[INFO] crate flowc 0.8.2 is already in cache
[INFO] checking flowc-0.8.2 against master#0cbcb17d3306d6e22eafc2c05ce885db97d0189c for pr-68746
[INFO] extracting crate flowc 0.8.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate flowc 0.8.2 on toolchain 0cbcb17d3306d6e22eafc2c05ce885db97d0189c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+0cbcb17d3306d6e22eafc2c05ce885db97d0189c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate flowc 0.8.2
[INFO] finished tweaking crates.io crate flowc 0.8.2
[INFO] tweaked toml for crates.io crate flowc 0.8.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate flowc 0.8.2 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+0cbcb17d3306d6e22eafc2c05ce885db97d0189c" "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" "+0cbcb17d3306d6e22eafc2c05ce885db97d0189c" "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] 90915c0b5e7f17de61847b0efa543bd795aea08b4453d6ccfdf60729c75d7166
[INFO] running `"docker" "start" "-a" "90915c0b5e7f17de61847b0efa543bd795aea08b4453d6ccfdf60729c75d7166"`
[INFO] [stderr]     Checking strfmt v0.1.6
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]     Checking serde_yaml v0.8.11
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking erased-serde v0.3.9
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]    Compiling shrinkwraprs v0.2.1
[INFO] [stderr]     Checking flowclib v0.8.2
[INFO] [stderr]     Checking flowc v0.8.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/main.rs:42:1
[INFO] [stderr]    |
[INFO] [stderr] 42 | / error_chain! {
[INFO] [stderr] 43 | |     types {
[INFO] [stderr] 44 | |         Error, ErrorKind, ResultExt, Result;
[INFO] [stderr] 45 | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 52 | |     }
[INFO] [stderr] 53 | | }
[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::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/main.rs:42:1
[INFO] [stderr]    |
[INFO] [stderr] 42 | / error_chain! {
[INFO] [stderr] 43 | |     types {
[INFO] [stderr] 44 | |         Error, ErrorKind, ResultExt, Result;
[INFO] [stderr] 45 | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 52 | |     }
[INFO] [stderr] 53 | | }
[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::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/main.rs:42:1
[INFO] [stderr]    |
[INFO] [stderr] 42 | / error_chain! {
[INFO] [stderr] 43 | |     types {
[INFO] [stderr] 44 | |         Error, ErrorKind, ResultExt, Result;
[INFO] [stderr] 45 | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 52 | |     }
[INFO] [stderr] 53 | | }
[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::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/main.rs:42:1
[INFO] [stderr]    |
[INFO] [stderr] 42 | / error_chain! {
[INFO] [stderr] 43 | |     types {
[INFO] [stderr] 44 | |         Error, ErrorKind, ResultExt, Result;
[INFO] [stderr] 45 | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 52 | |     }
[INFO] [stderr] 53 | | }
[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::description': use the Display impl or to_string()
[INFO] [stderr]   --> tests/execution_tests.rs:32:1
[INFO] [stderr]    |
[INFO] [stderr] 32 | / error_chain! {
[INFO] [stderr] 33 | |     foreign_links {
[INFO] [stderr] 34 | |         Provider(::provider::errors::Error);
[INFO] [stderr] 35 | |         Compiler(::flowclib::errors::Error);
[INFO] [stderr] 36 | |         Io(::std::io::Error);
[INFO] [stderr] 37 | |     }
[INFO] [stderr] 38 | | }
[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::description': use the Display impl or to_string()
[INFO] [stderr]   --> tests/execution_tests.rs:32:1
[INFO] [stderr]    |
[INFO] [stderr] 32 | / error_chain! {
[INFO] [stderr] 33 | |     foreign_links {
[INFO] [stderr] 34 | |         Provider(::provider::errors::Error);
[INFO] [stderr] 35 | |         Compiler(::flowclib::errors::Error);
[INFO] [stderr] 36 | |         Io(::std::io::Error);
[INFO] [stderr] 37 | |     }
[INFO] [stderr] 38 | | }
[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 21.94s
[INFO] running `"docker" "inspect" "90915c0b5e7f17de61847b0efa543bd795aea08b4453d6ccfdf60729c75d7166"`
[INFO] running `"docker" "rm" "-f" "90915c0b5e7f17de61847b0efa543bd795aea08b4453d6ccfdf60729c75d7166"`
[INFO] [stdout] 90915c0b5e7f17de61847b0efa543bd795aea08b4453d6ccfdf60729c75d7166