[INFO] crate source-map-mappings 0.5.0 is already in cache
[INFO] checking source-map-mappings-0.5.0 against try#e922e6444795ab795fab1943288aee3d543699b8 for pr-66852
[INFO] extracting crate source-map-mappings 0.5.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate source-map-mappings 0.5.0 on toolchain e922e6444795ab795fab1943288aee3d543699b8
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e922e6444795ab795fab1943288aee3d543699b8" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate source-map-mappings 0.5.0
[INFO] finished tweaking crates.io crate source-map-mappings 0.5.0
[INFO] tweaked toml for crates.io crate source-map-mappings 0.5.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e922e6444795ab795fab1943288aee3d543699b8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e922e6444795ab795fab1943288aee3d543699b8" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e922e6444795ab795fab1943288aee3d543699b8" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 6382d8bb27fb3dfc2d10793a4590efbe3ef471d4abebf0923ec9ae6b74d40e7a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "6382d8bb27fb3dfc2d10793a4590efbe3ef471d4abebf0923ec9ae6b74d40e7a"`
[INFO] [stderr]     Checking vlq v0.5.1
[INFO] [stderr]     Checking quickcheck v0.5.0
[INFO] [stderr]     Checking source-map-mappings v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/quickcheck.rs:30:29
[INFO] [stderr]    |
[INFO] [stderr] 30 |     fn shrink(&self) -> Box<Iterator<Item = Self>> {
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Self>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/quickcheck.rs:89:29
[INFO] [stderr]    |
[INFO] [stderr] 89 |     fn shrink(&self) -> Box<Iterator<Item = Self>> {
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Self>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/quickcheck.rs:210:29
[INFO] [stderr]     |
[INFO] [stderr] 210 |     fn shrink(&self) -> Box<Iterator<Item = Self>> {
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Self>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/quickcheck.rs:240:29
[INFO] [stderr]     |
[INFO] [stderr] 240 |     fn shrink(&self) -> Box<Iterator<Item = Self>> {
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Self>`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.62s
[INFO] running `"docker" "inspect" "6382d8bb27fb3dfc2d10793a4590efbe3ef471d4abebf0923ec9ae6b74d40e7a"`
[INFO] running `"docker" "rm" "-f" "6382d8bb27fb3dfc2d10793a4590efbe3ef471d4abebf0923ec9ae6b74d40e7a"`
[INFO] [stdout] 6382d8bb27fb3dfc2d10793a4590efbe3ef471d4abebf0923ec9ae6b74d40e7a