[INFO] fetching crate fern_sim_test 0.1.0...
[INFO] checking fern_sim_test-0.1.0 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate fern_sim_test 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate fern_sim_test 0.1.0
[INFO] finished tweaking crates.io crate fern_sim_test 0.1.0
[INFO] tweaked toml for crates.io crate fern_sim_test 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fern_sim_test 0.1.0 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate fern_sim_test 0.1.0 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 12a596680c13ba34f9db5c4f68effb80f86711d766c5e4335a244492da4d6865
[INFO] running `Command { std: "docker" "start" "-a" "12a596680c13ba34f9db5c4f68effb80f86711d766c5e4335a244492da4d6865", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "12a596680c13ba34f9db5c4f68effb80f86711d766c5e4335a244492da4d6865", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12a596680c13ba34f9db5c4f68effb80f86711d766c5e4335a244492da4d6865", kill_on_drop: false }`
[INFO] [stdout] 12a596680c13ba34f9db5c4f68effb80f86711d766c5e4335a244492da4d6865
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4e5dd25380aa2af4813a881d8305ae84d36be760c67452ac1c1729a08a61071f
[INFO] running `Command { std: "docker" "start" "-a" "4e5dd25380aa2af4813a881d8305ae84d36be760c67452ac1c1729a08a61071f", kill_on_drop: false }`
[INFO] [stderr]     Checking fern_sim_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `time`
[INFO] [stdout]   --> src/simulation.rs:37:38
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn apply_sunlight(&mut self, time: Duration) {
[INFO] [stdout]    |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_time`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `factory`
[INFO] [stdout]  --> src/spores.rs:9:22
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn produce_spore(factory: &mut i32) -> Spore {
[INFO] [stdout]   |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_factory`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `spore`
[INFO] [stdout]   --> src/spores.rs:13:21
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub(crate) fn genes(spore: &Spore) -> Vec<Gene> {
[INFO] [stdout]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_spore`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent`
[INFO] [stdout]   --> src/spores.rs:17:14
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn recombine(parent: &mut Cell) {
[INFO] [stdout]    |              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `size` is never read
[INFO] [stdout]  --> src/spores.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Spore {
[INFO] [stdout]   |            ----- field in this struct
[INFO] [stdout] 6 |     size: f64,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `genes` is never used
[INFO] [stdout]   --> src/spores.rs:13:15
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub(crate) fn genes(spore: &Spore) -> Vec<Gene> {
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `recombine` is never used
[INFO] [stdout]   --> src/spores.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn recombine(parent: &mut Cell) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cell` is never constructed
[INFO] [stdout]   --> src/spores.rs:22:16
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub struct Cell {
[INFO] [stdout]    |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `distance_from_origin` is never used
[INFO] [stdout]   --> src/spores.rs:27:16
[INFO] [stdout]    |
[INFO] [stdout] 26 |     impl Cell {
[INFO] [stdout]    |     --------- method in this implementation
[INFO] [stdout] 27 |         pub fn distance_from_origin(&self) -> f64 {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Gene` is never constructed
[INFO] [stdout]   --> src/spores.rs:32:16
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub struct Gene;
[INFO] [stdout]    |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `time`
[INFO] [stdout]   --> src/simulation.rs:37:38
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn apply_sunlight(&mut self, time: Duration) {
[INFO] [stdout]    |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_time`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `factory`
[INFO] [stdout]  --> src/spores.rs:9:22
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn produce_spore(factory: &mut i32) -> Spore {
[INFO] [stdout]   |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_factory`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `spore`
[INFO] [stdout]   --> src/spores.rs:13:21
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub(crate) fn genes(spore: &Spore) -> Vec<Gene> {
[INFO] [stdout]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_spore`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parent`
[INFO] [stdout]   --> src/spores.rs:17:14
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn recombine(parent: &mut Cell) {
[INFO] [stdout]    |              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parent`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `size` is never read
[INFO] [stdout]  --> src/spores.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Spore {
[INFO] [stdout]   |            ----- field in this struct
[INFO] [stdout] 6 |     size: f64,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `genes` is never used
[INFO] [stdout]   --> src/spores.rs:13:15
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub(crate) fn genes(spore: &Spore) -> Vec<Gene> {
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `recombine` is never used
[INFO] [stdout]   --> src/spores.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn recombine(parent: &mut Cell) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cell` is never constructed
[INFO] [stdout]   --> src/spores.rs:22:16
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub struct Cell {
[INFO] [stdout]    |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `distance_from_origin` is never used
[INFO] [stdout]   --> src/spores.rs:27:16
[INFO] [stdout]    |
[INFO] [stdout] 26 |     impl Cell {
[INFO] [stdout]    |     --------- method in this implementation
[INFO] [stdout] 27 |         pub fn distance_from_origin(&self) -> f64 {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Gene` is never constructed
[INFO] [stdout]   --> src/spores.rs:32:16
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub struct Gene;
[INFO] [stdout]    |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "4e5dd25380aa2af4813a881d8305ae84d36be760c67452ac1c1729a08a61071f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e5dd25380aa2af4813a881d8305ae84d36be760c67452ac1c1729a08a61071f", kill_on_drop: false }`
[INFO] [stdout] 4e5dd25380aa2af4813a881d8305ae84d36be760c67452ac1c1729a08a61071f