[INFO] crate flep 0.2.0 is already in cache
[INFO] extracting crate flep 0.2.0 into work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/reg/flep/0.2.0
[INFO] extracting crate flep 0.2.0 into work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/reg/flep/0.2.0
[INFO] validating manifest of flep-0.2.0 on toolchain master#d99a320cba42f661aebfa1293b7b2ec3603dda75
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of flep-0.2.0 on toolchain try#e70472fc501b855c9080f3772432c10fe20b8866
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing flep-0.2.0
[INFO] finished frobbing flep-0.2.0
[INFO] frobbed toml for flep-0.2.0 written to work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/reg/flep/0.2.0/Cargo.toml
[INFO] started frobbing flep-0.2.0
[INFO] finished frobbing flep-0.2.0
[INFO] frobbed toml for flep-0.2.0 written to work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/reg/flep/0.2.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking flep-0.2.0 against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-5/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/reg/flep/0.2.0:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 1f788805c9bc5f6467ebb943865597d823518b8dcd4940ce3e6b108d014fdcc6
[INFO] running `"docker" "start" "-a" "1f788805c9bc5f6467ebb943865597d823518b8dcd4940ce3e6b108d014fdcc6"`
[INFO] [stderr]     Checking rfc1700 v0.1.2
[INFO] [stderr]     Checking flep_protocol v0.2.0
[INFO] [stderr]     Checking flep v0.2.0 (/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/errors.rs:3:1
[INFO] [stderr]    |
[INFO] [stderr] 3  | / error_chain! {
[INFO] [stderr] 4  | |     types {
[INFO] [stderr] 5  | |         Error, ErrorKind, ResultExt;
[INFO] [stderr] 6  | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 14 | |     }
[INFO] [stderr] 15 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr]    = note: this error 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/errors.rs:3:1
[INFO] [stderr]    |
[INFO] [stderr] 3  | / error_chain! {
[INFO] [stderr] 4  | |     types {
[INFO] [stderr] 5  | |         Error, ErrorKind, ResultExt;
[INFO] [stderr] 6  | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 14 | |     }
[INFO] [stderr] 15 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr]    = note: this error 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: variable does not need to be mutable
[INFO] [stderr]  --> src/server/client/state/handle/cwd.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let mut session = client.session.expect_ready_mut()?;
[INFO] [stderr]   |         ----^^^^^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/server/client/state/handle/cdup.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let mut session = client.session.expect_ready_mut()?;
[INFO] [stderr]   |         ----^^^^^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/server/client/state/handle/ty.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let mut session = client.session.expect_ready_mut()?;
[INFO] [stderr]   |         ----^^^^^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/server/client/state/handle/passive.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let mut session = client.session.expect_ready_mut()?;
[INFO] [stderr]    |         ----^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/server/client/state/handle/active.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let mut session = client.session.expect_ready_mut()?;
[INFO] [stderr]   |         ----^^^^^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/server/client/state/handle/cwd.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let mut session = client.session.expect_ready_mut()?;
[INFO] [stderr]   |         ----^^^^^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/server/client/state/handle/cdup.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let mut session = client.session.expect_ready_mut()?;
[INFO] [stderr]   |         ----^^^^^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/server/client/state/handle/ty.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let mut session = client.session.expect_ready_mut()?;
[INFO] [stderr]   |         ----^^^^^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/server/client/state/handle/passive.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let mut session = client.session.expect_ready_mut()?;
[INFO] [stderr]    |         ----^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/server/client/state/handle/active.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let mut session = client.session.expect_ready_mut()?;
[INFO] [stderr]   |         ----^^^^^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.32s
[INFO] running `"docker" "inspect" "1f788805c9bc5f6467ebb943865597d823518b8dcd4940ce3e6b108d014fdcc6"`
[INFO] running `"docker" "rm" "-f" "1f788805c9bc5f6467ebb943865597d823518b8dcd4940ce3e6b108d014fdcc6"`
[INFO] [stdout] 1f788805c9bc5f6467ebb943865597d823518b8dcd4940ce3e6b108d014fdcc6