[INFO] crate snow 0.6.0-alpha2 is already in cache
[INFO] extracting crate snow 0.6.0-alpha2 into work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/reg/snow/0.6.0-alpha2
[INFO] extracting crate snow 0.6.0-alpha2 into work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/reg/snow/0.6.0-alpha2
[INFO] validating manifest of snow-0.6.0-alpha2 on toolchain master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of snow-0.6.0-alpha2 on toolchain try#18481b65f318e0b4b20c0fc61340054701719d6c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing snow-0.6.0-alpha2
[INFO] finished frobbing snow-0.6.0-alpha2
[INFO] frobbed toml for snow-0.6.0-alpha2 written to work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/reg/snow/0.6.0-alpha2/Cargo.toml
[INFO] started frobbing snow-0.6.0-alpha2
[INFO] finished frobbing snow-0.6.0-alpha2
[INFO] frobbed toml for snow-0.6.0-alpha2 written to work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/reg/snow/0.6.0-alpha2/Cargo.toml
[INFO] crate snow-0.6.0-alpha2 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking snow-0.6.0-alpha2 against master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7 for pr-62507
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62507/worker-3/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/reg/snow/0.6.0-alpha2:/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" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 876b8ca6182b5daa12a7e0538bbcfa15312cd632b2de76d85bff3592e39a4a4a
[INFO] running `"docker" "start" "-a" "876b8ca6182b5daa12a7e0538bbcfa15312cd632b2de76d85bff3592e39a4a4a"`
[INFO] [stderr]     Checking memchr v2.2.0
[INFO] [stderr]    Compiling snow v0.6.0-alpha2 (/opt/crater/workdir)
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking criterion-plot v0.3.1
[INFO] [stderr]     Checking rand_xoshiro v0.1.0
[INFO] [stderr]    Compiling digest v0.8.0
[INFO] [stderr]     Checking tinytemplate v1.0.1
[INFO] [stderr]    Compiling curve25519-dalek v1.1.3
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking csv-core v0.1.5
[INFO] [stderr]     Checking csv v1.0.7
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stderr]     Checking x25519-dalek v0.5.2
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.02s
[INFO] running `"docker" "inspect" "876b8ca6182b5daa12a7e0538bbcfa15312cd632b2de76d85bff3592e39a4a4a"`
[INFO] running `"docker" "rm" "-f" "876b8ca6182b5daa12a7e0538bbcfa15312cd632b2de76d85bff3592e39a4a4a"`
[INFO] [stdout] 876b8ca6182b5daa12a7e0538bbcfa15312cd632b2de76d85bff3592e39a4a4a