[INFO] fetching crate yumrepo 0.0.1...
[INFO] checking yumrepo-0.0.1 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate yumrepo 0.0.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate yumrepo 0.0.1
[INFO] finished tweaking crates.io crate yumrepo 0.0.1
[INFO] tweaked toml for crates.io crate yumrepo 0.0.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate yumrepo 0.0.1 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 15 packages to latest compatible versions
[INFO] [stderr]       Adding quick-xml v0.17.2 (available: v0.38.3)
[INFO] [stderr]       Adding serde_yaml v0.8.26 (available: v0.9.34+deprecated)
[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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 4f908caf6de43cfb5b061527c3d3cc7fc7965cf53734a5105d3990374751b393
[INFO] running `Command { std: "docker" "start" "-a" "4f908caf6de43cfb5b061527c3d3cc7fc7965cf53734a5105d3990374751b393", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f908caf6de43cfb5b061527c3d3cc7fc7965cf53734a5105d3990374751b393", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f908caf6de43cfb5b061527c3d3cc7fc7965cf53734a5105d3990374751b393", kill_on_drop: false }`
[INFO] [stdout] 4f908caf6de43cfb5b061527c3d3cc7fc7965cf53734a5105d3990374751b393
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] bdd033cf1344a13f3f3454aed137acdf0db996a434ddb412eddec43ff09b2c79
[INFO] running `Command { std: "docker" "start" "-a" "bdd033cf1344a13f3f3454aed137acdf0db996a434ddb412eddec43ff09b2c79", kill_on_drop: false }`
[INFO] [stderr]     Checking quick-xml v0.17.2
[INFO] [stderr]     Checking serde_yaml v0.8.26
[INFO] [stderr]     Checking yumrepo v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `BufReader`, `Cursor`, and `Read`
[INFO] [stdout]  --> src/prelude.rs:1:39
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub use std::{*, collections::*, io::{Read, BufReader, Cursor}};
[INFO] [stdout]   |                                       ^^^^  ^^^^^^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `de::DeserializeOwned`
[INFO] [stdout]  --> src/prelude.rs:2:41
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use serde::{Deserialize, Serialize, de::DeserializeOwned};
[INFO] [stdout]   |                                         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufReader`, `Cursor`, and `Read`
[INFO] [stdout]  --> src/prelude.rs:1:39
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub use std::{*, collections::*, io::{Read, BufReader, Cursor}};
[INFO] [stdout]   |                                       ^^^^  ^^^^^^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `de::DeserializeOwned`
[INFO] [stdout]  --> src/prelude.rs:2:41
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use serde::{Deserialize, Serialize, de::DeserializeOwned};
[INFO] [stdout]   |                                         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.37s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: quick-xml v0.17.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "bdd033cf1344a13f3f3454aed137acdf0db996a434ddb412eddec43ff09b2c79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdd033cf1344a13f3f3454aed137acdf0db996a434ddb412eddec43ff09b2c79", kill_on_drop: false }`
[INFO] [stdout] bdd033cf1344a13f3f3454aed137acdf0db996a434ddb412eddec43ff09b2c79