[INFO] cloning repository https://github.com/MrElectrify/virtual-fs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MrElectrify/virtual-fs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMrElectrify%2Fvirtual-fs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMrElectrify%2Fvirtual-fs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3c7567b226ed4a3b65c2786e126bbd5af059b2ec
[INFO] checking MrElectrify/virtual-fs against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMrElectrify%2Fvirtual-fs" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/MrElectrify/virtual-fs
[INFO] finished tweaking git repo https://github.com/MrElectrify/virtual-fs
[INFO] tweaked toml for git repo https://github.com/MrElectrify/virtual-fs written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/MrElectrify/virtual-fs on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/MrElectrify/virtual-fs 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mockall_derive v0.12.1
[INFO] [stderr]   Downloaded normalize-path v0.2.1
[INFO] [stderr]   Downloaded serde_derive v1.0.195
[INFO] [stderr]   Downloaded fragile v2.0.0
[INFO] [stderr]   Downloaded downcast v0.11.0
[INFO] [stderr]   Downloaded mockall v0.12.1
[INFO] [stderr]   Downloaded path-slash v0.2.1
[INFO] [stderr]   Downloaded duplicate v1.0.0
[INFO] [stderr]   Downloaded serde v1.0.195
[INFO] [stderr]   Downloaded xattr v1.1.1
[INFO] [stderr]   Downloaded time v0.3.31
[INFO] [stderr]   Downloaded xz v0.1.0
[INFO] [stderr]   Downloaded itertools v0.12.0
[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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 78b3bcba395e212ef979b133248e1cec285ba93952cff0103905a006164f81db
[INFO] running `Command { std: "docker" "start" "-a" "78b3bcba395e212ef979b133248e1cec285ba93952cff0103905a006164f81db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "78b3bcba395e212ef979b133248e1cec285ba93952cff0103905a006164f81db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78b3bcba395e212ef979b133248e1cec285ba93952cff0103905a006164f81db", kill_on_drop: false }`
[INFO] [stdout] 78b3bcba395e212ef979b133248e1cec285ba93952cff0103905a006164f81db
[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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 929e6bcf2937131893a519ab9063efec3f7a8c2ad29b8f15719fd62cc35c782a
[INFO] running `Command { std: "docker" "start" "-a" "929e6bcf2937131893a519ab9063efec3f7a8c2ad29b8f15719fd62cc35c782a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.152
[INFO] [stderr]    Compiling pkg-config v0.3.28
[INFO] [stderr]     Checking cpufeatures v0.2.12
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking generic-array v0.14.7
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking powerfmt v0.2.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking time-core v0.1.2
[INFO] [stderr]     Checking predicates v3.1.0
[INFO] [stderr]     Checking deranged v0.3.11
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking time v0.3.31
[INFO] [stderr]     Checking downcast v0.11.0
[INFO] [stderr]    Compiling jobserver v0.1.27
[INFO] [stderr]     Checking fragile v2.0.0
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking inout v0.1.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking cipher v0.4.4
[INFO] [stderr]     Checking itertools v0.12.0
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking xattr v1.1.1
[INFO] [stderr]     Checking filetime v0.2.23
[INFO] [stderr]     Checking parking_lot_core v0.9.9
[INFO] [stderr]     Checking aes v0.8.3
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]     Checking tar v0.4.40
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling duplicate v1.0.0
[INFO] [stderr]     Checking path-slash v0.2.1
[INFO] [stderr]     Checking pbkdf2 v0.11.0
[INFO] [stderr]     Checking normalize-path v0.2.1
[INFO] [stderr]    Compiling zstd-sys v2.0.9+zstd.1.5.5
[INFO] [stderr]    Compiling bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]    Compiling lzma-sys v0.1.20
[INFO] [stderr]     Checking xz2 v0.1.7
[INFO] [stderr]     Checking xz v0.1.0
[INFO] [stderr]     Checking bzip2 v0.4.4
[INFO] [stderr]    Compiling enumflags2_derive v0.7.8
[INFO] [stderr]    Compiling mockall_derive v0.12.1
[INFO] [stderr]     Checking enumflags2 v0.7.8
[INFO] [stderr]    Compiling zstd-safe v5.0.2+zstd.1.5.2
[INFO] [stderr]     Checking mockall v0.12.1
[INFO] [stderr]     Checking zstd v0.11.2+zstd.1.5.2
[INFO] [stderr]     Checking zip v0.6.6
[INFO] [stderr]     Checking virtual-filesystem v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 36.68s
[INFO] running `Command { std: "docker" "inspect" "929e6bcf2937131893a519ab9063efec3f7a8c2ad29b8f15719fd62cc35c782a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "929e6bcf2937131893a519ab9063efec3f7a8c2ad29b8f15719fd62cc35c782a", kill_on_drop: false }`
[INFO] [stdout] 929e6bcf2937131893a519ab9063efec3f7a8c2ad29b8f15719fd62cc35c782a