[INFO] fetching crate serialstudio 0.1.1...
[INFO] building serialstudio-0.1.1 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate serialstudio 0.1.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate serialstudio 0.1.1
[INFO] finished tweaking crates.io crate serialstudio 0.1.1
[INFO] tweaked toml for crates.io crate serialstudio 0.1.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate serialstudio 0.1.1 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate serialstudio 0.1.1 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] efa5546927658a05ce5669088ee6502ff8ab63388701925f1c87e166ada25794
[INFO] running `Command { std: "docker" "start" "-a" "efa5546927658a05ce5669088ee6502ff8ab63388701925f1c87e166ada25794", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "efa5546927658a05ce5669088ee6502ff8ab63388701925f1c87e166ada25794", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efa5546927658a05ce5669088ee6502ff8ab63388701925f1c87e166ada25794", kill_on_drop: false }`
[INFO] [stdout] efa5546927658a05ce5669088ee6502ff8ab63388701925f1c87e166ada25794
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f391ae093e574ae882d0a3277072a996bebf2cc25b44597320a955e7a0749f1
[INFO] running `Command { std: "docker" "start" "-a" "6f391ae093e574ae882d0a3277072a996bebf2cc25b44597320a955e7a0749f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.70
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling serialstudio v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `get_group` is never used
[INFO] [stdout]  --> src/friendly.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | trait Widget {
[INFO] [stdout]   |       ------ method in this trait
[INFO] [stdout] 8 |     fn get_group(&self) -> DataGroup;
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `graph` are never read
[INFO] [stdout]   --> src/friendly.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct MapWidget {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 15 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 16 |     graph: bool,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `widgets` are never read
[INFO] [stdout]   --> src/friendly.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub struct Dashboard {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 63 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 64 |     widgets: Vec<Box<dyn Widget>>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.43s
[INFO] running `Command { std: "docker" "inspect" "6f391ae093e574ae882d0a3277072a996bebf2cc25b44597320a955e7a0749f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f391ae093e574ae882d0a3277072a996bebf2cc25b44597320a955e7a0749f1", kill_on_drop: false }`
[INFO] [stdout] 6f391ae093e574ae882d0a3277072a996bebf2cc25b44597320a955e7a0749f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 365d6542572344f3935f19809891befb5d51f3530b432e7780a16564d13ba90e
[INFO] running `Command { std: "docker" "start" "-a" "365d6542572344f3935f19809891befb5d51f3530b432e7780a16564d13ba90e", kill_on_drop: false }`
[INFO] [stderr]    Compiling serialstudio v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `get_group` is never used
[INFO] [stdout]  --> src/friendly.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | trait Widget {
[INFO] [stdout]   |       ------ method in this trait
[INFO] [stdout] 8 |     fn get_group(&self) -> DataGroup;
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `graph` are never read
[INFO] [stdout]   --> src/friendly.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct MapWidget {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 15 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 16 |     graph: bool,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `widgets` are never read
[INFO] [stdout]   --> src/friendly.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub struct Dashboard {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 63 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 64 |     widgets: Vec<Box<dyn Widget>>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `WidgetSubType`
[INFO] [stdout]  --> examples/random.rs:3:48
[INFO] [stdout]   |
[INFO] [stdout] 3 |     data::{DataGroup, DataSet, TelemetryFrame, WidgetSubType},
[INFO] [stdout]   |                                                ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_group` is never used
[INFO] [stdout]  --> src/friendly.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | trait Widget {
[INFO] [stdout]   |       ------ method in this trait
[INFO] [stdout] 8 |     fn get_group(&self) -> DataGroup;
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `graph` are never read
[INFO] [stdout]   --> src/friendly.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct MapWidget {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 15 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 16 |     graph: bool,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `widgets` are never read
[INFO] [stdout]   --> src/friendly.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub struct Dashboard {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 63 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 64 |     widgets: Vec<Box<dyn Widget>>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "365d6542572344f3935f19809891befb5d51f3530b432e7780a16564d13ba90e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "365d6542572344f3935f19809891befb5d51f3530b432e7780a16564d13ba90e", kill_on_drop: false }`
[INFO] [stdout] 365d6542572344f3935f19809891befb5d51f3530b432e7780a16564d13ba90e
