[INFO] fetching crate varlink_generator 8.0.0...
[INFO] extracting crate varlink_generator 8.0.0 into work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/varlink_generator/8.0.0
[INFO] extracting crate varlink_generator 8.0.0 into work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/reg/varlink_generator/8.0.0
[INFO] validating manifest of varlink_generator-8.0.0 on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of varlink_generator-8.0.0 on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing varlink_generator-8.0.0
[INFO] finished frobbing varlink_generator-8.0.0
[INFO] frobbed toml for varlink_generator-8.0.0 written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/varlink_generator/8.0.0/Cargo.toml
[INFO] started frobbing varlink_generator-8.0.0
[INFO] finished frobbing varlink_generator-8.0.0
[INFO] frobbed toml for varlink_generator-8.0.0 written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/reg/varlink_generator/8.0.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking varlink_generator-8.0.0 against master#5f9c0448dde167128d668da4555879f64e56af1d for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-2/master#5f9c0448dde167128d668da4555879f64e56af1d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/varlink_generator/8.0.0:/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" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4ca634782f76ded876e8b790959e7ef6b71fc43fbadd1d8eef4581359c07af69
[INFO] running `"docker" "start" "-a" "4ca634782f76ded876e8b790959e7ef6b71fc43fbadd1d8eef4581359c07af69"`
[INFO] [stderr]    Compiling varlink_parser v4.0.2
[INFO] [stderr]     Checking chainerror v0.4.3
[INFO] [stderr]     Checking syn v0.15.39
[INFO] [stderr]     Checking varlink_generator v8.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:801:30
[INFO] [stderr]     |
[INFO] [stderr] 801 | pub fn generate(reader: &mut Read, writer: &mut Write, tosource: bool) -> Result<()> {
[INFO] [stderr]     |                              ^^^^ help: use `dyn`: `dyn Read`
[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:801:49
[INFO] [stderr]     |
[INFO] [stderr] 801 | pub fn generate(reader: &mut Read, writer: &mut Write, tosource: bool) -> Result<()> {
[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:815:18
[INFO] [stderr]     |
[INFO] [stderr] 815 |     reader: &mut Read,
[INFO] [stderr]     |                  ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:816:18
[INFO] [stderr]     |
[INFO] [stderr] 816 |     writer: &mut Write,
[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:958:26
[INFO] [stderr]     |
[INFO] [stderr] 958 |         let writer: &mut Write = &mut (File::create(&rust_path).unwrap_or_else(|e| {
[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:967:26
[INFO] [stderr]     |
[INFO] [stderr] 967 |         let reader: &mut Read = &mut (File::open(input_path).unwrap_or_else(|e| {
[INFO] [stderr]     |                          ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1080:22
[INFO] [stderr]      |
[INFO] [stderr] 1080 |     let writer: &mut Write = &mut (File::create(&rust_path).unwrap_or_else(|e| {
[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:1089:22
[INFO] [stderr]      |
[INFO] [stderr] 1089 |     let reader: &mut Read = &mut (File::open(input_path).unwrap_or_else(|e| {
[INFO] [stderr]      |                      ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:801:30
[INFO] [stderr]     |
[INFO] [stderr] 801 | pub fn generate(reader: &mut Read, writer: &mut Write, tosource: bool) -> Result<()> {
[INFO] [stderr]     |                              ^^^^ help: use `dyn`: `dyn Read`
[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:801:49
[INFO] [stderr]     |
[INFO] [stderr] 801 | pub fn generate(reader: &mut Read, writer: &mut Write, tosource: bool) -> Result<()> {
[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:815:18
[INFO] [stderr]     |
[INFO] [stderr] 815 |     reader: &mut Read,
[INFO] [stderr]     |                  ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:816:18
[INFO] [stderr]     |
[INFO] [stderr] 816 |     writer: &mut Write,
[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:958:26
[INFO] [stderr]     |
[INFO] [stderr] 958 |         let writer: &mut Write = &mut (File::create(&rust_path).unwrap_or_else(|e| {
[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:967:26
[INFO] [stderr]     |
[INFO] [stderr] 967 |         let reader: &mut Read = &mut (File::open(input_path).unwrap_or_else(|e| {
[INFO] [stderr]     |                          ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/lib.rs:1080:22
[INFO] [stderr]      |
[INFO] [stderr] 1080 |     let writer: &mut Write = &mut (File::create(&rust_path).unwrap_or_else(|e| {
[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:1089:22
[INFO] [stderr]      |
[INFO] [stderr] 1089 |     let reader: &mut Read = &mut (File::open(input_path).unwrap_or_else(|e| {
[INFO] [stderr]      |                      ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bin/varlink-rust-generator.rs:30:42
[INFO] [stderr]    |
[INFO] [stderr] 30 | fn main() -> std::result::Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[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/bin/varlink-rust-generator.rs:54:25
[INFO] [stderr]    |
[INFO] [stderr] 54 |     let mut reader: Box<Read> = match matches.free.len() {
[INFO] [stderr]    |                         ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bin/varlink-rust-generator.rs:67:22
[INFO] [stderr]    |
[INFO] [stderr] 67 |     let writer: &mut Write = &mut io::stdout();
[INFO] [stderr]    |                      ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bin/varlink-rust-generator.rs:30:42
[INFO] [stderr]    |
[INFO] [stderr] 30 | fn main() -> std::result::Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[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/bin/varlink-rust-generator.rs:54:25
[INFO] [stderr]    |
[INFO] [stderr] 54 |     let mut reader: Box<Read> = match matches.free.len() {
[INFO] [stderr]    |                         ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bin/varlink-rust-generator.rs:67:22
[INFO] [stderr]    |
[INFO] [stderr] 67 |     let writer: &mut Write = &mut io::stdout();
[INFO] [stderr]    |                      ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.54s
[INFO] running `"docker" "inspect" "4ca634782f76ded876e8b790959e7ef6b71fc43fbadd1d8eef4581359c07af69"`
[INFO] running `"docker" "rm" "-f" "4ca634782f76ded876e8b790959e7ef6b71fc43fbadd1d8eef4581359c07af69"`
[INFO] [stdout] 4ca634782f76ded876e8b790959e7ef6b71fc43fbadd1d8eef4581359c07af69