[INFO] fetching crate alternate 0.0.0...
[INFO] checking alternate-0.0.0 against master#3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777 for pr-132289
[INFO] extracting crate alternate 0.0.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate alternate 0.0.0 on toolchain 3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7-tc1/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-7-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate alternate 0.0.0
[INFO] finished tweaking crates.io crate alternate 0.0.0
[INFO] tweaked toml for crates.io crate alternate 0.0.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate alternate 0.0.0 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" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 10d81b5d9ab75a6b501d3475947428fc881d8e5bc00474be9af746869e685dbe
[INFO] running `Command { std: "docker" "start" "-a" "10d81b5d9ab75a6b501d3475947428fc881d8e5bc00474be9af746869e685dbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10d81b5d9ab75a6b501d3475947428fc881d8e5bc00474be9af746869e685dbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10d81b5d9ab75a6b501d3475947428fc881d8e5bc00474be9af746869e685dbe", kill_on_drop: false }`
[INFO] [stdout] 10d81b5d9ab75a6b501d3475947428fc881d8e5bc00474be9af746869e685dbe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ed100df050ae969775d564f9e775f5287a898bf2ec96230abdd1280f035ea5a
[INFO] running `Command { std: "docker" "start" "-a" "0ed100df050ae969775d564f9e775f5287a898bf2ec96230abdd1280f035ea5a", kill_on_drop: false }`
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[INFO] [stderr]     Checking once_cell v1.19.0
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[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]     Checking itoa v1.0.11
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[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking allocator-api2 v0.2.18
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[INFO] [stderr]     Checking arrayvec v0.7.4
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[INFO] [stderr]     Checking deranged v0.3.11
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[INFO] [stderr]    Compiling syn v2.0.60
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]    Compiling vte_generate_state_changes v0.1.1
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[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking nix v0.25.1
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[INFO] [stderr]     Checking serial v0.4.0
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking flume v0.11.0
[INFO] [stderr]     Checking crossterm v0.27.0
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[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]    Compiling thiserror-impl v1.0.59
[INFO] [stderr]    Compiling strum_macros v0.26.2
[INFO] [stderr]    Compiling stability v0.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.198
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
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[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking filedescriptor v0.8.2
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[INFO] [stderr]     Checking portable-pty v0.8.1
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[INFO] [stderr]     Checking tui-term v0.1.10
[INFO] [stderr]     Checking callee v0.1.4
[INFO] [stderr]     Checking alternate v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Backend`
[INFO] [stdout]   --> src/tui.rs:11:15
[INFO] [stdout]    |
[INFO] [stdout] 11 |     backend::{Backend, CrosstermBackend},
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Backend`
[INFO] [stdout]   --> src/tui.rs:11:15
[INFO] [stdout]    |
[INFO] [stdout] 11 |     backend::{Backend, CrosstermBackend},
[INFO] [stdout]    |               ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cmd` is never constructed
[INFO] [stdout]   --> src/cmd.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct Cmd {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cmd` is never constructed
[INFO] [stdout]   --> src/cmd.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct Cmd {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/cmd.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     Render(usize),
[INFO] [stdout]    |     ------ ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CmdMsg` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 28 |     Render(()),
[INFO] [stdout]    |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/cmd.rs:30:10
[INFO] [stdout]    |
[INFO] [stdout] 30 |     Kill(usize),
[INFO] [stdout]    |     ---- ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CmdMsg` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 30 |     Kill(()),
[INFO] [stdout]    |          ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/cmd.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     Render(usize),
[INFO] [stdout]    |     ------ ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CmdMsg` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 28 |     Render(()),
[INFO] [stdout]    |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/cmd.rs:30:10
[INFO] [stdout]    |
[INFO] [stdout] 30 |     Kill(usize),
[INFO] [stdout]    |     ---- ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CmdMsg` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 30 |     Kill(()),
[INFO] [stdout]    |          ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Input` and `Output` are never constructed
[INFO] [stdout]   --> src/cmd.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub enum CmdMsg {
[INFO] [stdout]    |          ------ variants in this enum
[INFO] [stdout] 27 |     Input(Vec<u8>),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 28 |     Render(usize),
[INFO] [stdout] 29 |     Output(Vec<u8>),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CmdMsg` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `spawn`, `init`, and `tx` are never used
[INFO] [stdout]    --> src/cmd.rs:34:12
[INFO] [stdout]     |
[INFO] [stdout] 33  | impl Cmd {
[INFO] [stdout]     | -------- associated items in this implementation
[INFO] [stdout] 34  |     pub fn spawn(
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 86  |     pub fn init(initial_buffer: Vec<u8>) -> Result<Self, AlternateError> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 164 |     pub fn tx(&self) -> flume::Sender<CmdMsg> {
[INFO] [stdout]     |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `MasterPtyWriter` is never used
[INFO] [stdout]    --> src/cmd.rs:185:7
[INFO] [stdout]     |
[INFO] [stdout] 185 | trait MasterPtyWriter: MasterPty + std::io::Write {}
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Input` and `Output` are never constructed
[INFO] [stdout]   --> src/cmd.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub enum CmdMsg {
[INFO] [stdout]    |          ------ variants in this enum
[INFO] [stdout] 27 |     Input(Vec<u8>),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 28 |     Render(usize),
[INFO] [stdout] 29 |     Output(Vec<u8>),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CmdMsg` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `pid` is never read
[INFO] [stdout]    --> src/cmd.rs:192:5
[INFO] [stdout]     |
[INFO] [stdout] 190 | pub struct PtyCmd {
[INFO] [stdout]     |            ------ field in this struct
[INFO] [stdout] 191 |     pub vte_parser: Arc<RwLock<vt100::Parser>>,
[INFO] [stdout] 192 |     pid: u32,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Provider` is never used
[INFO] [stdout]  --> src/provider.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum Provider {
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Provider` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `spawn`, `init`, and `tx` are never used
[INFO] [stdout]    --> src/cmd.rs:34:12
[INFO] [stdout]     |
[INFO] [stdout] 33  | impl Cmd {
[INFO] [stdout]     | -------- associated items in this implementation
[INFO] [stdout] 34  |     pub fn spawn(
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 86  |     pub fn init(initial_buffer: Vec<u8>) -> Result<Self, AlternateError> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 164 |     pub fn tx(&self) -> flume::Sender<CmdMsg> {
[INFO] [stdout]     |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `MasterPtyWriter` is never used
[INFO] [stdout]    --> src/cmd.rs:185:7
[INFO] [stdout]     |
[INFO] [stdout] 185 | trait MasterPtyWriter: MasterPty + std::io::Write {}
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `pid` is never read
[INFO] [stdout]    --> src/cmd.rs:192:5
[INFO] [stdout]     |
[INFO] [stdout] 190 | pub struct PtyCmd {
[INFO] [stdout]     |            ------ field in this struct
[INFO] [stdout] 191 |     pub vte_parser: Arc<RwLock<vt100::Parser>>,
[INFO] [stdout] 192 |     pid: u32,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Provider` is never used
[INFO] [stdout]  --> src/provider.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum Provider {
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Provider` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized] target(s) in 7.71s
[INFO] running `Command { std: "docker" "inspect" "0ed100df050ae969775d564f9e775f5287a898bf2ec96230abdd1280f035ea5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ed100df050ae969775d564f9e775f5287a898bf2ec96230abdd1280f035ea5a", kill_on_drop: false }`
[INFO] [stdout] 0ed100df050ae969775d564f9e775f5287a898bf2ec96230abdd1280f035ea5a
