[INFO] updating cached repository https://github.com/tercen/rustson
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1e76b230626c13eaa6920cec0ab26d34273e15cc
[INFO] checking tercen/rustson against try#7cb06892a23b4da510686618c8730f0b2e8bd952 for pr-66963
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftercen%2Frustson" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tercen/rustson on toolchain 7cb06892a23b4da510686618c8730f0b2e8bd952
[INFO] running `"/workspace/cargo-home/bin/cargo" "+7cb06892a23b4da510686618c8730f0b2e8bd952" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/tercen/rustson
[INFO] finished tweaking git repo https://github.com/tercen/rustson
[INFO] tweaked toml for git repo https://github.com/tercen/rustson written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+7cb06892a23b4da510686618c8730f0b2e8bd952" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+7cb06892a23b4da510686618c8730f0b2e8bd952" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=forbid" "-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" "+7cb06892a23b4da510686618c8730f0b2e8bd952" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 57613e75a4e3fffc9b1637333709c7c969e98a5a05849e0372f9420ee537083f
[INFO] running `"docker" "start" "-a" "57613e75a4e3fffc9b1637333709c7c969e98a5a05849e0372f9420ee537083f"`
[INFO] [stderr]     Checking tokio-reactor v0.1.11
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio-udp v0.1.5
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking rustson v0.2.10 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/deser.rs:96:37
[INFO] [stderr]    |
[INFO] [stderr] 96 |     pub fn read(&self, reader: &mut Reader) -> Result<Value> {
[INFO] [stderr]    |                                     ^^^^^^ help: use `dyn`: `dyn Reader`
[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/deser.rs:112:38
[INFO] [stderr]     |
[INFO] [stderr] 112 |     fn read_type(&self, reader: &mut Reader) -> Result<u8> {
[INFO] [stderr]     |                                      ^^^^^^ help: use `dyn`: `dyn Reader`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/deser.rs:116:37
[INFO] [stderr]     |
[INFO] [stderr] 116 |     fn read_len(&self, reader: &mut Reader) -> Result<usize> {
[INFO] [stderr]     |                                     ^^^^^^ help: use `dyn`: `dyn Reader`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/deser.rs:120:40
[INFO] [stderr]     |
[INFO] [stderr] 120 |     fn read_string(&self, reader: &mut Reader) -> Result<String> {
[INFO] [stderr]     |                                        ^^^^^^ help: use `dyn`: `dyn Reader`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/deser.rs:139:40
[INFO] [stderr]     |
[INFO] [stderr] 139 |     fn read_object(&self, reader: &mut Reader) -> Result<Value> {
[INFO] [stderr]     |                                        ^^^^^^ help: use `dyn`: `dyn Reader`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:144:53
[INFO] [stderr]     |
[INFO] [stderr] 144 |     pub fn write(&self, value: &Value, writer: &mut Writer) -> Result<()> {
[INFO] [stderr]     |                                                     ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:149:51
[INFO] [stderr]     |
[INFO] [stderr] 149 |     fn add_object(&self, value: &Value, buf: &mut Writer) -> Result<()> {
[INFO] [stderr]     |                                                   ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:276:33
[INFO] [stderr]     |
[INFO] [stderr] 276 |     fn add_len(&self, buf: &mut Writer, len: usize) -> Result<()> {
[INFO] [stderr]     |                                 ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:283:36
[INFO] [stderr]     |
[INFO] [stderr] 283 |     fn add_string(&self, buf: &mut Writer, value: &str) -> Result<()> {
[INFO] [stderr]     |                                    ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:288:37
[INFO] [stderr]     |
[INFO] [stderr] 288 |     fn add_cstring(&self, buf: &mut Writer, value: &str) -> Result<()> {
[INFO] [stderr]     |                                     ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `futures::future::lazy`
[INFO] [stderr]   --> src/stream.rs:66:13
[INFO] [stderr]    |
[INFO] [stderr] 66 |         use futures::future::lazy;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tokio::runtime::Runtime`
[INFO] [stderr]   --> src/stream.rs:68:13
[INFO] [stderr]    |
[INFO] [stderr] 68 |         use tokio::runtime::Runtime;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:54:32
[INFO] [stderr]    |
[INFO] [stderr] 54 |     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:59:34
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn source(&self) -> Option<&(error::Error + 'static)> { None }
