[INFO] cloning repository https://github.com/blockdoth/concurent-btree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/blockdoth/concurent-btree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblockdoth%2Fconcurent-btree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblockdoth%2Fconcurent-btree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] db3d7eecee9a2ebe205f6fce8b4a4ce6e52c8aa6
[INFO] checking blockdoth/concurent-btree against try#f3d95de532264a1215023baa665c0028aecf74b1 for pr-148477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblockdoth%2Fconcurent-btree" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/blockdoth/concurent-btree
[INFO] finished tweaking git repo https://github.com/blockdoth/concurent-btree
[INFO] tweaked toml for git repo https://github.com/blockdoth/concurent-btree written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/blockdoth/concurent-btree on toolchain f3d95de532264a1215023baa665c0028aecf74b1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f3d95de532264a1215023baa665c0028aecf74b1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/blockdoth/concurent-btree 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" "+f3d95de532264a1215023baa665c0028aecf74b1" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+f3d95de532264a1215023baa665c0028aecf74b1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bd43c2d8bee3b7e850318bddb0236e568146fe166267ffc7bf20e351250e243d
[INFO] running `Command { std: "docker" "start" "-a" "bd43c2d8bee3b7e850318bddb0236e568146fe166267ffc7bf20e351250e243d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd43c2d8bee3b7e850318bddb0236e568146fe166267ffc7bf20e351250e243d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd43c2d8bee3b7e850318bddb0236e568146fe166267ffc7bf20e351250e243d", kill_on_drop: false }`
[INFO] [stdout] bd43c2d8bee3b7e850318bddb0236e568146fe166267ffc7bf20e351250e243d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+f3d95de532264a1215023baa665c0028aecf74b1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4526adf4df95aff3b0f96aca19cd5c5961bb4dd604295a395f742ebcea4750e9
[INFO] running `Command { std: "docker" "start" "-a" "4526adf4df95aff3b0f96aca19cd5c5961bb4dd604295a395f742ebcea4750e9", kill_on_drop: false }`
[INFO] [stderr]     Checking template v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:468:17
[INFO] [stdout]     |
[INFO] [stdout] 468 |             let mut tree_mut = Arc::clone(&tree);
[INFO] [stdout]     |                 ----^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0596]: cannot borrow data in an `Arc` as mutable
[INFO] [stdout]    --> src/main.rs:469:13
[INFO] [stdout]     |
[INFO] [stdout] 469 |             tree_mut.put(vec![i], vec![i * 10]);
[INFO] [stdout]     |             ^^^^^^^^ cannot borrow as mutable
[INFO] [stdout]     |
[INFO] [stdout]     = help: trait `DerefMut` is required to modify through a dereference, but it is not implemented for `Arc<BTree>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:500:21
[INFO] [stdout]     |
[INFO] [stdout] 500 |                 let mut tree_mut = tree_clone;
[INFO] [stdout]     |                     ----^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0596]: cannot borrow data in an `Arc` as mutable
[INFO] [stdout]    --> src/main.rs:501:17
[INFO] [stdout]     |
[INFO] [stdout] 501 |                 tree_mut.put(vec![i], vec![i * 100]);
[INFO] [stdout]     |                 ^^^^^^^^ cannot borrow as mutable
[INFO] [stdout]     |
[INFO] [stdout]     = help: trait `DerefMut` is required to modify through a dereference, but it is not implemented for `Arc<BTree>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0596`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `template` (bin "template" test) due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "4526adf4df95aff3b0f96aca19cd5c5961bb4dd604295a395f742ebcea4750e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4526adf4df95aff3b0f96aca19cd5c5961bb4dd604295a395f742ebcea4750e9", kill_on_drop: false }`
[INFO] [stdout] 4526adf4df95aff3b0f96aca19cd5c5961bb4dd604295a395f742ebcea4750e9
