[INFO] crate serde_json_v8 0.0.1 is already in cache
[INFO] extracting crate serde_json_v8 0.0.1 into work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/serde_json_v8/0.0.1
[INFO] extracting crate serde_json_v8 0.0.1 into work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/serde_json_v8/0.0.1
[INFO] validating manifest of serde_json_v8-0.0.1 on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of serde_json_v8-0.0.1 on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing serde_json_v8-0.0.1
[INFO] finished frobbing serde_json_v8-0.0.1
[INFO] frobbed toml for serde_json_v8-0.0.1 written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/serde_json_v8/0.0.1/Cargo.toml
[INFO] started frobbing serde_json_v8-0.0.1
[INFO] finished frobbing serde_json_v8-0.0.1
[INFO] frobbed toml for serde_json_v8-0.0.1 written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/serde_json_v8/0.0.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking serde_json_v8-0.0.1 against master#435236b8877cdb98c82eaebfb7887782277265c5 for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-2/master#435236b8877cdb98c82eaebfb7887782277265c5:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/serde_json_v8/0.0.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a7352b4e9509d2730a42b6421623ab897e84266c1478c99aef811942f36d550b
[INFO] running `"docker" "start" "-a" "a7352b4e9509d2730a42b6421623ab897e84266c1478c99aef811942f36d550b"`
[INFO] [stderr]    Compiling stacker v0.1.5
[INFO] [stderr]    Compiling automod v0.1.1
[INFO] [stderr]     Checking serde_bytes v0.11.2
[INFO] [stderr]     Checking serde_json_v8 v0.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Checking compiletest_rs v0.3.22
[INFO] [stderr]     Checking serde_stacker v0.1.0
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]    --> src/lib.rs:321:1
[INFO] [stderr]     |
[INFO] [stderr] 321 | #[macro_use]
[INFO] [stderr]     | ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]    --> src/lib.rs:321:1
[INFO] [stderr]     |
[INFO] [stderr] 321 | #[macro_use]
[INFO] [stderr]     | ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.65s
[INFO] running `"docker" "inspect" "a7352b4e9509d2730a42b6421623ab897e84266c1478c99aef811942f36d550b"`
[INFO] running `"docker" "rm" "-f" "a7352b4e9509d2730a42b6421623ab897e84266c1478c99aef811942f36d550b"`
[INFO] [stdout] a7352b4e9509d2730a42b6421623ab897e84266c1478c99aef811942f36d550b