[INFO] fetching crate pax-core 0.10.7...
[INFO] checking pax-core-0.10.7 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate pax-core 0.10.7 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate pax-core 0.10.7 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pax-core 0.10.7
[INFO] finished tweaking crates.io crate pax-core 0.10.7
[INFO] tweaked toml for crates.io crate pax-core 0.10.7 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 113 packages
[INFO] [stderr]       Adding associative-cache v1.0.1 (latest: v2.0.0)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding cairo-rs v0.16.7 (latest: v0.19.2)
[INFO] [stderr]       Adding cairo-sys-rs v0.16.3 (latest: v0.19.2)
[INFO] [stderr]       Adding core-graphics v0.22.3 (latest: v0.23.1)
[INFO] [stderr]       Adding core-text v19.2.0 (latest: v20.1.0)
[INFO] [stderr]       Adding error-chain v0.10.0 (latest: v0.12.4)
[INFO] [stderr]       Adding foreign-types v0.3.2 (latest: v0.5.0)
[INFO] [stderr]       Adding foreign-types-shared v0.1.1 (latest: v0.3.1)
[INFO] [stderr]       Adding gio v0.16.7 (latest: v0.19.3)
[INFO] [stderr]       Adding gio-sys v0.16.3 (latest: v0.19.0)
[INFO] [stderr]       Adding glib v0.16.9 (latest: v0.19.3)
[INFO] [stderr]       Adding glib-macros v0.16.8 (latest: v0.19.3)
[INFO] [stderr]       Adding glib-sys v0.16.3 (latest: v0.19.0)
[INFO] [stderr]       Adding gobject-sys v0.16.3 (latest: v0.19.0)
[INFO] [stderr]       Adding heck v0.4.1 (latest: v0.5.0)
[INFO] [stderr]       Adding kurbo v0.9.5 (latest: v0.11.0)
[INFO] [stderr]       Adding pango v0.16.5 (latest: v0.19.3)
[INFO] [stderr]       Adding pango-sys v0.16.3 (latest: v0.19.0)
[INFO] [stderr]       Adding pangocairo v0.16.3 (latest: v0.19.2)
[INFO] [stderr]       Adding pangocairo-sys v0.16.3 (latest: v0.19.0)
[INFO] [stderr]       Adding pax-message v0.10.10 (latest: v0.12.8)
[INFO] [stderr]       Adding pax-runtime-api v0.10.10 (latest: v0.12.8)
[INFO] [stderr]       Adding proc-macro-crate v1.3.1 (latest: v3.1.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding toml_edit v0.19.15 (latest: v0.22.9)
[INFO] [stderr]       Adding uuid v0.8.2 (latest: v1.8.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding winnow v0.5.40 (latest: v0.6.5)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pax-message v0.10.10
[INFO] [stderr]   Downloaded pax-properties-coproduct v0.10.10
[INFO] [stderr]   Downloaded mut_static v5.0.0
[INFO] [stderr]   Downloaded pax-runtime-api v0.10.10
[INFO] [stderr]   Downloaded glib-macros v0.16.8
[INFO] [stderr]   Downloaded glib v0.16.9
[INFO] [stderr]   Downloaded kurbo v0.9.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 89701395b1cb263d41340eff34ba7984f36f1f92b2a3b20bada6d77e7b2969fd
[INFO] running `Command { std: "docker" "start" "-a" "89701395b1cb263d41340eff34ba7984f36f1f92b2a3b20bada6d77e7b2969fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89701395b1cb263d41340eff34ba7984f36f1f92b2a3b20bada6d77e7b2969fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89701395b1cb263d41340eff34ba7984f36f1f92b2a3b20bada6d77e7b2969fd", kill_on_drop: false }`
[INFO] [stdout] 89701395b1cb263d41340eff34ba7984f36f1f92b2a3b20bada6d77e7b2969fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab3d3cff6cb3b73bfbe6a7294a8b147ae247fb7397ac6d92abc42d152c91e3be
[INFO] running `Command { std: "docker" "start" "-a" "ab3d3cff6cb3b73bfbe6a7294a8b147ae247fb7397ac6d92abc42d152c91e3be", kill_on_drop: false }`
[INFO] [stderr]    Compiling target-lexicon v0.12.14
[INFO] [stderr]    Compiling winnow v0.6.5
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling version-compare v0.2.0
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.92
