[INFO] fetching crate amplify 4.8.1...
[INFO] checking amplify-4.8.1 against master#8f43b85954d2f3d8fc00a7504c603e5ca9eb0695 for pr-133502-5
[INFO] extracting crate amplify 4.8.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate amplify 4.8.1 on toolchain 8f43b85954d2f3d8fc00a7504c603e5ca9eb0695
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f43b85954d2f3d8fc00a7504c603e5ca9eb0695" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate amplify 4.8.1
[INFO] finished tweaking crates.io crate amplify 4.8.1
[INFO] tweaked toml for crates.io crate amplify 4.8.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate amplify 4.8.1 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" "+8f43b85954d2f3d8fc00a7504c603e5ca9eb0695" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-test v0.3.45
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.95
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.95
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.95
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.95
[INFO] [stderr]   Downloaded serde_str_helpers v0.1.2
[INFO] [stderr]   Downloaded amplify_syn v2.0.1
[INFO] [stderr]   Downloaded ascii v1.1.0
[INFO] [stderr]   Downloaded serde_derive v1.0.214
[INFO] [stderr]   Downloaded amplify_derive v4.0.1
[INFO] [stderr]   Downloaded amplify_apfloat v0.3.1
[INFO] [stderr]   Downloaded wasm-bindgen-test-macro v0.3.45
[INFO] [stderr]   Downloaded cc v1.1.34
[INFO] [stderr]   Downloaded serde v1.0.214
[INFO] [stderr]   Downloaded serde_json v1.0.132
[INFO] [stderr]   Downloaded js-sys v0.3.72
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.45
[INFO] [stderr]   Downloaded minicov v0.3.6
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.95
[INFO] [stderr]   Downloaded proc-macro2 v1.0.89
[INFO] [stderr]   Downloaded stringly_conversions v0.1.1
[INFO] [stderr]   Downloaded web-sys v0.3.72
[INFO] [stderr]   Downloaded libc v0.2.161
[INFO] [stderr]   Downloaded amplify_num v0.5.3
[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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+8f43b85954d2f3d8fc00a7504c603e5ca9eb0695" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] beaa717f4ef0610779e5ba3d89adb9c9bb1cdfd8dc6249c95503426608fbad55
[INFO] running `Command { std: "docker" "start" "-a" "beaa717f4ef0610779e5ba3d89adb9c9bb1cdfd8dc6249c95503426608fbad55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "beaa717f4ef0610779e5ba3d89adb9c9bb1cdfd8dc6249c95503426608fbad55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "beaa717f4ef0610779e5ba3d89adb9c9bb1cdfd8dc6249c95503426608fbad55", kill_on_drop: false }`
[INFO] [stdout] beaa717f4ef0610779e5ba3d89adb9c9bb1cdfd8dc6249c95503426608fbad55
[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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+8f43b85954d2f3d8fc00a7504c603e5ca9eb0695" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e4fc7b3f2e39505e8fbe1458f6be60ed2d748ce144c3194bbb8307bebc032a7
[INFO] running `Command { std: "docker" "start" "-a" "7e4fc7b3f2e39505e8fbe1458f6be60ed2d748ce144c3194bbb8307bebc032a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.89
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde v1.0.214
[INFO] [stderr]    Compiling serde_json v1.0.132
[INFO] [stderr]     Checking ascii v1.1.0
[INFO] [stderr]     Checking amplify_num v0.5.3
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling amplify_syn v2.0.1
[INFO] [stderr]    Compiling amplify_derive v4.0.1
[INFO] [stderr]     Checking amplify v4.8.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.43s
[INFO] running `Command { std: "docker" "inspect" "7e4fc7b3f2e39505e8fbe1458f6be60ed2d748ce144c3194bbb8307bebc032a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e4fc7b3f2e39505e8fbe1458f6be60ed2d748ce144c3194bbb8307bebc032a7", kill_on_drop: false }`
[INFO] [stdout] 7e4fc7b3f2e39505e8fbe1458f6be60ed2d748ce144c3194bbb8307bebc032a7