[INFO] fetching crate is-same 0.2.1...
[INFO] checking is-same-0.2.1 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate is-same 0.2.1 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate is-same 0.2.1
[INFO] finished tweaking crates.io crate is-same 0.2.1
[INFO] tweaked toml for crates.io crate is-same 0.2.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate is-same 0.2.1 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 046faa5362902bc771e3729054217d0dd427ee65f24bc4e38cbc16e813022e0b
[INFO] running `Command { std: "docker" "start" "-a" "046faa5362902bc771e3729054217d0dd427ee65f24bc4e38cbc16e813022e0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "046faa5362902bc771e3729054217d0dd427ee65f24bc4e38cbc16e813022e0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "046faa5362902bc771e3729054217d0dd427ee65f24bc4e38cbc16e813022e0b", kill_on_drop: false }`
[INFO] [stdout] 046faa5362902bc771e3729054217d0dd427ee65f24bc4e38cbc16e813022e0b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 883d78fa290dd7a1bf8912c7083bedafbab13b94154223a37bb8337777d6749e
[INFO] running `Command { std: "docker" "start" "-a" "883d78fa290dd7a1bf8912c7083bedafbab13b94154223a37bb8337777d6749e", kill_on_drop: false }`
[INFO] [stderr]     Checking is-same v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: ambiguous wide pointer comparison, the comparison includes metadata which may not be expected
[INFO] [stdout]    --> src/lib.rs:190:12
[INFO] [stdout]     |
[INFO] [stdout] 190 |         if (*self as *const T) == (*other as *const T) {
[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] 190 -         if (*self as *const T) == (*other as *const T) {
[INFO] [stdout] 190 +         if std::ptr::addr_eq((*self as *const T), (*other as *const T)) {
[INFO] [stdout]     |
[INFO] [stdout] help: use explicit `std::ptr::eq` method to compare metadata and addresses
[INFO] [stdout]     |
[INFO] [stdout] 190 -         if (*self as *const T) == (*other as *const T) {
[INFO] [stdout] 190 +         if std::ptr::eq((*self as *const T), (*other as *const T)) {
[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:190:12
[INFO] [stdout]     |
[INFO] [stdout] 190 |         if (*self as *const T) == (*other as *const T) {
[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] 190 -         if (*self as *const T) == (*other as *const T) {
[INFO] [stdout] 190 +         if std::ptr::addr_eq((*self as *const T), (*other as *const T)) {
[INFO] [stdout]     |
[INFO] [stdout] help: use explicit `std::ptr::eq` method to compare metadata and addresses
[INFO] [stdout]     |
[INFO] [stdout] 190 -         if (*self as *const T) == (*other as *const T) {
[INFO] [stdout] 190 +         if std::ptr::eq((*self as *const T), (*other as *const T)) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "883d78fa290dd7a1bf8912c7083bedafbab13b94154223a37bb8337777d6749e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "883d78fa290dd7a1bf8912c7083bedafbab13b94154223a37bb8337777d6749e", kill_on_drop: false }`
[INFO] [stdout] 883d78fa290dd7a1bf8912c7083bedafbab13b94154223a37bb8337777d6749e