[INFO] cloning repository https://github.com/fnlcon/rust_tour [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fnlcon/rust_tour" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffnlcon%2Frust_tour", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffnlcon%2Frust_tour'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 29adff458ed30eaf06be1993ff165500165c2ad4 [INFO] checking fnlcon/rust_tour against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffnlcon%2Frust_tour" "/workspace/builds/worker-13/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/fnlcon/rust_tour on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/fnlcon/rust_tour [INFO] finished tweaking git repo https://github.com/fnlcon/rust_tour [INFO] tweaked toml for git repo https://github.com/fnlcon/rust_tour written to /workspace/builds/worker-13/source/Cargo.toml [INFO] crate git repo https://github.com/fnlcon/rust_tour already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded openssl-sys v0.9.66 [INFO] [stderr] Downloaded csv-core v0.1.10 [INFO] [stderr] Downloaded ahash v0.7.4 [INFO] [stderr] Downloaded dirs-sys v0.3.6 [INFO] [stderr] Downloaded reqwest v0.11.4 [INFO] [stderr] Downloaded fast-float v0.2.0 [INFO] [stderr] Downloaded polars-arrow v0.15.1 [INFO] [stderr] Downloaded multiversion-macros v0.6.1 [INFO] [stderr] Downloaded redox_users v0.3.5 [INFO] [stderr] Downloaded dirs v3.0.2 [INFO] [stderr] Downloaded rust-argon2 v0.8.3 [INFO] [stderr] Downloaded term v0.5.2 [INFO] [stderr] Downloaded multiversion v0.6.1 [INFO] [stderr] Downloaded blake2b_simd v0.5.11 [INFO] [stderr] Downloaded ipnet v2.3.1 [INFO] [stderr] Downloaded unsafe_unwrap v0.1.0 [INFO] [stderr] Downloaded polars-core v0.15.1 [INFO] [stderr] Downloaded polars-lazy v0.15.1 [INFO] [stderr] Downloaded lexical v5.2.2 [INFO] [stderr] Downloaded num-bigint v0.4.1 [INFO] [stderr] Downloaded polars v0.15.1 [INFO] [stderr] Downloaded bstr v0.2.16 [INFO] [stderr] Downloaded tokio v1.10.1 [INFO] [stderr] Downloaded simdutf8 v0.1.3 [INFO] [stderr] Downloaded webpki-roots v0.21.1 [INFO] [stderr] Downloaded arrow v5.3.0 [INFO] [stderr] Downloaded csv v1.1.6 [INFO] [stderr] Downloaded polars-io v0.15.1 [INFO] [stderr] Downloaded openssl v0.10.36 [INFO] [stderr] Downloaded native-tls v0.2.8 [INFO] [stderr] Downloaded thiserror-impl v1.0.28 [INFO] [stderr] Downloaded security-framework v2.4.2 [INFO] [stderr] Downloaded thiserror v1.0.28 [INFO] [stderr] Downloaded security-framework-sys v2.4.2 [INFO] [stderr] Downloaded wasm-bindgen-futures v0.4.26 [INFO] [stderr] Downloaded encode_unicode v0.3.6 [INFO] [stderr] Downloaded dirs v1.0.5 [INFO] [stderr] Downloaded sqlparser v0.10.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] aad06f0c8d19e60e0c57d34f9cf000ed4f73b401c7367059a99c48043afc31f7 [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" "aad06f0c8d19e60e0c57d34f9cf000ed4f73b401c7367059a99c48043afc31f7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "aad06f0c8d19e60e0c57d34f9cf000ed4f73b401c7367059a99c48043afc31f7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "aad06f0c8d19e60e0c57d34f9cf000ed4f73b401c7367059a99c48043afc31f7", kill_on_drop: false }` [INFO] [stdout] aad06f0c8d19e60e0c57d34f9cf000ed4f73b401c7367059a99c48043afc31f7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1409d62df8791571a439cf236726233830a75d8434262be272fe5fd925f91e18 [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" "1409d62df8791571a439cf236726233830a75d8434262be272fe5fd925f91e18", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling libc v0.2.100 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling crossbeam-utils v0.8.5 [INFO] [stderr] Compiling