[INFO] crate lcm 0.2.0 is already in cache
[INFO] extracting crate lcm 0.2.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/lcm/0.2.0
[INFO] extracting crate lcm 0.2.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/lcm/0.2.0
[INFO] validating manifest of lcm-0.2.0 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of lcm-0.2.0 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing lcm-0.2.0
[INFO] finished frobbing lcm-0.2.0
[INFO] frobbed toml for lcm-0.2.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/lcm/0.2.0/Cargo.toml
[INFO] started frobbing lcm-0.2.0
[INFO] finished frobbing lcm-0.2.0
[INFO] frobbed toml for lcm-0.2.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/lcm/0.2.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing lcm-0.2.0 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/lcm/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] a3e7874aac38c23d5a19b94a9d2bad0a7dfbce551c776c68f67a701bb20e036b
[INFO] running `"docker" "start" "-a" "a3e7874aac38c23d5a19b94a9d2bad0a7dfbce551c776c68f67a701bb20e036b"`
[INFO] [stderr]    Compiling lcm v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lcm.rs:23:18
[INFO] [stderr]    |
[INFO] [stderr] 23 |     handler: Box<FnMut(*const lcm_recv_buf_t)>,
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(*const lcm_recv_buf_t)`
[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/message.rs:19:42
[INFO] [stderr]    |
[INFO] [stderr] 19 |     fn decode_with_hash(mut buffer: &mut Read) -> Result<Self>
[INFO] [stderr]    |                                          ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/message.rs:38:35
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn encode(&self, buffer: &mut Write) -> Result<()>;
[INFO] [stderr]    |                                   ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/message.rs:41:28
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn decode(buffer: &mut Read) -> Result<Self> where Self: Sized;
[INFO] [stderr]    |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/message.rs:48:35
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn encode(&self, buffer: &mut Write) -> Result<()> {
[INFO] [stderr]    |                                   ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/message.rs:56:28
[INFO] [stderr]    |
[INFO] [stderr] 56 |     fn decode(buffer: &mut Read) -> Result<Self> {
[INFO] [stderr]    |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/message.rs:72:35
[INFO] [stderr]    |
[INFO] [stderr] 72 |     fn encode(&self, buffer: &mut Write) -> Result<()> {
[INFO] [stderr]    |                                   ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/message.rs:76:28
[INFO] [stderr]    |
[INFO] [stderr] 76 |     fn decode(buffer: &mut Read) -> Result<Self> {
[INFO] [stderr]    |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/message.rs:86:35
[INFO] [stderr]    |
[INFO] [stderr] 86 |     fn encode(&self, buffer: &mut Write) -> Result<()> {
[INFO] [stderr]    |                                   ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/message.rs:90:28
[INFO] [stderr]    |
[INFO] [stderr] 90 |     fn decode(buffer: &mut Read) -> Result<Self> {
[INFO] [stderr]    |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/message.rs:100:35
[INFO] [stderr]     |
[INFO] [stderr] 100 |     fn encode(&self, buffer: &mut Write) -> Result<()> {
[INFO] [stderr]     |                                   ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/message.rs:104:28
[INFO] [stderr]     |
[INFO] [stderr] 104 |     fn decode(buffer: &mut Read) -> Result<Self> {
[INFO] [stderr]     |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/message.rs:114:35
[INFO] [stderr]     |
[INFO] [stderr] 114 |     fn encode(&self, buffer: &mut Write) -> Result<()> {
[INFO] [stderr]     |                                   ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/message.rs:118:28
[INFO] [stderr]     |
[INFO] [stderr] 118 |     fn decode(buffer: &mut Read) -> Result<Self> {
[INFO] [stderr]     |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/message.rs:128:35
[INFO] [stderr]     |
[INFO] [stderr] 128 |     fn encode(&self, buffer: &mut Write) -> Result<()> {
[INFO] [stderr]     |                                   ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/message.rs:132:28
[INFO] [stderr]     |
