[INFO] fetching crate poloto-chrono 0.4.0...
[INFO] building poloto-chrono-0.4.0 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate poloto-chrono 0.4.0 into /workspace/builds/worker-2-tc1/source
[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-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate poloto-chrono 0.4.0 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "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 unicode-ident v1.0.10
[INFO] [stderr]   Downloaded tagu v0.1.0
[INFO] [stderr]   Downloaded poloto v19.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 514383ec9b3c44baf6aceaaab3ce350a83b3d562c558f733ef56c4e18e3cdf10
[INFO] running `Command { std: "docker" "start" "-a" "514383ec9b3c44baf6aceaaab3ce350a83b3d562c558f733ef56c4e18e3cdf10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "514383ec9b3c44baf6aceaaab3ce350a83b3d562c558f733ef56c4e18e3cdf10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "514383ec9b3c44baf6aceaaab3ce350a83b3d562c558f733ef56c4e18e3cdf10", kill_on_drop: false }`
[INFO] [stdout] 514383ec9b3c44baf6aceaaab3ce350a83b3d562c558f733ef56c4e18e3cdf10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f5703b5c6fa563617cd2a1016502dd7e4dc69c841f4f4cfb47e6410f53c43d9
[INFO] running `Command { std: "docker" "start" "-a" "3f5703b5c6fa563617cd2a1016502dd7e4dc69c841f4f4cfb47e6410f53c43d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling iana-time-zone v0.1.57
[INFO] [stderr]    Compiling tagu v0.1.0
[INFO] [stderr]    Compiling poloto v19.1.0
[INFO] [stderr]    Compiling time v0.1.45
[INFO] [stderr]    Compiling chrono v0.4.26
[INFO] [stderr]    Compiling 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.00s
[INFO] running `Command { std: "docker" "inspect" "3f5703b5c6fa563617cd2a1016502dd7e4dc69c841f4f4cfb47e6410f53c43d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f5703b5c6fa563617cd2a1016502dd7e4dc69c841f4f4cfb47e6410f53c43d9", kill_on_drop: false }`
[INFO] [stdout] 3f5703b5c6fa563617cd2a1016502dd7e4dc69c841f4f4cfb47e6410f53c43d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b653bf43996e17e07c7dc5977b88e57912ca4a06810c1c4eee4bf0251e9305f
[INFO] running `Command { std: "docker" "start" "-a" "9b653bf43996e17e07c7dc5977b88e57912ca4a06810c1c4eee4bf0251e9305f", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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)]` (part of `#[warn(unused)]`) on by default
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "9b653bf43996e17e07c7dc5977b88e57912ca4a06810c1c4eee4bf0251e9305f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b653bf43996e17e07c7dc5977b88e57912ca4a06810c1c4eee4bf0251e9305f", kill_on_drop: false }`
[INFO] [stdout] 9b653bf43996e17e07c7dc5977b88e57912ca4a06810c1c4eee4bf0251e9305f