[INFO] fetching crate fax_derive 0.2.0...
[INFO] checking fax_derive-0.2.0 against 895980e0290783bb09b1ccf1b11f14eb09b10430 for pr-160186
[INFO] extracting crate fax_derive 0.2.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate fax_derive 0.2.0
[INFO] finished tweaking crates.io crate fax_derive 0.2.0
[INFO] tweaked toml for crates.io crate fax_derive 0.2.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fax_derive 0.2.0 on toolchain 895980e0290783bb09b1ccf1b11f14eb09b10430
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate fax_derive 0.2.0 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" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 6fdd76202d4157b9fd7596ceaeb28b172b041277378fa3f4fd239622f590790a
[INFO] running `Command { std: "docker" "start" "6fdd76202d4157b9fd7596ceaeb28b172b041277378fa3f4fd239622f590790a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fdd76202d4157b9fd7596ceaeb28b172b041277378fa3f4fd239622f590790a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "6fdd76202d4157b9fd7596ceaeb28b172b041277378fa3f4fd239622f590790a" "/opt/rustwide/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fdd76202d4157b9fd7596ceaeb28b172b041277378fa3f4fd239622f590790a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "6fdd76202d4157b9fd7596ceaeb28b172b041277378fa3f4fd239622f590790a" "/opt/rustwide/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking proc-macro2 v1.0.101
[INFO] [stderr]     Checking quote v1.0.40
[INFO] [stderr]     Checking syn v2.0.106
[INFO] [stderr]     Checking fax_derive v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `common_prefix_len` and `align_left` are never used
[INFO] [stdout]    --> src/lib.rs:201:8
[INFO] [stdout]     |
[INFO] [stdout] 191 | impl Bits {
[INFO] [stdout]     | --------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 201 |     fn common_prefix_len(self, other: Bits) -> u8 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 204 |     fn align_left(self) -> u16 {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `size` is never used
[INFO] [stdout]    --> src/lib.rs:301:8
[INFO] [stdout]     |
[INFO] [stdout] 300 | impl<T: Copy + Default + Debug> Node<T> {
[INFO] [stdout]     | --------------------------------------- method in this implementation
[INFO] [stdout] 301 |     fn size(&self) -> usize {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `size` is never used
[INFO] [stdout]    --> src/lib.rs:343:8
[INFO] [stdout]     |
[INFO] [stdout] 342 | impl<T: Copy + Default + Debug> PrefixLut<T> {
[INFO] [stdout]     | -------------------------------------------- method in this implementation
[INFO] [stdout] 343 |     fn size(&self) -> usize {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `common_prefix_len` and `align_left` are never used
[INFO] [stdout]    --> src/lib.rs:201:8
[INFO] [stdout]     |
[INFO] [stdout] 191 | impl Bits {
[INFO] [stdout]     | --------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 201 |     fn common_prefix_len(self, other: Bits) -> u8 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 204 |     fn align_left(self) -> u16 {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `size` is never used
[INFO] [stdout]    --> src/lib.rs:301:8
[INFO] [stdout]     |
[INFO] [stdout] 300 | impl<T: Copy + Default + Debug> Node<T> {
[INFO] [stdout]     | --------------------------------------- method in this implementation
[INFO] [stdout] 301 |     fn size(&self) -> usize {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `size` is never used
[INFO] [stdout]    --> src/lib.rs:343:8
[INFO] [stdout]     |
[INFO] [stdout] 342 | impl<T: Copy + Default + Debug> PrefixLut<T> {
[INFO] [stdout]     | -------------------------------------------- method in this implementation
[INFO] [stdout] 343 |     fn size(&self) -> usize {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.30s
[INFO] running `Command { std: "docker" "inspect" "6fdd76202d4157b9fd7596ceaeb28b172b041277378fa3f4fd239622f590790a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fdd76202d4157b9fd7596ceaeb28b172b041277378fa3f4fd239622f590790a", kill_on_drop: false }`
[INFO] [stdout] 6fdd76202d4157b9fd7596ceaeb28b172b041277378fa3f4fd239622f590790a
