[INFO] fetching crate lib_sens 0.1.4...
[INFO] checking lib_sens-0.1.4 against master#5518eaa946291f00471af8b254b2a1715f234882 for pr-120393-1
[INFO] extracting crate lib_sens 0.1.4 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate lib_sens 0.1.4 on toolchain 5518eaa946291f00471af8b254b2a1715f234882
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lib_sens 0.1.4
[INFO] finished tweaking crates.io crate lib_sens 0.1.4
[INFO] tweaked toml for crates.io crate lib_sens 0.1.4 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dirs v2.0.2
[INFO] [stderr]   Downloaded libredox v0.0.1
[INFO] [stderr]   Downloaded redox_users v0.4.4
[INFO] [stderr]   Downloaded erased-serde v0.3.31
[INFO] [stderr]   Downloaded ghost v0.1.17
[INFO] [stderr]   Downloaded typetag-impl v0.1.8
[INFO] [stderr]   Downloaded ctor v0.1.26
[INFO] [stderr]   Downloaded typetag v0.1.8
[INFO] [stderr]   Downloaded inventory v0.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c24ef8c9e8151f1de410c048176c3d29abcb52f5af638acc3d5133cd99ad535c
[INFO] running `Command { std: "docker" "start" "-a" "c24ef8c9e8151f1de410c048176c3d29abcb52f5af638acc3d5133cd99ad535c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c24ef8c9e8151f1de410c048176c3d29abcb52f5af638acc3d5133cd99ad535c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c24ef8c9e8151f1de410c048176c3d29abcb52f5af638acc3d5133cd99ad535c", kill_on_drop: false }`
[INFO] [stdout] c24ef8c9e8151f1de410c048176c3d29abcb52f5af638acc3d5133cd99ad535c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8198a09363db7f931b872f6be6bb593ec18f4c6c3c56fc88179ea3e4af67468c
[INFO] running `Command { std: "docker" "start" "-a" "8198a09363db7f931b872f6be6bb593ec18f4c6c3c56fc88179ea3e4af67468c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]    Compiling serde_derive v1.0.196
[INFO] [stderr]    Compiling ghost v0.1.17
[INFO] [stderr]    Compiling ctor v0.1.26
[INFO] [stderr]    Compiling typetag-impl v0.1.8
[INFO] [stderr]     Checking inventory v0.2.3
[INFO] [stderr]     Checking erased-serde v0.3.31
[INFO] [stderr]     Checking serde_json v1.0.113
[INFO] [stderr]     Checking typetag v0.1.8
[INFO] [stderr]     Checking lib_sens v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/steam_folder.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |         &self.steam_folder_paths.remove(x);
[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] 24 |         let _ = &self.steam_folder_paths.remove(x);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/steam_folder.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |         &self.steam_folder_paths.remove(x);
[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] 24 |         let _ = &self.steam_folder_paths.remove(x);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.19s
[INFO] running `Command { std: "docker" "inspect" "8198a09363db7f931b872f6be6bb593ec18f4c6c3c56fc88179ea3e4af67468c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8198a09363db7f931b872f6be6bb593ec18f4c6c3c56fc88179ea3e4af67468c", kill_on_drop: false }`
[INFO] [stdout] 8198a09363db7f931b872f6be6bb593ec18f4c6c3c56fc88179ea3e4af67468c