[INFO] updating cached repository jaemk/migrant
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jaemk/migrant
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jaemk/migrant" "work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/jaemk/migrant"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/jaemk/migrant'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jaemk/migrant" "work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/jaemk/migrant"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/jaemk/migrant'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 559df4953fdb3f3d2ebcb3d38fd5f0272ce49773
[INFO] sha for GitHub repo jaemk/migrant: 559df4953fdb3f3d2ebcb3d38fd5f0272ce49773
[INFO] validating manifest of jaemk/migrant on toolchain master#efe2f32a6b8217425f361ec7c206910c611c03ee
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jaemk/migrant on toolchain try#78b0bd8441ef961f6475e3d47fe3bca38cb83432
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jaemk/migrant
[INFO] finished frobbing jaemk/migrant
[INFO] frobbed toml for jaemk/migrant written to work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/jaemk/migrant/Cargo.toml
[INFO] started frobbing jaemk/migrant
[INFO] finished frobbing jaemk/migrant
[INFO] frobbed toml for jaemk/migrant written to work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/jaemk/migrant/Cargo.toml
[INFO] crate jaemk/migrant already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/jaemk/migrant/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking jaemk/migrant against master#efe2f32a6b8217425f361ec7c206910c611c03ee for pr-60039
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039/worker-7/master#efe2f32a6b8217425f361ec7c206910c611c03ee:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/jaemk/migrant:/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" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3fce7c149b76b38f9d769f98ebfe53c7d357421bc4936b962f62a34938d46449
[INFO] running `"docker" "start" "-a" "3fce7c149b76b38f9d769f98ebfe53c7d357421bc4936b962f62a34938d46449"`
[INFO] [stderr]    Compiling pulldown-cmark v0.2.0
[INFO] [stderr]    Compiling bytecount v0.4.0
[INFO] [stderr]    Compiling error-chain v0.12.0
[INFO] [stderr]     Checking migrant_lib v0.22.0
[INFO] [stderr]    Compiling cargo_metadata v0.6.4
[INFO] [stderr]     Checking migrant v0.12.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | /     error_chain! {
[INFO] [stderr] 20 | |         foreign_links {
[INFO] [stderr] 21 | |             MigrantLib(migrant_lib::Error);
[INFO] [stderr] 22 | |             SelfUpdate(self_update::errors::Error) #[cfg(feature="update")];
[INFO] [stderr] 23 | |             Io(io::Error);
[INFO] [stderr] 24 | |         }
[INFO] [stderr] 25 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | /     error_chain! {
[INFO] [stderr] 20 | |         foreign_links {
[INFO] [stderr] 21 | |             MigrantLib(migrant_lib::Error);
[INFO] [stderr] 22 | |             SelfUpdate(self_update::errors::Error) #[cfg(feature="update")];
[INFO] [stderr] 23 | |             Io(io::Error);
[INFO] [stderr] 24 | |         }
[INFO] [stderr] 25 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]    Compiling skeptic v0.13.4
[INFO] [stderr]    Compiling assert_cli v0.5.4
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | /     error_chain! {
[INFO] [stderr] 20 | |         foreign_links {
[INFO] [stderr] 21 | |             MigrantLib(migrant_lib::Error);
[INFO] [stderr] 22 | |             SelfUpdate(self_update::errors::Error) #[cfg(feature="update")];
[INFO] [stderr] 23 | |             Io(io::Error);
[INFO] [stderr] 24 | |         }
[INFO] [stderr] 25 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | /     error_chain! {
[INFO] [stderr] 20 | |         foreign_links {
[INFO] [stderr] 21 | |             MigrantLib(migrant_lib::Error);
[INFO] [stderr] 22 | |             SelfUpdate(self_update::errors::Error) #[cfg(feature="update")];
[INFO] [stderr] 23 | |             Io(io::Error);
[INFO] [stderr] 24 | |         }
[INFO] [stderr] 25 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.53s
[INFO] running `"docker" "inspect" "3fce7c149b76b38f9d769f98ebfe53c7d357421bc4936b962f62a34938d46449"`
[INFO] running `"docker" "rm" "-f" "3fce7c149b76b38f9d769f98ebfe53c7d357421bc4936b962f62a34938d46449"`
[INFO] [stdout] 3fce7c149b76b38f9d769f98ebfe53c7d357421bc4936b962f62a34938d46449