[INFO] fetching crate gitchat 0.2.0...
[INFO] checking gitchat-0.2.0 against master#8a703520e80d87d4423c01f9d4fbc9e5f6533a02 for pr-154205-1
[INFO] extracting crate gitchat 0.2.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate gitchat 0.2.0
[INFO] finished tweaking crates.io crate gitchat 0.2.0
[INFO] tweaked toml for crates.io crate gitchat 0.2.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate gitchat 0.2.0 on toolchain 8a703520e80d87d4423c01f9d4fbc9e5f6533a02
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a703520e80d87d4423c01f9d4fbc9e5f6533a02" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate gitchat 0.2.0 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" "+8a703520e80d87d4423c01f9d4fbc9e5f6533a02" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded zmij v1.0.15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+8a703520e80d87d4423c01f9d4fbc9e5f6533a02" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0f6ff925dcdbe52ea220921f81f64e9ee873bc7e39bba31d8104944d7a314f6a
[INFO] running `Command { std: "docker" "start" "-a" "0f6ff925dcdbe52ea220921f81f64e9ee873bc7e39bba31d8104944d7a314f6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f6ff925dcdbe52ea220921f81f64e9ee873bc7e39bba31d8104944d7a314f6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f6ff925dcdbe52ea220921f81f64e9ee873bc7e39bba31d8104944d7a314f6a", kill_on_drop: false }`
[INFO] [stdout] 0f6ff925dcdbe52ea220921f81f64e9ee873bc7e39bba31d8104944d7a314f6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+8a703520e80d87d4423c01f9d4fbc9e5f6533a02" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d174e69b17e566c2e182f1499fc0ec9d7edbc274aa87a18d282d8acbde4dcac8
[INFO] running `Command { std: "docker" "start" "-a" "d174e69b17e566c2e182f1499fc0ec9d7edbc274aa87a18d282d8acbde4dcac8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.105
[INFO] [stderr]    Compiling quote v1.0.43
[INFO] [stderr]    Compiling libc v0.2.180
[INFO] [stderr]    Compiling zmij v1.0.15
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]     Checking getrandom v0.3.4
[INFO] [stderr]     Checking uuid v1.19.0
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking gitchat v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `dev_idx`
[INFO] [stdout]    --> src/tests/mod.rs:262:9
[INFO] [stdout]     |
[INFO] [stdout] 262 |     let dev_idx = ok(root.find_branch_index_by_uuid(&dev_id));
[INFO] [stdout]     |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_dev_idx`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `MsgId` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |         let MsgId:Uuid;
[INFO] [stdout]    |             ^^^^^ help: convert the identifier to snake case: `msg_id`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `MsgIndex` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:67:30
[INFO] [stdout]    |
[INFO] [stdout] 67 |             I64OrUuid::Index(MsgIndex) => {
[INFO] [stdout]    |                              ^^^^^^^^ help: convert the identifier to snake case: `msg_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:120:9
[INFO] [stdout]     |
[INFO] [stdout] 120 |         &mut self.branches.push(Branch::new(name.clone()));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 120 |         let _ = &mut self.branches.push(Branch::new(name.clone()));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `MsgId` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |         let MsgId:Uuid;
[INFO] [stdout]    |             ^^^^^ help: convert the identifier to snake case: `msg_id`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `MsgIndex` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:67:30
[INFO] [stdout]    |
[INFO] [stdout] 67 |             I64OrUuid::Index(MsgIndex) => {
[INFO] [stdout]    |                              ^^^^^^^^ help: convert the identifier to snake case: `msg_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:120:9
[INFO] [stdout]     |
[INFO] [stdout] 120 |         &mut self.branches.push(Branch::new(name.clone()));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 120 |         let _ = &mut self.branches.push(Branch::new(name.clone()));
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.29s
[INFO] running `Command { std: "docker" "inspect" "d174e69b17e566c2e182f1499fc0ec9d7edbc274aa87a18d282d8acbde4dcac8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d174e69b17e566c2e182f1499fc0ec9d7edbc274aa87a18d282d8acbde4dcac8", kill_on_drop: false }`
[INFO] [stdout] d174e69b17e566c2e182f1499fc0ec9d7edbc274aa87a18d282d8acbde4dcac8