[INFO] cloning repository https://github.com/ErnWong/rust-wasm-experiment-wavesim
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ErnWong/rust-wasm-experiment-wavesim" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FErnWong%2Frust-wasm-experiment-wavesim", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FErnWong%2Frust-wasm-experiment-wavesim'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d411cd93c2aa6fa39ad926006cfd8e8e21f63077
[INFO] testing ErnWong/rust-wasm-experiment-wavesim against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FErnWong%2Frust-wasm-experiment-wavesim" "/workspace/builds/worker-39/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-39/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ErnWong/rust-wasm-experiment-wavesim on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ErnWong/rust-wasm-experiment-wavesim
[INFO] finished tweaking git repo https://github.com/ErnWong/rust-wasm-experiment-wavesim
[INFO] tweaked toml for git repo https://github.com/ErnWong/rust-wasm-experiment-wavesim written to /workspace/builds/worker-39/source/Cargo.toml
[INFO] crate git repo https://github.com/ErnWong/rust-wasm-experiment-wavesim already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 200d92c4b8ad0936a6e8353bd60c4a3492a28d6f35ae5f7feb69e8d9c4a40608
[INFO] running `Command { std: "docker" "start" "-a" "200d92c4b8ad0936a6e8353bd60c4a3492a28d6f35ae5f7feb69e8d9c4a40608", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "200d92c4b8ad0936a6e8353bd60c4a3492a28d6f35ae5f7feb69e8d9c4a40608", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "200d92c4b8ad0936a6e8353bd60c4a3492a28d6f35ae5f7feb69e8d9c4a40608", kill_on_drop: false }`
[INFO] [stdout] 200d92c4b8ad0936a6e8353bd60c4a3492a28d6f35ae5f7feb69e8d9c4a40608
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c0de1fd3fb8d93a65032731b998d1cc0c2e4aae5a870c1ce14008e40a162a24
[INFO] running `Command { std: "docker" "start" "-a" "0c0de1fd3fb8d93a65032731b998d1cc0c2e4aae5a870c1ce14008e40a162a24", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling num-traits v0.2.2
[INFO] [stderr]    Compiling rust-wasm-test-wavesim v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:297:9
[INFO] [stdout]     |
[INFO] [stdout] 297 |     let mut solver = unsafe { &mut *solver_ptr };
[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 does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:311:9
[INFO] [stdout]     |
[INFO] [stdout] 311 |     let mut solver = unsafe { &mut *solver_ptr };
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:318:9
[INFO] [stdout]     |
[INFO] [stdout] 318 |     let mut solver = unsafe { &mut *solver_ptr };
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.07s
[INFO] running `Command { std: "docker" "inspect" "0c0de1fd3fb8d93a65032731b998d1cc0c2e4aae5a870c1ce14008e40a162a24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c0de1fd3fb8d93a65032731b998d1cc0c2e4aae5a870c1ce14008e40a162a24", kill_on_drop: false }`
[INFO] [stdout] 0c0de1fd3fb8d93a65032731b998d1cc0c2e4aae5a870c1ce14008e40a162a24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 921a5b3240c789177c6d179277f40ab56df66a5a4837bccd995b4c9978fa2bce
[INFO] running `Command { std: "docker" "start" "-a" "921a5b3240c789177c6d179277f40ab56df66a5a4837bccd995b4c9978fa2bce", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-wasm-test-wavesim v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:297:9
[INFO] [stdout]     |
[INFO] [stdout] 297 |     let mut solver = unsafe { &mut *solver_ptr };
[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 does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:311:9
[INFO] [stdout]     |
[INFO] [stdout] 311 |     let mut solver = unsafe { &mut *solver_ptr };
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:318:9
[INFO] [stdout]     |
[INFO] [stdout] 318 |     let mut solver = unsafe { &mut *solver_ptr };
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.66s
[INFO] running `Command { std: "docker" "inspect" "921a5b3240c789177c6d179277f40ab56df66a5a4837bccd995b4c9978fa2bce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "921a5b3240c789177c6d179277f40ab56df66a5a4837bccd995b4c9978fa2bce", kill_on_drop: false }`
[INFO] [stdout] 921a5b3240c789177c6d179277f40ab56df66a5a4837bccd995b4c9978fa2bce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6bdb049467c6815b96584641b6e0c5b02f96c4b93e08c3ec78f528933eb98064
[INFO] running `Command { std: "docker" "start" "-a" "6bdb049467c6815b96584641b6e0c5b02f96c4b93e08c3ec78f528933eb98064", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:297:9
[INFO] [stderr]     |
[INFO] [stderr] 297 |     let mut solver = unsafe { &mut *solver_ptr };
[INFO] [stderr]     |         ----^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:311:9
[INFO] [stderr]     |
[INFO] [stderr] 311 |     let mut solver = unsafe { &mut *solver_ptr };
[INFO] [stderr]     |         ----^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:318:9
[INFO] [stderr]     |
[INFO] [stderr] 318 |     let mut solver = unsafe { &mut *solver_ptr };
[INFO] [stderr]     |         ----^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-wasm-test-wavesim` (lib test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_wasm_test_wavesim-1c21f0f841fe8a07)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6bdb049467c6815b96584641b6e0c5b02f96c4b93e08c3ec78f528933eb98064", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bdb049467c6815b96584641b6e0c5b02f96c4b93e08c3ec78f528933eb98064", kill_on_drop: false }`
[INFO] [stdout] 6bdb049467c6815b96584641b6e0c5b02f96c4b93e08c3ec78f528933eb98064