[INFO] fetching crate harmony 0.2.1...
[INFO] checking harmony-0.2.1 against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] extracting crate harmony 0.2.1 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate harmony 0.2.1 on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate harmony 0.2.1
[INFO] finished tweaking crates.io crate harmony 0.2.1
[INFO] tweaked toml for crates.io crate harmony 0.2.1 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 21db57456d6749cbf4c5b95cf37c83d57442a741fbeada4b8d003da4a73ddbfe
[INFO] running `Command { std: "docker" "start" "-a" "21db57456d6749cbf4c5b95cf37c83d57442a741fbeada4b8d003da4a73ddbfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21db57456d6749cbf4c5b95cf37c83d57442a741fbeada4b8d003da4a73ddbfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21db57456d6749cbf4c5b95cf37c83d57442a741fbeada4b8d003da4a73ddbfe", kill_on_drop: false }`
[INFO] [stdout] 21db57456d6749cbf4c5b95cf37c83d57442a741fbeada4b8d003da4a73ddbfe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9263dbad14cbc35315594e1f2ea1190131a12dce966944b5629ec46ee79883be
[INFO] running `Command { std: "docker" "start" "-a" "9263dbad14cbc35315594e1f2ea1190131a12dce966944b5629ec46ee79883be", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking itertools v0.4.19
[INFO] [stderr]     Checking harmony v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:363:13
[INFO] [stdout]     |
[INFO] [stdout] 363 |         let mut stages = [PlayState::Placed, PlayState::Static, PlayState::Moved];
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:199:14
[INFO] [stdout]     |
[INFO] [stdout] 199 |         for (A, B) in harmonies.iter().combinations() {
[INFO] [stdout]     |              ^ help: convert the identifier to snake case: `a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:199:17
[INFO] [stdout]     |
[INFO] [stdout] 199 |         for (A, B) in harmonies.iter().combinations() {
[INFO] [stdout]     |                 ^ help: convert the identifier to snake case: `b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A_lower` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:204:29
[INFO] [stdout]     |
[INFO] [stdout] 204 |                         let A_lower = std::cmp::min(A.start.y, A.end.y);
[INFO] [stdout]     |                             ^^^^^^^ help: convert the identifier to snake case: `a_lower`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A_upper` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:205:29
[INFO] [stdout]     |
[INFO] [stdout] 205 |                         let A_upper = std::cmp::max(A.start.y, A.end.y);
[INFO] [stdout]     |                             ^^^^^^^ help: convert the identifier to snake case: `a_upper`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B_lower` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:206:29
[INFO] [stdout]     |
[INFO] [stdout] 206 |                         let B_lower = std::cmp::min(B.start.x, B.end.x);
[INFO] [stdout]     |                             ^^^^^^^ help: convert the identifier to snake case: `b_lower`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B_upper` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:207:29
[INFO] [stdout]     |
[INFO] [stdout] 207 |                         let B_upper = std::cmp::max(B.start.x, B.end.x);
[INFO] [stdout]     |                             ^^^^^^^ help: convert the identifier to snake case: `b_upper`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A_lower` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:217:29
[INFO] [stdout]     |
[INFO] [stdout] 217 |                         let A_lower = std::cmp::min(A.start.x, A.end.x);
[INFO] [stdout]     |                             ^^^^^^^ help: convert the identifier to snake case: `a_lower`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A_upper` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:218:29
[INFO] [stdout]     |
[INFO] [stdout] 218 |                         let A_upper = std::cmp::max(A.start.x, A.end.x);
[INFO] [stdout]     |                             ^^^^^^^ help: convert the identifier to snake case: `a_upper`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B_lower` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:219:29
[INFO] [stdout]     |
[INFO] [stdout] 219 |                         let B_lower = std::cmp::min(B.start.y, B.end.y);
[INFO] [stdout]     |                             ^^^^^^^ help: convert the identifier to snake case: `b_lower`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B_upper` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:220:29
[INFO] [stdout]     |
[INFO] [stdout] 220 |                         let B_upper = std::cmp::max(B.start.y, B.end.y);
