[INFO] fetching crate traverse 0.0.12... [INFO] checking traverse-0.0.12 against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502 [INFO] extracting crate traverse 0.0.12 into /workspace/builds/worker-5/source [INFO] validating manifest of crates.io crate traverse 0.0.12 on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate traverse 0.0.12 [INFO] finished tweaking crates.io crate traverse 0.0.12 [INFO] tweaked toml for crates.io crate traverse 0.0.12 written to /workspace/builds/worker-5/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: dependency (num) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c757ddce2d4564f3190ac9aef2e2eb655a4d02da8a245c48fcb5658ba2b380f1 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "c757ddce2d4564f3190ac9aef2e2eb655a4d02da8a245c48fcb5658ba2b380f1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c757ddce2d4564f3190ac9aef2e2eb655a4d02da8a245c48fcb5658ba2b380f1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c757ddce2d4564f3190ac9aef2e2eb655a4d02da8a245c48fcb5658ba2b380f1", kill_on_drop: false }` [INFO] [stdout] c757ddce2d4564f3190ac9aef2e2eb655a4d02da8a245c48fcb5658ba2b380f1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 499540d1fd53f1f49e6f5d3bb0ff375431078b24b4ed7adf00af5a2d7444c9ee [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "499540d1fd53f1f49e6f5d3bb0ff375431078b24b4ed7adf00af5a2d7444c9ee", kill_on_drop: false }` [INFO] [stderr] warning: dependency (num) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking ppv-lite86 v0.2.9 [INFO] [stderr] Checking regex-syntax v0.6.18 [INFO] [stderr] Checking log v0.4.11 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling num-integer v0.1.43 [INFO] [stderr] Compiling num-bigint v0.3.0 [INFO] [stderr] Compiling num-rational v0.3.0 [INFO] [stderr] Compiling num-iter v0.1.41 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking aho-corasick v0.7.13 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking num-complex v0.3.0 [INFO] [stderr] Checking regex v1.3.9 [INFO] [stderr] Checking env_logger v0.7.1 [INFO] [stderr] Checking quickcheck v0.9.2 [INFO] [stderr] Checking num v0.3.0 [INFO] [stderr] Checking traverse v0.0.12 (/opt/rustwide/workdir) [INFO] [stdout] error[E0658]: use of unstable library feature 'array_map' [INFO] [stdout] --> src/impls/slice.rs:28:42 [INFO] [stdout] | [INFO] [stdout] 28 | let traversal: Vec = data.map(|&x| x).collect(); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #75243 for more information [INFO] [stdout] = help: add `#![feature(array_map)]` to the crate attributes to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/impls/slice.rs:28:47 [INFO] [stdout] | [INFO] [stdout] 28 | let traversal: Vec = data.map(|&x| x).collect(); [INFO] [stdout] | ^-- [INFO] [stdout] | || [INFO] [stdout] | |expected due to this [INFO] [stdout] | expected integer, found reference [INFO] [stdout] | help: did you mean `x`: `&{integer}` [INFO] [stdout] | [INFO] [stdout] = note: expected type `{integer}` [INFO] [stdout] found reference `&_` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the trait bound `std::vec::Vec: FromTraversal<&_>` is not satisfied [INFO] [stdout] --> src/impls/slice.rs:28:54 [INFO] [stdout] | [INFO] [stdout] 28 | let traversal: Vec = data.map(|&x| x).collect(); [INFO] [stdout] | ^^^^^^^ the trait `FromTraversal<&_>` is not implemented for `std::vec::Vec` [INFO] [stdout] | [INFO] [stdout] = help: the following implementations were found: [INFO] [stdout] as FromTraversal> [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable library feature 'array_map' [INFO] [stdout] --> src/impls/slice.rs:35:39 [INFO] [stdout] | [INFO] [stdout] 35 | let traversal: Vec<()> = data.map(|&x| x).collect(); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #75243 for more information [INFO] [stdout] = help: add `#![feature(array_map)]` to the crate attributes to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/impls/slice.rs:35:44 [INFO] [stdout] | [INFO] [stdout] 35 | let traversal: Vec<()> = data.map(|&x| x).collect(); [INFO] [stdout] | ^-- [INFO] [stdout] | || [INFO] [stdout] | |expected due to this [INFO] [stdout] | expected `()`, found reference [INFO] [stdout] | help: did you mean `x`: `&()` [INFO] [stdout] | [INFO] [stdout] = note: expected unit type `()` [INFO] [stdout] found reference `&_` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the trait bound `std::vec::Vec<()>: FromTraversal<&_>` is not satisfied [INFO] [stdout] --> src/impls/slice.rs:35:51 [INFO] [stdout] | [INFO] [stdout] 35 | let traversal: Vec<()> = data.map(|&x| x).collect(); [INFO] [stdout] | ^^^^^^^ the trait `FromTraversal<&_>` is not implemented for `std::vec::Vec<()>` [INFO] [stdout] | [INFO] [stdout] = help: the following implementations were found: [INFO] [stdout] as FromTraversal> [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 6 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0277, E0308, E0658. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stderr] error: could not compile `traverse`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `Command { std: "docker" "inspect" "499540d1fd53f1f49e6f5d3bb0ff375431078b24b4ed7adf00af5a2d7444c9ee", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "499540d1fd53f1f49e6f5d3bb0ff375431078b24b4ed7adf00af5a2d7444c9ee", kill_on_drop: false }` [INFO] [stdout] 499540d1fd53f1f49e6f5d3bb0ff375431078b24b4ed7adf00af5a2d7444c9ee