[INFO] fetching crate structbuf 0.3.4...
[INFO] checking structbuf-0.3.4 against master#f167efad2f51088d86180ee89177b3d7c9e7c2f5 for pr-129543
[INFO] extracting crate structbuf 0.3.4 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate structbuf 0.3.4 on toolchain f167efad2f51088d86180ee89177b3d7c9e7c2f5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "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-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eee80e8238a45041f058732d7c7edc9d1b218d0903bd00d3588412e26ec9a5b3
[INFO] running `Command { std: "docker" "start" "-a" "eee80e8238a45041f058732d7c7edc9d1b218d0903bd00d3588412e26ec9a5b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eee80e8238a45041f058732d7c7edc9d1b218d0903bd00d3588412e26ec9a5b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eee80e8238a45041f058732d7c7edc9d1b218d0903bd00d3588412e26ec9a5b3", kill_on_drop: false }`
[INFO] [stdout] eee80e8238a45041f058732d7c7edc9d1b218d0903bd00d3588412e26ec9a5b3
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a8eda1e2d6855452fe17fcb4c0bdbeac14f5011ad24b15ae1c8620816d48897f
[INFO] running `Command { std: "docker" "start" "-a" "a8eda1e2d6855452fe17fcb4c0bdbeac14f5011ad24b15ae1c8620816d48897f", kill_on_drop: false }`
[INFO] [stderr]     Checking smallvec v1.13.2
[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 0.25s
[INFO] running `Command { std: "docker" "inspect" "a8eda1e2d6855452fe17fcb4c0bdbeac14f5011ad24b15ae1c8620816d48897f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8eda1e2d6855452fe17fcb4c0bdbeac14f5011ad24b15ae1c8620816d48897f", kill_on_drop: false }`
[INFO] [stdout] a8eda1e2d6855452fe17fcb4c0bdbeac14f5011ad24b15ae1c8620816d48897f