[INFO] fetching crate poloto-chrono 0.4.0...
[INFO] checking poloto-chrono-0.4.0 against master#5ad98b4026d5172f27615b105658bc8bfd677be8 for pr-129422
[INFO] extracting crate poloto-chrono 0.4.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate poloto-chrono 0.4.0 on toolchain 5ad98b4026d5172f27615b105658bc8bfd677be8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5ad98b4026d5172f27615b105658bc8bfd677be8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate poloto-chrono 0.4.0
[INFO] finished tweaking crates.io crate poloto-chrono 0.4.0
[INFO] tweaked toml for crates.io crate poloto-chrono 0.4.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate poloto-chrono 0.4.0 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" "+5ad98b4026d5172f27615b105658bc8bfd677be8" "fetch" "--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]  Downloading crates ...
[INFO] [stderr]   Downloaded poloto v19.1.0
[INFO] [stderr]   Downloaded iana-time-zone v0.1.57
[INFO] [stderr]   Downloaded tagu v0.1.0
[INFO] [stderr]   Downloaded log v0.4.19
[INFO] [stderr]   Downloaded chrono v0.4.26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+5ad98b4026d5172f27615b105658bc8bfd677be8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 010c13388fab7516180a374faa8b57d1fe7ad0f86648b7efe142db01e77eb6e1
[INFO] running `Command { std: "docker" "start" "-a" "010c13388fab7516180a374faa8b57d1fe7ad0f86648b7efe142db01e77eb6e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "010c13388fab7516180a374faa8b57d1fe7ad0f86648b7efe142db01e77eb6e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "010c13388fab7516180a374faa8b57d1fe7ad0f86648b7efe142db01e77eb6e1", kill_on_drop: false }`
[INFO] [stdout] 010c13388fab7516180a374faa8b57d1fe7ad0f86648b7efe142db01e77eb6e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+5ad98b4026d5172f27615b105658bc8bfd677be8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4e9b67d78a2d758b85a5036b52ad62b712058756564fb69ed218b271e626e921
[INFO] running `Command { std: "docker" "start" "-a" "4e9b67d78a2d758b85a5036b52ad62b712058756564fb69ed218b271e626e921", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking iana-time-zone v0.1.57
[INFO] [stderr]     Checking tagu v0.1.0
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking poloto v19.1.0
[INFO] [stderr]     Checking chrono v0.4.26
[INFO] [stderr]     Checking poloto-chrono v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `chosen_tick` is never read
[INFO] [stdout]   --> src/tick_finder.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct Candidate {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub chosen_tick: i64,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Candidate` 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `chosen_tick` is never read
[INFO] [stdout]   --> src/tick_finder.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct Candidate {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub chosen_tick: i64,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Candidate` 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.97s
[INFO] running `Command { std: "docker" "inspect" "4e9b67d78a2d758b85a5036b52ad62b712058756564fb69ed218b271e626e921", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e9b67d78a2d758b85a5036b52ad62b712058756564fb69ed218b271e626e921", kill_on_drop: false }`
[INFO] [stdout] 4e9b67d78a2d758b85a5036b52ad62b712058756564fb69ed218b271e626e921