[INFO] updating cached repository https://github.com/alekratz/file-lang
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1e07753049d39882ee6e9715867c02e3ff86bbdd
[INFO] checking alekratz/file-lang against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falekratz%2Ffile-lang" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alekratz/file-lang on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/alekratz/file-lang
[INFO] finished tweaking git repo https://github.com/alekratz/file-lang
[INFO] tweaked toml for git repo https://github.com/alekratz/file-lang written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/alekratz/file-lang already has a lockfile, it will not be regenerated
[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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cd9bc7b8a37416df3a6e07013af8992ae3daf445926cb7bfd803f1c4065f9fa0
[INFO] running `"docker" "start" "-a" "cd9bc7b8a37416df3a6e07013af8992ae3daf445926cb7bfd803f1c4065f9fa0"`
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling cc v1.0.42
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]    Compiling doc-comment v0.3.1
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.3
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling quote v0.4.2
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]     Checking backtrace v0.3.37
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling shrinkwraprs v0.2.1
[INFO] [stderr]    Compiling structopt-derive v0.3.1
[INFO] [stderr]     Checking structopt v0.3.1
[INFO] [stderr]    Compiling snafu-derive v0.5.0
[INFO] [stderr]    Compiling derivative v1.0.3
[INFO] [stderr]     Checking snafu v0.5.0
[INFO] [stderr] error[E0606]: casting `f32` as `usize` is invalid
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/snafu-0.5.0/src/backtrace_shim.rs:28:21
[INFO] [stderr]    |
[INFO] [stderr] 28 |         let width = (frames.len() as f32).log10().floor() as usize + 1;
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[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 `snafu`.
[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" "cd9bc7b8a37416df3a6e07013af8992ae3daf445926cb7bfd803f1c4065f9fa0"`
[INFO] running `"docker" "rm" "-f" "cd9bc7b8a37416df3a6e07013af8992ae3daf445926cb7bfd803f1c4065f9fa0"`
[INFO] [stdout] cd9bc7b8a37416df3a6e07013af8992ae3daf445926cb7bfd803f1c4065f9fa0