[INFO] [stdout]     |                             ^^^^^^^ help: convert the identifier to snake case: `b_upper`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A_lower` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:231:33
[INFO] [stdout]     |
[INFO] [stdout] 231 | ...                   let A_lower = std::cmp::min(A.start.y, A.end.y);
[INFO] [stdout]     |                           ^^^^^^^ help: convert the identifier to snake case: `a_lower`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A_upper` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:232:33
[INFO] [stdout]     |
[INFO] [stdout] 232 | ...                   let A_upper = std::cmp::max(A.start.y, A.end.y);
[INFO] [stdout]     |                           ^^^^^^^ help: convert the identifier to snake case: `a_upper`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B_lower` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:233:33
[INFO] [stdout]     |
[INFO] [stdout] 233 | ...                   let B_lower = std::cmp::min(B.start.y, B.end.y);
[INFO] [stdout]     |                           ^^^^^^^ help: convert the identifier to snake case: `b_lower`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B_upper` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:234:33
[INFO] [stdout]     |
[INFO] [stdout] 234 | ...                   let B_upper = std::cmp::max(B.start.y, B.end.y);
[INFO] [stdout]     |                           ^^^^^^^ help: convert the identifier to snake case: `b_upper`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A_lower` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:246:33
[INFO] [stdout]     |
[INFO] [stdout] 246 | ...                   let A_lower = std::cmp::min(A.start.x, A.end.x);
[INFO] [stdout]     |                           ^^^^^^^ help: convert the identifier to snake case: `a_lower`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A_upper` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:247:33
[INFO] [stdout]     |
[INFO] [stdout] 247 | ...                   let A_upper = std::cmp::max(A.start.x, A.end.x);
[INFO] [stdout]     |                           ^^^^^^^ help: convert the identifier to snake case: `a_upper`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B_lower` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:248:33
[INFO] [stdout]     |
[INFO] [stdout] 248 | ...                   let B_lower = std::cmp::min(B.start.x, B.end.x);
[INFO] [stdout]     |                           ^^^^^^^ help: convert the identifier to snake case: `b_lower`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B_upper` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:249:33
[INFO] [stdout]     |
[INFO] [stdout] 249 | ...                   let B_upper = std::cmp::max(B.start.x, B.end.x);
[INFO] [stdout]     |                           ^^^^^^^ help: convert the identifier to snake case: `b_upper`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:363:13
[INFO] [stdout]     |
[INFO] [stdout] 363 |         let mut stages = [PlayState::Placed, PlayState::Static, PlayState::Moved];
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:199:14
[INFO] [stdout]     |
[INFO] [stdout] 199 |         for (A, B) in harmonies.iter().combinations() {
[INFO] [stdout]     |              ^ help: convert the identifier to snake case: `a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:199:17
[INFO] [stdout]     |
[INFO] [stdout] 199 |         for (A, B) in harmonies.iter().combinations() {
[INFO] [stdout]     |                 ^ help: convert the identifier to snake case: `b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A_lower` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:204:29
[INFO] [stdout]     |
[INFO] [stdout] 204 |                         let A_lower = std::cmp::min(A.start.y, A.end.y);
[INFO] [stdout]     |                             ^^^^^^^ help: convert the identifier to snake case: `a_lower`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A_upper` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:205:29
[INFO] [stdout]     |
[INFO] [stdout] 205 |                         let A_upper = std::cmp::max(A.start.y, A.end.y);
[INFO] [stdout]     |                             ^^^^^^^ help: convert the identifier to snake case: `a_upper`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B_lower` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:206:29
[INFO] [stdout]     |
[INFO] [stdout] 206 |                         let B_lower = std::cmp::min(B.start.x, B.end.x);
[INFO] [stdout]     |                             ^^^^^^^ help: convert the identifier to snake case: `b_lower`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B_upper` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:207:29
[INFO] [stdout]     |
