[INFO] fetching crate synchronizer 0.1.1...
[INFO] checking synchronizer-0.1.1 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate synchronizer 0.1.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate synchronizer 0.1.1
[INFO] finished tweaking crates.io crate synchronizer 0.1.1
[INFO] tweaked toml for crates.io crate synchronizer 0.1.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate synchronizer 0.1.1 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate synchronizer 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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 182d39622926243054148324dffed85be1a62344e92494239d8c17ce416045f7
[INFO] running `Command { std: "docker" "start" "-a" "182d39622926243054148324dffed85be1a62344e92494239d8c17ce416045f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "182d39622926243054148324dffed85be1a62344e92494239d8c17ce416045f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "182d39622926243054148324dffed85be1a62344e92494239d8c17ce416045f7", kill_on_drop: false }`
[INFO] [stdout] 182d39622926243054148324dffed85be1a62344e92494239d8c17ce416045f7
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da27c76cff96077f95b11d454a768c3ffd9598dd5ba8f9b39ee9bc579af32916
[INFO] running `Command { std: "docker" "start" "-a" "da27c76cff96077f95b11d454a768c3ffd9598dd5ba8f9b39ee9bc579af32916", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]     Checking unsafe-libyaml v0.2.11
[INFO] [stderr]     Checking indexmap v2.9.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking serde_yaml v0.9.34+deprecated
[INFO] [stderr]     Checking synchronizer v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variants `NoHostsConfigured` and `DirectoryDoesntExist` are never constructed
[INFO] [stdout]  --> src/error.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum SyncError {
[INFO] [stdout]   |          --------- variants in this enum
[INFO] [stdout] 4 |     NoHostsConfigured,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 5 |     InvalidIPv4,
[INFO] [stdout] 6 |     DirectoryDoesntExist,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Synchronizer` is never constructed
[INFO] [stdout]   --> src/logic.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Synchronizer {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/logic.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl Synchronizer {
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] 34 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ChecksError` is never used
[INFO] [stdout]  --> src/checks.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum ChecksError {
[INFO] [stdout]   |          ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Dependencies` is never constructed
[INFO] [stdout]   --> src/checks.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct Dependencies;
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `whicher`, `installed`, and `container` are never used
[INFO] [stdout]   --> src/checks.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | impl Dependencies {
[INFO] [stdout]    | ----------------- associated items in this implementation
[INFO] [stdout] 25 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn whicher(bin: &str) -> Result<bool, ChecksError> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub fn installed(&self) -> Result<bool, ChecksError> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |     pub fn container(&self) -> Result<bool, ChecksError> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `SyncError` is never used
[INFO] [stdout]  --> src/error.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum SyncError {
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Backend` is never used
[INFO] [stdout]  --> src/logic.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub enum Backend {
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Synchronizer` is never constructed
[INFO] [stdout]   --> src/logic.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Synchronizer {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/logic.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl Synchronizer {
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] 34 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ip` is never used
[INFO] [stdout]   --> src/logic.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn ip(addr: &str) -> Result<Ipv4Addr, SyncError> {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.02s
[INFO] running `Command { std: "docker" "inspect" "da27c76cff96077f95b11d454a768c3ffd9598dd5ba8f9b39ee9bc579af32916", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da27c76cff96077f95b11d454a768c3ffd9598dd5ba8f9b39ee9bc579af32916", kill_on_drop: false }`
[INFO] [stdout] da27c76cff96077f95b11d454a768c3ffd9598dd5ba8f9b39ee9bc579af32916