[INFO] [stderr] 132 |     fn decode(buffer: &mut Read) -> Result<Self> {
[INFO] [stderr]     |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/message.rs:142:35
[INFO] [stderr]     |
[INFO] [stderr] 142 |     fn encode(&self, buffer: &mut Write) -> Result<()> {
[INFO] [stderr]     |                                   ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/message.rs:146:28
[INFO] [stderr]     |
[INFO] [stderr] 146 |     fn decode(buffer: &mut Read) -> Result<Self> {
[INFO] [stderr]     |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/message.rs:156:35
[INFO] [stderr]     |
[INFO] [stderr] 156 |     fn encode(&self, buffer: &mut Write) -> Result<()> {
[INFO] [stderr]     |                                   ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/message.rs:160:28
[INFO] [stderr]     |
[INFO] [stderr] 160 |     fn decode(buffer: &mut Read) -> Result<Self> {
[INFO] [stderr]     |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/message.rs:170:35
[INFO] [stderr]     |
[INFO] [stderr] 170 |     fn encode(&self, buffer: &mut Write) -> Result<()> {
[INFO] [stderr]     |                                   ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/message.rs:174:28
[INFO] [stderr]     |
[INFO] [stderr] 174 |     fn decode(buffer: &mut Read) -> Result<Self> {
[INFO] [stderr]     |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/message.rs:184:35
[INFO] [stderr]     |
[INFO] [stderr] 184 |     fn encode(&self, buffer: &mut Write) -> Result<()> {
[INFO] [stderr]     |                                   ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/message.rs:194:28
[INFO] [stderr]     |
[INFO] [stderr] 194 |     fn decode(buffer: &mut Read) -> Result<Self> {
[INFO] [stderr]     |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `"docker" "inspect" "a3e7874aac38c23d5a19b94a9d2bad0a7dfbce551c776c68f67a701bb20e036b"`
[INFO] running `"docker" "rm" "-f" "a3e7874aac38c23d5a19b94a9d2bad0a7dfbce551c776c68f67a701bb20e036b"`
[INFO] [stdout] a3e7874aac38c23d5a19b94a9d2bad0a7dfbce551c776c68f67a701bb20e036b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/lcm/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 791df2d0a13b004c40677651628e44998d217f66e9badb0bbb01a816f933fbf5
[INFO] running `"docker" "start" "-a" "791df2d0a13b004c40677651628e44998d217f66e9badb0bbb01a816f933fbf5"`
[INFO] [stderr]    Compiling lcm v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lcm.rs:23:18
[INFO] [stderr]    |
[INFO] [stderr] 23 |     handler: Box<FnMut(*const lcm_recv_buf_t)>,
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(*const lcm_recv_buf_t)`
[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/message.rs:19:42
[INFO] [stderr]    |
[INFO] [stderr] 19 |     fn decode_with_hash(mut buffer: &mut Read) -> Result<Self>
[INFO] [stderr]    |                                          ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/message.rs:38:35
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn encode(&self, buffer: &mut Write) -> Result<()>;
[INFO] [stderr]    |                                   ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/message.rs:41:28
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn decode(buffer: &mut Read) -> Result<Self> where Self: Sized;
[INFO] [stderr]    |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/message.rs:48:35
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn encode(&self, buffer: &mut Write) -> Result<()> {
[INFO] [stderr]    |                                   ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/message.rs:56:28
[INFO] [stderr]    |
[INFO] [stderr] 56 |     fn decode(buffer: &mut Read) -> Result<Self> {
[INFO] [stderr]    |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/message.rs:72:35
[INFO] [stderr]    |
[INFO] [stderr] 72 |     fn encode(&self, buffer: &mut Write) -> Result<()> {
[INFO] [stderr]    |                                   ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/message.rs:76:28
[INFO] [stderr]    |
[INFO] [stderr] 76 |     fn decode(buffer: &mut Read) -> Result<Self> {
[INFO] [stderr]    |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/message.rs:86:35
[INFO] [stderr]    |
[INFO] [stderr] 86 |     fn encode(&self, buffer: &mut Write) -> Result<()> {
[INFO] [stderr]    |                                   ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/message.rs:90:28
[INFO] [stderr]    |
