[INFO] fetching crate spare 0.0.3...
[INFO] building spare-0.0.3 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate spare 0.0.3 into /workspace/builds/worker-7-tc1/source
[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-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate spare 0.0.3 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 20 packages to latest compatible versions
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded aryth v0.0.11
[INFO] [stderr]   Downloaded texting v0.0.7
[INFO] [stderr]   Downloaded palett v0.0.8
[INFO] [stderr]   Downloaded veho v0.0.20
[INFO] [stderr]   Downloaded vte v0.15.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 56e874c4debb9e601daa4d971e4bf0614cf17986de3bb8f4260831383478dc27
[INFO] running `Command { std: "docker" "start" "-a" "56e874c4debb9e601daa4d971e4bf0614cf17986de3bb8f4260831383478dc27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "56e874c4debb9e601daa4d971e4bf0614cf17986de3bb8f4260831383478dc27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56e874c4debb9e601daa4d971e4bf0614cf17986de3bb8f4260831383478dc27", kill_on_drop: false }`
[INFO] [stdout] 56e874c4debb9e601daa4d971e4bf0614cf17986de3bb8f4260831383478dc27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 55f32f32879713c1e859ddcb6ff7e432be4016a44f0f8af3f07a6dbc86f46c05
[INFO] running `Command { std: "docker" "start" "-a" "55f32f32879713c1e859ddcb6ff7e432be4016a44f0f8af3f07a6dbc86f46c05", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling veho v0.0.20
[INFO] [stderr]    Compiling vte v0.15.0
[INFO] [stderr]    Compiling texting v0.0.7
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling num v0.4.3
[INFO] [stderr]    Compiling aryth v0.0.11
[INFO] [stderr]    Compiling palett v0.0.8
[INFO] [stderr]    Compiling 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)]` (part of `#[warn(unused)]`) 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.20s
[INFO] running `Command { std: "docker" "inspect" "55f32f32879713c1e859ddcb6ff7e432be4016a44f0f8af3f07a6dbc86f46c05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55f32f32879713c1e859ddcb6ff7e432be4016a44f0f8af3f07a6dbc86f46c05", kill_on_drop: false }`
[INFO] [stdout] 55f32f32879713c1e859ddcb6ff7e432be4016a44f0f8af3f07a6dbc86f46c05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 0c6ef943204e41b1da237e34e64482070faaf0f5205b7094aae7e6142b0ded8a
[INFO] running `Command { std: "docker" "start" "-a" "0c6ef943204e41b1da237e34e64482070faaf0f5205b7094aae7e6142b0ded8a", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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)]` (part of `#[warn(unused)]`) 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: 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)]` (part of `#[warn(unused)]`) 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: 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.87s
[INFO] running `Command { std: "docker" "inspect" "0c6ef943204e41b1da237e34e64482070faaf0f5205b7094aae7e6142b0ded8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c6ef943204e41b1da237e34e64482070faaf0f5205b7094aae7e6142b0ded8a", kill_on_drop: false }`
[INFO] [stdout] 0c6ef943204e41b1da237e34e64482070faaf0f5205b7094aae7e6142b0ded8a