[INFO] fetching crate vec1 1.6.0...
[INFO] checking vec1-1.6.0 against master#f5f33ec0e0455eefa72fc5567eb1280a4d5ee206 for pr-83312
[INFO] extracting crate vec1 1.6.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate vec1 1.6.0 on toolchain f5f33ec0e0455eefa72fc5567eb1280a4d5ee206
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate vec1 1.6.0
[INFO] finished tweaking crates.io crate vec1 1.6.0
[INFO] tweaked toml for crates.io crate vec1 1.6.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 346ede2b86e2d83c8bac741f69c537a808db81cbce26fe6bebe5163b78d81dd8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "346ede2b86e2d83c8bac741f69c537a808db81cbce26fe6bebe5163b78d81dd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "346ede2b86e2d83c8bac741f69c537a808db81cbce26fe6bebe5163b78d81dd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "346ede2b86e2d83c8bac741f69c537a808db81cbce26fe6bebe5163b78d81dd8", kill_on_drop: false }`
[INFO] [stdout] 346ede2b86e2d83c8bac741f69c537a808db81cbce26fe6bebe5163b78d81dd8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4295aeb3475ed7561d5daa37dc55e31c456be0bd8d128ae57aa630c5bc4f92b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c4295aeb3475ed7561d5daa37dc55e31c456be0bd8d128ae57aa630c5bc4f92b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking vec1 v1.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]     --> src/lib.rs:1138:46
[INFO] [stdout]      |
[INFO] [stdout] 1138 |             fn chk<E, T: BorrowMut<[E]>>() {};
[INFO] [stdout]      |                                              ^ help: remove this semicolon
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]     --> src/lib.rs:1144:46
[INFO] [stdout]      |
[INFO] [stdout] 1144 |             fn chk<E, T: BorrowMut<[E]>>() {};
[INFO] [stdout]      |                                              ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]     --> src/lib.rs:1150:42
[INFO] [stdout]      |
[INFO] [stdout] 1150 |             fn chk<E, T: AsMut<[E]>>() {};
[INFO] [stdout]      |                                          ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]     --> src/lib.rs:1156:42
[INFO] [stdout]      |
[INFO] [stdout] 1156 |             fn chk<E, T: AsRef<[E]>>() {};
[INFO] [stdout]      |                                          ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]     --> src/lib.rs:1161:46
[INFO] [stdout]      |
[INFO] [stdout] 1161 |             fn chk<E, T: AsMut<Vec1<E>>>() {};
[INFO] [stdout]      |                                              ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]     --> src/lib.rs:1167:46
[INFO] [stdout]      |
[INFO] [stdout] 1167 |             fn chk<E, T: AsRef<Vec1<E>>>() {};
[INFO] [stdout]      |                                              ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]     --> src/lib.rs:1173:45
[INFO] [stdout]      |
[INFO] [stdout] 1173 |             fn chk<E, T: AsRef<Vec<E>>>() {};
[INFO] [stdout]      |                                             ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.75s
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c4295aeb3475ed7561d5daa37dc55e31c456be0bd8d128ae57aa630c5bc4f92b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4295aeb3475ed7561d5daa37dc55e31c456be0bd8d128ae57aa630c5bc4f92b", kill_on_drop: false }`
[INFO] [stdout] c4295aeb3475ed7561d5daa37dc55e31c456be0bd8d128ae57aa630c5bc4f92b