[INFO] [stderr] 90 |     fn decode(buffer: &mut Read) -> Result<Self> {
[INFO] [stderr]    |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/message.rs:100:35
[INFO] [stderr]     |
[INFO] [stderr] 100 |     fn encode(&self, buffer: &mut Write) -> Result<()> {
[INFO] [stderr]     |                                   ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/message.rs:104:28
[INFO] [stderr]     |
[INFO] [stderr] 104 |     fn decode(buffer: &mut Read) -> Result<Self> {
[INFO] [stderr]     |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/message.rs:114:35
[INFO] [stderr]     |
[INFO] [stderr] 114 |     fn encode(&self, buffer: &mut Write) -> Result<()> {
[INFO] [stderr]     |                                   ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/message.rs:118:28
[INFO] [stderr]     |
[INFO] [stderr] 118 |     fn decode(buffer: &mut Read) -> Result<Self> {
[INFO] [stderr]     |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/message.rs:128:35
[INFO] [stderr]     |
[INFO] [stderr] 128 |     fn encode(&self, buffer: &mut Write) -> Result<()> {
[INFO] [stderr]     |                                   ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/message.rs:132:28
[INFO] [stderr]     |
[INFO] [stderr] 132 |     fn decode(buffer: &mut Read) -> Result<Self> {
[INFO] [stderr]     |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/message.rs:142:35
[INFO] [stderr]     |
[INFO] [stderr] 142 |     fn encode(&self, buffer: &mut Write) -> Result<()> {
[INFO] [stderr]     |                                   ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/message.rs:146:28
[INFO] [stderr]     |
[INFO] [stderr] 146 |     fn decode(buffer: &mut Read) -> Result<Self> {
[INFO] [stderr]     |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/message.rs:156:35
[INFO] [stderr]     |
[INFO] [stderr] 156 |     fn encode(&self, buffer: &mut Write) -> Result<()> {
[INFO] [stderr]     |                                   ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/message.rs:160:28
[INFO] [stderr]     |
[INFO] [stderr] 160 |     fn decode(buffer: &mut Read) -> Result<Self> {
[INFO] [stderr]     |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/message.rs:170:35
[INFO] [stderr]     |
[INFO] [stderr] 170 |     fn encode(&self, buffer: &mut Write) -> Result<()> {
[INFO] [stderr]     |                                   ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/message.rs:174:28
[INFO] [stderr]     |
[INFO] [stderr] 174 |     fn decode(buffer: &mut Read) -> Result<Self> {
[INFO] [stderr]     |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/message.rs:184:35
[INFO] [stderr]     |
[INFO] [stderr] 184 |     fn encode(&self, buffer: &mut Write) -> Result<()> {
[INFO] [stderr]     |                                   ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/message.rs:194:28
[INFO] [stderr]     |
[INFO] [stderr] 194 |     fn decode(buffer: &mut Read) -> Result<Self> {
[INFO] [stderr]     |                            ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] error: linking with `cc` failed: exit code: 1
[INFO] [stderr]   |
[INFO] [stderr]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/examples/publisher-2274917f0f532c82.publisher.5yhzid9q-cgu.0.rcgu.o" "/opt/crater/target/debug/examples/publisher-2274917f0f532c82.publisher.5yhzid9q-cgu.1.rcgu.o" "/opt/crater/target/debug/examples/publisher-2274917f0f532c82.publisher.5yhzid9q-cgu.10.rcgu.o" "/opt/crater/target/debug/examples/publisher-2274917f0f532c82.publisher.5yhzid9q-cgu.11.rcgu.o" "/opt/crater/target/debug/examples/publisher-2274917f0f532c82.publisher.5yhzid9q-cgu.12.rcgu.o" "/opt/crater/target/debug/examples/publisher-2274917f0f532c82.publisher.5yhzid9q-cgu.13.rcgu.o" "/opt/crater/target/debug/examples/publisher-2274917f0f532c82.publisher.5yhzid9q-cgu.14.rcgu.o" "/opt/crater/target/debug/examples/publisher-2274917f0f532c82.publisher.5yhzid9q-cgu.15.rcgu.o" "/opt/crater/target/debug/examples/publisher-2274917f0f532c82.publisher.5yhzid9q-cgu.2.rcgu.o" "/opt/crater/target/debug/examples/publisher-2274917f0f532c82.publisher.5yhzid9q-cgu.3.rcgu.o" "/opt/crater/target/debug/examples/publisher-2274917f0f532c82.publisher.5yhzid9q-cgu.4.rcgu.o" "/opt/crater/target/debug/examples/publisher-2274917f0f532c82.publisher.5yhzid9q-cgu.5.rcgu.o" "/opt/crater/target/debug/examples/publisher-2274917f0f532c82.publisher.5yhzid9q-cgu.6.rcgu.o" "/opt/crater/target/debug/examples/publisher-2274917f0f532c82.publisher.5yhzid9q-cgu.7.rcgu.o" "/opt/crater/target/debug/examples/publisher-2274917f0f532c82.publisher.5yhzid9q-cgu.8.rcgu.o" "/opt/crater/target/debug/examples/publisher-2274917f0f532c82.publisher.5yhzid9q-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/examples/publisher-2274917f0f532c82" "/opt/crater/target/debug/examples/publisher-2274917f0f532c82.2cb25t7u37kyvbd5.