[INFO] fetching crate internship 0.6.0... [INFO] checking internship-0.6.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate internship 0.6.0 into /workspace/builds/worker-3-tc2/source [INFO] started tweaking crates.io crate internship 0.6.0 [INFO] finished tweaking crates.io crate internship 0.6.0 [INFO] tweaked toml for crates.io crate internship 0.6.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate internship 0.6.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 7 packages to latest compatible versions [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] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [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] b40d85f9328fb9cd153542cddaaf0ddba4f0d1553ee3a3182e3f3dedcc50091d [INFO] running `Command { std: "docker" "start" "-a" "b40d85f9328fb9cd153542cddaaf0ddba4f0d1553ee3a3182e3f3dedcc50091d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b40d85f9328fb9cd153542cddaaf0ddba4f0d1553ee3a3182e3f3dedcc50091d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b40d85f9328fb9cd153542cddaaf0ddba4f0d1553ee3a3182e3f3dedcc50091d", kill_on_drop: false }` [INFO] [stdout] b40d85f9328fb9cd153542cddaaf0ddba4f0d1553ee3a3182e3f3dedcc50091d [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] a9a42d43b0bf078570e0f2cb3a0b232443a56bd09cbd593fa8bbf17cb25c0694 [INFO] running `Command { std: "docker" "start" "-a" "a9a42d43b0bf078570e0f2cb3a0b232443a56bd09cbd593fa8bbf17cb25c0694", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] Checking internship v0.6.0 (/opt/rustwide/workdir) [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/istr.rs:165:56 [INFO] [stdout] | [INFO] [stdout] 165 | fn from_str(src: &str) -> Result { [INFO] [stdout] | ________________________________________________________^ [INFO] [stdout] 166 | | Ok(IStr::new(src)) [INFO] [stdout] 167 | | } [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/istr.rs:166:9 [INFO] [stdout] | [INFO] [stdout] 166 | Ok(IStr::new(src)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/handle.rs:267:13 [INFO] [stdout] | [INFO] [stdout] 267 | replace(&mut *pool.borrow_mut(), prev_pool); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 267 | let _ = replace(&mut *pool.borrow_mut(), prev_pool); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `internship` (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] --> src/istr.rs:165:56 [INFO] [stdout] | [INFO] [stdout] 165 | fn from_str(src: &str) -> Result { [INFO] [stdout] | ________________________________________________________^ [INFO] [stdout] 166 | | Ok(IStr::new(src)) [INFO] [stdout] 167 | | } [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/istr.rs:166:9 [INFO] [stdout] | [INFO] [stdout] 166 | Ok(IStr::new(src)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `internship` (lib test) due to 2 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "a9a42d43b0bf078570e0f2cb3a0b232443a56bd09cbd593fa8bbf17cb25c0694", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a9a42d43b0bf078570e0f2cb3a0b232443a56bd09cbd593fa8bbf17cb25c0694", kill_on_drop: false }` [INFO] [stdout] a9a42d43b0bf078570e0f2cb3a0b232443a56bd09cbd593fa8bbf17cb25c0694