[INFO] fetching crate pypackage 0.0.3...
[INFO] checking pypackage-0.0.3 against beta-2020-07-24 for pr-75494-beta
[INFO] extracting crate pypackage 0.0.3 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate pypackage 0.0.3 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-0/source/Cargo.toml
[INFO] crate crates.io crate pypackage 0.0.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e7e05f1b37a2f31994f284566ae97b580b1fae69db9d15b37a2b7a99cc6428ab
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e7e05f1b37a2f31994f284566ae97b580b1fae69db9d15b37a2b7a99cc6428ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7e05f1b37a2f31994f284566ae97b580b1fae69db9d15b37a2b7a99cc6428ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7e05f1b37a2f31994f284566ae97b580b1fae69db9d15b37a2b7a99cc6428ab", kill_on_drop: false }`
[INFO] [stdout] e7e05f1b37a2f31994f284566ae97b580b1fae69db9d15b37a2b7a99cc6428ab
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dedb645914ed934cd88551508b3afe300981d5b565a02c54451c3db0685aa471
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "dedb645914ed934cd88551508b3afe300981d5b565a02c54451c3db0685aa471", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking cfg-if v0.1.9
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[INFO] [stderr]     Checking tokio-timer v0.2.11
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[INFO] [stderr]    Compiling mime_guess v2.0.1
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling openssl v0.10.24
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
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[INFO] [stderr]     Checking crossbeam-deque v0.7.1
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[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking tokio-threadpool v0.1.15
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking publicsuffix v1.5.2
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling serde_derive v1.0.98
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling structopt-derive v0.3.1
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking hyper-tls v0.3.2
[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] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/main.rs:487:40
[INFO] [stdout]     |
[INFO] [stdout] 487 | fn read_lock(filename: &str) -> Result<(Lock), Box<dyn Error>> {
[INFO] [stdout]     |                                        ^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/main.rs:501:50
[INFO] [stdout]     |
[INFO] [stdout] 501 | fn os_from_wheel_fname(filename: &str) -> Result<(Os), dep_types::DependencyError> {
[INFO] [stdout]     |                                                  ^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/main.rs:585:25
[INFO] [stdout]     |
[INFO] [stdout] 585 | /                         (println!(
[INFO] [stdout] 586 | |                             "Unable to match python version from python_version: {}",
[INFO] [stdout] 587 | |                             &rel.python_version
[INFO] [stdout] 588 | |                         ))
[INFO] [stdout]     | |__________________________^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 585 |                         println!(
[INFO] [stdout] 586 |                             "Unable to match python version from python_version: {}",
[INFO] [stdout] 587 |                             &rel.python_version
[INFO] [stdout] 588 |                         )
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/main.rs:487:40
[INFO] [stdout]     |
[INFO] [stdout] 487 | fn read_lock(filename: &str) -> Result<(Lock), Box<dyn Error>> {
[INFO] [stdout]     |                                        ^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/main.rs:501:50
[INFO] [stdout]     |
[INFO] [stdout] 501 | fn os_from_wheel_fname(filename: &str) -> Result<(Os), dep_types::DependencyError> {
[INFO] [stdout]     |                                                  ^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/main.rs:585:25
[INFO] [stdout]     |
[INFO] [stdout] 585 | /                         (println!(
[INFO] [stdout] 586 | |                             "Unable to match python version from python_version: {}",
[INFO] [stdout] 587 | |                             &rel.python_version
[INFO] [stdout] 588 | |                         ))
[INFO] [stdout]     | |__________________________^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 585 |                         println!(
[INFO] [stdout] 586 |                             "Unable to match python version from python_version: {}",
[INFO] [stdout] 587 |                             &rel.python_version
[INFO] [stdout] 588 |                         )
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vers_cache`
[INFO] [stdout]    --> src/dep_resolution.rs:441:5
[INFO] [stdout]     |
[INFO] [stdout] 441 |     vers_cache: &HashMap<String, (String, Version, Vec<Version>)>,
[INFO] [stdout]     |     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_vers_cache`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `all_deps`
[INFO] [stdout]    --> src/dep_resolution.rs:443:5
[INFO] [stdout]     |
[INFO] [stdout] 443 |     all_deps: &[Dependency],
[INFO] [stdout]     |     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_all_deps`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `names`
[INFO] [stdout]    --> src/dep_resolution.rs:586:17
[INFO] [stdout]     |
[INFO] [stdout] 586 |             let names: Vec<String> = deps.iter().map(|d| d.version.to_string()).collect();
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_names`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vers_cache`
[INFO] [stdout]    --> src/dep_resolution.rs:441:5
[INFO] [stdout]     |
[INFO] [stdout] 441 |     vers_cache: &HashMap<String, (String, Version, Vec<Version>)>,
[INFO] [stdout]     |     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_vers_cache`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `all_deps`
[INFO] [stdout]    --> src/dep_resolution.rs:443:5
[INFO] [stdout]     |
[INFO] [stdout] 443 |     all_deps: &[Dependency],
[INFO] [stdout]     |     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_all_deps`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `names`
[INFO] [stdout]    --> src/dep_resolution.rs:586:17
[INFO] [stdout]     |
[INFO] [stdout] 586 |             let names: Vec<String> = deps.iter().map(|d| d.version.to_string()).collect();
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_names`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Ubuntu`
[INFO] [stdout]   --> src/py_versions.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 67 |     Ubuntu,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Windows`
[INFO] [stdout]   --> src/py_versions.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 68 |     Windows,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Mac`
[INFO] [stdout]   --> src/py_versions.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     Mac,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Ubuntu`
[INFO] [stdout]   --> src/py_versions.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 67 |     Ubuntu,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Windows`
[INFO] [stdout]   --> src/py_versions.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 68 |     Windows,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Mac`
[INFO] [stdout]   --> src/py_versions.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     Mac,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 18s
[INFO] running `Command { std: "docker" "inspect" "dedb645914ed934cd88551508b3afe300981d5b565a02c54451c3db0685aa471", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dedb645914ed934cd88551508b3afe300981d5b565a02c54451c3db0685aa471", kill_on_drop: false }`
[INFO] [stdout] dedb645914ed934cd88551508b3afe300981d5b565a02c54451c3db0685aa471