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/liblcm-86d5bca4aa825363.rlib" "/opt/crater/target/debug/deps/libbyteorder-28a061140ed2d54c.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-1d6d86bd078a28e9.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e9721e46a424e2a9.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-c07193698f282147.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-6da45690f3863086.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-690797036dd27680.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-d3896ccbfd8eda2b.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-7cccc3739e3d7623.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-5e9ba178a513cd29.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-5ca9f83bf63d1f4b.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-bba1c7ef9e950882.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-e23c9de62012deb5.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-9b59dffdcd513d5d.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-17392340ab2e4a97.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-ac21508a81e3f7f3.rlib" "-Wl,-Bdynamic" "-llcm" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /usr/bin/ld: cannot find -llcm
[INFO] [stderr]           collect2: error: ld returned 1 exit status
[INFO] [stderr]           
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `lcm`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: linking with `cc` failed: exit code: 1
[INFO] [stderr]   |
[INFO] [stderr]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/examples/subscriber-32375c8e93823404.subscriber.avmmyx0a-cgu.0.rcgu.o" "/opt/crater/target/debug/examples/subscriber-32375c8e93823404.subscriber.avmmyx0a-cgu.1.rcgu.o" "/opt/crater/target/debug/examples/subscriber-32375c8e93823404.subscriber.avmmyx0a-cgu.10.rcgu.o" "/opt/crater/target/debug/examples/subscriber-32375c8e93823404.subscriber.avmmyx0a-cgu.11.rcgu.o" "/opt/crater/target/debug/examples/subscriber-32375c8e93823404.subscriber.avmmyx0a-cgu.12.rcgu.o" "/opt/crater/target/debug/examples/subscriber-32375c8e93823404.subscriber.avmmyx0a-cgu.13.rcgu.o" "/opt/crater/target/debug/examples/subscriber-32375c8e93823404.subscriber.avmmyx0a-cgu.14.rcgu.o" "/opt/crater/target/debug/examples/subscriber-32375c8e93823404.subscriber.avmmyx0a-cgu.15.rcgu.o" "/opt/crater/target/debug/examples/subscriber-32375c8e93823404.subscriber.avmmyx0a-cgu.2.rcgu.o" "/opt/crater/target/debug/examples/subscriber-32375c8e93823404.subscriber.avmmyx0a-cgu.3.rcgu.o" "/opt/crater/target/debug/examples/subscriber-32375c8e93823404.subscriber.avmmyx0a-cgu.4.rcgu.o" "/opt/crater/target/debug/examples/subscriber-32375c8e93823404.subscriber.avmmyx0a-cgu.5.rcgu.o" "/opt/crater/target/debug/examples/subscriber-32375c8e93823404.subscriber.avmmyx0a-cgu.6.rcgu.o" "/opt/crater/target/debug/examples/subscriber-32375c8e93823404.subscriber.avmmyx0a-cgu.7.rcgu.o" "/opt/crater/target/debug/examples/subscriber-32375c8e93823404.subscriber.avmmyx0a-cgu.8.rcgu.o" "/opt/crater/target/debug/examples/subscriber-32375c8e93823404.subscriber.avmmyx0a-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/examples/subscriber-32375c8e93823404" "/opt/crater/target/debug/examples/subscriber-32375c8e93823404.46o0vtobs29ds41q.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/liblcm-86d5bca4aa825363.rlib" "/opt/crater/target/debug/deps/libbyteorder-28a061140ed2d54c.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-1d6d86bd078a28e9.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e9721e46a424e2a9.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-c07193698f282147.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-6da45690f3863086.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-690797036dd27680.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-d3896ccbfd8eda2b.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-7cccc3739e3d7623.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-5e9ba178a513cd29.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-5ca9f83bf63d1f4b.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-bba1c7ef9e950882.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-e23c9de62012deb5.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-9b59dffdcd513d5d.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-17392340ab2e4a97.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-ac21508a81e3f7f3.rlib" "-Wl,-Bdynamic" "-llcm" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /usr/bin/ld: cannot find -llcm
