[INFO] crate nccl 0.4.3 is already in cache
[INFO] extracting crate nccl 0.4.3 into work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/nccl/0.4.3
[INFO] extracting crate nccl 0.4.3 into work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/nccl/0.4.3
[INFO] validating manifest of nccl-0.4.3 on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of nccl-0.4.3 on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing nccl-0.4.3
[INFO] finished frobbing nccl-0.4.3
[INFO] frobbed toml for nccl-0.4.3 written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/nccl/0.4.3/Cargo.toml
[INFO] started frobbing nccl-0.4.3
[INFO] finished frobbing nccl-0.4.3
[INFO] frobbed toml for nccl-0.4.3 written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/nccl/0.4.3/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking nccl-0.4.3 against try#d3301713b54af69ca9de941a8c6b0d8287dbd6df for pr-61874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-5/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/nccl/0.4.3:/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" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f4e80ae4fcb9682009b2178e2a1bf8da779e91a017b6d43f435b3bf8a1fe3f0a
[INFO] running `"docker" "start" "-a" "f4e80ae4fcb9682009b2178e2a1bf8da779e91a017b6d43f435b3bf8a1fe3f0a"`
[INFO] [stderr]     Checking nccl v0.4.3 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/pair.rs:130:65
[INFO] [stderr]     |
[INFO] [stderr] 130 |     pub fn get<T>(&mut self, value: T) -> Result<&mut Pair, Box<Error>> where Value: From<T> {
[INFO] [stderr]     |                                                                 ^^^^^ help: use `dyn`: `dyn 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/pair.rs:154:61
[INFO] [stderr]     |
[INFO] [stderr] 154 |     pub fn get_ref<T>(&self, value: T) -> Result<&Pair, Box<Error>> where Value: From<T> {
[INFO] [stderr]     |                                                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/pair.rs:204:48
[INFO] [stderr]     |
[INFO] [stderr] 204 |     pub fn value_as<T>(&self) -> Result<T, Box<Error>> where Value: TryInto<T> {
[INFO] [stderr]     |                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/pair.rs:232:52
[INFO] [stderr]     |
[INFO] [stderr] 232 |     pub fn keys_as<T>(&self) -> Result<Vec<T>, Box<Error>> where Value: TryInto<T> {
[INFO] [stderr]     |                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:44:52
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub fn parse(mut self) -> Result<Pair, Vec<Box<Error>>> {
[INFO] [stderr]    |                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:45:33
[INFO] [stderr]    |
[INFO] [stderr] 45 |         let mut errors: Vec<Box<Error>> = vec![];
[INFO] [stderr]    |                                 ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/scanner.rs:35:65
[INFO] [stderr]    |
[INFO] [stderr] 35 |     pub fn scan_tokens(&mut self) -> Result<Vec<Token>, Vec<Box<Error>>> {
[INFO] [stderr]    |                                                                 ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/scanner.rs:36:30
[INFO] [stderr]    |
[INFO] [stderr] 36 |         let mut err: Vec<Box<Error>> = vec![];
[INFO] [stderr]    |                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:42:59
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub fn parse_file(filename: &str) -> Result<Pair, Vec<Box<Error>>> {
[INFO] [stderr]    |                                                           ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:63:76
[INFO] [stderr]    |
[INFO] [stderr] 63 | pub fn parse_file_with(filename: &str, pair: Pair) -> Result<Pair, Vec<Box<Error>>> {
[INFO] [stderr]    |                                                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:81:57
[INFO] [stderr]    |
[INFO] [stderr] 81 | pub fn parse_string(data: &str) -> Result<Pair, Vec<Box<Error>>> {
[INFO] [stderr]    |                                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/pair.rs:130:65
[INFO] [stderr]     |
[INFO] [stderr] 130 |     pub fn get<T>(&mut self, value: T) -> Result<&mut Pair, Box<Error>> where Value: From<T> {
[INFO] [stderr]     |                                                                 ^^^^^ help: use `dyn`: `dyn 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/pair.rs:154:61
[INFO] [stderr]     |
[INFO] [stderr] 154 |     pub fn get_ref<T>(&self, value: T) -> Result<&Pair, Box<Error>> where Value: From<T> {
[INFO] [stderr]     |                                                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/pair.rs:204:48
[INFO] [stderr]     |
[INFO] [stderr] 204 |     pub fn value_as<T>(&self) -> Result<T, Box<Error>> where Value: TryInto<T> {
[INFO] [stderr]     |                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/pair.rs:232:52
[INFO] [stderr]     |
[INFO] [stderr] 232 |     pub fn keys_as<T>(&self) -> Result<Vec<T>, Box<Error>> where Value: TryInto<T> {
[INFO] [stderr]     |                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:44:52
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub fn parse(mut self) -> Result<Pair, Vec<Box<Error>>> {
[INFO] [stderr]    |                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/parser.rs:45:33
[INFO] [stderr]    |
[INFO] [stderr] 45 |         let mut errors: Vec<Box<Error>> = vec![];
[INFO] [stderr]    |                                 ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/scanner.rs:35:65
[INFO] [stderr]    |
[INFO] [stderr] 35 |     pub fn scan_tokens(&mut self) -> Result<Vec<Token>, Vec<Box<Error>>> {
[INFO] [stderr]    |                                                                 ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/scanner.rs:36:30
[INFO] [stderr]    |
[INFO] [stderr] 36 |         let mut err: Vec<Box<Error>> = vec![];
[INFO] [stderr]    |                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:42:59
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub fn parse_file(filename: &str) -> Result<Pair, Vec<Box<Error>>> {
[INFO] [stderr]    |                                                           ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:63:76
[INFO] [stderr]    |
[INFO] [stderr] 63 | pub fn parse_file_with(filename: &str, pair: Pair) -> Result<Pair, Vec<Box<Error>>> {
[INFO] [stderr]    |                                                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:81:57
[INFO] [stderr]    |
[INFO] [stderr] 81 | pub fn parse_string(data: &str) -> Result<Pair, Vec<Box<Error>>> {
[INFO] [stderr]    |                                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> tests/nccl.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `"docker" "inspect" "f4e80ae4fcb9682009b2178e2a1bf8da779e91a017b6d43f435b3bf8a1fe3f0a"`
[INFO] running `"docker" "rm" "-f" "f4e80ae4fcb9682009b2178e2a1bf8da779e91a017b6d43f435b3bf8a1fe3f0a"`
[INFO] [stdout] f4e80ae4fcb9682009b2178e2a1bf8da779e91a017b6d43f435b3bf8a1fe3f0a