[INFO] crate pyflow 0.2.4 is already in cache
[INFO] checking pyflow-0.2.4 against master#0cbcb17d3306d6e22eafc2c05ce885db97d0189c for pr-68766
[INFO] extracting crate pyflow 0.2.4 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate pyflow 0.2.4 on toolchain 0cbcb17d3306d6e22eafc2c05ce885db97d0189c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+0cbcb17d3306d6e22eafc2c05ce885db97d0189c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate pyflow 0.2.4
[INFO] finished tweaking crates.io crate pyflow 0.2.4
[INFO] tweaked toml for crates.io crate pyflow 0.2.4 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate pyflow 0.2.4 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-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" "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] bf16896045410e55751deaf3853d166cf2e3e2ed7d35a985fcd3e732fc18cb54
[INFO] running `"docker" "start" "-a" "bf16896045410e55751deaf3853d166cf2e3e2ed7d35a985fcd3e732fc18cb54"`
[INFO] [stderr]    Compiling ring v0.16.9
[INFO] [stderr]     Checking try_from v0.3.2
[INFO] [stderr]    Compiling lzma-sys v0.1.15
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking tokio-executor v0.1.8
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking crossterm_utils v0.4.0
[INFO] [stderr]     Checking crossterm_utils v0.3.1
[INFO] [stderr]     Checking filetime v0.2.8
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking encoding_rs v0.8.20
[INFO] [stderr]     Checking xattr v0.2.2
[INFO] [stderr]     Checking crossbeam-utils v0.7.0
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]     Checking crossterm_cursor v0.3.1
[INFO] [stderr]     Checking crossterm_screen v0.3.2
[INFO] [stderr]     Checking crossterm_style v0.5.2
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]     Checking tokio-current-thread v0.1.6
[INFO] [stderr]     Checking tokio-timer v0.2.11
[INFO] [stderr]     Checking mio v0.6.20
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]     Checking directories v2.0.2
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking tar v0.4.26
[INFO] [stderr]     Checking crossterm_input v0.4.1
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking zip v0.5.3
[INFO] [stderr]     Checking crossbeam-epoch v0.8.0
[INFO] [stderr]     Checking crossterm_input v0.5.0
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking xz2 v0.1.6
[INFO] [stderr]     Checking crossbeam-deque v0.7.2
[INFO] [stderr]     Checking crossterm_cursor v0.4.0
[INFO] [stderr]     Checking tokio-reactor v0.1.10
[INFO] [stderr]     Checking tokio-threadpool v0.1.16
[INFO] [stderr]     Checking crossterm_terminal v0.3.2
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking crossterm v0.11.1
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking webpki v0.21.0
[INFO] [stderr]     Checking ct-logs v0.6.0
[INFO] [stderr]     Checking hyper v0.12.35
[INFO] [stderr]     Checking rustls v0.16.0
[INFO] [stderr]     Checking webpki-roots v0.17.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]     Checking tokio-rustls v0.10.2
[INFO] [stderr]     Checking hyper-rustls v0.17.1
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling structopt-derive v0.3.5
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking structopt v0.3.5
[INFO] [stderr]     Checking serde v1.0.103
[INFO] [stderr]     Checking serde_json v1.0.42
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking toml v0.5.5
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking reqwest v0.9.22
[INFO] [stderr]     Checking pyflow v0.2.4 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/util.rs:674:21
[INFO] [stderr]     |
[INFO] [stderr] 674 | /                     (println!(
[INFO] [stderr] 675 | |                         "Unable to match python version from python_version: {}",
[INFO] [stderr] 676 | |                         &rel.python_version
[INFO] [stderr] 677 | |                     ))
[INFO] [stderr]     | |______________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 674 |                     println!(
[INFO] [stderr] 675 |                         "Unable to match python version from python_version: {}",
[INFO] [stderr] 676 |                         &rel.python_version
[INFO] [stderr] 677 |                     )
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/util.rs:674:21
[INFO] [stderr]     |
[INFO] [stderr] 674 | /                     (println!(
[INFO] [stderr] 675 | |                         "Unable to match python version from python_version: {}",
[INFO] [stderr] 676 | |                         &rel.python_version
[INFO] [stderr] 677 | |                     ))
[INFO] [stderr]     | |______________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 674 |                     println!(
[INFO] [stderr] 675 |                         "Unable to match python version from python_version: {}",
[INFO] [stderr] 676 |                         &rel.python_version
[INFO] [stderr] 677 |                     )
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]     --> src/main.rs:1312:16
[INFO] [stderr]      |
[INFO] [stderr] 1312 |             Ok(f) => Config::from_pipfile(&PathBuf::from("Pipfile")).unwrap_or_default(),
[INFO] [stderr]      |                ^ help: consider prefixing with an underscore: `_f`
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]     --> src/main.rs:1312:16
[INFO] [stderr]      |
[INFO] [stderr] 1312 |             Ok(f) => Config::from_pipfile(&PathBuf::from("Pipfile")).unwrap_or_default(),
[INFO] [stderr]      |                ^ help: consider prefixing with an underscore: `_f`
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `key_re`
[INFO] [stderr]    --> src/files.rs:344:4
[INFO] [stderr]     |
[INFO] [stderr] 344 | fn key_re(key: &str) -> Regex {
[INFO] [stderr]     |    ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `key_re`
[INFO] [stderr]    --> src/files.rs:344:4
[INFO] [stderr]     |
[INFO] [stderr] 344 | fn key_re(key: &str) -> Regex {
[INFO] [stderr]     |    ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 02s
[INFO] running `"docker" "inspect" "bf16896045410e55751deaf3853d166cf2e3e2ed7d35a985fcd3e732fc18cb54"`
[INFO] running `"docker" "rm" "-f" "bf16896045410e55751deaf3853d166cf2e3e2ed7d35a985fcd3e732fc18cb54"`
[INFO] [stdout] bf16896045410e55751deaf3853d166cf2e3e2ed7d35a985fcd3e732fc18cb54