[INFO] fetching crate form_urlencoded 1.2.1...
[INFO] checking form_urlencoded-1.2.1 against master#38352b01ae4af9300be03b805d6db68c45e51068 for pr-129864
[INFO] extracting crate form_urlencoded 1.2.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate form_urlencoded 1.2.1 on toolchain 38352b01ae4af9300be03b805d6db68c45e51068
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate form_urlencoded 1.2.1
[INFO] finished tweaking crates.io crate form_urlencoded 1.2.1
[INFO] tweaked toml for crates.io crate form_urlencoded 1.2.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a87b3c0d49e8d031fbe397a3bd21960e4fa7d3d57a3e03e038dcc0f56ce0787b
[INFO] running `Command { std: "docker" "start" "-a" "a87b3c0d49e8d031fbe397a3bd21960e4fa7d3d57a3e03e038dcc0f56ce0787b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a87b3c0d49e8d031fbe397a3bd21960e4fa7d3d57a3e03e038dcc0f56ce0787b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a87b3c0d49e8d031fbe397a3bd21960e4fa7d3d57a3e03e038dcc0f56ce0787b", kill_on_drop: false }`
[INFO] [stdout] a87b3c0d49e8d031fbe397a3bd21960e4fa7d3d57a3e03e038dcc0f56ce0787b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92f4d84c74a1915eb3400aa064498bd5341d466cae63ee021cfbd11236efdab4
[INFO] running `Command { std: "docker" "start" "-a" "92f4d84c74a1915eb3400aa064498bd5341d466cae63ee021cfbd11236efdab4", kill_on_drop: false }`
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]     Checking form_urlencoded v1.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: ambiguous wide pointer comparison, the comparison includes metadata which may not be expected
[INFO] [stdout]    --> src/lib.rs:414:35
[INFO] [stdout]     |
[INFO] [stdout] 414 |                     debug_assert!(raw_utf8 == &*bytes as *const [u8]);
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ambiguous_wide_pointer_comparisons)]` on by default
[INFO] [stdout] help: use `std::ptr::addr_eq` or untyped pointers to only compare their addresses
[INFO] [stdout]     |
[INFO] [stdout] 414 |                     debug_assert!(std::ptr::addr_eq(raw_utf8, &*bytes as *const [u8]));
[INFO] [stdout]     |                                   ++++++++++++++++++        ~                       +
[INFO] [stdout] help: use explicit `std::ptr::eq` method to compare metadata and addresses
[INFO] [stdout]     |
[INFO] [stdout] 414 |                     debug_assert!(std::ptr::eq(raw_utf8, &*bytes as *const [u8]));
[INFO] [stdout]     |                                   +++++++++++++        ~                       +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: ambiguous wide pointer comparison, the comparison includes metadata which may not be expected
[INFO] [stdout]    --> src/lib.rs:414:35
[INFO] [stdout]     |
[INFO] [stdout] 414 |                     debug_assert!(raw_utf8 == &*bytes as *const [u8]);
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ambiguous_wide_pointer_comparisons)]` on by default
[INFO] [stdout] help: use `std::ptr::addr_eq` or untyped pointers to only compare their addresses
[INFO] [stdout]     |
[INFO] [stdout] 414 |                     debug_assert!(std::ptr::addr_eq(raw_utf8, &*bytes as *const [u8]));
[INFO] [stdout]     |                                   ++++++++++++++++++        ~                       +
[INFO] [stdout] help: use explicit `std::ptr::eq` method to compare metadata and addresses
[INFO] [stdout]     |
[INFO] [stdout] 414 |                     debug_assert!(std::ptr::eq(raw_utf8, &*bytes as *const [u8]));
[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 0.33s
[INFO] running `Command { std: "docker" "inspect" "92f4d84c74a1915eb3400aa064498bd5341d466cae63ee021cfbd11236efdab4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92f4d84c74a1915eb3400aa064498bd5341d466cae63ee021cfbd11236efdab4", kill_on_drop: false }`
[INFO] [stdout] 92f4d84c74a1915eb3400aa064498bd5341d466cae63ee021cfbd11236efdab4