[INFO] crate buf_redux 0.8.4 is already in cache
[INFO] testing buf_redux-0.8.4 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate buf_redux 0.8.4 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate buf_redux 0.8.4 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate buf_redux 0.8.4
[INFO] finished tweaking crates.io crate buf_redux 0.8.4
[INFO] tweaked toml for crates.io crate buf_redux 0.8.4 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 82e5bfd70f20886ba30396a55cf2dfd687ff23ce3ccbed45d3069782dcfe88c2
[INFO] running `"docker" "start" "-a" "82e5bfd70f20886ba30396a55cf2dfd687ff23ce3ccbed45d3069782dcfe88c2"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling slice-deque v0.2.4
[INFO] [stderr]    Compiling buf_redux v0.8.4 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:373:45
[INFO] [stderr]     |
[INFO] [stderr] 373 |     pub fn boxed<'a>(self) -> BufReader<Box<Read + 'a>, P> where R: 'a {
[INFO] [stderr]     |                                             ^^^^^^^^^ help: use `dyn`: `dyn Read + 'a`
[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/lib.rs:374:24
[INFO] [stderr]     |
[INFO] [stderr] 374 |         let inner: Box<Read + 'a> = Box::new(self.inner);
[INFO] [stderr]     |                        ^^^^^^^^^ help: use `dyn`: `dyn Read + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:871:32
[INFO] [stderr]     |
[INFO] [stderr] 871 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]     |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1273:42
[INFO] [stderr]      |
[INFO] [stderr] 1273 |     static DROP_ERR_HANDLER: RefCell<Box<Fn(&mut Write, &mut Buffer, io::Error)>>
[INFO] [stderr]      |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Write, &mut Buffer, io::Error)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1273:50
[INFO] [stderr]      |
[INFO] [stderr] 1273 |     static DROP_ERR_HANDLER: RefCell<Box<Fn(&mut Write, &mut Buffer, io::Error)>>
[INFO] [stderr]      |                                                  ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1286:18
[INFO] [stderr]      |
[INFO] [stderr] 1286 | where F: Fn(&mut Write, &mut Buffer, io::Error)
[INFO] [stderr]      |                  ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:868:9
[INFO] [stderr]     |
[INFO] [stderr] 868 |         error::Error::description(self.error())
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]     --> src/lib.rs:1050:17
[INFO] [stderr]      |
[INFO] [stderr] 1050 |             let mut buf = unsafe { self.buf.write_buf() };
[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/lib.rs:1068:17
[INFO] [stderr]      |
[INFO] [stderr] 1068 |             let mut buf = self.buf.write_buf();
[INFO] [stderr]      |                 ----^^^
[INFO] [stderr]      |                 |
[INFO] [stderr]      |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.89s
[INFO] running `"docker" "inspect" "82e5bfd70f20886ba30396a55cf2dfd687ff23ce3ccbed45d3069782dcfe88c2"`
[INFO] running `"docker" "rm" "-f" "82e5bfd70f20886ba30396a55cf2dfd687ff23ce3ccbed45d3069782dcfe88c2"`
[INFO] [stdout] 82e5bfd70f20886ba30396a55cf2dfd687ff23ce3ccbed45d3069782dcfe88c2
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 682c4e88ec91651524044d5bbcad92913bbf93c58aecc0e36719435761452a3d
[INFO] running `"docker" "start" "-a" "682c4e88ec91651524044d5bbcad92913bbf93c58aecc0e36719435761452a3d"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling buf_redux v0.8.4 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:373:45
[INFO] [stderr]     |
[INFO] [stderr] 373 |     pub fn boxed<'a>(self) -> BufReader<Box<Read + 'a>, P> where R: 'a {
[INFO] [stderr]     |                                             ^^^^^^^^^ help: use `dyn`: `dyn Read + 'a`
[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/lib.rs:374:24
[INFO] [stderr]     |
[INFO] [stderr] 374 |         let inner: Box<Read + 'a> = Box::new(self.inner);
[INFO] [stderr]     |                        ^^^^^^^^^ help: use `dyn`: `dyn Read + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:871:32
[INFO] [stderr]     |
[INFO] [stderr] 871 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]     |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1273:42
[INFO] [stderr]      |
[INFO] [stderr] 1273 |     static DROP_ERR_HANDLER: RefCell<Box<Fn(&mut Write, &mut Buffer, io::Error)>>
[INFO] [stderr]      |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Write, &mut Buffer, io::Error)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1273:50
[INFO] [stderr]      |
[INFO] [stderr] 1273 |     static DROP_ERR_HANDLER: RefCell<Box<Fn(&mut Write, &mut Buffer, io::Error)>>
[INFO] [stderr]      |                                                  ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1286:18
[INFO] [stderr]      |
[INFO] [stderr] 1286 | where F: Fn(&mut Write, &mut Buffer, io::Error)
