[INFO] cloning repository https://github.com/amgarrett09/ViHex
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/amgarrett09/ViHex" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famgarrett09%2FViHex", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famgarrett09%2FViHex'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4c172a98947e5de716b9920ee4f86e3e73cad1e2
[INFO] checking amgarrett09/ViHex against master#6526e5c772f2da07db745c94ca6bb0a591a39ba4 for pr-80920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famgarrett09%2FViHex" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/amgarrett09/ViHex on toolchain 6526e5c772f2da07db745c94ca6bb0a591a39ba4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/amgarrett09/ViHex
[INFO] removed path dependency cursive from git repo https://github.com/amgarrett09/ViHex
[INFO] finished tweaking git repo https://github.com/amgarrett09/ViHex
[INFO] tweaked toml for git repo https://github.com/amgarrett09/ViHex written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/amgarrett09/ViHex already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (cursive) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-12/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (cursive) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4aa12caca7dcbafcc7523314c51e1026515737b367b392e369f0ebc988ac13b9
[INFO] running `Command { std: "docker" "start" "-a" "4aa12caca7dcbafcc7523314c51e1026515737b367b392e369f0ebc988ac13b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4aa12caca7dcbafcc7523314c51e1026515737b367b392e369f0ebc988ac13b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4aa12caca7dcbafcc7523314c51e1026515737b367b392e369f0ebc988ac13b9", kill_on_drop: false }`
[INFO] [stdout] 4aa12caca7dcbafcc7523314c51e1026515737b367b392e369f0ebc988ac13b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0f92cf0e02ad2183c440d1cfb5cfc511158f0a4f9825bd1df6ced08fb847711
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a0f92cf0e02ad2183c440d1cfb5cfc511158f0a4f9825bd1df6ced08fb847711", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (cursive) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling getrandom v0.2.1
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling log v0.4.13
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]     Checking array-macro v1.0.5
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking unicode-segmentation v1.7.1
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking signal-hook v0.1.17
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling ncurses v5.100.0
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]    Compiling const-random-macro v0.1.13
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking const-random v0.1.13
[INFO] [stderr]     Checking ahash v0.4.7
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]     Checking num v0.3.1
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling enum-map-derive v0.4.6
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]     Checking enum-map v0.6.4
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling enumset_derive v0.5.0
[INFO] [stdout] error[E0432]: unresolved import `syn::export`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/enumset_derive-0.5.0/src/lib.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 | use syn::export::Span;
[INFO] [stdout]    |          ^^^^^^ could not find `export` in `syn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `enumset_derive`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "a0f92cf0e02ad2183c440d1cfb5cfc511158f0a4f9825bd1df6ced08fb847711", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0f92cf0e02ad2183c440d1cfb5cfc511158f0a4f9825bd1df6ced08fb847711", kill_on_drop: false }`
[INFO] [stdout] a0f92cf0e02ad2183c440d1cfb5cfc511158f0a4f9825bd1df6ced08fb847711