[INFO] crate oftb 0.1.3 is already in cache
[INFO] checking oftb-0.1.3 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] extracting crate oftb 0.1.3 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate oftb 0.1.3 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate oftb 0.1.3
[INFO] finished tweaking crates.io crate oftb 0.1.3
[INFO] tweaked toml for crates.io crate oftb 0.1.3 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 46b0b77a8da128ebb55cc82114425f1b30a764b0358a00adeeeaebf0c57aab6e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "46b0b77a8da128ebb55cc82114425f1b30a764b0358a00adeeeaebf0c57aab6e"`
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking same-file v0.1.3
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking smallvec v0.4.5
[INFO] [stderr]     Checking gc v0.3.3
[INFO] [stderr]     Checking try_opt v0.1.1
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.10.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking encode_unicode v0.3.6
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]     Checking walkdir v1.0.7
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]    Compiling synstructure v0.5.2
[INFO] [stderr]     Checking itertools v0.6.5
[INFO] [stderr] error[E0606]: casting `f64` as `usize` is invalid
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/gc-0.3.3/src/gc.rs:98:36
[INFO] [stderr]    |
[INFO] [stderr] 98 |                     st.threshold = (st.bytes_allocated as f64 / USED_SPACE_RATIO) as usize
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]    Compiling gc_derive v0.3.1
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0606`.
[INFO] [stderr] error: could not compile `gc`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "46b0b77a8da128ebb55cc82114425f1b30a764b0358a00adeeeaebf0c57aab6e"`
[INFO] running `"docker" "rm" "-f" "46b0b77a8da128ebb55cc82114425f1b30a764b0358a00adeeeaebf0c57aab6e"`
[INFO] [stdout] 46b0b77a8da128ebb55cc82114425f1b30a764b0358a00adeeeaebf0c57aab6e