Dec 18 16:27:57.435 INFO checking flep-0.2.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 16:27:57.435 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 16:27:57.671 INFO [stdout] 16c3f3cfa8d6f295698fa2285acfa17e0db0c8689efb1c79c5a077b0dba5ea31
Dec 18 16:27:57.673 INFO running `"docker" "start" "-a" "16c3f3cfa8d6f295698fa2285acfa17e0db0c8689efb1c79c5a077b0dba5ea31"`
Dec 18 16:27:58.375 INFO [stderr]     Checking rfc1700 v0.1.2
Dec 18 16:27:58.670 INFO [stderr]     Checking flep_protocol v0.2.0
Dec 18 16:28:00.284 INFO [stderr]     Checking flep v0.2.0 (/opt/crater/workdir)
Dec 18 16:28:01.085 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 18 16:28:01.085 INFO [stderr]   --> src/errors.rs:3:1
Dec 18 16:28:01.085 INFO [stderr]    |
Dec 18 16:28:01.085 INFO [stderr] 3  | / error_chain! {
Dec 18 16:28:01.085 INFO [stderr] 4  | |     types {
Dec 18 16:28:01.085 INFO [stderr] 5  | |         Error, ErrorKind, ResultExt;
Dec 18 16:28:01.085 INFO [stderr] 6  | |     }
Dec 18 16:28:01.085 INFO [stderr] ...  |
Dec 18 16:28:01.085 INFO [stderr] 14 | |     }
Dec 18 16:28:01.085 INFO [stderr] 15 | | }
Dec 18 16:28:01.086 INFO [stderr]    | |_^
Dec 18 16:28:01.086 INFO [stderr]    |
Dec 18 16:28:01.086 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 18 16:28:01.086 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)
Dec 18 16:28:01.086 INFO [stderr] 
Dec 18 16:28:01.161 INFO [stderr] warning: variable does not need to be mutable
Dec 18 16:28:01.161 INFO [stderr]  --> src/server/client/state/handle/cwd.rs:7:9
Dec 18 16:28:01.161 INFO [stderr]   |
Dec 18 16:28:01.161 INFO [stderr] 7 |     let mut session = client.session.expect_ready_mut()?;
Dec 18 16:28:01.161 INFO [stderr]   |         ----^^^^^^^
Dec 18 16:28:01.161 INFO [stderr]   |         |
Dec 18 16:28:01.161 INFO [stderr]   |         help: remove this `mut`
Dec 18 16:28:01.161 INFO [stderr]   |
Dec 18 16:28:01.161 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 18 16:28:01.161 INFO [stderr] 
Dec 18 16:28:01.162 INFO [stderr] warning: variable does not need to be mutable
Dec 18 16:28:01.162 INFO [stderr]  --> src/server/client/state/handle/cdup.rs:6:9
Dec 18 16:28:01.162 INFO [stderr]   |
Dec 18 16:28:01.162 INFO [stderr] 6 |     let mut session = client.session.expect_ready_mut()?;
Dec 18 16:28:01.162 INFO [stderr]   |         ----^^^^^^^
Dec 18 16:28:01.162 INFO [stderr]   |         |
Dec 18 16:28:01.162 INFO [stderr]   |         help: remove this `mut`
Dec 18 16:28:01.162 INFO [stderr] 
Dec 18 16:28:01.166 INFO [stderr] warning: variable does not need to be mutable
Dec 18 16:28:01.166 INFO [stderr]  --> src/server/client/state/handle/ty.rs:7:9
Dec 18 16:28:01.166 INFO [stderr]   |
Dec 18 16:28:01.166 INFO [stderr] 7 |     let mut session = client.session.expect_ready_mut()?;
Dec 18 16:28:01.166 INFO [stderr]   |         ----^^^^^^^
Dec 18 16:28:01.166 INFO [stderr]   |         |
Dec 18 16:28:01.166 INFO [stderr]   |         help: remove this `mut`
Dec 18 16:28:01.166 INFO [stderr] 
Dec 18 16:28:01.167 INFO [stderr] warning: variable does not need to be mutable
Dec 18 16:28:01.167 INFO [stderr]   --> src/server/client/state/handle/passive.rs:26:9
Dec 18 16:28:01.167 INFO [stderr]    |
Dec 18 16:28:01.167 INFO [stderr] 26 |     let mut session = client.session.expect_ready_mut()?;
Dec 18 16:28:01.167 INFO [stderr]    |         ----^^^^^^^
Dec 18 16:28:01.167 INFO [stderr]    |         |
Dec 18 16:28:01.167 INFO [stderr]    |         help: remove this `mut`
Dec 18 16:28:01.167 INFO [stderr] 
Dec 18 16:28:01.168 INFO [stderr] warning: variable does not need to be mutable
Dec 18 16:28:01.169 INFO [stderr]  --> src/server/client/state/handle/active.rs:8:9
Dec 18 16:28:01.169 INFO [stderr]   |
Dec 18 16:28:01.169 INFO [stderr] 8 |     let mut session = client.session.expect_ready_mut()?;
Dec 18 16:28:01.169 INFO [stderr]   |         ----^^^^^^^
Dec 18 16:28:01.169 INFO [stderr]   |         |