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling bumpalo v3.15.4
[INFO] [stderr]     Checking unic-common v0.9.0
[INFO] [stderr]    Compiling gio v0.16.7
[INFO] [stderr]     Checking unic-char-range v0.9.0
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]     Checking unic-ucd-version v0.9.0
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking unic-char-property v0.9.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.92
[INFO] [stderr]     Checking unic-ucd-bidi v0.9.0
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking kurbo v0.9.5
[INFO] [stderr]     Checking unicode-segmentation v1.11.0
[INFO] [stderr]     Checking xi-unicode v0.3.0
[INFO] [stderr]     Checking mut_static v5.0.0
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking unic-bidi v0.9.0
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.92
[INFO] [stderr]    Compiling cfg-expr v0.15.7
[INFO] [stderr]     Checking piet v0.6.2
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.92
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.92
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]    Compiling toml_datetime v0.6.5
[INFO] [stderr]    Compiling serde_spanned v0.6.5
[INFO] [stderr]    Compiling toml_edit v0.22.9
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]     Checking pax-message v0.10.10
[INFO] [stderr]     Checking pax-runtime-api v0.10.10
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]     Checking pax-properties-coproduct v0.10.10
[INFO] [stderr]    Compiling toml v0.8.12
[INFO] [stderr]    Compiling glib-macros v0.16.8
[INFO] [stderr]    Compiling system-deps v6.2.2
[INFO] [stderr]    Compiling glib-sys v0.16.3
[INFO] [stderr]    Compiling gobject-sys v0.16.3
[INFO] [stderr]    Compiling gio-sys v0.16.3
[INFO] [stderr]    Compiling pango-sys v0.16.3
[INFO] [stderr]    Compiling cairo-sys-rs v0.16.3
[INFO] [stderr]    Compiling pangocairo-sys v0.16.3
[INFO] [stderr]     Checking glib v0.16.9
[INFO] [stderr]     Checking cairo-rs v0.16.7
[INFO] [stderr]     Checking pango v0.16.5
[INFO] [stderr]     Checking pangocairo v0.16.3
[INFO] [stderr]     Checking piet-cairo v0.6.2
[INFO] [stderr]     Checking piet-common v0.6.2
[INFO] [stderr]     Checking pax-core v0.10.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Option` is imported redundantly
[INFO] [stdout]  --> src/slot.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use core::option::Option;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Option` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Some` is imported redundantly
[INFO] [stdout]  --> src/slot.rs:3:34
[INFO] [stdout]   |
[INFO] [stdout] 3 | use core::option::Option::{None, Some};
[INFO] [stdout]   |                                  ^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Some` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Option` is imported redundantly
[INFO] [stdout]  --> src/slot.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use core::option::Option;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Option` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Some` is imported redundantly
[INFO] [stdout]  --> src/slot.rs:3:34
[INFO] [stdout]   |
[INFO] [stdout] 3 | use core::option::Option::{None, Some};
[INFO] [stdout]   |                                  ^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Some` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.67s
[INFO] running `Command { std: "docker" "inspect" "ab3d3cff6cb3b73bfbe6a7294a8b147ae247fb7397ac6d92abc42d152c91e3be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab3d3cff6cb3b73bfbe6a7294a8b147ae247fb7397ac6d92abc42d152c91e3be", kill_on_drop: false }`
[INFO] [stdout] ab3d3cff6cb3b73bfbe6a7294a8b147ae247fb7397ac6d92abc42d152c91e3be