[INFO] fetching crate boolean 0.3.0...
[INFO] checking boolean-0.3.0 against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] extracting crate boolean 0.3.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate boolean 0.3.0 on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate boolean 0.3.0
[INFO] finished tweaking crates.io crate boolean 0.3.0
[INFO] tweaked toml for crates.io crate boolean 0.3.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded parameterized v0.1.1
[INFO] [stderr]   Downloaded parameterized-macro v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 17a9a9f69d0f33a03a27463e2c8c77bf3c0113ad5e8b994c487a591558f57463
[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" "17a9a9f69d0f33a03a27463e2c8c77bf3c0113ad5e8b994c487a591558f57463", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17a9a9f69d0f33a03a27463e2c8c77bf3c0113ad5e8b994c487a591558f57463", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17a9a9f69d0f33a03a27463e2c8c77bf3c0113ad5e8b994c487a591558f57463", kill_on_drop: false }`
[INFO] [stdout] 17a9a9f69d0f33a03a27463e2c8c77bf3c0113ad5e8b994c487a591558f57463
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 22b6adc32531750d2707026caaedf771869da3d38ef15f9bd5881a790231198a
[INFO] running `Command { std: "docker" "start" "-a" "22b6adc32531750d2707026caaedf771869da3d38ef15f9bd5881a790231198a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking boolean v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling parameterized-macro v0.1.1
[INFO] [stdout] error[E0433]: failed to resolve: could not find `export` in `syn`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/parameterized-macro-0.1.1/src/lib.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | use syn::export::fmt::Display;
[INFO] [stdout]    |          ^^^^^^ could not find `export` in `syn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `syn::export`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/parameterized-macro-0.1.1/src/attribute.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | use syn::export::Formatter;
[INFO] [stdout]   |          ^^^^^^ could not find `export` in `syn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Display` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/parameterized-macro-0.1.1/src/lib.rs:182:37
[INFO] [stdout]     |
[INFO] [stdout] 182 | fn panic_on_inequal_length<K: Ord + Display, V>(map: impl IntoIterator<Item = (K, V)>) {
[INFO] [stdout]     |                                     ^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 5   | use core::fmt::Display;
[INFO] [stdout]     |
[INFO] [stdout] 5   | use std::fmt::Display;
[INFO] [stdout]     |
[INFO] [stdout] 5   | use syn::__private::fmt::Display;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `parameterized-macro`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "22b6adc32531750d2707026caaedf771869da3d38ef15f9bd5881a790231198a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22b6adc32531750d2707026caaedf771869da3d38ef15f9bd5881a790231198a", kill_on_drop: false }`
[INFO] [stdout] 22b6adc32531750d2707026caaedf771869da3d38ef15f9bd5881a790231198a