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error + 'static`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `iter` found for type `&mut T` in the current scope
[INFO] [stderr]   --> src/deser.rs:24:25
[INFO] [stderr]    |
[INFO] [stderr] 24 |         buf.extend(self.iter());
[INFO] [stderr]    |                         ^^^^ method not found in `&mut T`
[INFO] [stderr]    |
[INFO] [stderr]    = help: items from traits can only be used if the type parameter is bounded by the trait
[INFO] [stderr] help: the following trait defines an item `iter`, perhaps you need to restrict type parameter `T` with it:
[INFO] [stderr]    |
[INFO] [stderr] 22 | impl<T: bytes::buf::buf::Buf> Reader for T where T: Buf {
[INFO] [stderr]    |      ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/deser.rs:96:37
[INFO] [stderr]    |
[INFO] [stderr] 96 |     pub fn read(&self, reader: &mut Reader) -> Result<Value> {
[INFO] [stderr]    |                                     ^^^^^^ help: use `dyn`: `dyn Reader`
[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/deser.rs:112:38
[INFO] [stderr]     |
[INFO] [stderr] 112 |     fn read_type(&self, reader: &mut Reader) -> Result<u8> {
[INFO] [stderr]     |                                      ^^^^^^ help: use `dyn`: `dyn Reader`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/deser.rs:116:37
[INFO] [stderr]     |
[INFO] [stderr] 116 |     fn read_len(&self, reader: &mut Reader) -> Result<usize> {
[INFO] [stderr]     |                                     ^^^^^^ help: use `dyn`: `dyn Reader`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/deser.rs:120:40
[INFO] [stderr]     |
[INFO] [stderr] 120 |     fn read_string(&self, reader: &mut Reader) -> Result<String> {
[INFO] [stderr]     |                                        ^^^^^^ help: use `dyn`: `dyn Reader`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/deser.rs:139:40
[INFO] [stderr]     |
[INFO] [stderr] 139 |     fn read_object(&self, reader: &mut Reader) -> Result<Value> {
[INFO] [stderr]     |                                        ^^^^^^ help: use `dyn`: `dyn Reader`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:144:53
[INFO] [stderr]     |
[INFO] [stderr] 144 |     pub fn write(&self, value: &Value, writer: &mut Writer) -> Result<()> {
[INFO] [stderr]     |                                                     ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:149:51
[INFO] [stderr]     |
[INFO] [stderr] 149 |     fn add_object(&self, value: &Value, buf: &mut Writer) -> Result<()> {
[INFO] [stderr]     |                                                   ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:276:33
[INFO] [stderr]     |
[INFO] [stderr] 276 |     fn add_len(&self, buf: &mut Writer, len: usize) -> Result<()> {
[INFO] [stderr]     |                                 ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:283:36
[INFO] [stderr]     |
[INFO] [stderr] 283 |     fn add_string(&self, buf: &mut Writer, value: &str) -> Result<()> {
[INFO] [stderr]     |                                    ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ser.rs:288:37
[INFO] [stderr]     |
[INFO] [stderr] 288 |     fn add_cstring(&self, buf: &mut Writer, value: &str) -> Result<()> {
[INFO] [stderr]     |                                     ^^^^^^ help: use `dyn`: `dyn Writer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:54:32
[INFO] [stderr]    |
[INFO] [stderr] 54 |     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:59:34
[INFO] [stderr]    |
[INFO] [stderr] 59 |     fn source(&self) -> Option<&(error::Error + 'static)> { None }
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error + 'static`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: could not compile `rustson`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0599]: no method named `iter` found for type `&mut T` in the current scope
[INFO] [stderr]   --> src/deser.rs:24:25
[INFO] [stderr]    |
[INFO] [stderr] 24 |         buf.extend(self.iter());
[INFO] [stderr]    |                         ^^^^ method not found in `&mut T`
[INFO] [stderr]    |
[INFO] [stderr]    = help: items from traits can only be used if the type parameter is bounded by the trait
[INFO] [stderr] help: the following trait defines an item `iter`, perhaps you need to restrict type parameter `T` with it:
[INFO] [stderr]    |
[INFO] [stderr] 22 | impl<T: bytes::buf::buf::Buf> Reader for T where T: Buf {
[INFO] [stderr]    |      ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: could not compile `rustson`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "57613e75a4e3fffc9b1637333709c7c969e98a5a05849e0372f9420ee537083f"`
[INFO] running `"docker" "rm" "-f" "57613e75a4e3fffc9b1637333709c7c969e98a5a05849e0372f9420ee537083f"`
[INFO] [stdout] 57613e75a4e3fffc9b1637333709c7c969e98a5a05849e0372f9420ee537083f