[INFO] cloning repository https://github.com/ssfdust/rs-ex-1
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ssfdust/rs-ex-1" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fssfdust%2Frs-ex-1", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fssfdust%2Frs-ex-1'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a8790d8a475bba08bec328a092c33cea3fc98e42
[INFO] checking ssfdust/rs-ex-1 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fssfdust%2Frs-ex-1" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ssfdust/rs-ex-1 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ssfdust/rs-ex-1
[INFO] finished tweaking git repo https://github.com/ssfdust/rs-ex-1
[INFO] tweaked toml for git repo https://github.com/ssfdust/rs-ex-1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ssfdust/rs-ex-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rayon-core v1.9.1
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.5
[INFO] [stderr]   Downloaded ctrlc v3.2.1
[INFO] [stderr]   Downloaded which v4.2.2
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.5
[INFO] [stderr]   Downloaded sysinfo v0.22.4
[INFO] [stderr]   Downloaded crossbeam-channel v0.5.1
[INFO] [stderr]   Downloaded rayon v1.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3d68a14837f3013acd25682f0b204ffa2092d44d8c42daa186e4edfc7febbcc1
[INFO] running `Command { std: "docker" "start" "-a" "3d68a14837f3013acd25682f0b204ffa2092d44d8c42daa186e4edfc7febbcc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d68a14837f3013acd25682f0b204ffa2092d44d8c42daa186e4edfc7febbcc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d68a14837f3013acd25682f0b204ffa2092d44d8c42daa186e4edfc7febbcc1", kill_on_drop: false }`
[INFO] [stdout] 3d68a14837f3013acd25682f0b204ffa2092d44d8c42daa186e4edfc7febbcc1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 490b9062ba26f5484ee1eabb065071a54f11595cf5f6679c4b224c541f4599c7
[INFO] running `Command { std: "docker" "start" "-a" "490b9062ba26f5484ee1eabb065071a54f11595cf5f6679c4b224c541f4599c7", kill_on_drop: false }`
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling syn v1.0.84
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling sysinfo v0.22.4
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]     Checking which v4.2.2
[INFO] [stderr]     Checking ctrlc v3.2.1
[INFO] [stderr]     Checking strace-upgrade v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `FakeUnzipInfo` and `get_current_fake_unzip_info`
[INFO] [stdout]  --> src/fakeunzip/mod.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use interactor::{get_current_fake_unzip_info, FakeUnzipInteractor, FakeUnzipInfo};
[INFO] [stdout]   |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^                       ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `FakeUnzipInfo` and `get_current_fake_unzip_info`
[INFO] [stdout]  --> src/fakeunzip/mod.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use interactor::{get_current_fake_unzip_info, FakeUnzipInteractor, FakeUnzipInfo};
[INFO] [stdout]   |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^                       ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_user_confirm` is never used
[INFO] [stdout]  --> src/userinput/mod.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn get_user_confirm() -> bool {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_user_confirm` is never used
[INFO] [stdout]  --> src/userinput/mod.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn get_user_confirm() -> bool {
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.47s
[INFO] running `Command { std: "docker" "inspect" "490b9062ba26f5484ee1eabb065071a54f11595cf5f6679c4b224c541f4599c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "490b9062ba26f5484ee1eabb065071a54f11595cf5f6679c4b224c541f4599c7", kill_on_drop: false }`
[INFO] [stdout] 490b9062ba26f5484ee1eabb065071a54f11595cf5f6679c4b224c541f4599c7