[INFO] cloning repository https://github.com/tolskais/model-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tolskais/model-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftolskais%2Fmodel-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftolskais%2Fmodel-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 92c109347d66cadd1161bc6f96852384bf714af6
[INFO] checking tolskais/model-rust against try#173780a87744406b7489b28349c0176f14bb3881 for pr-135841
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftolskais%2Fmodel-rust" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tolskais/model-rust on toolchain 173780a87744406b7489b28349c0176f14bb3881
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+173780a87744406b7489b28349c0176f14bb3881" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tolskais/model-rust
[INFO] finished tweaking git repo https://github.com/tolskais/model-rust
[INFO] tweaked toml for git repo https://github.com/tolskais/model-rust written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/tolskais/model-rust 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" "+173780a87744406b7489b28349c0176f14bb3881" "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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+173780a87744406b7489b28349c0176f14bb3881" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fed34aa4a81809b21504c4cfe8fec23b968845145bf87d4e41df24e7bf41a474
[INFO] running `Command { std: "docker" "start" "-a" "fed34aa4a81809b21504c4cfe8fec23b968845145bf87d4e41df24e7bf41a474", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fed34aa4a81809b21504c4cfe8fec23b968845145bf87d4e41df24e7bf41a474", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fed34aa4a81809b21504c4cfe8fec23b968845145bf87d4e41df24e7bf41a474", kill_on_drop: false }`
[INFO] [stdout] fed34aa4a81809b21504c4cfe8fec23b968845145bf87d4e41df24e7bf41a474
[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" "-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+173780a87744406b7489b28349c0176f14bb3881" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b5ecd914ee5a2f2b965bc11b373ef2c7d804b010c570b7eea1f279e2e08d2e49
[INFO] running `Command { std: "docker" "start" "-a" "b5ecd914ee5a2f2b965bc11b373ef2c7d804b010c570b7eea1f279e2e08d2e49", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-model v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `access_flag`
[INFO] [stdout]  --> src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let access_flag = reader.next_u16();
[INFO] [stdout]   |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_access_flag`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `class_name`
[INFO] [stdout]   --> src/main.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let class_name = reader.next_u16();
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_class_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `super_name`
[INFO] [stdout]   --> src/main.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let super_name = reader.next_u16();
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_super_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `access_flag`
[INFO] [stdout]   --> src/main.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let access_flag = reader.next_u16();
[INFO] [stdout]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_access_flag`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Constant` is more private than the item `ClassBuffer::read_utf8`
[INFO] [stdout]   --> src/reader/mod.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn read_utf8(&self, def: &Constant) -> Result<&str, &str> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `ClassBuffer::read_utf8` is reachable at visibility `pub(crate)`
[INFO] [stdout]    |
[INFO] [stdout] note: but type `Constant` is only usable at visibility `pub(self)`
[INFO] [stdout]   --> src/reader/mod.rs:7:1
[INFO] [stdout]    |
[INFO] [stdout] 7  | struct Constant {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ACCESS_FLAG_SIZE` is never used
[INFO] [stdout]   --> src/reader/mod.rs:19:7
[INFO] [stdout]    |
[INFO] [stdout] 19 | const ACCESS_FLAG_SIZE: u16 = 2;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CLASS_SIZE` is never used
[INFO] [stdout]   --> src/reader/mod.rs:20:7
[INFO] [stdout]    |
[INFO] [stdout] 20 | const CLASS_SIZE: u16 = 2;
