[INFO] crate python-launcher 0.7.2 is already in cache
[INFO] testing python-launcher-0.7.2 against 1.38.0 for beta-1.39-1
[INFO] extracting crate python-launcher 0.7.2 into work/builds/worker-7/source
[INFO] validating manifest of crates.io crate python-launcher 0.7.2 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate python-launcher 0.7.2
[INFO] finished tweaking crates.io crate python-launcher 0.7.2
[INFO] tweaked toml for crates.io crate python-launcher 0.7.2 written to work/builds/worker-7/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/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=warn" "-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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 5dcf366b51e885bbd121c54d20c58be35a31fb0616fdb0ff9bd8ef65ad2fcb7b
[INFO] running `"docker" "start" "-a" "5dcf366b51e885bbd121c54d20c58be35a31fb0616fdb0ff9bd8ef65ad2fcb7b"`
[INFO] [stderr]    Compiling python-launcher v0.7.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:44:9
[INFO] [stderr]    |
[INFO] [stderr] 44 |     let mut chosen_path: Option<path::PathBuf>;
[INFO] [stderr]    |         ----^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.66s
[INFO] running `"docker" "inspect" "5dcf366b51e885bbd121c54d20c58be35a31fb0616fdb0ff9bd8ef65ad2fcb7b"`
[INFO] running `"docker" "rm" "-f" "5dcf366b51e885bbd121c54d20c58be35a31fb0616fdb0ff9bd8ef65ad2fcb7b"`
[INFO] [stdout] 5dcf366b51e885bbd121c54d20c58be35a31fb0616fdb0ff9bd8ef65ad2fcb7b
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/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=warn" "-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" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] a8e2bea2a91c5dfcc6c668beaae9a08ba472c7908341a7cd33296545569df4dc
[INFO] running `"docker" "start" "-a" "a8e2bea2a91c5dfcc6c668beaae9a08ba472c7908341a7cd33296545569df4dc"`
[INFO] [stderr]    Compiling python-launcher v0.7.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:44:9
[INFO] [stderr]    |
[INFO] [stderr] 44 |     let mut chosen_path: Option<path::PathBuf>;
[INFO] [stderr]    |         ----^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `"docker" "inspect" "a8e2bea2a91c5dfcc6c668beaae9a08ba472c7908341a7cd33296545569df4dc"`
[INFO] running `"docker" "rm" "-f" "a8e2bea2a91c5dfcc6c668beaae9a08ba472c7908341a7cd33296545569df4dc"`
[INFO] [stdout] a8e2bea2a91c5dfcc6c668beaae9a08ba472c7908341a7cd33296545569df4dc
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/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=warn" "-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" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 21034b8ae57b298a263a321e1587d2eb920190612b1b53cf4cf457e46f38c0a3
[INFO] running `"docker" "start" "-a" "21034b8ae57b298a263a321e1587d2eb920190612b1b53cf4cf457e46f38c0a3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/python_launcher-72871b403e907b38
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test tests::system_test_path_entries ... ok
[INFO] [stdout] test tests::test_RequestedVersion_from_string ... ok
[INFO] [stdout] test tests::test_action_from_args ... ok
[INFO] [stdout] test tests::test_choose_executable ... ok
[INFO] [stdout] test tests::test_filter_python_executables ... ok
[INFO] [stdout] test tests::test_requested_version_env_var ... ok
[INFO] [stdout] test tests::test_split_shebang ... ok
[INFO] [stdout] test tests::test_find_shebang ... ok
[INFO] [stdout] test tests::test_version_from_flag ... ok
[INFO] [stdout] test tests::test_version_matches ... ok
[INFO] [stdout] test tests::test_virtual_env ... ok
[INFO] [stdout] test tests::unit_test_path_entries ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/py-0453d63b03094b5d
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests python-launcher
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - action_from_args (line 148) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "21034b8ae57b298a263a321e1587d2eb920190612b1b53cf4cf457e46f38c0a3"`
[INFO] running `"docker" "rm" "-f" "21034b8ae57b298a263a321e1587d2eb920190612b1b53cf4cf457e46f38c0a3"`
[INFO] [stdout] 21034b8ae57b298a263a321e1587d2eb920190612b1b53cf4cf457e46f38c0a3