[INFO] crate pypackage 0.0.3 is already in cache
[INFO] checking pypackage-0.0.3 against try#8a5e87609850cdd8679aada01eb0f3062f254ca8 for pr-71140
[INFO] extracting crate pypackage 0.0.3 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate pypackage 0.0.3 on toolchain 8a5e87609850cdd8679aada01eb0f3062f254ca8
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate pypackage 0.0.3
[INFO] finished tweaking crates.io crate pypackage 0.0.3
[INFO] tweaked toml for crates.io crate pypackage 0.0.3 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate pypackage 0.0.3 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "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" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "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] ca967697e0a38f4971c76e025f06fef2cb2bb69a92ce5a53e5417e55ccd5deb3
[INFO] running `"docker" "start" "-a" "ca967697e0a38f4971c76e025f06fef2cb2bb69a92ce5a53e5417e55ccd5deb3"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde v1.0.98
[INFO] [stderr]    Compiling syn v1.0.1
[INFO] [stderr]     Checking spin v0.5.1
[INFO] [stderr]    Compiling ring v0.16.7
[INFO] [stderr]    Compiling rust-lzma v0.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.0
[INFO] [stderr]     Checking crossterm_utils v0.2.4
[INFO] [stderr]     Checking term_size v0.3.1
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling hyper v0.12.33
[INFO] [stderr]     Checking error-chain v0.12.1
[INFO] [stderr]    Compiling serde_derive v1.0.98
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking crossterm_screen v0.2.5
[INFO] [stderr]     Checking crossterm_cursor v0.2.6
[INFO] [stderr]     Checking crossterm_style v0.4.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking crossterm_input v0.3.9
[INFO] [stderr]     Checking crossterm_terminal v0.2.6
[INFO] [stderr]     Checking publicsuffix v1.5.2
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking crossterm v0.10.2
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling quote v1.0.0
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking tokio-threadpool v0.1.15
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling structopt-derive v0.3.1
[INFO] [stderr]     Checking structopt v0.3.1
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking toml v0.5.3
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking reqwest v0.9.19
[INFO] [stderr]     Checking pypackage v0.0.3 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/main.rs:487:40
[INFO] [stderr]     |
[INFO] [stderr] 487 | fn read_lock(filename: &str) -> Result<(Lock), Box<dyn Error>> {
[INFO] [stderr]     |                                        ^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/main.rs:501:50
[INFO] [stderr]     |
[INFO] [stderr] 501 | fn os_from_wheel_fname(filename: &str) -> Result<(Os), dep_types::DependencyError> {
[INFO] [stderr]     |                                                  ^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/main.rs:585:25
[INFO] [stderr]     |
[INFO] [stderr] 585 | /                         (println!(
[INFO] [stderr] 586 | |                             "Unable to match python version from python_version: {}",
[INFO] [stderr] 587 | |                             &rel.python_version
[INFO] [stderr] 588 | |                         ))
[INFO] [stderr]     | |__________________________^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 585 |                         println!(
[INFO] [stderr] 586 |                             "Unable to match python version from python_version: {}",
[INFO] [stderr] 587 |                             &rel.python_version
[INFO] [stderr] 588 |                         )
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/main.rs:487:40
[INFO] [stderr]     |
[INFO] [stderr] 487 | fn read_lock(filename: &str) -> Result<(Lock), Box<dyn Error>> {
[INFO] [stderr]     |                                        ^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/main.rs:501:50
[INFO] [stderr]     |
[INFO] [stderr] 501 | fn os_from_wheel_fname(filename: &str) -> Result<(Os), dep_types::DependencyError> {
[INFO] [stderr]     |                                                  ^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/main.rs:585:25
[INFO] [stderr]     |
[INFO] [stderr] 585 | /                         (println!(
[INFO] [stderr] 586 | |                             "Unable to match python version from python_version: {}",
[INFO] [stderr] 587 | |                             &rel.python_version
[INFO] [stderr] 588 | |                         ))
[INFO] [stderr]     | |__________________________^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 585 |                         println!(
[INFO] [stderr] 586 |                             "Unable to match python version from python_version: {}",
[INFO] [stderr] 587 |                             &rel.python_version
[INFO] [stderr] 588 |                         )
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vers_cache`
[INFO] [stderr]    --> src/dep_resolution.rs:441:5
[INFO] [stderr]     |
[INFO] [stderr] 441 |     vers_cache: &HashMap<String, (String, Version, Vec<Version>)>,
[INFO] [stderr]     |     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_vers_cache`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `all_deps`
[INFO] [stderr]    --> src/dep_resolution.rs:443:5
[INFO] [stderr]     |
[INFO] [stderr] 443 |     all_deps: &[Dependency],
[INFO] [stderr]     |     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_all_deps`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `names`
[INFO] [stderr]    --> src/dep_resolution.rs:586:17
[INFO] [stderr]     |
[INFO] [stderr] 586 |             let names: Vec<String> = deps.iter().map(|d| d.version.to_string()).collect();
[INFO] [stderr]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_names`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vers_cache`
[INFO] [stderr]    --> src/dep_resolution.rs:441:5
[INFO] [stderr]     |
[INFO] [stderr] 441 |     vers_cache: &HashMap<String, (String, Version, Vec<Version>)>,
[INFO] [stderr]     |     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_vers_cache`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `all_deps`
[INFO] [stderr]    --> src/dep_resolution.rs:443:5
[INFO] [stderr]     |
[INFO] [stderr] 443 |     all_deps: &[Dependency],
[INFO] [stderr]     |     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_all_deps`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `names`
[INFO] [stderr]    --> src/dep_resolution.rs:586:17
[INFO] [stderr]     |
[INFO] [stderr] 586 |             let names: Vec<String> = deps.iter().map(|d| d.version.to_string()).collect();
[INFO] [stderr]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_names`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Ubuntu`
[INFO] [stderr]   --> src/py_versions.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 |     Ubuntu,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Windows`
[INFO] [stderr]   --> src/py_versions.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 68 |     Windows,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Mac`
[INFO] [stderr]   --> src/py_versions.rs:69:5
[INFO] [stderr]    |
[INFO] [stderr] 69 |     Mac,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Ubuntu`
[INFO] [stderr]   --> src/py_versions.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 |     Ubuntu,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Windows`
[INFO] [stderr]   --> src/py_versions.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 68 |     Windows,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Mac`
[INFO] [stderr]   --> src/py_versions.rs:69:5
[INFO] [stderr]    |
[INFO] [stderr] 69 |     Mac,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 15s
[INFO] running `"docker" "inspect" "ca967697e0a38f4971c76e025f06fef2cb2bb69a92ce5a53e5417e55ccd5deb3"`
[INFO] running `"docker" "rm" "-f" "ca967697e0a38f4971c76e025f06fef2cb2bb69a92ce5a53e5417e55ccd5deb3"`
[INFO] [stdout] ca967697e0a38f4971c76e025f06fef2cb2bb69a92ce5a53e5417e55ccd5deb3