[INFO] fetching crate rtable 0.2.1...
[INFO] checking rtable-0.2.1 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate rtable 0.2.1 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate rtable 0.2.1 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rtable 0.2.1
[INFO] finished tweaking crates.io crate rtable 0.2.1
[INFO] tweaked toml for crates.io crate rtable 0.2.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c29cdb3525e2fa8a0b3bb5aca69edf619c245d06904fb93e1b9f7d1ea6081d1a
[INFO] running `Command { std: "docker" "start" "-a" "c29cdb3525e2fa8a0b3bb5aca69edf619c245d06904fb93e1b9f7d1ea6081d1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c29cdb3525e2fa8a0b3bb5aca69edf619c245d06904fb93e1b9f7d1ea6081d1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c29cdb3525e2fa8a0b3bb5aca69edf619c245d06904fb93e1b9f7d1ea6081d1a", kill_on_drop: false }`
[INFO] [stdout] c29cdb3525e2fa8a0b3bb5aca69edf619c245d06904fb93e1b9f7d1ea6081d1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 180f089414f1e405a529863248d6a738d5eeeb13491b634ff22c2839fe9a8558
[INFO] running `Command { std: "docker" "start" "-a" "180f089414f1e405a529863248d6a738d5eeeb13491b634ff22c2839fe9a8558", kill_on_drop: false }`
[INFO] [stderr]     Checking rtable v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/prefix.rs:470:28
[INFO] [stdout]     |
[INFO] [stdout] 470 |         fmt.write_str(self.description())
[INFO] [stdout]     |                            ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/prefix.rs:470:28
[INFO] [stdout]     |
[INFO] [stdout] 470 |         fmt.write_str(self.description())
[INFO] [stdout]     |                            ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p6`
[INFO] [stdout]    --> src/prefix.rs:566:13
[INFO] [stdout]     |
[INFO] [stdout] 566 |         let p6 = Prefix::<Ipv4Addr>::from_common(&p4, &p5);
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_p6`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]    --> src/prefix.rs:592:42
[INFO] [stdout]     |
[INFO] [stdout] 592 |         let v: Vec<_> = map.iter().map(|(k, v)| v).collect();
[INFO] [stdout]     |                                          ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "180f089414f1e405a529863248d6a738d5eeeb13491b634ff22c2839fe9a8558", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "180f089414f1e405a529863248d6a738d5eeeb13491b634ff22c2839fe9a8558", kill_on_drop: false }`
[INFO] [stdout] 180f089414f1e405a529863248d6a738d5eeeb13491b634ff22c2839fe9a8558