[INFO] crate libmount 0.1.12 is already in cache
[INFO] extracting crate libmount 0.1.12 into work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/libmount/0.1.12
[INFO] extracting crate libmount 0.1.12 into work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/libmount/0.1.12
[INFO] validating manifest of libmount-0.1.12 on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of libmount-0.1.12 on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing libmount-0.1.12
[INFO] finished frobbing libmount-0.1.12
[INFO] frobbed toml for libmount-0.1.12 written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/libmount/0.1.12/Cargo.toml
[INFO] started frobbing libmount-0.1.12
[INFO] finished frobbing libmount-0.1.12
[INFO] frobbed toml for libmount-0.1.12 written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/libmount/0.1.12/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking libmount-0.1.12 against try#d3301713b54af69ca9de941a8c6b0d8287dbd6df for pr-61874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-5/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/libmount/0.1.12:/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" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b4bb7d71d31d6bef735b155e8397ac0354584d5fc07a5fecce8aa5e42a94211f
[INFO] running `"docker" "start" "-a" "b4bb7d71d31d6bef735b155e8397ac0354584d5fc07a5fecce8aa5e42a94211f"`
[INFO] [stderr]     Checking libmount v0.1.12 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:35:32
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stderr]    |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[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/error.rs:50:32
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stderr]    |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:78:36
[INFO] [stderr]    |
[INFO] [stderr] 78 | pub struct OSError(MountError, Box<Explainable>);
[INFO] [stderr]    |                                    ^^^^^^^^^^^ help: use `dyn`: `dyn Explainable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:81:45
[INFO] [stderr]    |
[INFO] [stderr] 81 |     fn from_io(err: io::Error, explain: Box<Explainable>) -> OSError {
[INFO] [stderr]    |                                             ^^^^^^^^^^^ help: use `dyn`: `dyn Explainable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:85:53
[INFO] [stderr]    |
[INFO] [stderr] 85 |     fn from_remount(err: RemountError, explain: Box<Explainable>) -> OSError {
[INFO] [stderr]    |                                                     ^^^^^^^^^^^ help: use `dyn`: `dyn Explainable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:96:22
[INFO] [stderr]    |
[INFO] [stderr] 96 | pub struct Error(Box<Explainable>, io::Error, String);
[INFO] [stderr]    |                      ^^^^^^^^^^^ help: use `dyn`: `dyn Explainable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:35:32
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stderr]    |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[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/error.rs:50:32
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stderr]    |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:78:36
[INFO] [stderr]    |
[INFO] [stderr] 78 | pub struct OSError(MountError, Box<Explainable>);
[INFO] [stderr]    |                                    ^^^^^^^^^^^ help: use `dyn`: `dyn Explainable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:81:45
[INFO] [stderr]    |
[INFO] [stderr] 81 |     fn from_io(err: io::Error, explain: Box<Explainable>) -> OSError {
[INFO] [stderr]    |                                             ^^^^^^^^^^^ help: use `dyn`: `dyn Explainable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:85:53
[INFO] [stderr]    |
[INFO] [stderr] 85 |     fn from_remount(err: RemountError, explain: Box<Explainable>) -> OSError {
[INFO] [stderr]    |                                                     ^^^^^^^^^^^ help: use `dyn`: `dyn Explainable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:96:22
[INFO] [stderr]    |
[INFO] [stderr] 96 | pub struct Error(Box<Explainable>, io::Error, String);
[INFO] [stderr]    |                      ^^^^^^^^^^^ help: use `dyn`: `dyn Explainable`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.25s
[INFO] running `"docker" "inspect" "b4bb7d71d31d6bef735b155e8397ac0354584d5fc07a5fecce8aa5e42a94211f"`
[INFO] running `"docker" "rm" "-f" "b4bb7d71d31d6bef735b155e8397ac0354584d5fc07a5fecce8aa5e42a94211f"`
[INFO] [stdout] b4bb7d71d31d6bef735b155e8397ac0354584d5fc07a5fecce8aa5e42a94211f