[INFO] fetching crate emuman 2.10.0...
[INFO] checking emuman-2.10.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate emuman 2.10.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate emuman 2.10.0 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate emuman 2.10.0
[INFO] finished tweaking crates.io crate emuman 2.10.0
[INFO] tweaked toml for crates.io crate emuman 2.10.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate emuman 2.10.0 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nohash v0.2.0
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[INFO] running `Command { std: "docker" "start" "-a" "fba2fc1b8dc1f6fa108a8bd70c0cb7fd417050c83bf95e4603c5e0722c43d0c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fba2fc1b8dc1f6fa108a8bd70c0cb7fd417050c83bf95e4603c5e0722c43d0c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fba2fc1b8dc1f6fa108a8bd70c0cb7fd417050c83bf95e4603c5e0722c43d0c6", kill_on_drop: false }`
[INFO] [stdout] fba2fc1b8dc1f6fa108a8bd70c0cb7fd417050c83bf95e4603c5e0722c43d0c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 585fc5c333b743e3ac4377b914c58262f27e22f6262fe1249f27b8184cfb3242
[INFO] running `Command { std: "docker" "start" "-a" "585fc5c333b743e3ac4377b914c58262f27e22f6262fe1249f27b8184cfb3242", kill_on_drop: false }`
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[INFO] [stderr]     Checking emuman v2.10.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `FromIterator` is imported redundantly
[INFO] [stdout]   --> src/game.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::iter::FromIterator;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `FromIterator` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FromIterator` is imported redundantly
[INFO] [stdout]   --> src/game.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::iter::FromIterator;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `FromIterator` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name`, `part`, and `path` are never read
[INFO] [stdout]    --> src/game.rs:787:9
[INFO] [stdout]     |
[INFO] [stdout] 786 | pub struct VerifySuccess<'s> {
[INFO] [stdout]     |            ------------- fields in this struct
[INFO] [stdout] 787 |     pub name: &'s str,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 788 |     pub part: &'s Part,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 789 |     pub path: PathBuf,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `VerifySuccess` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `part` are never read
[INFO] [stdout]    --> src/game.rs:806:9
[INFO] [stdout]     |
[INFO] [stdout] 803 |     Rename {
[INFO] [stdout]     |     ------ fields in this variant
[INFO] [stdout] ...
[INFO] [stdout] 806 |         name: &'s str,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 807 |         part: &'s Part,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `extend_many` is never used
[INFO] [stdout]     --> src/game.rs:1035:8
[INFO] [stdout]      |
[INFO] [stdout] 1031 | pub trait ExtendOne<I>: Extend<I> {
[INFO] [stdout]      |           --------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 1035 |     fn extend_many<T>(&mut self, iter: T)
[INFO] [stdout]      |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name`, `part`, and `path` are never read
[INFO] [stdout]    --> src/game.rs:787:9
[INFO] [stdout]     |
[INFO] [stdout] 786 | pub struct VerifySuccess<'s> {
[INFO] [stdout]     |            ------------- fields in this struct
[INFO] [stdout] 787 |     pub name: &'s str,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 788 |     pub part: &'s Part,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 789 |     pub path: PathBuf,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `VerifySuccess` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `part` are never read
[INFO] [stdout]    --> src/game.rs:806:9
[INFO] [stdout]     |
[INFO] [stdout] 803 |     Rename {
[INFO] [stdout]     |     ------ fields in this variant
[INFO] [stdout] ...
[INFO] [stdout] 806 |         name: &'s str,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 807 |         part: &'s Part,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `extend_many` is never used
[INFO] [stdout]     --> src/game.rs:1035:8
[INFO] [stdout]      |
[INFO] [stdout] 1031 | pub trait ExtendOne<I>: Extend<I> {
[INFO] [stdout]      |           --------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 1035 |     fn extend_many<T>(&mut self, iter: T)
[INFO] [stdout]      |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.82s
[INFO] running `Command { std: "docker" "inspect" "585fc5c333b743e3ac4377b914c58262f27e22f6262fe1249f27b8184cfb3242", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "585fc5c333b743e3ac4377b914c58262f27e22f6262fe1249f27b8184cfb3242", kill_on_drop: false }`
[INFO] [stdout] 585fc5c333b743e3ac4377b914c58262f27e22f6262fe1249f27b8184cfb3242