[INFO] crate python-launcher 0.7.2 is already in cache
[INFO] testing python-launcher-0.7.2 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate python-launcher 0.7.2 into work/builds/worker-5/source
[INFO] validating manifest of crates.io crate python-launcher 0.7.2 on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "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-5/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/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" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 9266028577f64c4224f185d04faebea0b50fd0bfa4518e00a776ff1338feed7a
[INFO] running `"docker" "start" "-a" "9266028577f64c4224f185d04faebea0b50fd0bfa4518e00a776ff1338feed7a"`
[INFO] [stderr]    Compiling nix v0.13.1
[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 6.90s
[INFO] running `"docker" "inspect" "9266028577f64c4224f185d04faebea0b50fd0bfa4518e00a776ff1338feed7a"`
[INFO] running `"docker" "rm" "-f" "9266028577f64c4224f185d04faebea0b50fd0bfa4518e00a776ff1338feed7a"`
[INFO] [stdout] 9266028577f64c4224f185d04faebea0b50fd0bfa4518e00a776ff1338feed7a
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/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" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] 87e7c70da1e4407a7d1055c64a52f49ee756575d66931d94f04701dc9b0e1e7a
[INFO] running `"docker" "start" "-a" "87e7c70da1e4407a7d1055c64a52f49ee756575d66931d94f04701dc9b0e1e7a"`
[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 1.01s
[INFO] running `"docker" "inspect" "87e7c70da1e4407a7d1055c64a52f49ee756575d66931d94f04701dc9b0e1e7a"`
[INFO] running `"docker" "rm" "-f" "87e7c70da1e4407a7d1055c64a52f49ee756575d66931d94f04701dc9b0e1e7a"`
[INFO] [stdout] 87e7c70da1e4407a7d1055c64a52f49ee756575d66931d94f04701dc9b0e1e7a
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/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" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] 688f5e6be6c40374dc6e19c78848aae49c0446effff6349e61da5059c786e745
[INFO] running `"docker" "start" "-a" "688f5e6be6c40374dc6e19c78848aae49c0446effff6349e61da5059c786e745"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/python_launcher-8031e19f4350f5d2
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test tests::test_RequestedVersion_from_string ... ok
[INFO] [stdout] test tests::system_test_path_entries ... ok
[INFO] [stdout] test tests::test_action_from_args ... ok
[INFO] [stdout] test tests::test_choose_executable ... ok
[INFO] [stdout] test tests::test_find_shebang ... 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_version_matches ... ok
[INFO] [stdout] test tests::test_version_from_flag ... ok
[INFO] [stdout] test tests::test_virtual_env ... ok
[INFO] [stdout] test tests::unit_test_path_entries ... ok
[INFO] [stdout] test tests::test_split_shebang ... 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-0b2014c5b6cde5ed
[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" "688f5e6be6c40374dc6e19c78848aae49c0446effff6349e61da5059c786e745"`
[INFO] running `"docker" "rm" "-f" "688f5e6be6c40374dc6e19c78848aae49c0446effff6349e61da5059c786e745"`
[INFO] [stdout] 688f5e6be6c40374dc6e19c78848aae49c0446effff6349e61da5059c786e745