[INFO] cloning repository https://github.com/ATTPC/synchronizer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ATTPC/synchronizer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FATTPC%2Fsynchronizer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FATTPC%2Fsynchronizer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4adf08265660eef1f3d8c39c37d8948fd3672759
[INFO] checking ATTPC/synchronizer against try#173780a87744406b7489b28349c0176f14bb3881 for pr-135841
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FATTPC%2Fsynchronizer" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ATTPC/synchronizer on toolchain 173780a87744406b7489b28349c0176f14bb3881
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+173780a87744406b7489b28349c0176f14bb3881" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ATTPC/synchronizer
[INFO] finished tweaking git repo https://github.com/ATTPC/synchronizer
[INFO] tweaked toml for git repo https://github.com/ATTPC/synchronizer written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ATTPC/synchronizer 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" "+173780a87744406b7489b28349c0176f14bb3881" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] [stdout] 7942692feccd504fb0d84241e4fe8433e8b9c187c33e24b3c4855588087cc564
[INFO] running `Command { std: "docker" "start" "-a" "7942692feccd504fb0d84241e4fe8433e8b9c187c33e24b3c4855588087cc564", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7942692feccd504fb0d84241e4fe8433e8b9c187c33e24b3c4855588087cc564", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7942692feccd504fb0d84241e4fe8433e8b9c187c33e24b3c4855588087cc564", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+173780a87744406b7489b28349c0176f14bb3881" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `eyre`
[INFO] [stdout]  --> src/scalers.rs:5:24
[INFO] [stdout]   |
[INFO] [stdout] 5 | use color_eyre::eyre::{eyre, Result};
[INFO] [stdout]   |                        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `eyre`
[INFO] [stdout]  --> src/scalers.rs:5:24
[INFO] [stdout]   |
[INFO] [stdout] 5 | use color_eyre::eyre::{eyre, Result};
[INFO] [stdout]   |                        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `run_number` and `event` are never read
[INFO] [stdout]   --> src/reader.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub struct MergerEvent {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 45 |     pub run_number: i32,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 46 |     pub event: u64,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MergerEvent` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `merger_path` is never read
[INFO] [stdout]   --> src/reader.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub struct MergerReader {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 54 |     merger_path: PathBuf,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MergerReader` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `sync_path`, `current_path`, and `current_run` are never read
[INFO] [stdout]   --> src/writer.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct SyncWriter {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 16 |     sync_path: PathBuf,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 17 |     current_path: PathBuf,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 18 |     pub current_file: File,
[INFO] [stdout] 19 |     pub current_run: i32,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SyncWriter` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `run_number` and `event` are never read
[INFO] [stdout]   --> src/reader.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub struct MergerEvent {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 45 |     pub run_number: i32,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 46 |     pub event: u64,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MergerEvent` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `merger_path` is never read
[INFO] [stdout]   --> src/reader.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub struct MergerReader {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 54 |     merger_path: PathBuf,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MergerReader` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `sync_path`, `current_path`, and `current_run` are never read
[INFO] [stdout]   --> src/writer.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct SyncWriter {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 16 |     sync_path: PathBuf,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 17 |     current_path: PathBuf,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 18 |     pub current_file: File,
[INFO] [stdout] 19 |     pub current_run: i32,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SyncWriter` 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 + debuginfo] target(s) in 46.85s
[INFO] running `Command { std: "docker" "inspect" "1488a5ff0b07bbf9e3bd9636c8c435cd3df2ad0d030a3b26f77626f23c415a27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1488a5ff0b07bbf9e3bd9636c8c435cd3df2ad0d030a3b26f77626f23c415a27", kill_on_drop: false }`
[INFO] [stdout] 1488a5ff0b07bbf9e3bd9636c8c435cd3df2ad0d030a3b26f77626f23c415a27