learnmerkle written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/JTMax1/learnmerkle on toolchain 7b3da9103634dffd4f4365cfd8642427c781d99f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/JTMax1/learnmerkle 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" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0c90ad218946f512aaa8a6f70752d4dc1c0cfd0c816bb67994f4147bff5bc61a
[INFO] running `Command { std: "docker" "start" "-a" "0c90ad218946f512aaa8a6f70752d4dc1c0cfd0c816bb67994f4147bff5bc61a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c90ad218946f512aaa8a6f70752d4dc1c0cfd0c816bb67994f4147bff5bc61a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c90ad218946f512aaa8a6f70752d4dc1c0cfd0c816bb67994f4147bff5bc61a", kill_on_drop: false }`
[INFO] [stdout] 0c90ad218946f512aaa8a6f70752d4dc1c0cfd0c816bb67994f4147bff5bc61a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Dinherent-method-on-receiver" "-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+7b3da9103634dffd4f4365cfd8642427c781d99f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17528d5d232c1413bc77e32b55b332d01b989c920bb3dcbd3f568e6d43d0b5b3
[INFO] running `Command { std: "docker" "start" "-a" "17528d5d232c1413bc77e32b55b332d01b989c920bb3dcbd3f568e6d43d0b5b3", kill_on_drop: false }`
[INFO] [stderr]     Checking learnmerkle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/merkle.rs:23:33
[INFO] [stdout]    |
[INFO] [stdout] 23 |         MerkleTree { root_hash: (), leafs: vec![genesis_leaf] }
[INFO] [stdout]    |                                 ^^ expected `[u8; 32]`, found `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0615]: attempted to take value of method `root` on type `&MerkleTree`
[INFO] [stdout]   --> src/merkle.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 |         &self.root
[INFO] [stdout]    |               ^^^^ method, not a field
[INFO] [stdout]    |
[INFO] [stdout] help: use parentheses to call the method
[INFO] [stdout]    |
[INFO] [stdout] 27 |         &self.root()
[INFO] [stdout]    |                   ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/merkle.rs:23:33
[INFO] [stdout]    |
[INFO] [stdout] 23 |         MerkleTree { root_hash: (), leafs: vec![genesis_leaf] }
[INFO] [stdout]    |                                 ^^ expected `[u8; 32]`, found `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0615.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `learnmerkle` (bin "learnmerkle" test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `learnmerkle` (bin "learnmerkle") due to 2 previous errors
[INFO] [stdout] error[E0615]: attempted to take value of method `root` on type `&MerkleTree`
[INFO] [stdout]   --> src/merkle.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 |         &self.root
[INFO] [stdout]    |               ^^^^ method, not a field
[INFO] [stdout]    |
[INFO] [stdout] help: use parentheses to call the method
[INFO] [stdout]    |
[INFO] [stdout] 27 |         &self.root()
[INFO] [stdout]    |                   ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0615.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "17528d5d232c1413bc77e32b55b332d01b989c920bb3dcbd3f568e6d43d0b5b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17528d5d232c1413bc77e32b55b332d01b989c920bb3dcbd3f568e6d43d0b5b3", kill_on_drop: false }`
[INFO] [stdout] 17528d5d232c1413bc77e32b55b332d01b989c920bb3dcbd3f568e6d43d0b5b3