[INFO] [stdout] 207 |                         let B_upper = std::cmp::max(B.start.x, B.end.x);
[INFO] [stdout]     |                             ^^^^^^^ help: convert the identifier to snake case: `b_upper`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A_lower` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:217:29
[INFO] [stdout]     |
[INFO] [stdout] 217 |                         let A_lower = std::cmp::min(A.start.x, A.end.x);
[INFO] [stdout]     |                             ^^^^^^^ help: convert the identifier to snake case: `a_lower`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A_upper` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:218:29
[INFO] [stdout]     |
[INFO] [stdout] 218 |                         let A_upper = std::cmp::max(A.start.x, A.end.x);
[INFO] [stdout]     |                             ^^^^^^^ help: convert the identifier to snake case: `a_upper`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B_lower` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:219:29
[INFO] [stdout]     |
[INFO] [stdout] 219 |                         let B_lower = std::cmp::min(B.start.y, B.end.y);
[INFO] [stdout]     |                             ^^^^^^^ help: convert the identifier to snake case: `b_lower`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B_upper` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:220:29
[INFO] [stdout]     |
[INFO] [stdout] 220 |                         let B_upper = std::cmp::max(B.start.y, B.end.y);
[INFO] [stdout]     |                             ^^^^^^^ help: convert the identifier to snake case: `b_upper`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A_lower` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:231:33
[INFO] [stdout]     |
[INFO] [stdout] 231 | ...                   let A_lower = std::cmp::min(A.start.y, A.end.y);
[INFO] [stdout]     |                           ^^^^^^^ help: convert the identifier to snake case: `a_lower`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A_upper` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:232:33
[INFO] [stdout]     |
[INFO] [stdout] 232 | ...                   let A_upper = std::cmp::max(A.start.y, A.end.y);
[INFO] [stdout]     |                           ^^^^^^^ help: convert the identifier to snake case: `a_upper`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B_lower` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:233:33
[INFO] [stdout]     |
[INFO] [stdout] 233 | ...                   let B_lower = std::cmp::min(B.start.y, B.end.y);
[INFO] [stdout]     |                           ^^^^^^^ help: convert the identifier to snake case: `b_lower`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B_upper` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:234:33
[INFO] [stdout]     |
[INFO] [stdout] 234 | ...                   let B_upper = std::cmp::max(B.start.y, B.end.y);
[INFO] [stdout]     |                           ^^^^^^^ help: convert the identifier to snake case: `b_upper`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A_lower` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:246:33
[INFO] [stdout]     |
[INFO] [stdout] 246 | ...                   let A_lower = std::cmp::min(A.start.x, A.end.x);
[INFO] [stdout]     |                           ^^^^^^^ help: convert the identifier to snake case: `a_lower`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `A_upper` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:247:33
[INFO] [stdout]     |
[INFO] [stdout] 247 | ...                   let A_upper = std::cmp::max(A.start.x, A.end.x);
[INFO] [stdout]     |                           ^^^^^^^ help: convert the identifier to snake case: `a_upper`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B_lower` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:248:33
[INFO] [stdout]     |
[INFO] [stdout] 248 | ...                   let B_lower = std::cmp::min(B.start.x, B.end.x);
[INFO] [stdout]     |                           ^^^^^^^ help: convert the identifier to snake case: `b_lower`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `B_upper` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:249:33
[INFO] [stdout]     |
[INFO] [stdout] 249 | ...                   let B_upper = std::cmp::max(B.start.x, B.end.x);
[INFO] [stdout]     |                           ^^^^^^^ help: convert the identifier to snake case: `b_upper`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.13s
[INFO] running `Command { std: "docker" "inspect" "9263dbad14cbc35315594e1f2ea1190131a12dce966944b5629ec46ee79883be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9263dbad14cbc35315594e1f2ea1190131a12dce966944b5629ec46ee79883be", kill_on_drop: false }`
[INFO] [stdout] 9263dbad14cbc35315594e1f2ea1190131a12dce966944b5629ec46ee79883be