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SUPER_SIZE` is never used
[INFO] [stdout]   --> src/reader/mod.rs:21:7
[INFO] [stdout]    |
[INFO] [stdout] 21 | const SUPER_SIZE: u16 = 2;
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ITF_COUNT_SIZE` is never used
[INFO] [stdout]   --> src/reader/mod.rs:22:7
[INFO] [stdout]    |
[INFO] [stdout] 22 | const ITF_COUNT_SIZE: u16 = 2;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FIELD_COUNT_SIZE` is never used
[INFO] [stdout]   --> src/reader/mod.rs:24:7
[INFO] [stdout]    |
[INFO] [stdout] 24 | const FIELD_COUNT_SIZE: u16 = 2;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `METHOD_COUNT` is never used
[INFO] [stdout]   --> src/reader/mod.rs:26:7
[INFO] [stdout]    |
[INFO] [stdout] 26 | const METHOD_COUNT: u16 = 2;
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ATTRIBUTE_COUNT` is never used
[INFO] [stdout]   --> src/reader/mod.rs:28:7
[INFO] [stdout]    |
[INFO] [stdout] 28 | const ATTRIBUTE_COUNT: u16 = 2;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `access_flag`
[INFO] [stdout]  --> src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let access_flag = reader.next_u16();
[INFO] [stdout]   |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_access_flag`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `class_name`
[INFO] [stdout]   --> src/main.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let class_name = reader.next_u16();
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_class_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `super_name`
[INFO] [stdout]   --> src/main.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let super_name = reader.next_u16();
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_super_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `access_flag`
[INFO] [stdout]   --> src/main.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let access_flag = reader.next_u16();
[INFO] [stdout]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_access_flag`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Constant` is more private than the item `ClassBuffer::read_utf8`
[INFO] [stdout]   --> src/reader/mod.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn read_utf8(&self, def: &Constant) -> Result<&str, &str> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `ClassBuffer::read_utf8` is reachable at visibility `pub(crate)`
[INFO] [stdout]    |
[INFO] [stdout] note: but type `Constant` is only usable at visibility `pub(self)`
[INFO] [stdout]   --> src/reader/mod.rs:7:1
[INFO] [stdout]    |
[INFO] [stdout] 7  | struct Constant {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ACCESS_FLAG_SIZE` is never used
[INFO] [stdout]   --> src/reader/mod.rs:19:7
[INFO] [stdout]    |
[INFO] [stdout] 19 | const ACCESS_FLAG_SIZE: u16 = 2;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CLASS_SIZE` is never used
[INFO] [stdout]   --> src/reader/mod.rs:20:7
[INFO] [stdout]    |
[INFO] [stdout] 20 | const CLASS_SIZE: u16 = 2;
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SUPER_SIZE` is never used
[INFO] [stdout]   --> src/reader/mod.rs:21:7
[INFO] [stdout]    |
[INFO] [stdout] 21 | const SUPER_SIZE: u16 = 2;
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ITF_COUNT_SIZE` is never used
[INFO] [stdout]   --> src/reader/mod.rs:22:7
[INFO] [stdout]    |
[INFO] [stdout] 22 | const ITF_COUNT_SIZE: u16 = 2;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FIELD_COUNT_SIZE` is never used
[INFO] [stdout]   --> src/reader/mod.rs:24:7
[INFO] [stdout]    |
[INFO] [stdout] 24 | const FIELD_COUNT_SIZE: u16 = 2;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `METHOD_COUNT` is never used
[INFO] [stdout]   --> src/reader/mod.rs:26:7
[INFO] [stdout]    |
[INFO] [stdout] 26 | const METHOD_COUNT: u16 = 2;
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ATTRIBUTE_COUNT` is never used
[INFO] [stdout]   --> src/reader/mod.rs:28:7
[INFO] [stdout]    |
[INFO] [stdout] 28 | const ATTRIBUTE_COUNT: u16 = 2;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "b5ecd914ee5a2f2b965bc11b373ef2c7d804b010c570b7eea1f279e2e08d2e49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5ecd914ee5a2f2b965bc11b373ef2c7d804b010c570b7eea1f279e2e08d2e49", kill_on_drop: false }`
[INFO] [stdout] b5ecd914ee5a2f2b965bc11b373ef2c7d804b010c570b7eea1f279e2e08d2e49