[INFO] fetching crate nccl 0.4.3...
[INFO] checking nccl-0.4.3 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate nccl 0.4.3 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate nccl 0.4.3 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate nccl 0.4.3
[INFO] finished tweaking crates.io crate nccl 0.4.3
[INFO] tweaked toml for crates.io crate nccl 0.4.3 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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] f2d956f676807d97b912264f6d2cd8672403daac6d9229b3a8c8e28d5d9c23b6
[INFO] running `"docker" "start" "-a" "f2d956f676807d97b912264f6d2cd8672403daac6d9229b3a8c8e28d5d9c23b6"`
[INFO] [stderr]     Checking nccl v0.4.3 (/opt/rustwide/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 1.15s
[INFO] running `"docker" "inspect" "f2d956f676807d97b912264f6d2cd8672403daac6d9229b3a8c8e28d5d9c23b6"`
[INFO] running `"docker" "rm" "-f" "f2d956f676807d97b912264f6d2cd8672403daac6d9229b3a8c8e28d5d9c23b6"`
[INFO] [stdout] f2d956f676807d97b912264f6d2cd8672403daac6d9229b3a8c8e28d5d9c23b6