[INFO] fetching crate rsmt2 0.10.0...
[INFO] checking rsmt2-0.10.0 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate rsmt2 0.10.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate rsmt2 0.10.0 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rsmt2 0.10.0
[INFO] finished tweaking crates.io crate rsmt2 0.10.0
[INFO] tweaked toml for crates.io crate rsmt2 0.10.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 838f4c85bc01a2ab18c01e0862bc3f1ad76e83d4de23f36ee3dd22361324b320
[INFO] running `"docker" "start" "-a" "838f4c85bc01a2ab18c01e0862bc3f1ad76e83d4de23f36ee3dd22361324b320"`
[INFO] [stderr]     Checking error-chain v0.12.1
[INFO] [stderr]     Checking rsmt2 v0.10.0 (/opt/rustwide/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]    = note: `#[warn(bare_trait_objects)]` on by default
[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] 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]    = note: `#[warn(bare_trait_objects)]` on by default
[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 3.22s
[INFO] running `"docker" "inspect" "838f4c85bc01a2ab18c01e0862bc3f1ad76e83d4de23f36ee3dd22361324b320"`
[INFO] running `"docker" "rm" "-f" "838f4c85bc01a2ab18c01e0862bc3f1ad76e83d4de23f36ee3dd22361324b320"`
[INFO] [stdout] 838f4c85bc01a2ab18c01e0862bc3f1ad76e83d4de23f36ee3dd22361324b320