[INFO] fetching crate py2erg 0.0.82...
[INFO] checking py2erg-0.0.82 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate py2erg 0.0.82 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate py2erg 0.0.82
[INFO] finished tweaking crates.io crate py2erg 0.0.82
[INFO] tweaked toml for crates.io crate py2erg 0.0.82 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate py2erg 0.0.82 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 crates.io crate py2erg 0.0.82 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 6ec19baf72a4ddba9e91753eba3ecda231648940b216198e24d279a78ccd7fa6
[INFO] running `Command { std: "docker" "start" "-a" "6ec19baf72a4ddba9e91753eba3ecda231648940b216198e24d279a78ccd7fa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ec19baf72a4ddba9e91753eba3ecda231648940b216198e24d279a78ccd7fa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ec19baf72a4ddba9e91753eba3ecda231648940b216198e24d279a78ccd7fa6", kill_on_drop: false }`
[INFO] [stdout] 6ec19baf72a4ddba9e91753eba3ecda231648940b216198e24d279a78ccd7fa6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 6e637fc3a36c81b7707f3ef526927840fe2354a09900eed5987a477c44ed5517
[INFO] running `Command { std: "docker" "start" "-a" "6e637fc3a36c81b7707f3ef526927840fe2354a09900eed5987a477c44ed5517", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling libm v0.2.11
[INFO] [stderr]    Compiling erg_common v0.6.53-nightly.5
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]    Compiling malachite-nz v0.4.22
[INFO] [stderr]    Compiling smallvec v1.14.0
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]     Checking ahash v0.8.11
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling anyhow v1.0.96
[INFO] [stderr]    Compiling thread_local v1.1.8
[INFO] [stderr]     Checking rustpython-parser-vendored v0.4.0
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking unic-ucd-ident v0.9.0
[INFO] [stderr]     Checking unic-emoji-char v0.9.0
[INFO] [stderr]     Checking lalrpop-util v0.20.2
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]     Checking malachite-base v0.4.22
[INFO] [stderr]    Compiling erg_proc_macros v0.6.53-nightly.5
[INFO] [stderr]     Checking erg_parser v0.6.53-nightly.5
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling derive_more-impl v1.0.0
[INFO] [stderr]    Compiling is-macro v0.3.7
[INFO] [stderr]    Compiling erg_compiler v0.6.53-nightly.5
[INFO] [stderr]     Checking rustpython-parser-core v0.4.0
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling ppv-lite86 v0.2.20
[INFO] [stderr]     Checking derive_more v1.0.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling phf_generator v0.11.3
[INFO] [stderr]    Compiling phf_codegen v0.11.3
[INFO] [stderr]    Compiling unicode_names2_generator v1.3.0
[INFO] [stderr]    Compiling rustpython-parser v0.4.0
[INFO] [stderr]    Compiling unicode_names2 v1.3.0
[INFO] [stderr]     Checking malachite-q v0.4.22
[INFO] [stderr]     Checking malachite v0.4.22
[INFO] [stderr]     Checking malachite-bigint v0.2.3
[INFO] [stderr]     Checking rustpython-ast v0.4.0
[INFO] [stderr]     Checking py2erg v0.0.82 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<rustpython_ast::Expr<SourceRange>, Infallible>
[INFO] [stdout]    --> convert.rs:413:42
[INFO] [stdout]     |
[INFO] [stdout] 413 |                         .and_then(|expr| locater.fold(expr).ok())
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<ModModule<SourceRange>, Infallible>
[INFO] [stdout]    --> convert.rs:483:30
[INFO] [stdout]     |
[INFO] [stdout] 483 |         let Ok(py_program) = locator.fold(py_program);
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `py2erg` (lib test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<rustpython_ast::Expr<SourceRange>, Infallible>
[INFO] [stdout]    --> convert.rs:413:42
[INFO] [stdout]     |
[INFO] [stdout] 413 |                         .and_then(|expr| locater.fold(expr).ok())
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<ModModule<SourceRange>, Infallible>
[INFO] [stdout]    --> convert.rs:483:30
[INFO] [stdout]     |
[INFO] [stdout] 483 |         let Ok(py_program) = locator.fold(py_program);
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `py2erg` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "6e637fc3a36c81b7707f3ef526927840fe2354a09900eed5987a477c44ed5517", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e637fc3a36c81b7707f3ef526927840fe2354a09900eed5987a477c44ed5517", kill_on_drop: false }`
[INFO] [stdout] 6e637fc3a36c81b7707f3ef526927840fe2354a09900eed5987a477c44ed5517
