[INFO] fetching crate buffett-budget 0.1.2... [INFO] checking buffett-budget-0.1.2 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1 [INFO] extracting crate buffett-budget 0.1.2 into /workspace/builds/worker-4-tc1/source [INFO] started tweaking crates.io crate buffett-budget 0.1.2 [INFO] finished tweaking crates.io crate buffett-budget 0.1.2 [INFO] tweaked toml for crates.io crate buffett-budget 0.1.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate buffett-budget 0.1.2 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 39 packages to latest compatible versions [INFO] [stderr] Adding bincode v1.3.3 (available: v2.0.1) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded buffett-interface v0.1.0 [INFO] [stderr] Downloaded bs58 v0.2.5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f2c9b52cdc0475e0bc5c8fc4e4a0f20462779f2dfc341e2c53c4b0ad6dbe4163 [INFO] running `Command { std: "docker" "start" "-a" "f2c9b52cdc0475e0bc5c8fc4e4a0f20462779f2dfc341e2c53c4b0ad6dbe4163", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f2c9b52cdc0475e0bc5c8fc4e4a0f20462779f2dfc341e2c53c4b0ad6dbe4163", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f2c9b52cdc0475e0bc5c8fc4e4a0f20462779f2dfc341e2c53c4b0ad6dbe4163", kill_on_drop: false }` [INFO] [stdout] f2c9b52cdc0475e0bc5c8fc4e4a0f20462779f2dfc341e2c53c4b0ad6dbe4163 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9c90c5506f7a153f9fc4c422fcc299896aa23992827f9fecc9cbfbd137de5142 [INFO] running `Command { std: "docker" "start" "-a" "9c90c5506f7a153f9fc4c422fcc299896aa23992827f9fecc9cbfbd137de5142", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.101 [INFO] [stderr] Compiling serde v1.0.219 [INFO] [stderr] Compiling unicode-ident v1.0.18 [INFO] [stderr] Compiling autocfg v1.5.0 [INFO] [stderr] Compiling typenum v1.18.0 [INFO] [stderr] Checking bs58 v0.2.5 [INFO] [stderr] Checking iana-time-zone v0.1.63 [INFO] [stderr] Checking log v0.4.27 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling quote v1.0.40 [INFO] [stderr] Compiling syn v2.0.106 [INFO] [stderr] Checking bincode v1.3.3 [INFO] [stderr] Checking generic-array v0.12.4 [INFO] [stderr] Checking chrono v0.4.41 [INFO] [stderr] Compiling serde_derive v1.0.219 [INFO] [stderr] Checking buffett-interface v0.1.0 [INFO] [stderr] Checking buffett-budget v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/budget.rs:107:13 [INFO] [stdout] | [INFO] [stdout] 107 | mem::replace(self, budget); [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)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 107 | let _ = mem::replace(self, budget); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/budget.rs:107:13 [INFO] [stdout] | [INFO] [stdout] 107 | mem::replace(self, budget); [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)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 107 | let _ = mem::replace(self, budget); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.63s [INFO] running `Command { std: "docker" "inspect" "9c90c5506f7a153f9fc4c422fcc299896aa23992827f9fecc9cbfbd137de5142", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9c90c5506f7a153f9fc4c422fcc299896aa23992827f9fecc9cbfbd137de5142", kill_on_drop: false }` [INFO] [stdout] 9c90c5506f7a153f9fc4c422fcc299896aa23992827f9fecc9cbfbd137de5142