[INFO] cloning repository https://github.com/wefcdse/nbt_cleaner
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wefcdse/nbt_cleaner" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwefcdse%2Fnbt_cleaner", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwefcdse%2Fnbt_cleaner'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 74abd80c72d24ac7e10bb586bda6f1f79bb6a359
[INFO] checking wefcdse/nbt_cleaner against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwefcdse%2Fnbt_cleaner" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wefcdse/nbt_cleaner on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wefcdse/nbt_cleaner
[INFO] finished tweaking git repo https://github.com/wefcdse/nbt_cleaner
[INFO] tweaked toml for git repo https://github.com/wefcdse/nbt_cleaner written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/wefcdse/nbt_cleaner 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quartz_nbt_macros v0.1.1
[INFO] [stderr]   Downloaded quartz_nbt v0.2.8
[INFO] [stderr]   Downloaded fastnbt v2.4.4
[INFO] [stderr]   Downloaded stupid_utils v0.2.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4999020f6f007b95facf3f7a99835540147aa7b55ddcbf29b6dbf653a99369e0
[INFO] running `Command { std: "docker" "start" "-a" "4999020f6f007b95facf3f7a99835540147aa7b55ddcbf29b6dbf653a99369e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4999020f6f007b95facf3f7a99835540147aa7b55ddcbf29b6dbf653a99369e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4999020f6f007b95facf3f7a99835540147aa7b55ddcbf29b6dbf653a99369e0", kill_on_drop: false }`
[INFO] [stdout] 4999020f6f007b95facf3f7a99835540147aa7b55ddcbf29b6dbf653a99369e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 959d65139085b835d251741812dfdf67ff18e5cceb752acc9b39830e182f1b7e
[INFO] running `Command { std: "docker" "start" "-a" "959d65139085b835d251741812dfdf67ff18e5cceb752acc9b39830e182f1b7e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]    Compiling anyhow v1.0.79
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking cesu8 v1.1.0
[INFO] [stderr]     Checking stupid_utils v0.2.4
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling serde_derive v1.0.196
[INFO] [stderr]    Compiling quartz_nbt_macros v0.1.1
[INFO] [stderr]     Checking quartz_nbt v0.2.8
[INFO] [stderr]     Checking serde_bytes v0.11.14
[INFO] [stderr]     Checking fastnbt v2.4.4
[INFO] [stderr]     Checking nbt_cleaner v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/main.rs:2:29
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{BTreeSet, HashSet},
[INFO] [stdout]   |                             ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `MapValue`, `MutableInit`
[INFO] [stdout]   --> src/main.rs:10:29
[INFO] [stdout]    |
[INFO] [stdout] 10 | use stupid_utils::predule::{MapValue, MutableInit};
[INFO] [stdout]    |                             ^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/main.rs:2:29
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{BTreeSet, HashSet},
[INFO] [stdout]   |                             ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `MapValue`, `MutableInit`
[INFO] [stdout]   --> src/main.rs:10:29
[INFO] [stdout]    |
[INFO] [stdout] 10 | use stupid_utils::predule::{MapValue, MutableInit};
[INFO] [stdout]    |                             ^^^^^^^^  ^^^^^^^^^^^
[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 14.22s
[INFO] running `Command { std: "docker" "inspect" "959d65139085b835d251741812dfdf67ff18e5cceb752acc9b39830e182f1b7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "959d65139085b835d251741812dfdf67ff18e5cceb752acc9b39830e182f1b7e", kill_on_drop: false }`
[INFO] [stdout] 959d65139085b835d251741812dfdf67ff18e5cceb752acc9b39830e182f1b7e
[INFO] checking wefcdse/nbt_cleaner against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwefcdse%2Fnbt_cleaner" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wefcdse/nbt_cleaner on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wefcdse/nbt_cleaner
[INFO] finished tweaking git repo https://github.com/wefcdse/nbt_cleaner
[INFO] tweaked toml for git repo https://github.com/wefcdse/nbt_cleaner written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/wefcdse/nbt_cleaner 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e87e8aa5a442dbf789c10b835934e2cecf6bc2a48f254f2698c76a00b84cf365
[INFO] running `Command { std: "docker" "start" "-a" "e87e8aa5a442dbf789c10b835934e2cecf6bc2a48f254f2698c76a00b84cf365", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e87e8aa5a442dbf789c10b835934e2cecf6bc2a48f254f2698c76a00b84cf365", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e87e8aa5a442dbf789c10b835934e2cecf6bc2a48f254f2698c76a00b84cf365", kill_on_drop: false }`
[INFO] [stdout] e87e8aa5a442dbf789c10b835934e2cecf6bc2a48f254f2698c76a00b84cf365
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa1d3c6d477f9251574cf15d583af6f22a7beb6c228be29b9c0d0d4bf5943a23
[INFO] running `Command { std: "docker" "start" "-a" "aa1d3c6d477f9251574cf15d583af6f22a7beb6c228be29b9c0d0d4bf5943a23", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]    Compiling anyhow v1.0.79
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking cesu8 v1.1.0
[INFO] [stderr]     Checking stupid_utils v0.2.4
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling serde_derive v1.0.196
[INFO] [stderr]    Compiling quartz_nbt_macros v0.1.1
[INFO] [stderr]     Checking quartz_nbt v0.2.8
[INFO] [stderr]     Checking serde_bytes v0.11.14
[INFO] [stderr]     Checking fastnbt v2.4.4
[INFO] [stderr]     Checking nbt_cleaner v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/main.rs:2:29
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{BTreeSet, HashSet},
[INFO] [stdout]   |                             ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `MapValue`, `MutableInit`
[INFO] [stdout]   --> src/main.rs:10:29
[INFO] [stdout]    |
[INFO] [stdout] 10 | use stupid_utils::predule::{MapValue, MutableInit};
[INFO] [stdout]    |                             ^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/main.rs:2:29
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{BTreeSet, HashSet},
[INFO] [stdout]   |                             ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `MapValue`, `MutableInit`
[INFO] [stdout]   --> src/main.rs:10:29
[INFO] [stdout]    |
[INFO] [stdout] 10 | use stupid_utils::predule::{MapValue, MutableInit};
[INFO] [stdout]    |                             ^^^^^^^^  ^^^^^^^^^^^
[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 14.03s
[INFO] running `Command { std: "docker" "inspect" "aa1d3c6d477f9251574cf15d583af6f22a7beb6c228be29b9c0d0d4bf5943a23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa1d3c6d477f9251574cf15d583af6f22a7beb6c228be29b9c0d0d4bf5943a23", kill_on_drop: false }`
[INFO] [stdout] aa1d3c6d477f9251574cf15d583af6f22a7beb6c228be29b9c0d0d4bf5943a23