[INFO] cloning repository https://github.com/mpm896/rust-filesize-formatter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mpm896/rust-filesize-formatter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmpm896%2Frust-filesize-formatter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmpm896%2Frust-filesize-formatter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a68b65ac3b102a43078e9a87009d64d914fbc831
[INFO] checking mpm896/rust-filesize-formatter against master#1fe72d35998dea48aeecaf7fc07783b0b553f24f for pr-154992-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmpm896%2Frust-filesize-formatter" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mpm896/rust-filesize-formatter
[INFO] finished tweaking git repo https://github.com/mpm896/rust-filesize-formatter
[INFO] tweaked toml for git repo https://github.com/mpm896/rust-filesize-formatter written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mpm896/rust-filesize-formatter on toolchain 1fe72d35998dea48aeecaf7fc07783b0b553f24f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1fe72d35998dea48aeecaf7fc07783b0b553f24f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mpm896/rust-filesize-formatter 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" "+1fe72d35998dea48aeecaf7fc07783b0b553f24f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1fe72d35998dea48aeecaf7fc07783b0b553f24f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9e4ef73719456f27fcdc1b405fcdd040576f1ab3846248f2ded4fcf6dc02a979
[INFO] running `Command { std: "docker" "start" "-a" "9e4ef73719456f27fcdc1b405fcdd040576f1ab3846248f2ded4fcf6dc02a979", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e4ef73719456f27fcdc1b405fcdd040576f1ab3846248f2ded4fcf6dc02a979", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e4ef73719456f27fcdc1b405fcdd040576f1ab3846248f2ded4fcf6dc02a979", kill_on_drop: false }`
[INFO] [stdout] 9e4ef73719456f27fcdc1b405fcdd040576f1ab3846248f2ded4fcf6dc02a979
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1fe72d35998dea48aeecaf7fc07783b0b553f24f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4e05e047fdb108b4cf92c2c8ce70c477e7375133db4b0429697e59e3f8f01fa2
[INFO] running `Command { std: "docker" "start" "-a" "4e05e047fdb108b4cf92c2c8ce70c477e7375133db4b0429697e59e3f8f01fa2", kill_on_drop: false }`
[INFO] [stderr]     Checking file-size-formatter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `fs::File`
[INFO] [stdout]  --> src/main.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{env, fs::File};
[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: `fs::File`
[INFO] [stdout]  --> src/main.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{env, fs::File};
[INFO] [stdout]   |                ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `bytes`, `kilobytes`, `megabytes`, `gigabytes`, and `terabytes` are never read
[INFO] [stdout]  --> src/main.rs:5:3
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Sizes {
[INFO] [stdout]   |        ----- fields in this struct
[INFO] [stdout] 5 |   bytes: String,
[INFO] [stdout]   |   ^^^^^
[INFO] [stdout] 6 |   kilobytes: String,
[INFO] [stdout]   |   ^^^^^^^^^
[INFO] [stdout] 7 |   megabytes: String,
[INFO] [stdout]   |   ^^^^^^^^^
[INFO] [stdout] 8 |   gigabytes: String,
[INFO] [stdout]   |   ^^^^^^^^^
[INFO] [stdout] 9 |   terabytes: String,
[INFO] [stdout]   |   ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Sizes` 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: fields `bytes`, `kilobytes`, `megabytes`, `gigabytes`, and `terabytes` are never read
[INFO] [stdout]  --> src/main.rs:5:3
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Sizes {
[INFO] [stdout]   |        ----- fields in this struct
[INFO] [stdout] 5 |   bytes: String,
[INFO] [stdout]   |   ^^^^^
[INFO] [stdout] 6 |   kilobytes: String,
[INFO] [stdout]   |   ^^^^^^^^^
[INFO] [stdout] 7 |   megabytes: String,
[INFO] [stdout]   |   ^^^^^^^^^
[INFO] [stdout] 8 |   gigabytes: String,
[INFO] [stdout]   |   ^^^^^^^^^
[INFO] [stdout] 9 |   terabytes: String,
[INFO] [stdout]   |   ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Sizes` 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 0.31s
[INFO] running `Command { std: "docker" "inspect" "4e05e047fdb108b4cf92c2c8ce70c477e7375133db4b0429697e59e3f8f01fa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e05e047fdb108b4cf92c2c8ce70c477e7375133db4b0429697e59e3f8f01fa2", kill_on_drop: false }`
[INFO] [stdout] 4e05e047fdb108b4cf92c2c8ce70c477e7375133db4b0429697e59e3f8f01fa2