[INFO] cloning repository https://github.com/SOF3/willow
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SOF3/willow" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSOF3%2Fwillow", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSOF3%2Fwillow'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 30268cbb6a2687f7f2f8c2ee7af8b3be539d485b
[INFO] checking SOF3/willow against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSOF3%2Fwillow" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SOF3/willow on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SOF3/willow
[INFO] finished tweaking git repo https://github.com/SOF3/willow
[INFO] tweaked toml for git repo https://github.com/SOF3/willow written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/SOF3/willow 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded matrixmultiply v0.3.1
[INFO] [stderr]   Downloaded wide v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f4c0d6b6f190b43748b63f4a12ef6c64c084f7839e6bfdd3e60f7cfd6e2231b3
[INFO] running `Command { std: "docker" "start" "-a" "f4c0d6b6f190b43748b63f4a12ef6c64c084f7839e6bfdd3e60f7cfd6e2231b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4c0d6b6f190b43748b63f4a12ef6c64c084f7839e6bfdd3e60f7cfd6e2231b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4c0d6b6f190b43748b63f4a12ef6c64c084f7839e6bfdd3e60f7cfd6e2231b3", kill_on_drop: false }`
[INFO] [stdout] f4c0d6b6f190b43748b63f4a12ef6c64c084f7839e6bfdd3e60f7cfd6e2231b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eee2c1ffc2e68ad06fb6c4cd9828d90fa915832ea3dc682606e6122e271a20fb
[INFO] running `Command { std: "docker" "start" "-a" "eee2c1ffc2e68ad06fb6c4cd9828d90fa915832ea3dc682606e6122e271a20fb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.30
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.78
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling bumpalo v3.7.0
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling wasm-bindgen v0.2.78
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking bytemuck v1.7.2
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling anyhow v1.0.44
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking safe_arch v0.6.0
[INFO] [stderr]     Checking matrixmultiply v0.3.1
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking unicode-xid v0.2.2
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking wide v0.7.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking approx v0.5.0
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling field-offset v0.3.4
[INFO] [stderr]     Checking simba v0.6.0
[INFO] [stderr]     Checking willow-codegen v0.0.3 (/opt/rustwide/workdir/codegen)
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.78
[INFO] [stderr]    Compiling nalgebra-macros v0.1.0
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.78
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.78
[INFO] [stderr]     Checking nalgebra v0.29.0
[INFO] [stderr]     Checking js-sys v0.3.55
[INFO] [stderr]     Checking console_error_panic_hook v0.1.7
[INFO] [stderr]     Checking web-sys v0.3.55
[INFO] [stderr]     Checking wasm-logger v0.2.0
[INFO] [stderr]     Checking willow v0.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking willow-example v0.1.1 (/opt/rustwide/workdir/example)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 28.68s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.78
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "eee2c1ffc2e68ad06fb6c4cd9828d90fa915832ea3dc682606e6122e271a20fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eee2c1ffc2e68ad06fb6c4cd9828d90fa915832ea3dc682606e6122e271a20fb", kill_on_drop: false }`
[INFO] [stdout] eee2c1ffc2e68ad06fb6c4cd9828d90fa915832ea3dc682606e6122e271a20fb
[INFO] checking SOF3/willow against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSOF3%2Fwillow" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SOF3/willow on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SOF3/willow
[INFO] finished tweaking git repo https://github.com/SOF3/willow
[INFO] tweaked toml for git repo https://github.com/SOF3/willow written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/SOF3/willow 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 017892cdaa31250e644b7ceb20c3391d3e3db808330921dc1327f7b3d957e007
[INFO] running `Command { std: "docker" "start" "-a" "017892cdaa31250e644b7ceb20c3391d3e3db808330921dc1327f7b3d957e007", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "017892cdaa31250e644b7ceb20c3391d3e3db808330921dc1327f7b3d957e007", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "017892cdaa31250e644b7ceb20c3391d3e3db808330921dc1327f7b3d957e007", kill_on_drop: false }`
[INFO] [stdout] 017892cdaa31250e644b7ceb20c3391d3e3db808330921dc1327f7b3d957e007
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17f4c8b7ad6d3ac860bf74e57ff5e7f754dab5b326ed2146c1019b6d224bc880
[INFO] running `Command { std: "docker" "start" "-a" "17f4c8b7ad6d3ac860bf74e57ff5e7f754dab5b326ed2146c1019b6d224bc880", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.30
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.78
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling bumpalo v3.7.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling wasm-bindgen v0.2.78
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking bytemuck v1.7.2
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling anyhow v1.0.44
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking safe_arch v0.6.0
[INFO] [stderr]     Checking matrixmultiply v0.3.1
[INFO] [stderr]     Checking unicode-xid v0.2.2
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking wide v0.7.0
[INFO] [stderr]     Checking quote v1.0.10
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]     Checking approx v0.5.0
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling field-offset v0.3.4
[INFO] [stderr]     Checking simba v0.6.0
[INFO] [stderr]     Checking willow-codegen v0.0.3 (/opt/rustwide/workdir/codegen)
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.78
[INFO] [stderr]    Compiling nalgebra-macros v0.1.0
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.78
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.78
[INFO] [stderr]     Checking js-sys v0.3.55
[INFO] [stderr]     Checking console_error_panic_hook v0.1.7
[INFO] [stderr]     Checking nalgebra v0.29.0
[INFO] [stderr]     Checking web-sys v0.3.55
[INFO] [stderr]     Checking wasm-logger v0.2.0
[INFO] [stderr]     Checking willow v0.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking willow-example v0.1.1 (/opt/rustwide/workdir/example)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 29.99s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.78
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "17f4c8b7ad6d3ac860bf74e57ff5e7f754dab5b326ed2146c1019b6d224bc880", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17f4c8b7ad6d3ac860bf74e57ff5e7f754dab5b326ed2146c1019b6d224bc880", kill_on_drop: false }`
[INFO] [stdout] 17f4c8b7ad6d3ac860bf74e57ff5e7f754dab5b326ed2146c1019b6d224bc880