[INFO] fetching crate standard_deviation 0.1.1...
[INFO] checking standard_deviation-0.1.1 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate standard_deviation 0.1.1 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate standard_deviation 0.1.1
[INFO] finished tweaking crates.io crate standard_deviation 0.1.1
[INFO] tweaked toml for crates.io crate standard_deviation 0.1.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate standard_deviation 0.1.1 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate standard_deviation 0.1.1 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8f24331a18a3f54221fad1a76c3a89cebe0d5e7111b5c2e3531b60a4dcaf5d98
[INFO] running `Command { std: "docker" "start" "-a" "8f24331a18a3f54221fad1a76c3a89cebe0d5e7111b5c2e3531b60a4dcaf5d98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f24331a18a3f54221fad1a76c3a89cebe0d5e7111b5c2e3531b60a4dcaf5d98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f24331a18a3f54221fad1a76c3a89cebe0d5e7111b5c2e3531b60a4dcaf5d98", kill_on_drop: false }`
[INFO] [stdout] 8f24331a18a3f54221fad1a76c3a89cebe0d5e7111b5c2e3531b60a4dcaf5d98
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f25e4b4fb503e071dd2b2ebffca9a89c77dbd8ce903396ef77b86b7b854e65dc
[INFO] running `Command { std: "docker" "start" "-a" "f25e4b4fb503e071dd2b2ebffca9a89c77dbd8ce903396ef77b86b7b854e65dc", kill_on_drop: false }`
[INFO] [stderr]     Checking standard_deviation v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/lib.rs:8:22
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::{io::{self, Write}, str::FromStr, num::{ParseIntError, ParseFloatError}, process};
[INFO] [stdout]   |                      ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/lib.rs:8:22
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::{io::{self, Write}, str::FromStr, num::{ParseIntError, ParseFloatError}, process};
[INFO] [stdout]   |                      ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "f25e4b4fb503e071dd2b2ebffca9a89c77dbd8ce903396ef77b86b7b854e65dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f25e4b4fb503e071dd2b2ebffca9a89c77dbd8ce903396ef77b86b7b854e65dc", kill_on_drop: false }`
[INFO] [stdout] f25e4b4fb503e071dd2b2ebffca9a89c77dbd8ce903396ef77b86b7b854e65dc