[INFO] updating cached repository https://github.com/kcuzner/backctl-rs
[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] 36a16f3cf57f9f6595c55261b6651798aaff09c5
[INFO] checking kcuzner/backctl-rs against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkcuzner%2Fbackctl-rs" "/workspace/builds/worker-11/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kcuzner/backctl-rs on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/kcuzner/backctl-rs
[INFO] finished tweaking git repo https://github.com/kcuzner/backctl-rs
[INFO] tweaked toml for git repo https://github.com/kcuzner/backctl-rs written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/kcuzner/backctl-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "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] c9391fec43037c7f03fdfc1a76bc936924be32f39dc177901eef05d694e5d2e3
[INFO] running `"docker" "start" "-a" "c9391fec43037c7f03fdfc1a76bc936924be32f39dc177901eef05d694e5d2e3"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking backtrace-sys v0.1.24
[INFO] [stderr]     Checking libudev-sys v0.1.4
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking udev v0.2.0
[INFO] [stderr]     Checking error-chain v0.12.0
[INFO] [stderr]     Checking backctl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `SubCommand`
[INFO] [stderr]  --> src/main.rs:8:22
[INFO] [stderr]   |
[INFO] [stderr] 8 | use clap::{App, Arg, SubCommand};
[INFO] [stderr]   |                      ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `SubCommand`
[INFO] [stderr]  --> src/main.rs:8:22
[INFO] [stderr]   |
[INFO] [stderr] 8 | use clap::{App, Arg, SubCommand};
[INFO] [stderr]   |                      ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | / error_chain! {
[INFO] [stderr] 15 | |     foreign_links {
[INFO] [stderr] 16 | |         Udev(::udev::Error);
[INFO] [stderr] 17 | |         Io(::io::Error);
[INFO] [stderr] 18 | |         ParseInt(::num::ParseIntError);
[INFO] [stderr] 19 | |     }
[INFO] [stderr] 20 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | / error_chain! {
[INFO] [stderr] 15 | |     foreign_links {
[INFO] [stderr] 16 | |         Udev(::udev::Error);
[INFO] [stderr] 17 | |         Io(::io::Error);
[INFO] [stderr] 18 | |         ParseInt(::num::ParseIntError);
[INFO] [stderr] 19 | |     }
[INFO] [stderr] 20 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | / error_chain! {
[INFO] [stderr] 15 | |     foreign_links {
[INFO] [stderr] 16 | |         Udev(::udev::Error);
[INFO] [stderr] 17 | |         Io(::io::Error);
[INFO] [stderr] 18 | |         ParseInt(::num::ParseIntError);
[INFO] [stderr] 19 | |     }
[INFO] [stderr] 20 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | / error_chain! {
[INFO] [stderr] 15 | |     foreign_links {
[INFO] [stderr] 16 | |         Udev(::udev::Error);
[INFO] [stderr] 17 | |         Io(::io::Error);
[INFO] [stderr] 18 | |         ParseInt(::num::ParseIntError);
[INFO] [stderr] 19 | |     }
[INFO] [stderr] 20 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.91s
[INFO] running `"docker" "inspect" "c9391fec43037c7f03fdfc1a76bc936924be32f39dc177901eef05d694e5d2e3"`
[INFO] running `"docker" "rm" "-f" "c9391fec43037c7f03fdfc1a76bc936924be32f39dc177901eef05d694e5d2e3"`
[INFO] [stdout] c9391fec43037c7f03fdfc1a76bc936924be32f39dc177901eef05d694e5d2e3