[INFO] fetching crate mist-core 0.9.0...
[INFO] checking mist-core-0.9.0 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate mist-core 0.9.0 into /workspace/builds/worker-71/source
[INFO] validating manifest of crates.io crate mist-core 0.9.0 on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mist-core 0.9.0
[INFO] finished tweaking crates.io crate mist-core 0.9.0
[INFO] tweaked toml for crates.io crate mist-core 0.9.0 written to /workspace/builds/worker-71/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "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" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "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-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7310bad1d97128176b919829ac757b849ffcdd2328e10a775d10142f0cb1de9f
[INFO] running `Command { std: "docker" "start" "-a" "7310bad1d97128176b919829ac757b849ffcdd2328e10a775d10142f0cb1de9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7310bad1d97128176b919829ac757b849ffcdd2328e10a775d10142f0cb1de9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7310bad1d97128176b919829ac757b849ffcdd2328e10a775d10142f0cb1de9f", kill_on_drop: false }`
[INFO] [stdout] 7310bad1d97128176b919829ac757b849ffcdd2328e10a775d10142f0cb1de9f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a997d1d498128cfca8a8ec4cf1a5f4b90bb3fa581c6c40ec092472ecd802e4cf
[INFO] running `Command { std: "docker" "start" "-a" "a997d1d498128cfca8a8ec4cf1a5f4b90bb3fa581c6c40ec092472ecd802e4cf", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling encoding_rs v0.8.28
[INFO] [stderr]    Compiling unicode-joining-type v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling unicode-general-category v0.3.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]     Checking alloc-no-stdlib v2.0.3
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking glyph-names v0.1.0
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking ucd-trie v0.1.3
[INFO] [stderr]     Checking xmlparser v0.13.3
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]     Checking bitreader v0.3.4
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking brotli-decompressor v2.3.2
[INFO] [stderr]     Checking tinyvec v1.4.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling rental-impl v0.5.5
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mmapio v0.9.1
[INFO] [stderr]    Compiling tinyfiledialogs v3.8.3
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking allsorts-rental v0.5.6
[INFO] [stderr]     Checking allsorts_no_std v0.5.2
[INFO] [stderr]     Checking ron v0.6.5
[INFO] [stderr]     Checking rust-fontconfig v0.1.5
[INFO] [stderr]     Checking mist-core v0.9.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 47.04s
[INFO] running `Command { std: "docker" "inspect" "a997d1d498128cfca8a8ec4cf1a5f4b90bb3fa581c6c40ec092472ecd802e4cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a997d1d498128cfca8a8ec4cf1a5f4b90bb3fa581c6c40ec092472ecd802e4cf", kill_on_drop: false }`
[INFO] [stdout] a997d1d498128cfca8a8ec4cf1a5f4b90bb3fa581c6c40ec092472ecd802e4cf