[INFO] fetching crate serialstudio 0.1.1...
[INFO] checking serialstudio-0.1.1 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] extracting crate serialstudio 0.1.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate serialstudio 0.1.1 on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-tc1/source/Cargo.toml
[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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 67995dc4942a05f9cdc8bb3e70dfe9b16e1a4a428300e47e129c96d05ca00cb1
[INFO] running `Command { std: "docker" "start" "-a" "67995dc4942a05f9cdc8bb3e70dfe9b16e1a4a428300e47e129c96d05ca00cb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "67995dc4942a05f9cdc8bb3e70dfe9b16e1a4a428300e47e129c96d05ca00cb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67995dc4942a05f9cdc8bb3e70dfe9b16e1a4a428300e47e129c96d05ca00cb1", kill_on_drop: false }`
[INFO] [stdout] 67995dc4942a05f9cdc8bb3e70dfe9b16e1a4a428300e47e129c96d05ca00cb1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1312f162d88db01ae0d4de2ec31871ad39bf7840194d46304542e80c39d4c5bc
[INFO] running `Command { std: "docker" "start" "-a" "1312f162d88db01ae0d4de2ec31871ad39bf7840194d46304542e80c39d4c5bc", 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]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking 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)]` 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: 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)]` 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: 3 warnings emitted
[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: 3 warnings emitted
[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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.23s
[INFO] running `Command { std: "docker" "inspect" "1312f162d88db01ae0d4de2ec31871ad39bf7840194d46304542e80c39d4c5bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1312f162d88db01ae0d4de2ec31871ad39bf7840194d46304542e80c39d4c5bc", kill_on_drop: false }`
[INFO] [stdout] 1312f162d88db01ae0d4de2ec31871ad39bf7840194d46304542e80c39d4c5bc
[INFO] checking serialstudio-0.1.1 against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] extracting crate serialstudio 0.1.1 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate serialstudio 0.1.1 on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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] 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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f73e2cf7a01a2df02d6477de2298255de9143989910a5e8f7493cb22ae974347
[INFO] running `Command { std: "docker" "start" "-a" "f73e2cf7a01a2df02d6477de2298255de9143989910a5e8f7493cb22ae974347", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f73e2cf7a01a2df02d6477de2298255de9143989910a5e8f7493cb22ae974347", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f73e2cf7a01a2df02d6477de2298255de9143989910a5e8f7493cb22ae974347", kill_on_drop: false }`
[INFO] [stdout] f73e2cf7a01a2df02d6477de2298255de9143989910a5e8f7493cb22ae974347
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 893e464a95317637ea6eb7c25193f3271832d37542b1d734ef817bad2c799e9f
[INFO] running `Command { std: "docker" "start" "-a" "893e464a95317637ea6eb7c25193f3271832d37542b1d734ef817bad2c799e9f", 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 ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking 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)]` 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: 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)]` 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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.69s
[INFO] running `Command { std: "docker" "inspect" "893e464a95317637ea6eb7c25193f3271832d37542b1d734ef817bad2c799e9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "893e464a95317637ea6eb7c25193f3271832d37542b1d734ef817bad2c799e9f", kill_on_drop: false }`
[INFO] [stdout] 893e464a95317637ea6eb7c25193f3271832d37542b1d734ef817bad2c799e9f