[INFO] fetching crate rsmt2 0.10.0...
[INFO] extracting crate rsmt2 0.10.0 into work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/rsmt2/0.10.0
[INFO] extracting crate rsmt2 0.10.0 into work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/rsmt2/0.10.0
[INFO] validating manifest of rsmt2-0.10.0 on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rsmt2-0.10.0 on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rsmt2-0.10.0
[INFO] finished frobbing rsmt2-0.10.0
[INFO] frobbed toml for rsmt2-0.10.0 written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/rsmt2/0.10.0/Cargo.toml
[INFO] started frobbing rsmt2-0.10.0
[INFO] finished frobbing rsmt2-0.10.0
[INFO] frobbed toml for rsmt2-0.10.0 written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/rsmt2/0.10.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] building rsmt2-0.10.0 against master#c8865d8e195813ade6b84434ac9f8850e7112d1a for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-2/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/rsmt2/0.10.0:/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "build" "--frozen"`
[INFO] [stdout] d2dc1c3f11b94b2338e52635d4ddf3c5bd38ea8f8a9278831a819e12370dac30
[INFO] running `"docker" "start" "-a" "d2dc1c3f11b94b2338e52635d4ddf3c5bd38ea8f8a9278831a819e12370dac30"`
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]    Compiling rsmt2 v0.10.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/common.rs:36:26
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub fn write_str(w: &mut io::Write, s: &str) -> SmtRes<()> {
[INFO] [stderr]    |                          ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/common.rs:77:33
[INFO] [stderr]    |
[INFO] [stderr] 77 | impl<T, Info> Sym2Smt<Info> for AsRef<T>
[INFO] [stderr]    |                                 ^^^^^^^^ help: use `dyn`: `dyn AsRef<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/common.rs:89:34
[INFO] [stderr]    |
[INFO] [stderr] 89 | impl<T, Info> Expr2Smt<Info> for AsRef<T>
[INFO] [stderr]    |                                  ^^^^^^^^ help: use `dyn`: `dyn AsRef<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/common.rs:101:22
[INFO] [stderr]     |
[INFO] [stderr] 101 | impl<T> Sort2Smt for AsRef<T>
[INFO] [stderr]     |                      ^^^^^^^^ help: use `dyn`: `dyn AsRef<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/common.rs:210:39
[INFO] [stderr]     |
[INFO] [stderr] 210 |     pub fn to_smt2(self, writer: &mut io::Write, _: ()) -> SmtRes<()> {
[INFO] [stderr]     |                                       ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.14s
[INFO] running `"docker" "inspect" "d2dc1c3f11b94b2338e52635d4ddf3c5bd38ea8f8a9278831a819e12370dac30"`
[INFO] running `"docker" "rm" "-f" "d2dc1c3f11b94b2338e52635d4ddf3c5bd38ea8f8a9278831a819e12370dac30"`
[INFO] [stdout] d2dc1c3f11b94b2338e52635d4ddf3c5bd38ea8f8a9278831a819e12370dac30
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-2/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/rsmt2/0.10.0:/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9cd738a3f21fb8ac3b6c1f454d709982166c16589022c723cd65fcd0c62b5f2b
[INFO] running `"docker" "start" "-a" "9cd738a3f21fb8ac3b6c1f454d709982166c16589022c723cd65fcd0c62b5f2b"`
[INFO] [stderr]    Compiling rsmt2 v0.10.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/common.rs:36:26
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub fn write_str(w: &mut io::Write, s: &str) -> SmtRes<()> {
[INFO] [stderr]    |                          ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/common.rs:77:33
[INFO] [stderr]    |
[INFO] [stderr] 77 | impl<T, Info> Sym2Smt<Info> for AsRef<T>
[INFO] [stderr]    |                                 ^^^^^^^^ help: use `dyn`: `dyn AsRef<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/common.rs:89:34
[INFO] [stderr]    |
[INFO] [stderr] 89 | impl<T, Info> Expr2Smt<Info> for AsRef<T>
[INFO] [stderr]    |                                  ^^^^^^^^ help: use `dyn`: `dyn AsRef<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/common.rs:101:22
[INFO] [stderr]     |
[INFO] [stderr] 101 | impl<T> Sort2Smt for AsRef<T>
[INFO] [stderr]     |                      ^^^^^^^^ help: use `dyn`: `dyn AsRef<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/common.rs:210:39
[INFO] [stderr]     |
[INFO] [stderr] 210 |     pub fn to_smt2(self, writer: &mut io::Write, _: ()) -> SmtRes<()> {
[INFO] [stderr]     |                                       ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.69s
[INFO] running `"docker" "inspect" "9cd738a3f21fb8ac3b6c1f454d709982166c16589022c723cd65fcd0c62b5f2b"`
[INFO] running `"docker" "rm" "-f" "9cd738a3f21fb8ac3b6c1f454d709982166c16589022c723cd65fcd0c62b5f2b"`
[INFO] [stdout] 9cd738a3f21fb8ac3b6c1f454d709982166c16589022c723cd65fcd0c62b5f2b