[INFO] fetching crate ushcn 0.2.5...
[INFO] building ushcn-0.2.5 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate ushcn 0.2.5 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate ushcn 0.2.5
[INFO] finished tweaking crates.io crate ushcn 0.2.5
[INFO] tweaked toml for crates.io crate ushcn 0.2.5 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ushcn 0.2.5 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 ushcn 0.2.5 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 }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 639f1c4be7da62c6dd9538dbcb658a8b97e42f625e50fb264d5e1b6a098e1880
[INFO] running `Command { std: "docker" "start" "-a" "639f1c4be7da62c6dd9538dbcb658a8b97e42f625e50fb264d5e1b6a098e1880", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "639f1c4be7da62c6dd9538dbcb658a8b97e42f625e50fb264d5e1b6a098e1880", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "639f1c4be7da62c6dd9538dbcb658a8b97e42f625e50fb264d5e1b6a098e1880", kill_on_drop: false }`
[INFO] [stdout] 639f1c4be7da62c6dd9538dbcb658a8b97e42f625e50fb264d5e1b6a098e1880
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] f1eb6c287acea2a5b204811e7d15d13bbdbe0319e31caab99f42a02205441f8a
[INFO] running `Command { std: "docker" "start" "-a" "f1eb6c287acea2a5b204811e7d15d13bbdbe0319e31caab99f42a02205441f8a", kill_on_drop: false }`
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[INFO] [stderr]    Compiling ushcn v0.2.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `dataset_to_string` is never used
[INFO] [stdout]   --> src/cli/command/daily.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn dataset_to_string(dataset: &Dataset) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `month` is never read
[INFO] [stdout]   --> src/reading/monthly.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct MonthlyReading {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub month: Option<u16>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MonthlyReading` 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 3m 32s
[INFO] running `Command { std: "docker" "inspect" "f1eb6c287acea2a5b204811e7d15d13bbdbe0319e31caab99f42a02205441f8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1eb6c287acea2a5b204811e7d15d13bbdbe0319e31caab99f42a02205441f8a", kill_on_drop: false }`
[INFO] [stdout] f1eb6c287acea2a5b204811e7d15d13bbdbe0319e31caab99f42a02205441f8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 526b6a491f5be031b6076581ae7dcf7115da5f2c6c49b40bd43ef3738b99efea
[INFO] running `Command { std: "docker" "start" "-a" "526b6a491f5be031b6076581ae7dcf7115da5f2c6c49b40bd43ef3738b99efea", kill_on_drop: false }`
[INFO] [stderr]    Compiling ushcn v0.2.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `dataset_to_string` is never used
[INFO] [stdout]   --> src/cli/command/daily.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn dataset_to_string(dataset: &Dataset) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `month` is never read
[INFO] [stdout]   --> src/reading/monthly.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct MonthlyReading {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub month: Option<u16>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MonthlyReading` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 6.64s
[INFO] running `Command { std: "docker" "inspect" "526b6a491f5be031b6076581ae7dcf7115da5f2c6c49b40bd43ef3738b99efea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "526b6a491f5be031b6076581ae7dcf7115da5f2c6c49b40bd43ef3738b99efea", kill_on_drop: false }`
[INFO] [stdout] 526b6a491f5be031b6076581ae7dcf7115da5f2c6c49b40bd43ef3738b99efea