[INFO] cloning repository https://github.com/Nineball54/file-size-distro
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Nineball54/file-size-distro" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNineball54%2Ffile-size-distro", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNineball54%2Ffile-size-distro'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 373206b1486a53706f2362986427a40dedd5af9b
[INFO] testing Nineball54/file-size-distro against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNineball54%2Ffile-size-distro" "/workspace/builds/worker-16/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-16/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Nineball54/file-size-distro on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Nineball54/file-size-distro
[INFO] finished tweaking git repo https://github.com/Nineball54/file-size-distro
[INFO] tweaked toml for git repo https://github.com/Nineball54/file-size-distro written to /workspace/builds/worker-16/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8affcd89dafb4d0abab495552948c0b8c05d34637bc63f8a321e8ac3f7180bc3
[INFO] running `Command { std: "docker" "start" "-a" "8affcd89dafb4d0abab495552948c0b8c05d34637bc63f8a321e8ac3f7180bc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8affcd89dafb4d0abab495552948c0b8c05d34637bc63f8a321e8ac3f7180bc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8affcd89dafb4d0abab495552948c0b8c05d34637bc63f8a321e8ac3f7180bc3", kill_on_drop: false }`
[INFO] [stdout] 8affcd89dafb4d0abab495552948c0b8c05d34637bc63f8a321e8ac3f7180bc3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 547d578c8eb8bf1230784180dc94a80ac240ce1a4fbb3f17dcfbf38e5f6cc054
[INFO] running `Command { std: "docker" "start" "-a" "547d578c8eb8bf1230784180dc94a80ac240ce1a4fbb3f17dcfbf38e5f6cc054", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling file-size-distro v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.89s
[INFO] running `Command { std: "docker" "inspect" "547d578c8eb8bf1230784180dc94a80ac240ce1a4fbb3f17dcfbf38e5f6cc054", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "547d578c8eb8bf1230784180dc94a80ac240ce1a4fbb3f17dcfbf38e5f6cc054", kill_on_drop: false }`
[INFO] [stdout] 547d578c8eb8bf1230784180dc94a80ac240ce1a4fbb3f17dcfbf38e5f6cc054
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9875051a00b8f2a21dd51fa091a71686279188af1910b3a6a7649f12d414248b
[INFO] running `Command { std: "docker" "start" "-a" "9875051a00b8f2a21dd51fa091a71686279188af1910b3a6a7649f12d414248b", kill_on_drop: false }`
[INFO] [stderr]    Compiling file-size-distro v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `File`
[INFO] [stdout]    --> src/main.rs:188:24
[INFO] [stdout]     |
[INFO] [stdout] 188 |         let mut file = File::create("testing.txt").expect("could not create test file");
[INFO] [stdout]     |                        ^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 181 |     use std::fs::File;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::prelude`
[INFO] [stdout]    --> src/main.rs:186:13
[INFO] [stdout]     |
[INFO] [stdout] 186 |         use std::io::prelude::*;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `file-size-distro` due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "9875051a00b8f2a21dd51fa091a71686279188af1910b3a6a7649f12d414248b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9875051a00b8f2a21dd51fa091a71686279188af1910b3a6a7649f12d414248b", kill_on_drop: false }`
[INFO] [stdout] 9875051a00b8f2a21dd51fa091a71686279188af1910b3a6a7649f12d414248b