[INFO] cloning repository https://github.com/serkonon/web_app
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/serkonon/web_app" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fserkonon%2Fweb_app", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fserkonon%2Fweb_app'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e0df4d4576755731a7cd2c2610f7f42857f69ac7
[INFO] checking serkonon/web_app against try#f17e3a389e192f83fe27a581774a9d1dbb8e565b for pr-137394
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fserkonon%2Fweb_app" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/serkonon/web_app on toolchain f17e3a389e192f83fe27a581774a9d1dbb8e565b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f17e3a389e192f83fe27a581774a9d1dbb8e565b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/serkonon/web_app
[INFO] finished tweaking git repo https://github.com/serkonon/web_app
[INFO] tweaked toml for git repo https://github.com/serkonon/web_app written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/serkonon/web_app 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" "+f17e3a389e192f83fe27a581774a9d1dbb8e565b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+f17e3a389e192f83fe27a581774a9d1dbb8e565b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a44f181de8bfdad9e5554e20a19806a5d2a3a02177dc51cb152d1f64e93da12b
[INFO] running `Command { std: "docker" "start" "-a" "a44f181de8bfdad9e5554e20a19806a5d2a3a02177dc51cb152d1f64e93da12b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a44f181de8bfdad9e5554e20a19806a5d2a3a02177dc51cb152d1f64e93da12b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a44f181de8bfdad9e5554e20a19806a5d2a3a02177dc51cb152d1f64e93da12b", kill_on_drop: false }`
[INFO] [stdout] a44f181de8bfdad9e5554e20a19806a5d2a3a02177dc51cb152d1f64e93da12b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+f17e3a389e192f83fe27a581774a9d1dbb8e565b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6bade597c74e1a86939d1d45a6cc648ae4144cfd110ae518289cc98fb26548fc
[INFO] running `Command { std: "docker" "start" "-a" "6bade597c74e1a86939d1d45a6cc648ae4144cfd110ae518289cc98fb26548fc", kill_on_drop: false }`
[INFO] [stderr]     Checking web_app v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `status` is never read
[INFO] [stdout]  --> src/to_do/structs/base.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Base {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 5 |     pub title: String,
[INFO] [stdout] 6 |     pub status: TaskStatus
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `stringify` is never used
[INFO] [stdout]  --> src/to_do/enums.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | impl TaskStatus {
[INFO] [stdout]   | --------------- method in this implementation
[INFO] [stdout] 9 |     pub fn stringify(&self) -> String {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Create` is never used
[INFO] [stdout]  --> src/to_do/traits/create.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait Create {
[INFO] [stdout]   |           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_to_pending` is never used
[INFO] [stdout]  --> src/to_do/traits/edit.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait Edit {
[INFO] [stdout]   |           ---- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 5 |     fn set_to_pending(&self, title: &str) {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `status` is never read
[INFO] [stdout]  --> src/to_do/structs/base.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Base {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 5 |     pub title: String,
[INFO] [stdout] 6 |     pub status: TaskStatus
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `stringify` is never used
[INFO] [stdout]  --> src/to_do/enums.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | impl TaskStatus {
[INFO] [stdout]   | --------------- method in this implementation
[INFO] [stdout] 9 |     pub fn stringify(&self) -> String {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Create` is never used
[INFO] [stdout]  --> src/to_do/traits/create.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait Create {
[INFO] [stdout]   |           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_to_pending` is never used
[INFO] [stdout]  --> src/to_do/traits/edit.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait Edit {
[INFO] [stdout]   |           ---- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 5 |     fn set_to_pending(&self, title: &str) {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "6bade597c74e1a86939d1d45a6cc648ae4144cfd110ae518289cc98fb26548fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bade597c74e1a86939d1d45a6cc648ae4144cfd110ae518289cc98fb26548fc", kill_on_drop: false }`
[INFO] [stdout] 6bade597c74e1a86939d1d45a6cc648ae4144cfd110ae518289cc98fb26548fc