[INFO] updating cached repository https://github.com/David-OConnor/pypackages
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/David-OConnor/pypackages
[INFO] [stderr]    ff9197b..e60fcc5  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e60fcc5dca9e6464f47758545638755ae05e6715
[INFO] checking David-OConnor/pypackages against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FDavid-OConnor%2Fpypackages" "work/builds/worker-4/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/David-OConnor/pypackages on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/David-OConnor/pypackages
[INFO] finished tweaking git repo https://github.com/David-OConnor/pypackages
[INFO] tweaked toml for git repo https://github.com/David-OConnor/pypackages written to work/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/David-OConnor/pypackages already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a7235b876dee245f6c124cfc8606bdd69701d7ab3bb475db8ef832adceafdf1f
[INFO] running `"docker" "start" "-a" "a7235b876dee245f6c124cfc8606bdd69701d7ab3bb475db8ef832adceafdf1f"`
[INFO] [stderr]    Compiling proc-macro2 v1.0.0
[INFO] [stderr]    Compiling serde v1.0.98
[INFO] [stderr]    Compiling syn v1.0.1
[INFO] [stderr]     Checking untrusted v0.7.0
[INFO] [stderr]     Checking spin v0.5.1
[INFO] [stderr]     Checking data-encoding v2.1.2
[INFO] [stderr]    Compiling bzip2-sys v0.1.7
[INFO] [stderr]    Compiling ring v0.16.7
[INFO] [stderr]    Compiling openssl-sys v0.9.49
[INFO] [stderr]    Compiling lzma-sys v0.1.15
[INFO] [stderr]     Checking crossterm_utils v0.2.4
[INFO] [stderr]     Checking xattr v0.2.2
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking backtrace v0.3.34
[INFO] [stderr]     Checking flate2 v1.0.11
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking tar v0.4.26
[INFO] [stderr]    Compiling serde_derive v1.0.98
[INFO] [stderr]     Checking crossterm_cursor v0.2.6
[INFO] [stderr]     Checking crossterm_screen v0.2.5
[INFO] [stderr]     Checking crossterm_style v0.4.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking error-chain v0.12.1
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]     Checking crossterm_input v0.3.9
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking crossterm_terminal v0.2.6
[INFO] [stderr]    Compiling quote v1.0.0
[INFO] [stderr]     Checking xz2 v0.1.6
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]    Compiling openssl v0.10.24
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking publicsuffix v1.5.2
[INFO] [stderr]     Checking tokio-threadpool v0.1.15
[INFO] [stderr]     Checking crossterm v0.10.2
[INFO] [stderr]     Checking zip v0.5.3
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking hyper v0.12.33
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling structopt-derive v0.3.1
[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 pyflow v0.0.5 (/opt/rustwide/workdir)
[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: consider prefixing with an underscore: `_vers_cache`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[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: consider prefixing 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: consider prefixing with an underscore: `_vers_cache`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[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: consider prefixing 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: 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]     Finished dev [unoptimized + debuginfo] target(s) in 2m 03s
[INFO] running `"docker" "inspect" "a7235b876dee245f6c124cfc8606bdd69701d7ab3bb475db8ef832adceafdf1f"`
[INFO] running `"docker" "rm" "-f" "a7235b876dee245f6c124cfc8606bdd69701d7ab3bb475db8ef832adceafdf1f"`
[INFO] [stdout] a7235b876dee245f6c124cfc8606bdd69701d7ab3bb475db8ef832adceafdf1f