[INFO] cloning repository https://github.com/ericbck/category_lists [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ericbck/category_lists" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fericbck%2Fcategory_lists", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fericbck%2Fcategory_lists'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 02852cfef160180c2eaed15278bc0b32931111b8 [INFO] checking ericbck/category_lists against try#4907eac94165faff6c5e5e015670b1c584275f7b for pr-154149 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fericbck%2Fcategory_lists" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/ericbck/category_lists [INFO] finished tweaking git repo https://github.com/ericbck/category_lists [INFO] tweaked toml for git repo https://github.com/ericbck/category_lists written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/ericbck/category_lists on toolchain 4907eac94165faff6c5e5e015670b1c584275f7b [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4907eac94165faff6c5e5e015670b1c584275f7b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/ericbck/category_lists 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" "+4907eac94165faff6c5e5e015670b1c584275f7b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+4907eac94165faff6c5e5e015670b1c584275f7b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d1ff92f0d94069047b170b3a4f51506e75c79d126f621ea912f588e10193e09a [INFO] running `Command { std: "docker" "start" "-a" "d1ff92f0d94069047b170b3a4f51506e75c79d126f621ea912f588e10193e09a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d1ff92f0d94069047b170b3a4f51506e75c79d126f621ea912f588e10193e09a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d1ff92f0d94069047b170b3a4f51506e75c79d126f621ea912f588e10193e09a", kill_on_drop: false }` [INFO] [stdout] d1ff92f0d94069047b170b3a4f51506e75c79d126f621ea912f588e10193e09a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+4907eac94165faff6c5e5e015670b1c584275f7b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f07f2fb2d776dbb250a00d491c25672b5184f49ebef7a6d293ae9938ef11464c [INFO] running `Command { std: "docker" "start" "-a" "f07f2fb2d776dbb250a00d491c25672b5184f49ebef7a6d293ae9938ef11464c", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.103 [INFO] [stderr] Compiling quote v1.0.42 [INFO] [stderr] Checking memchr v2.7.6 [INFO] [stderr] Compiling serde_core v1.0.228 [INFO] [stderr] Checking encoding_rs_io v0.1.7 [INFO] [stderr] Checking csv-core v0.1.13 [INFO] [stderr] Compiling syn v2.0.111 [INFO] [stderr] Checking csv v1.4.0 [INFO] [stderr] Compiling serde_derive v1.0.228 [INFO] [stderr] Checking serde v1.0.228 [INFO] [stderr] Checking csv_combinations v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `csv::Writer` [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use csv::Writer; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `csv::Writer` [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use csv::Writer; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0716]: temporary value dropped while borrowed [INFO] [stdout] --> src/main.rs:62:48 [INFO] [stdout] | [INFO] [stdout] 62 | let (encoded, _, _) = WINDOWS_1252.encode(&String::from_utf8(buffer)?); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ - temporary value is freed at the end of this statement [INFO] [stdout] | | [INFO] [stdout] | creates a temporary value which is freed while still in use [INFO] [stdout] 63 | let mut output = File::create(output_file)?; [INFO] [stdout] 64 | output.write_all(&encoded)?; [INFO] [stdout] | -------- borrow later used here [INFO] [stdout] | [INFO] [stdout] help: consider using a `let` binding to create a longer lived value [INFO] [stdout] | [INFO] [stdout] 62 ~ let binding = String::from_utf8(buffer)?; [INFO] [stdout] 63 ~ let (encoded, _, _) = WINDOWS_1252.encode(&binding); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0716]: temporary value dropped while borrowed [INFO] [stdout] --> src/main.rs:62:48 [INFO] [stdout] | [INFO] [stdout] 62 | let (encoded, _, _) = WINDOWS_1252.encode(&String::from_utf8(buffer)?); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ - temporary value is freed at the end of this statement [INFO] [stdout] | | [INFO] [stdout] | creates a temporary value which is freed while still in use [INFO] [stdout] 63 | let mut output = File::create(output_file)?; [INFO] [stdout] 64 | output.write_all(&encoded)?; [INFO] [stdout] | -------- borrow later used here [INFO] [stdout] | [INFO] [stdout] help: consider using a `let` binding to create a longer lived value [INFO] [stdout] | [INFO] [stdout] 62 ~ let binding = String::from_utf8(buffer)?; [INFO] [stdout] 63 ~ let (encoded, _, _) = WINDOWS_1252.encode(&binding); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0716`. [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0716`. [INFO] [stdout] [INFO] [stderr] error: could not compile `csv_combinations` (bin "csv_combinations" test) due to 1 previous error; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `csv_combinations` (bin "csv_combinations") due to 1 previous error; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "f07f2fb2d776dbb250a00d491c25672b5184f49ebef7a6d293ae9938ef11464c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f07f2fb2d776dbb250a00d491c25672b5184f49ebef7a6d293ae9938ef11464c", kill_on_drop: false }` [INFO] [stdout] f07f2fb2d776dbb250a00d491c25672b5184f49ebef7a6d293ae9938ef11464c