[INFO] fetching crate spare 0.0.3...
[INFO] checking spare-0.0.3 against master#2e6fc425411280c658d852813de01c5157255088 for pr-128013
[INFO] extracting crate spare 0.0.3 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate spare 0.0.3 on toolchain 2e6fc425411280c658d852813de01c5157255088
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate spare 0.0.3
[INFO] finished tweaking crates.io crate spare 0.0.3
[INFO] tweaked toml for crates.io crate spare 0.0.3 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 26 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded texting v0.0.7
[INFO] [stderr]   Downloaded aryth v0.0.11
[INFO] [stderr]   Downloaded palett v0.0.8
[INFO] [stderr]   Downloaded veho v0.0.20
[INFO] [stderr]   Downloaded vte v0.13.0
[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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5e88ffd98020d819ba63423fcba0142d9ffeb743a06d6073f4a0f1ec51fac0cd
[INFO] running `Command { std: "docker" "start" "-a" "5e88ffd98020d819ba63423fcba0142d9ffeb743a06d6073f4a0f1ec51fac0cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e88ffd98020d819ba63423fcba0142d9ffeb743a06d6073f4a0f1ec51fac0cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e88ffd98020d819ba63423fcba0142d9ffeb743a06d6073f4a0f1ec51fac0cd", kill_on_drop: false }`
[INFO] [stdout] 5e88ffd98020d819ba63423fcba0142d9ffeb743a06d6073f4a0f1ec51fac0cd
[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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a9dfd6884317e970a14ced7b6650a73fe36255bd86a6d7b059f954ee10718b1
[INFO] running `Command { std: "docker" "start" "-a" "7a9dfd6884317e970a14ced7b6650a73fe36255bd86a6d7b059f954ee10718b1", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking utf8parse v0.2.2
[INFO] [stderr]     Checking veho v0.0.20
[INFO] [stderr]    Compiling vte_generate_state_changes v0.1.2
[INFO] [stderr]     Checking vte v0.13.0
[INFO] [stderr]     Checking texting v0.0.7
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]     Checking aryth v0.0.11
[INFO] [stderr]     Checking palett v0.0.8
[INFO] [stderr]     Checking spare v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `Joiners` is never used
[INFO] [stdout]  --> src/deco/vector/joiners.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait Joiners: Iterator where
[INFO] [stdout]   |           ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `max_len` is never used
[INFO] [stdout]   --> src/padder/util.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn max_len<T: AsRef<str>>(col: &Vec<T>, ansi: bool) -> usize
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vec`
[INFO] [stdout]   --> src/padder/vector.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let vec = init(12, |i| pow(2, i).to_string());
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_vec`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Joiners` is never used
[INFO] [stdout]  --> src/deco/vector/joiners.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait Joiners: Iterator where
[INFO] [stdout]   |           ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Formatter`
[INFO] [stdout]  --> tests/alpha/display_to_number_test.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::{Display, Formatter};
[INFO] [stdout]   |                         ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::num::ParseFloatError`
[INFO] [stdout]  --> tests/alpha/display_to_number_test.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::num::ParseFloatError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.49s
[INFO] running `Command { std: "docker" "inspect" "7a9dfd6884317e970a14ced7b6650a73fe36255bd86a6d7b059f954ee10718b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a9dfd6884317e970a14ced7b6650a73fe36255bd86a6d7b059f954ee10718b1", kill_on_drop: false }`
[INFO] [stdout] 7a9dfd6884317e970a14ced7b6650a73fe36255bd86a6d7b059f954ee10718b1