[INFO] cloning repository https://github.com/Tomiyou/rustlab-python-interop
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Tomiyou/rustlab-python-interop" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTomiyou%2Frustlab-python-interop", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTomiyou%2Frustlab-python-interop'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 40f5ff35059285c7bda3f0f00be54fd83befadea
[INFO] checking Tomiyou/rustlab-python-interop against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTomiyou%2Frustlab-python-interop" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Tomiyou/rustlab-python-interop
[INFO] finished tweaking git repo https://github.com/Tomiyou/rustlab-python-interop
[INFO] tweaked toml for git repo https://github.com/Tomiyou/rustlab-python-interop written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Tomiyou/rustlab-python-interop on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Tomiyou/rustlab-python-interop already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74662346ea9f8b630d97c8a374485eee618131d8549136125650ccc44f0de5e8
[INFO] running `Command { std: "docker" "start" "-a" "74662346ea9f8b630d97c8a374485eee618131d8549136125650ccc44f0de5e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74662346ea9f8b630d97c8a374485eee618131d8549136125650ccc44f0de5e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74662346ea9f8b630d97c8a374485eee618131d8549136125650ccc44f0de5e8", kill_on_drop: false }`
[INFO] [stdout] 74662346ea9f8b630d97c8a374485eee618131d8549136125650ccc44f0de5e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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 -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea0e73b9e791d9589c32897f712ab824d8d1d1ad91824356e3d11449dba4c0ac
[INFO] running `Command { std: "docker" "start" "-a" "ea0e73b9e791d9589c32897f712ab824d8d1d1ad91824356e3d11449dba4c0ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling target-lexicon v0.13.3
[INFO] [stderr]     Checking unindent v0.2.4
[INFO] [stderr]     Checking yoke v0.8.0
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling phf_macros v0.11.3
[INFO] [stderr]     Checking parking_lot_core v0.9.11
[INFO] [stderr]    Compiling string_cache_codegen v0.5.4
[INFO] [stderr]    Compiling signal-hook v0.3.18
[INFO] [stderr]     Checking zerovec v0.11.4
[INFO] [stderr]     Checking zerotrie v0.2.2
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]    Compiling markup5ever v0.14.1
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking phf v0.11.3
[INFO] [stderr]     Checking os_pipe v1.2.2
[INFO] [stderr]     Checking string_cache v0.8.9
[INFO] [stderr]    Compiling cssparser-macros v0.6.1
[INFO] [stderr]    Compiling pyo3-build-config v0.26.0
[INFO] [stderr]     Checking percent-encoding v2.3.2
[INFO] [stderr]    Compiling rustls v0.23.32
[INFO] [stderr]     Checking form_urlencoded v1.2.2
[INFO] [stderr]     Checking sigchld v0.2.4
[INFO] [stderr]     Checking webpki-roots v1.0.2
[INFO] [stderr]    Compiling derive_more v0.99.20
[INFO] [stderr]    Compiling match_token v0.1.0
[INFO] [stderr]     Checking getopts v0.2.24
[INFO] [stderr]     Checking cssparser v0.34.0
[INFO] [stderr]     Checking webpki-roots v0.26.11
[INFO] [stderr]     Checking shared_child v1.1.1
[INFO] [stderr]     Checking flate2 v1.1.2
[INFO] [stderr]     Checking crossbeam-queue v0.3.12
[INFO] [stderr]     Checking tinystr v0.8.1
[INFO] [stderr]     Checking potential_utf v0.1.3
[INFO] [stderr]     Checking icu_collections v2.0.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.15
[INFO] [stderr]     Checking duct v0.13.7
[INFO] [stderr]     Checking icu_locale_core v2.0.0
[INFO] [stderr]     Checking primes v0.4.0
[INFO] [stderr]     Checking welcome v0.1.0 (/opt/rustwide/workdir/exercises/01_intro/00_welcome)
[INFO] [stderr]     Checking selectors v0.26.0
[INFO] [stderr]     Checking verifier v0.1.0 (/opt/rustwide/workdir/verifier)
[INFO] [stderr]     Checking crossbeam v0.8.4
[INFO] [stderr]     Checking html5ever v0.29.1
[INFO] [stderr]     Checking icu_provider v2.0.0
[INFO] [stderr]    Compiling pyo3-ffi v0.26.0
[INFO] [stderr]    Compiling pyo3-macros-backend v0.26.0
[INFO] [stderr]    Compiling pyo3 v0.26.0
[INFO] [stderr]     Checking icu_normalizer v2.0.0
[INFO] [stderr]     Checking icu_properties v2.0.1
[INFO] [stderr]     Checking scraper v0.22.0
[INFO] [stderr]     Checking idna_adapter v1.2.1
[INFO] [stderr]     Checking idna v1.1.0
[INFO] [stderr]     Checking url v2.5.7
[INFO] [stderr]     Checking rustls-webpki v0.103.6
[INFO] [stderr]    Compiling pyo3-macros v0.26.0
[INFO] [stderr]     Checking ureq v2.12.1
[INFO] [stderr]     Checking gil v0.1.0 (/opt/rustwide/workdir/exercises/01_intro/05_gil)
[INFO] [stderr]     Checking inheritance v0.1.0 (/opt/rustwide/workdir/exercises/02_classes/05_inheritance)
[INFO] [stderr]     Checking pyclass v0.1.0 (/opt/rustwide/workdir/exercises/02_classes/00_pyclass)
[INFO] [stderr]     Checking gil2 v0.1.0 (/opt/rustwide/workdir/exercises/03_concurrency/02_gil)
[INFO] [stderr]     Checking functions v0.1.0 (/opt/rustwide/workdir/exercises/01_intro/03_functions)
[INFO] [stderr]     Checking minimize v0.1.0 (/opt/rustwide/workdir/exercises/03_concurrency/04_minimize_gil_locking)
[INFO] [stderr]     Checking constructors v0.1.0 (/opt/rustwide/workdir/exercises/02_classes/01_constructors)
[INFO] [stderr]     Checking output v0.1.0 (/opt/rustwide/workdir/exercises/01_intro/06_output)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> exercises/02_classes/05_inheritance/src/lib.rs:29:28
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn full_name(&self) -> String {
[INFO] [stdout]    |                            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `inheritance` (lib test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<u32>, Infallible>
[INFO] [stdout]  --> exercises/01_intro/06_output/src/lib.rs:4:27
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn fibonacci(n: usize) -> Vec<u32> {
[INFO] [stdout]   |                           ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `output` (lib) due to 1 previous error
[INFO] [stdout] error: this type will no longer be must used: Result<ShoppingOrder, Infallible>
[INFO] [stdout]   --> exercises/02_classes/00_pyclass/src/lib.rs:21:58
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn new_order(name: String, price: u32, quantity: u32) -> ShoppingOrder {
[INFO] [stdout]    |                                                          ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pyclass` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "ea0e73b9e791d9589c32897f712ab824d8d1d1ad91824356e3d11449dba4c0ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea0e73b9e791d9589c32897f712ab824d8d1d1ad91824356e3d11449dba4c0ac", kill_on_drop: false }`
[INFO] [stdout] ea0e73b9e791d9589c32897f712ab824d8d1d1ad91824356e3d11449dba4c0ac
