[INFO] fetching crate testing 0.3.1...
[INFO] extracting crate testing 0.3.1 into work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/testing/0.3.1
[INFO] extracting crate testing 0.3.1 into work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/testing/0.3.1
[INFO] validating manifest of testing-0.3.1 on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of testing-0.3.1 on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing testing-0.3.1
[INFO] finished frobbing testing-0.3.1
[INFO] frobbed toml for testing-0.3.1 written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/testing/0.3.1/Cargo.toml
[INFO] started frobbing testing-0.3.1
[INFO] finished frobbing testing-0.3.1
[INFO] frobbed toml for testing-0.3.1 written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/testing/0.3.1/Cargo.toml
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ast_node v0.4.2
[INFO] [stderr]   Downloaded pmutil v0.3.0
[INFO] [stderr]   Downloaded swc_common v0.3.1
[INFO] [stderr]   Downloaded swc_macros_common v0.2.0
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking testing-0.3.1 against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-3/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/testing/0.3.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d41d7637d32a006d1ab1e4f4b902d934fdff657337f46371a5b144ff6535082b
[INFO] running `"docker" "start" "-a" "d41d7637d32a006d1ab1e4f4b902d934fdff657337f46371a5b144ff6535082b"`
[INFO] [stderr]    Compiling darling_core v0.8.6
[INFO] [stderr]    Compiling pmutil v0.3.0
[INFO] [stderr]     Checking string_cache v0.7.3
[INFO] [stderr]    Compiling swc_macros_common v0.2.0
[INFO] [stderr]    Compiling darling_macro v0.8.6
[INFO] [stderr]    Compiling darling v0.8.6
[INFO] [stderr]    Compiling ast_node v0.4.2
[INFO] [stderr]     Checking swc_common v0.3.1
[INFO] [stderr]     Checking testing v0.3.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:88:32
[INFO] [stderr]    |
[INFO] [stderr] 88 | pub fn print_left_right(left: &Debug, right: &Debug) -> String {
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Debug`
[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]   --> src/lib.rs:88:47
[INFO] [stderr]    |
[INFO] [stderr] 88 | pub fn print_left_right(left: &Debug, right: &Debug) -> String {
[INFO] [stderr]    |                                               ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:89:18
[INFO] [stderr]    |
[INFO] [stderr] 89 |     fn print(t: &Debug) -> String {
[INFO] [stderr]    |                  ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:88:32
[INFO] [stderr]    |
[INFO] [stderr] 88 | pub fn print_left_right(left: &Debug, right: &Debug) -> String {
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Debug`
[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]   --> src/lib.rs:88:47
[INFO] [stderr]    |
[INFO] [stderr] 88 | pub fn print_left_right(left: &Debug, right: &Debug) -> String {
[INFO] [stderr]    |                                               ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:89:18
[INFO] [stderr]    |
[INFO] [stderr] 89 |     fn print(t: &Debug) -> String {
[INFO] [stderr]    |                  ^^^^^ help: use `dyn`: `dyn Debug`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.50s
[INFO] running `"docker" "inspect" "d41d7637d32a006d1ab1e4f4b902d934fdff657337f46371a5b144ff6535082b"`
[INFO] running `"docker" "rm" "-f" "d41d7637d32a006d1ab1e4f4b902d934fdff657337f46371a5b144ff6535082b"`
[INFO] [stdout] d41d7637d32a006d1ab1e4f4b902d934fdff657337f46371a5b144ff6535082b