[INFO] [stderr]      |                  ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:868:9
[INFO] [stderr]     |
[INFO] [stderr] 868 |         error::Error::description(self.error())
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]     --> src/lib.rs:1050:17
[INFO] [stderr]      |
[INFO] [stderr] 1050 |             let mut buf = unsafe { self.buf.write_buf() };
[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/lib.rs:1068:17
[INFO] [stderr]      |
[INFO] [stderr] 1068 |             let mut buf = self.buf.write_buf();
[INFO] [stderr]      |                 ----^^^
[INFO] [stderr]      |                 |
[INFO] [stderr]      |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:373:45
[INFO] [stderr]     |
[INFO] [stderr] 373 |     pub fn boxed<'a>(self) -> BufReader<Box<Read + 'a>, P> where R: 'a {
[INFO] [stderr]     |                                             ^^^^^^^^^ help: use `dyn`: `dyn Read + 'a`
[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/lib.rs:374:24
[INFO] [stderr]     |
[INFO] [stderr] 374 |         let inner: Box<Read + 'a> = Box::new(self.inner);
[INFO] [stderr]     |                        ^^^^^^^^^ help: use `dyn`: `dyn Read + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:871:32
[INFO] [stderr]     |
[INFO] [stderr] 871 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]     |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1273:42
[INFO] [stderr]      |
[INFO] [stderr] 1273 |     static DROP_ERR_HANDLER: RefCell<Box<Fn(&mut Write, &mut Buffer, io::Error)>>
[INFO] [stderr]      |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Write, &mut Buffer, io::Error)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1273:50
[INFO] [stderr]      |
[INFO] [stderr] 1273 |     static DROP_ERR_HANDLER: RefCell<Box<Fn(&mut Write, &mut Buffer, io::Error)>>
[INFO] [stderr]      |                                                  ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1286:18
[INFO] [stderr]      |
[INFO] [stderr] 1286 | where F: Fn(&mut Write, &mut Buffer, io::Error)
[INFO] [stderr]      |                  ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:868:9
[INFO] [stderr]     |
[INFO] [stderr] 868 |         error::Error::description(self.error())
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]     --> src/lib.rs:1050:17
[INFO] [stderr]      |
[INFO] [stderr] 1050 |             let mut buf = unsafe { self.buf.write_buf() };
[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/lib.rs:1068:17
[INFO] [stderr]      |
[INFO] [stderr] 1068 |             let mut buf = self.buf.write_buf();
[INFO] [stderr]      |                 ----^^^
[INFO] [stderr]      |                 |
[INFO] [stderr]      |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.24s
[INFO] running `"docker" "inspect" "682c4e88ec91651524044d5bbcad92913bbf93c58aecc0e36719435761452a3d"`
[INFO] running `"docker" "rm" "-f" "682c4e88ec91651524044d5bbcad92913bbf93c58aecc0e36719435761452a3d"`
[INFO] [stdout] 682c4e88ec91651524044d5bbcad92913bbf93c58aecc0e36719435761452a3d
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9d50364a9f313b67566ed793b3b7d347ebc9339c7d57611782e64f5576cf22ce
[INFO] running `"docker" "start" "-a" "9d50364a9f313b67566ed793b3b7d347ebc9339c7d57611782e64f5576cf22ce"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:373:45
[INFO] [stderr]     |
[INFO] [stderr] 373 |     pub fn boxed<'a>(self) -> BufReader<Box<Read + 'a>, P> where R: 'a {
[INFO] [stderr]     |                                             ^^^^^^^^^ help: use `dyn`: `dyn Read + 'a`
[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/lib.rs:374:24
[INFO] [stderr]     |
[INFO] [stderr] 374 |         let inner: Box<Read + 'a> = Box::new(self.inner);
[INFO] [stderr]     |                        ^^^^^^^^^ help: use `dyn`: `dyn Read + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:871:32
[INFO] [stderr]     |
[INFO] [stderr] 871 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]     |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1273:42
[INFO] [stderr]      |
[INFO] [stderr] 1273 |     static DROP_ERR_HANDLER: RefCell<Box<Fn(&mut Write, &mut Buffer, io::Error)>>
[INFO] [stderr]      |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Write, &mut Buffer, io::Error)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1273:50
[INFO] [stderr]      |
[INFO] [stderr] 1273 |     static DROP_ERR_HANDLER: RefCell<Box<Fn(&mut Write, &mut Buffer, io::Error)>>
[INFO] [stderr]      |                                                  ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1286:18
[INFO] [stderr]      |
[INFO] [stderr] 1286 | where F: Fn(&mut Write, &mut Buffer, io::Error)
[INFO] [stderr]      |                  ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:868:9
[INFO] [stderr]     |
[INFO] [stderr] 868 |         error::Error::description(self.error())