[INFO] [stderr]           collect2: error: ld returned 1 exit status
[INFO] [stderr]           
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `lcm`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: linking with `cc` failed: exit code: 1
[INFO] [stderr]   |
[INFO] [stderr]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/lcm-9be27094eb6f537c.lcm.50grpuxu-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/lcm-9be27094eb6f537c.lcm.50grpuxu-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/lcm-9be27094eb6f537c.lcm.50grpuxu-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/lcm-9be27094eb6f537c.lcm.50grpuxu-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/lcm-9be27094eb6f537c.lcm.50grpuxu-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/lcm-9be27094eb6f537c.lcm.50grpuxu-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/lcm-9be27094eb6f537c.lcm.50grpuxu-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/lcm-9be27094eb6f537c.lcm.50grpuxu-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/lcm-9be27094eb6f537c.lcm.50grpuxu-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/lcm-9be27094eb6f537c.lcm.50grpuxu-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/lcm-9be27094eb6f537c.lcm.50grpuxu-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/lcm-9be27094eb6f537c.lcm.50grpuxu-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/lcm-9be27094eb6f537c.lcm.50grpuxu-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/lcm-9be27094eb6f537c.lcm.50grpuxu-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/lcm-9be27094eb6f537c.lcm.50grpuxu-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/lcm-9be27094eb6f537c.lcm.50grpuxu-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/lcm-9be27094eb6f537c" "/opt/crater/target/debug/deps/lcm-9be27094eb6f537c.43ih18fr36jgrhb1.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-llcm" "-Wl,-Bstatic" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libtest-f0d86b2ef6410e4f.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libterm-28a84d78fba0104f.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgetopts-625008d0a6744ece.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunicode_width-b85c11af396739da.rlib" "/opt/crater/target/debug/deps/libbyteorder-28a061140ed2d54c.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-1d6d86bd078a28e9.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e9721e46a424e2a9.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-c07193698f282147.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-6da45690f3863086.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-690797036dd27680.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-d3896ccbfd8eda2b.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-7cccc3739e3d7623.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-5e9ba178a513cd29.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-5ca9f83bf63d1f4b.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-bba1c7ef9e950882.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-e23c9de62012deb5.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-9b59dffdcd513d5d.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-17392340ab2e4a97.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-ac21508a81e3f7f3.rlib" "-Wl,-Bdynamic" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /usr/bin/ld: cannot find -llcm
[INFO] [stderr]           collect2: error: ld returned 1 exit status
[INFO] [stderr]           
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `lcm`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "791df2d0a13b004c40677651628e44998d217f66e9badb0bbb01a816f933fbf5"`
[INFO] running `"docker" "rm" "-f" "791df2d0a13b004c40677651628e44998d217f66e9badb0bbb01a816f933fbf5"`
[INFO] [stdout] 791df2d0a13b004c40677651628e44998d217f66e9badb0bbb01a816f933fbf5