[INFO] fetching crate iostream 0.1.3...
[INFO] checking iostream-0.1.3 against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] extracting crate iostream 0.1.3 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate iostream 0.1.3 on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate iostream 0.1.3
[INFO] finished tweaking crates.io crate iostream 0.1.3
[INFO] tweaked toml for crates.io crate iostream 0.1.3 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 25dee53328eb58866475d2461654112fce5a5189aa79db91837a3789196dc868
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "25dee53328eb58866475d2461654112fce5a5189aa79db91837a3789196dc868", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25dee53328eb58866475d2461654112fce5a5189aa79db91837a3789196dc868", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25dee53328eb58866475d2461654112fce5a5189aa79db91837a3789196dc868", kill_on_drop: false }`
[INFO] [stdout] 25dee53328eb58866475d2461654112fce5a5189aa79db91837a3789196dc868
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25265eb1b4624aedd401db2bd770a508e472824f08d1217257a38f03dac02d06
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "25265eb1b4624aedd401db2bd770a508e472824f08d1217257a38f03dac02d06", kill_on_drop: false }`
[INFO] [stderr]     Checking iostream v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/io/stream_rw/stream_reader.rs:8:30
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub base_stream: &'a mut Stream,
[INFO] [stdout]   |                              ^^^^^^ help: use `dyn`: `dyn Stream`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/io/stream_rw/stream_reader.rs:21:33
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn from(stream: &'a mut Stream) -> Result<StreamReader<'a>, String> {
[INFO] [stdout]    |                                 ^^^^^^ help: use `dyn`: `dyn Stream`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/io/stream_rw/stream_reader.rs:39:44
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn from_big_endian(stream: &'a mut Stream) -> Result<StreamReader<'a>, String> {
[INFO] [stdout]    |                                            ^^^^^^ help: use `dyn`: `dyn Stream`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/io/stream_rw/stream_writer.rs:7:30
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pub base_stream: &'a mut Stream,
[INFO] [stdout]   |                              ^^^^^^ help: use `dyn`: `dyn Stream`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/io/stream_rw/stream_writer.rs:20:33
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn from(stream: &'a mut Stream) -> Result<StreamWriter<'a>, String> {
[INFO] [stdout]    |                                 ^^^^^^ help: use `dyn`: `dyn Stream`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/io/stream_rw/stream_writer.rs:39:44
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn from_big_endian(stream: &'a mut Stream) -> Result<StreamWriter<'a>, String> {
[INFO] [stdout]    |                                            ^^^^^^ help: use `dyn`: `dyn Stream`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/io/mod.rs:44:40
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn copy_to(&mut self, target: &mut Stream) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]    |                                        ^^^^^^ help: use `dyn`: `dyn Stream`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:50:32
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/io/stream_rw/stream_reader.rs:8:30
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub base_stream: &'a mut Stream,
[INFO] [stdout]   |                              ^^^^^^ help: use `dyn`: `dyn Stream`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/io/stream_rw/stream_reader.rs:21:33
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn from(stream: &'a mut Stream) -> Result<StreamReader<'a>, String> {
[INFO] [stdout]    |                                 ^^^^^^ help: use `dyn`: `dyn Stream`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/io/stream_rw/stream_reader.rs:39:44
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn from_big_endian(stream: &'a mut Stream) -> Result<StreamReader<'a>, String> {
[INFO] [stdout]    |                                            ^^^^^^ help: use `dyn`: `dyn Stream`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/io/stream_rw/stream_writer.rs:7:30
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pub base_stream: &'a mut Stream,
[INFO] [stdout]   |                              ^^^^^^ help: use `dyn`: `dyn Stream`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/io/stream_rw/stream_writer.rs:20:33
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn from(stream: &'a mut Stream) -> Result<StreamWriter<'a>, String> {
[INFO] [stdout]    |                                 ^^^^^^ help: use `dyn`: `dyn Stream`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/io/stream_rw/stream_writer.rs:39:44
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn from_big_endian(stream: &'a mut Stream) -> Result<StreamWriter<'a>, String> {
[INFO] [stdout]    |                                            ^^^^^^ help: use `dyn`: `dyn Stream`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/lib.rs:47:23
[INFO] [stdout]    |
[INFO] [stdout] 47 |         self.err_type.description()
[INFO] [stdout]    |                       ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/io/mod.rs:44:40
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn copy_to(&mut self, target: &mut Stream) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]    |                                        ^^^^^^ help: use `dyn`: `dyn Stream`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:50:32
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/lib.rs:47:23
[INFO] [stdout]    |
[INFO] [stdout] 47 |         self.err_type.description()
[INFO] [stdout]    |                       ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.57s
[INFO] running `Command { std: "docker" "inspect" "25265eb1b4624aedd401db2bd770a508e472824f08d1217257a38f03dac02d06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25265eb1b4624aedd401db2bd770a508e472824f08d1217257a38f03dac02d06", kill_on_drop: false }`
[INFO] [stdout] 25265eb1b4624aedd401db2bd770a508e472824f08d1217257a38f03dac02d06