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]     --> src/lib.rs:1050:17
[INFO] [stderr]      |
[INFO] [stderr] 1050 |             let mut buf = unsafe { self.buf.write_buf() };
[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/lib.rs:1068:17
[INFO] [stderr]      |
[INFO] [stderr] 1068 |             let mut buf = self.buf.write_buf();
[INFO] [stderr]      |                 ----^^^
[INFO] [stderr]      |                 |
[INFO] [stderr]      |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:373:45
[INFO] [stderr]     |
[INFO] [stderr] 373 |     pub fn boxed<'a>(self) -> BufReader<Box<Read + 'a>, P> where R: 'a {
[INFO] [stderr]     |                                             ^^^^^^^^^ help: use `dyn`: `dyn Read + 'a`
[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/lib.rs:374:24
[INFO] [stderr]     |
[INFO] [stderr] 374 |         let inner: Box<Read + 'a> = Box::new(self.inner);
[INFO] [stderr]     |                        ^^^^^^^^^ help: use `dyn`: `dyn Read + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:871:32
[INFO] [stderr]     |
[INFO] [stderr] 871 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]     |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1273:42
[INFO] [stderr]      |
[INFO] [stderr] 1273 |     static DROP_ERR_HANDLER: RefCell<Box<Fn(&mut Write, &mut Buffer, io::Error)>>
[INFO] [stderr]      |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Write, &mut Buffer, io::Error)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1273:50
[INFO] [stderr]      |
[INFO] [stderr] 1273 |     static DROP_ERR_HANDLER: RefCell<Box<Fn(&mut Write, &mut Buffer, io::Error)>>
[INFO] [stderr]      |                                                  ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1286:18
[INFO] [stderr]      |
[INFO] [stderr] 1286 | where F: Fn(&mut Write, &mut Buffer, io::Error)
[INFO] [stderr]      |                  ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:868:9
[INFO] [stderr]     |
[INFO] [stderr] 868 |         error::Error::description(self.error())
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]     --> src/lib.rs:1050:17
[INFO] [stderr]      |
[INFO] [stderr] 1050 |             let mut buf = unsafe { self.buf.write_buf() };
[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/lib.rs:1068:17
[INFO] [stderr]      |
[INFO] [stderr] 1068 |             let mut buf = self.buf.write_buf();
[INFO] [stderr]      |                 ----^^^
[INFO] [stderr]      |                 |
[INFO] [stderr]      |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/buf_redux-7ceb0d797a643dd3
[INFO] [stdout] 
[INFO] [stdout] running 29 tests
[INFO] [stdout] test ringbuf_tests::test_lines ... ok
[INFO] [stdout] test ringbuf_tests::test_buffer_new ... ok
[INFO] [stdout] test ringbuf_tests::test_mirror_boundary ... ok
[INFO] [stdout] test policy::test::test_flush_at_least ... ok
[INFO] [stdout] test policy::test::test_flush_on ... ok
[INFO] [stdout] test policy::test::test_min_buffered ... ok
[INFO] [stdout] test ringbuf_tests::issue_8 ... ok
[INFO] [stdout] test policy::test::test_flush_on_newline ... ok
[INFO] [stdout] test policy::test::test_flush_exact ... ok
[INFO] [stdout] test ringbuf_tests::test_buffer_with_cap ... ok
[INFO] [stdout] test ringbuf_tests::test_read_until ... ok
[INFO] [stdout] test ringbuf_tests::test_short_reads ... ok
[INFO] [stdout] test ringbuf_tests::test_buffered_reader_seek_underflow ... ok
[INFO] [stdout] test ringbuf_tests::test_buffered_reader_seek ... ok
[INFO] [stdout] test buffer::std_buf::read_into_full ... ok
[INFO] [stdout] test ringbuf_tests::test_buffered_reader ... ok
[INFO] [stdout] test std_tests::test_buffered_writer_inner_flushes ... ok
[INFO] [stderr]    Doc-tests buf_redux
[INFO] [stdout] test std_tests::test_read_line ... ok
[INFO] [stdout] test ringbuf_tests::test_read_line ... ok
[INFO] [stdout] test std_tests::test_buffered_writer_seek ... ok
[INFO] [stdout] test std_tests::test_buffered_writer ... ok
[INFO] [stdout] test std_tests::test_lines ... ok
[INFO] [stdout] test std_tests::test_buf_writer_drops_once ... ok
[INFO] [stdout] test std_tests::test_read_until ... ok
[INFO] [stdout] test std_tests::test_buffered_reader_seek_underflow ... ok
[INFO] [stdout] test std_tests::test_line_buffer ... ok
[INFO] [stdout] test std_tests::test_buffered_reader ... ok
[INFO] [stdout] test std_tests::test_short_reads ... ok
[INFO] [stdout] test std_tests::test_buffered_reader_seek ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 29 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/policy.rs - policy::MinBuffered (line 78) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "9d50364a9f313b67566ed793b3b7d347ebc9339c7d57611782e64f5576cf22ce"`
[INFO] running `"docker" "rm" "-f" "9d50364a9f313b67566ed793b3b7d347ebc9339c7d57611782e64f5576cf22ce"`
[INFO] [stdout] 9d50364a9f313b67566ed793b3b7d347ebc9339c7d57611782e64f5576cf22ce