crossbeam-epoch v0.9.5 [INFO] [stderr] Compiling cc v1.0.69 [INFO] [stderr] Compiling version_check v0.9.3 [INFO] [stderr] Checking itoa v0.4.8 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Checking pin-project-lite v0.2.7 [INFO] [stderr] Compiling parking_lot_core v0.8.5 [INFO] [stderr] Checking smallvec v1.6.1 [INFO] [stderr] Checking bytes v1.1.0 [INFO] [stderr] Compiling futures-core v0.3.17 [INFO] [stderr] Compiling pkg-config v0.3.19 [INFO] [stderr] Checking ppv-lite86 v0.2.10 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Compiling futures-task v0.3.17 [INFO] [stderr] Compiling proc-macro-nested v0.1.7 [INFO] [stderr] Checking fnv v1.0.7 [INFO] [stderr] Compiling serde_json v1.0.67 [INFO] [stderr] Compiling lexical-core v0.7.6 [INFO] [stderr] Checking pin-utils v0.1.0 [INFO] [stderr] Checking arrayvec v0.5.2 [INFO] [stderr] Compiling futures-channel v0.3.17 [INFO] [stderr] Checking futures-sink v0.3.17 [INFO] [stderr] Compiling serde_derive v1.0.130 [INFO] [stderr] Checking slab v0.4.4 [INFO] [stderr] Compiling httparse v1.5.1 [INFO] [stderr] Checking try-lock v0.2.3 [INFO] [stderr] Checking matches v0.1.9 [INFO] [stderr] Checking tinyvec_macros v0.1.0 [INFO] [stderr] Checking percent-encoding v2.1.0 [INFO] [stderr] Checking openssl-probe v0.1.4 [INFO] [stderr] Compiling anyhow v1.0.43 [INFO] [stderr] Checking base64 v0.13.0 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Checking httpdate v1.0.1 [INFO] [stderr] Checking tower-service v0.3.1 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Checking encode_unicode v0.3.6 [INFO] [stderr] Checking unicode-bidi v0.3.6 [INFO] [stderr] Checking unsafe_unwrap v0.1.0 [INFO] [stderr] Checking simdutf8 v0.1.3 [INFO] [stderr] Checking fast-float v0.2.0 [INFO] [stderr] Compiling async-trait v0.1.51 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Checking lock_api v0.4.5 [INFO] [stderr] Checking itertools v0.10.1 [INFO] [stderr] Checking instant v0.1.10 [INFO] [stderr] Checking tracing-core v0.1.19 [INFO] [stderr] Checking sharded-slab v0.1.3 [INFO] [stderr] Checking http v0.2.4 [INFO] [stderr] Compiling ahash v0.7.4 [INFO] [stderr] Compiling memoffset v0.6.4 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Compiling indexmap v1.7.0 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling tokio v1.10.1 [INFO] [stderr] Compiling num-bigint v0.4.1 [INFO] [stderr] Compiling futures-macro v0.3.17 [INFO] [stderr] Compiling futures-util v0.3.17 [INFO] [stderr] Compiling num-rational v0.4.0 [INFO] [stderr] Compiling num-iter v0.1.42 [INFO] [stderr] Checking tinyvec v1.3.1 [INFO] [stderr] Checking form_urlencoded v1.0.1 [INFO] [stderr] Compiling openssl-sys v0.9.66 [INFO] [stderr] Compiling ring v0.16.20 [INFO] [stderr] Checking encoding_rs v0.8.28 [INFO] [stderr] Checking want v0.3.0 [INFO] [stderr] Checking tracing-log v0.1.2 [INFO] [stderr] Checking sqlparser v0.10.0 [INFO] [stderr] Checking regex-automata v0.1.10 [INFO] [stderr] Checking crossbeam-channel v0.5.1 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Checking getrandom v0.2.3 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking mio v0.7.13 [INFO] [stderr] Checking signal-hook-registry v1.4.0 [INFO] [stderr] Checking time v0.1.43 [INFO] [stderr] Checking socket2 v0.4.1 [INFO] [stderr] Checking dirs v1.0.5 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking dirs-sys v0.3.6 [INFO] [stderr] Checking memmap2 v0.2.3 [INFO] [stderr] Checking unicode-normalization v0.1.19 [INFO] [stderr] Compiling syn v1.0.75 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking parking_lot v0.11.2 [INFO] [stderr] Checking http-body v0.4.3 [INFO] [stderr] Checking term v0.5.2 [INFO] [stderr] Checking dirs v3.0.2 [INFO] [stderr] Compiling openssl v0.10.36 [INFO] [stderr] Compiling native-tls v0.2.8 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Checking matchers v0.0.1 [INFO] [stderr] Checking crossbeam-deque v0.8.1 [INFO] [stderr] Checking num-complex v0.4.0 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking lexical v5.2.2 [INFO] [stderr] Checking rayon-core v1.9.1 [INFO] [stderr] Checking rand v0.8.4 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking idna v0.2.3 [INFO] [stderr] Checking url v2.2.2 [INFO] [stdout] error[E0658]: use of unstable library feature 'int_roundings' [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/num-bigint-0.4.1/src/biguint/convert.rs:70:10 [INFO] [stdout] | [INFO] [stdout] 70 | .div_ceil(&big_digit::BITS.into()) [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #88581 for more information [INFO] [stdout] = help: add `#![feature(int_roundings)]` to the crate attributes to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/num-bigint-0.4.1/src/biguint/convert.rs:70:19 [INFO] [stdout] | [INFO] [stdout] 70 | .div_ceil(&big_digit::BITS.into()) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ expected `u64`, found reference [INFO] [stdout] | [INFO] [stdout] = note: expected type `u64` [INFO] [stdout] found reference `&_` [INFO] [stdout] help: consider removing the borrow [INFO] [stdout] | [INFO] [stdout] 70 - .div_ceil(&big_digit::BITS.into()) [INFO] [stdout] 70 + .div_ceil(big_digit::BITS.into()) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable library feature 'int_roundings' [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/num-bigint-0.4.1/src/biguint/convert.rs:585:10 [INFO] [stdout] | [INFO] [stdout] 585 | .div_ceil(&u64::from(bits)) [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #88581 for more information [INFO] [stdout] = help: add `#![feature(int_roundings)]` to the crate attributes to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/num-bigint-0.4.1/src/biguint/convert.rs:585:19 [INFO] [stdout] | [INFO] [stdout] 585 | .div_ceil(&u64::from(bits)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^ expected `u64`, found `&u64` [INFO] [stdout] | [INFO] [stdout] help: consider removing the borrow [INFO] [stdout] | [INFO] [stdout] 585 - .div_ceil(&u64::from(bits)) [INFO] [stdout] 585 + .div_ceil(u64::from(bits)) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable library feature 'int_roundings' [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/num-bigint-0.4.1/src/biguint/convert.rs:613:10 [INFO] [stdout] | [INFO] [stdout] 613 | .div_ceil(&u64::from(bits)) [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #88581 for more information [INFO] [stdout] = help: add `#![feature(int_roundings)]` to the crate attributes to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/num-bigint-0.4.1/src/biguint/convert.rs:613:19 [INFO] [stdout] | [INFO] [stdout] 613 | .div_ceil(&u64::from(bits)) [INFO] [stdout] | ^^^^^^^^^^^^^^^^ expected `u64`, found `&u64` [INFO] [stdout] | [INFO] [stdout] help: consider removing the borrow [INFO] [stdout] | [INFO] [stdout] 613 - .div_ceil(&u64::from(bits)) [INFO] [stdout] 613 + .div_ceil(u64::from(bits)) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable library feature 'int_roundings' [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/num-bigint-0.4.1/src/biguint.rs:398:45 [INFO] [stdout] | [INFO] [stdout] 398 | let root_scale = extra_bits.div_ceil(&n64); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #88581 for more information [INFO] [stdout] = help: add `#![feature(int_roundings)]` to the crate attributes