[INFO] cloning repository https://github.com/neri/prefix-code [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/neri/prefix-code" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneri%2Fprefix-code", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneri%2Fprefix-code'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0269588d5629a40513ebd5f744e8a2f421ea7316 [INFO] checking neri/prefix-code 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%2Fneri%2Fprefix-code" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/neri/prefix-code [INFO] finished tweaking git repo https://github.com/neri/prefix-code [INFO] tweaked toml for git repo https://github.com/neri/prefix-code written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/neri/prefix-code 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/neri/prefix-code 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] c1312f87c7217e30c35d8c8666013d2aecb3bb11956976ab91286af6b11dec1d [INFO] running `Command { std: "docker" "start" "-a" "c1312f87c7217e30c35d8c8666013d2aecb3bb11956976ab91286af6b11dec1d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c1312f87c7217e30c35d8c8666013d2aecb3bb11956976ab91286af6b11dec1d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c1312f87c7217e30c35d8c8666013d2aecb3bb11956976ab91286af6b11dec1d", kill_on_drop: false }` [INFO] [stdout] c1312f87c7217e30c35d8c8666013d2aecb3bb11956976ab91286af6b11dec1d [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] 5fe8052cf8e65786f42e4604794632cd8a0d123a961117a7ffcb7efb78347e97 [INFO] running `Command { std: "docker" "start" "-a" "5fe8052cf8e65786f42e4604794632cd8a0d123a961117a7ffcb7efb78347e97", kill_on_drop: false }` [INFO] [stderr] Compiling bumpalo v3.17.0 [INFO] [stderr] Checking once_cell v1.21.3 [INFO] [stderr] Checking compress v0.1.0 (https://github.com/neri/compress.git?rev=fbf52c474557f641418acdf17a3234500b517de6#fbf52c47) [INFO] [stderr] Compiling syn v2.0.101 [INFO] [stderr] Compiling wasm-bindgen-backend v0.2.100 [INFO] [stderr] Compiling serde_derive v1.0.219 [INFO] [stderr] Compiling wasm-bindgen-macro-support v0.2.100 [INFO] [stderr] Compiling wasm-bindgen-macro v0.2.100 [INFO] [stderr] Checking wasm-bindgen v0.2.100 [INFO] [stderr] Checking serde v1.0.219 [INFO] [stderr] Checking serde_json v1.0.140 [INFO] [stderr] Checking libentropy v0.1.0 (/opt/rustwide/workdir/rs) [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> rs/src/lib.rs:83:25 [INFO] [stdout] | [INFO] [stdout] 83 | let zlib_meta = CanonicalPrefixCoder::encode_single_prefix_table( [INFO] [stdout] | _________________________^ [INFO] [stdout] 84 | | &prefix_table, [INFO] [stdout] 85 | | PermutationFlavor::Deflate, [INFO] [stdout] 86 | | ) [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] --> rs/src/lib.rs:134:29 [INFO] [stdout] | [INFO] [stdout] 134 | let webp_meta = CanonicalPrefixCoder::encode_single_prefix_table( [INFO] [stdout] | _____________________________^ [INFO] [stdout] 135 | | &prefix_table, [INFO] [stdout] 136 | | PermutationFlavor::WebP, [INFO] [stdout] 137 | | ) [INFO] [stdout] | |_____________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `libentropy` (lib) 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 [INFO] [stdout] --> rs/src/lib.rs:83:25 [INFO] [stdout] | [INFO] [stdout] 83 | let zlib_meta = CanonicalPrefixCoder::encode_single_prefix_table( [INFO] [stdout] | _________________________^ [INFO] [stdout] 84 | | &prefix_table, [INFO] [stdout] 85 | | PermutationFlavor::Deflate, [INFO] [stdout] 86 | | ) [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] --> rs/src/lib.rs:134:29 [INFO] [stdout] | [INFO] [stdout] 134 | let webp_meta = CanonicalPrefixCoder::encode_single_prefix_table( [INFO] [stdout] | _____________________________^ [INFO] [stdout] 135 | | &prefix_table, [INFO] [stdout] 136 | | PermutationFlavor::WebP, [INFO] [stdout] 137 | | ) [INFO] [stdout] | |_____________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `libentropy` (lib test) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "5fe8052cf8e65786f42e4604794632cd8a0d123a961117a7ffcb7efb78347e97", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5fe8052cf8e65786f42e4604794632cd8a0d123a961117a7ffcb7efb78347e97", kill_on_drop: false }` [INFO] [stdout] 5fe8052cf8e65786f42e4604794632cd8a0d123a961117a7ffcb7efb78347e97