[INFO] fetching crate data_structures_SD 0.1.1...
[INFO] checking data_structures_SD-0.1.1 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate data_structures_SD 0.1.1 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate data_structures_SD 0.1.1
[INFO] finished tweaking crates.io crate data_structures_SD 0.1.1
[INFO] tweaked toml for crates.io crate data_structures_SD 0.1.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate data_structures_SD 0.1.1 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ea73cbcbc5a2d982c74019d9925cac3bc44f231c9fcd786206108bfc6845ccab
[INFO] running `Command { std: "docker" "start" "-a" "ea73cbcbc5a2d982c74019d9925cac3bc44f231c9fcd786206108bfc6845ccab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea73cbcbc5a2d982c74019d9925cac3bc44f231c9fcd786206108bfc6845ccab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea73cbcbc5a2d982c74019d9925cac3bc44f231c9fcd786206108bfc6845ccab", kill_on_drop: false }`
[INFO] [stdout] ea73cbcbc5a2d982c74019d9925cac3bc44f231c9fcd786206108bfc6845ccab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ec9be4be67847cefc4d231a4c6f2a4e85e10c00c1820eb493bd63eb7eaf20be
[INFO] running `Command { std: "docker" "start" "-a" "1ec9be4be67847cefc4d231a4c6f2a4e85e10c00c1820eb493bd63eb7eaf20be", kill_on_drop: false }`
[INFO] [stderr]     Checking data_structures_SD v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: crate `data_structures_SD` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `data_structures_sd`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/lists.rs:94:21
[INFO] [stdout]    |
[INFO] [stdout] 94 |                     &self.pairs[i].set_data(d);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 94 |                     let _ = &self.pairs[i].set_data(d);
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lists.rs:117:21
[INFO] [stdout]     |
[INFO] [stdout] 117 |                     &self.pairs[i].set_key(nk);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 117 |                     let _ = &self.pairs[i].set_key(nk);
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/lists.rs:94:21
[INFO] [stdout]    |
[INFO] [stdout] 94 |                     &self.pairs[i].set_data(d);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 94 |                     let _ = &self.pairs[i].set_data(d);
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lists.rs:117:21
[INFO] [stdout]     |
[INFO] [stdout] 117 |                     &self.pairs[i].set_key(nk);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 117 |                     let _ = &self.pairs[i].set_key(nk);
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "1ec9be4be67847cefc4d231a4c6f2a4e85e10c00c1820eb493bd63eb7eaf20be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ec9be4be67847cefc4d231a4c6f2a4e85e10c00c1820eb493bd63eb7eaf20be", kill_on_drop: false }`
[INFO] [stdout] 1ec9be4be67847cefc4d231a4c6f2a4e85e10c00c1820eb493bd63eb7eaf20be