[INFO] fetching crate structbuf 0.3.4...
[INFO] checking structbuf-0.3.4 against try#0edd13c68435d50367c79cef43ac2768d2ec4f3d for pr-129422
[INFO] extracting crate structbuf 0.3.4 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate structbuf 0.3.4 on toolchain 0edd13c68435d50367c79cef43ac2768d2ec4f3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0edd13c68435d50367c79cef43ac2768d2ec4f3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate structbuf 0.3.4
[INFO] finished tweaking crates.io crate structbuf 0.3.4
[INFO] tweaked toml for crates.io crate structbuf 0.3.4 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0edd13c68435d50367c79cef43ac2768d2ec4f3d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 2 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0edd13c68435d50367c79cef43ac2768d2ec4f3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+0edd13c68435d50367c79cef43ac2768d2ec4f3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d1ea2fc45d6bcbee146cdfc9807fcee16854d597a4e922e95c0c4e2f2b0733d6
[INFO] running `Command { std: "docker" "start" "-a" "d1ea2fc45d6bcbee146cdfc9807fcee16854d597a4e922e95c0c4e2f2b0733d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1ea2fc45d6bcbee146cdfc9807fcee16854d597a4e922e95c0c4e2f2b0733d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1ea2fc45d6bcbee146cdfc9807fcee16854d597a4e922e95c0c4e2f2b0733d6", kill_on_drop: false }`
[INFO] [stdout] d1ea2fc45d6bcbee146cdfc9807fcee16854d597a4e922e95c0c4e2f2b0733d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+0edd13c68435d50367c79cef43ac2768d2ec4f3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8afa9906ff37bc4d39d90568abcaa52b17ce5bed72ad2a22a52ad18d2e1bb9d7
[INFO] running `Command { std: "docker" "start" "-a" "8afa9906ff37bc4d39d90568abcaa52b17ce5bed72ad2a22a52ad18d2e1bb9d7", kill_on_drop: false }`
[INFO] [stderr]     Checking structbuf v0.3.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]    --> src/lib.rs:780:53
[INFO] [stdout]     |
[INFO] [stdout] 780 |         if let Some(rem) = self.0.len().checked_sub(mem::size_of::<T>()) {
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:43:9
[INFO] [stdout]     |
[INFO] [stdout] 43  | #![warn(unused_qualifications)]
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 780 -         if let Some(rem) = self.0.len().checked_sub(mem::size_of::<T>()) {
[INFO] [stdout] 780 +         if let Some(rem) = self.0.len().checked_sub(size_of::<T>()) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]    --> src/lib.rs:780:53
[INFO] [stdout]     |
[INFO] [stdout] 780 |         if let Some(rem) = self.0.len().checked_sub(mem::size_of::<T>()) {
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:43:9
[INFO] [stdout]     |
[INFO] [stdout] 43  | #![warn(unused_qualifications)]
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 780 -         if let Some(rem) = self.0.len().checked_sub(mem::size_of::<T>()) {
[INFO] [stdout] 780 +         if let Some(rem) = self.0.len().checked_sub(size_of::<T>()) {
[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` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "8afa9906ff37bc4d39d90568abcaa52b17ce5bed72ad2a22a52ad18d2e1bb9d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8afa9906ff37bc4d39d90568abcaa52b17ce5bed72ad2a22a52ad18d2e1bb9d7", kill_on_drop: false }`
[INFO] [stdout] 8afa9906ff37bc4d39d90568abcaa52b17ce5bed72ad2a22a52ad18d2e1bb9d7