[INFO] fetching crate rustpython-unparser 0.2.4... [INFO] checking rustpython-unparser-0.2.4 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate rustpython-unparser 0.2.4 into /workspace/builds/worker-4-tc2/source [INFO] started tweaking crates.io crate rustpython-unparser 0.2.4 [INFO] finished tweaking crates.io crate rustpython-unparser 0.2.4 [INFO] tweaked toml for crates.io crate rustpython-unparser 0.2.4 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate rustpython-unparser 0.2.4 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 rustpython-unparser 0.2.4 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 52c5f0bee370a978d255bfa3058a0148e81d59b0c302e2d0baa7327d980d0a3e [INFO] running `Command { std: "docker" "start" "-a" "52c5f0bee370a978d255bfa3058a0148e81d59b0c302e2d0baa7327d980d0a3e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "52c5f0bee370a978d255bfa3058a0148e81d59b0c302e2d0baa7327d980d0a3e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "52c5f0bee370a978d255bfa3058a0148e81d59b0c302e2d0baa7327d980d0a3e", kill_on_drop: false }` [INFO] [stdout] 52c5f0bee370a978d255bfa3058a0148e81d59b0c302e2d0baa7327d980d0a3e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 78b6fcef922195b6392e8db7ded37121a8973f61f143360264ac55d3a0e0bd42 [INFO] running `Command { std: "docker" "start" "-a" "78b6fcef922195b6392e8db7ded37121a8973f61f143360264ac55d3a0e0bd42", kill_on_drop: false }` [INFO] [stderr] Compiling syn v2.0.94 [INFO] [stderr] Compiling libc v0.2.169 [INFO] [stderr] Checking byteorder v1.5.0 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Checking once_cell v1.20.2 [INFO] [stderr] Compiling siphasher v0.3.11 [INFO] [stderr] Compiling libm v0.2.11 [INFO] [stderr] Checking either v1.13.0 [INFO] [stderr] Checking unic-common v0.9.0 [INFO] [stderr] Checking unic-char-range v0.9.0 [INFO] [stderr] Compiling malachite-nz v0.4.16 [INFO] [stderr] Checking ryu v1.0.18 [INFO] [stderr] Compiling ahash v0.8.11 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Checking lexical-util v0.8.5 [INFO] [stderr] Checking unic-ucd-version v0.9.0 [INFO] [stderr] Compiling crunchy v0.2.2 [INFO] [stderr] Compiling unicode-width v0.1.14 [INFO] [stderr] Compiling convert_case v0.4.0 [INFO] [stderr] Checking unic-char-property v0.9.0 [INFO] [stderr] Compiling tiny-keccak v2.0.2 [INFO] [stderr] Checking matches v0.1.10 [INFO] [stderr] Compiling anyhow v1.0.95 [INFO] [stderr] Compiling log v0.4.22 [INFO] [stderr] Checking rustpython-parser-vendored v0.4.0 [INFO] [stderr] Checking unic-ucd-category v0.9.0 [INFO] [stderr] Checking itertools v0.11.0 [INFO] [stderr] Checking hexf-parse v0.2.1 [INFO] [stderr] Compiling phf_shared v0.11.2 [INFO] [stderr] Compiling getopts v0.2.21 [INFO] [stderr] Checking unic-ucd-ident v0.9.0 [INFO] [stderr] Checking unic-emoji-char v0.9.0 [INFO] [stderr] Checking yansi v1.0.1 [INFO] [stderr] Checking lalrpop-util v0.20.2 [INFO] [stderr] Checking diff v0.1.13 [INFO] [stderr] Checking rustc-hash v1.1.0 [INFO] [stderr] Checking pretty_assertions v1.4.1 [INFO] [stderr] Checking phf v0.11.2 [INFO] [stderr] Checking getrandom v0.2.15 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking lexical-parse-integer v0.8.6 [INFO] [stderr] Checking num-integer v0.1.46 [INFO] [stderr] Checking lexical-parse-float v0.8.5 [INFO] [stderr] Compiling zerocopy-derive v0.7.35 [INFO] [stderr] Compiling is-macro v0.3.7 [INFO] [stderr] Compiling derive_more v0.99.18 [INFO] [stderr] Checking rustpython-parser-core v0.4.0 [INFO] [stderr] Checking rustpython-literal v0.4.0 [INFO] [stderr] Checking zerocopy v0.7.35 [INFO] [stderr] Compiling ppv-lite86 v0.2.20 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Checking hashbrown v0.14.5 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Checking malachite-base v0.4.16 [INFO] [stderr] Compiling phf_generator v0.11.2 [INFO] [stderr] Compiling phf_codegen v0.11.2 [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 v0.4.16 [INFO] [stderr] Checking malachite v0.4.16 [INFO] [stderr] Checking malachite-bigint v0.2.0 [INFO] [stderr] Checking rustpython-ast v0.4.0 [INFO] [stderr] Checking rustpython-unparser v0.2.4 (/opt/rustwide/workdir) [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:38:49 [INFO] [stdout] | [INFO] [stdout] 38 | ) -> Result { [INFO] [stdout] | _________________________________________________^ [INFO] [stdout] 39 | | Ok(start) [INFO] [stdout] 40 | | } [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 [INFO] [stdout] --> src/lib.rs:39:13 [INFO] [stdout] | [INFO] [stdout] 39 | Ok(start) [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:88:43 [INFO] [stdout] | [INFO] [stdout] 88 | erased_new_stmts.push(eraser.fold_stmt(stmt.to_owned()).unwrap()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/lib.rs:93:39 [INFO] [stdout] | [INFO] [stdout] 93 | erased_stmts.push(eraser.fold_stmt(stmt.to_owned()).unwrap()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rustpython-unparser` (lib test) due to 4 previous errors [INFO] running `Command { std: "docker" "inspect" "78b6fcef922195b6392e8db7ded37121a8973f61f143360264ac55d3a0e0bd42", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "78b6fcef922195b6392e8db7ded37121a8973f61f143360264ac55d3a0e0bd42", kill_on_drop: false }` [INFO] [stdout] 78b6fcef922195b6392e8db7ded37121a8973f61f143360264ac55d3a0e0bd42