Dec 18 16:28:01.169 INFO [stderr]   |         help: remove this `mut`
Dec 18 16:28:01.169 INFO [stderr] 
Dec 18 16:28:01.256 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 18 16:28:01.256 INFO [stderr]   --> src/errors.rs:3:1
Dec 18 16:28:01.256 INFO [stderr]    |
Dec 18 16:28:01.256 INFO [stderr] 3  | / error_chain! {
Dec 18 16:28:01.256 INFO [stderr] 4  | |     types {
Dec 18 16:28:01.256 INFO [stderr] 5  | |         Error, ErrorKind, ResultExt;
Dec 18 16:28:01.256 INFO [stderr] 6  | |     }
Dec 18 16:28:01.256 INFO [stderr] ...  |
Dec 18 16:28:01.256 INFO [stderr] 14 | |     }
Dec 18 16:28:01.256 INFO [stderr] 15 | | }
Dec 18 16:28:01.256 INFO [stderr]    | |_^
Dec 18 16:28:01.256 INFO [stderr]    |
Dec 18 16:28:01.256 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 18 16:28:01.256 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)
Dec 18 16:28:01.256 INFO [stderr] 
Dec 18 16:28:01.352 INFO [stderr] warning: variable does not need to be mutable
Dec 18 16:28:01.352 INFO [stderr]  --> src/server/client/state/handle/cwd.rs:7:9
Dec 18 16:28:01.352 INFO [stderr]   |
Dec 18 16:28:01.352 INFO [stderr] 7 |     let mut session = client.session.expect_ready_mut()?;
Dec 18 16:28:01.352 INFO [stderr]   |         ----^^^^^^^
Dec 18 16:28:01.352 INFO [stderr]   |         |
Dec 18 16:28:01.352 INFO [stderr]   |         help: remove this `mut`
Dec 18 16:28:01.352 INFO [stderr]   |
Dec 18 16:28:01.352 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 18 16:28:01.352 INFO [stderr] 
Dec 18 16:28:01.356 INFO [stderr] warning: variable does not need to be mutable
Dec 18 16:28:01.356 INFO [stderr]  --> src/server/client/state/handle/cdup.rs:6:9
Dec 18 16:28:01.356 INFO [stderr]   |
Dec 18 16:28:01.356 INFO [stderr] 6 |     let mut session = client.session.expect_ready_mut()?;
Dec 18 16:28:01.356 INFO [stderr]   |         ----^^^^^^^
Dec 18 16:28:01.356 INFO [stderr]   |         |
Dec 18 16:28:01.356 INFO [stderr]   |         help: remove this `mut`
Dec 18 16:28:01.356 INFO [stderr] 
Dec 18 16:28:01.356 INFO [stderr] warning: variable does not need to be mutable
Dec 18 16:28:01.356 INFO [stderr]  --> src/server/client/state/handle/ty.rs:7:9
Dec 18 16:28:01.356 INFO [stderr]   |
Dec 18 16:28:01.356 INFO [stderr] 7 |     let mut session = client.session.expect_ready_mut()?;
Dec 18 16:28:01.356 INFO [stderr]   |         ----^^^^^^^
Dec 18 16:28:01.356 INFO [stderr]   |         |
Dec 18 16:28:01.356 INFO [stderr]   |         help: remove this `mut`
Dec 18 16:28:01.356 INFO [stderr] 
Dec 18 16:28:01.356 INFO [stderr] warning: variable does not need to be mutable
Dec 18 16:28:01.356 INFO [stderr]   --> src/server/client/state/handle/passive.rs:26:9
Dec 18 16:28:01.356 INFO [stderr]    |
Dec 18 16:28:01.356 INFO [stderr] 26 |     let mut session = client.session.expect_ready_mut()?;
Dec 18 16:28:01.356 INFO [stderr]    |         ----^^^^^^^
Dec 18 16:28:01.356 INFO [stderr]    |         |
Dec 18 16:28:01.356 INFO [stderr]    |         help: remove this `mut`
Dec 18 16:28:01.357 INFO [stderr] 
Dec 18 16:28:01.357 INFO [stderr] warning: variable does not need to be mutable
Dec 18 16:28:01.357 INFO [stderr]  --> src/server/client/state/handle/active.rs:8:9
Dec 18 16:28:01.357 INFO [stderr]   |
Dec 18 16:28:01.357 INFO [stderr] 8 |     let mut session = client.session.expect_ready_mut()?;
Dec 18 16:28:01.357 INFO [stderr]   |         ----^^^^^^^
Dec 18 16:28:01.357 INFO [stderr]   |         |
Dec 18 16:28:01.357 INFO [stderr]   |         help: remove this `mut`
Dec 18 16:28:01.357 INFO [stderr] 
Dec 18 16:28:01.824 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.56s
Dec 18 16:28:02.098 INFO running `"docker" "inspect" "16c3f3cfa8d6f295698fa2285acfa17e0db0c8689efb1c79c5a077b0dba5ea31"`
Dec 18 16:28:02.342 INFO running `"docker" "rm" "-f" "16c3f3cfa8d6f295698fa2285acfa17e0db0c8689efb1c79c5a077b0dba5ea31"`
Dec 18 16:28:02.465 INFO [stdout] 16c3f3cfa8d6f295698fa2285acfa17e0db0c8689efb1c79c5a077b0dba5ea31