to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/num-bigint-0.4.1/src/biguint.rs:398:54 [INFO] [stdout] | [INFO] [stdout] 398 | let root_scale = extra_bits.div_ceil(&n64); [INFO] [stdout] | ^^^^ expected `u64`, found `&u64` [INFO] [stdout] | [INFO] [stdout] help: consider removing the borrow [INFO] [stdout] | [INFO] [stdout] 398 - let root_scale = extra_bits.div_ceil(&n64); [INFO] [stdout] 398 + let root_scale = extra_bits.div_ceil(n64); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking tree_case1 v0.1.0 (/opt/rustwide/workdir/tree_case1) [INFO] [stdout] error: aborting due to 8 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0308, E0658. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0308`. [INFO] [stdout] [INFO] [stderr] error: could not compile `num-bigint` due to 9 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error[E0434]: can't capture dynamic environment in a fn item [INFO] [stdout] --> tree_case1/src/lib.rs:94:34 [INFO] [stdout] | [INFO] [stdout] 94 | update(node, path) [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: use the `|| { ... }` closure form instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find value `node_name` in this scope [INFO] [stdout] --> tree_case1/src/lib.rs:93:36 [INFO] [stdout] | [INFO] [stdout] 93 | if node.name() == &node_name[..] { [INFO] [stdout] | ^^^^^^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rand::thread_rng` [INFO] [stdout] --> tree_case1/src/lib.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use rand::thread_rng; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0434]: can't capture dynamic environment in a fn item [INFO] [stdout] --> tree_case1/src/lib.rs:94:34 [INFO] [stdout] | [INFO] [stdout] 94 | update(node, path) [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: use the `|| { ... }` closure form instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find value `node_name` in this scope [INFO] [stdout] --> tree_case1/src/lib.rs:93:36 [INFO] [stdout] | [INFO] [stdout] 93 | if node.name() == &node_name[..] { [INFO] [stdout] | ^^^^^^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rand::thread_rng` [INFO] [stdout] --> tree_case1/src/lib.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use rand::thread_rng; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Rng`, `thread_rng` [INFO] [stdout] --> tree_case1/src/lib.rs:143:16 [INFO] [stdout] | [INFO] [stdout] 143 | use rand::{thread_rng, Rng}; [INFO] [stdout] | ^^^^^^^^^^ ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `BorrowMut`, `Borrow` [INFO] [stdout] --> tree_case1/src/lib.rs:144:23 [INFO] [stdout] | [INFO] [stdout] 144 | use std::borrow::{Borrow, BorrowMut}; [INFO] [stdout] | ^^^^^^ ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::LinkedList` [INFO] [stdout] --> tree_case1/src/lib.rs:145:9 [INFO] [stdout] | [INFO] [stdout] 145 | use std::collections::LinkedList; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fs::File` [INFO] [stdout] --> tree_case1/src/lib.rs:146:9 [INFO] [stdout] | [INFO] [stdout] 146 | use std::fs::File; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors; 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0425, E0434. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0425`. [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0425, E0434. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0425`. [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "1409d62df8791571a439cf236726233830a75d8434262be272fe5fd925f91e18", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1409d62df8791571a439cf236726233830a75d8434262be272fe5fd925f91e18", kill_on_drop: false }` [INFO] [stdout] 1409d62df8791571a439cf236726233830a75d8434262be272fe5fd925f91e18