[INFO] cloning repository https://github.com/delosrogers/huffman-tree [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/delosrogers/huffman-tree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdelosrogers%2Fhuffman-tree", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdelosrogers%2Fhuffman-tree'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 386b01f159ea49d66b58eb361c474fa3420f98ae [INFO] checking delosrogers/huffman-tree against master#f5f33ec0e0455eefa72fc5567eb1280a4d5ee206 for pr-83312 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdelosrogers%2Fhuffman-tree" "/workspace/builds/worker-4/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/delosrogers/huffman-tree on toolchain f5f33ec0e0455eefa72fc5567eb1280a4d5ee206 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/delosrogers/huffman-tree [INFO] finished tweaking git repo https://github.com/delosrogers/huffman-tree [INFO] tweaked toml for git repo https://github.com/delosrogers/huffman-tree written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/delosrogers/huffman-tree already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] da41d709f0c87ebd1ffa585203df7034513696477d3ae2b523e42db8d67f5a59 [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" "da41d709f0c87ebd1ffa585203df7034513696477d3ae2b523e42db8d67f5a59", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "da41d709f0c87ebd1ffa585203df7034513696477d3ae2b523e42db8d67f5a59", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "da41d709f0c87ebd1ffa585203df7034513696477d3ae2b523e42db8d67f5a59", kill_on_drop: false }` [INFO] [stdout] da41d709f0c87ebd1ffa585203df7034513696477d3ae2b523e42db8d67f5a59 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6a1e8ef850c30dc24f17e2632e1625c79b9ba12351928d53e8a918fa247c9325 [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" "6a1e8ef850c30dc24f17e2632e1625c79b9ba12351928d53e8a918fa247c9325", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling libc v0.2.88 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling syn v1.0.64 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling serde v1.0.124 [INFO] [stderr] Checking gimli v0.23.0 [INFO] [stderr] Checking adler v1.0.2 [INFO] [stderr] Checking object v0.23.0 [INFO] [stderr] Checking rustc-demangle v0.1.18 [INFO] [stderr] Checking thousands v0.2.0 [INFO] [stderr] Checking rustc-hash v1.1.0 [INFO] [stderr] Checking partial_application v0.2.1 [INFO] [stderr] Compiling crossbeam-utils v0.8.3 [INFO] [stderr] Compiling memoffset v0.6.1 [INFO] [stderr] Compiling miniz_oxide v0.4.4 [INFO] [stderr] Compiling rayon v1.5.0 [INFO] [stderr] Checking getrandom v0.2.2 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking rand_core v0.6.2 [INFO] [stderr] Checking crossbeam-epoch v0.9.3 [INFO] [stderr] Checking crossbeam-channel v0.5.0 [INFO] [stderr] Checking rand_chacha v0.3.0 [INFO] [stderr] Checking crossbeam-deque v0.8.0 [INFO] [stderr] Checking rand v0.8.3 [INFO] [stderr] Checking rayon-core v1.9.0 [INFO] [stderr] Checking addr2line v0.14.1 [INFO] [stderr] Checking backtrace v0.3.56 [INFO] [stderr] Compiling serde_derive v1.0.124 [INFO] [stderr] Checking serde_json v1.0.64 [INFO] [stderr] Checking dhat v0.2.2 [INFO] [stderr] Checking mzip v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `rayon::prelude::*` [INFO] [stdout] --> src/decode.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use rayon::prelude::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::time::Instant` [INFO] [stdout] --> src/decode.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::time::Instant; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Arc`, `RwLock` [INFO] [stdout] --> src/encode.rs:4:17 [INFO] [stdout] | [INFO] [stdout] 4 | use std::sync::{Arc, RwLock}; [INFO] [stdout] | ^^^ ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `ProdHuffman` [INFO] [stdout] --> src/main.rs:9:58 [INFO] [stdout] | [INFO] [stdout] 9 | use crate::types::{into_prod, Arena, Huffman, ProdArena, ProdHuffman}; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `DhatAlloc`, `Dhat` [INFO] [stdout] --> src/main.rs:10:12 [INFO] [stdout] | [INFO] [stdout] 10 | use dhat::{Dhat, DhatAlloc}; [INFO] [stdout] | ^^^^ ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0422]: cannot find struct, variant or union type `Huffman` in this scope [INFO] [stdout] --> src/encode.rs:94:9 [INFO] [stdout] | [INFO] [stdout] 94 | Huffman { [INFO] [stdout] | ^^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing this struct [INFO] [stdout] | [INFO] [stdout] 1 | use crate::Huffman; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0422]: cannot find struct, variant or union type `Huffman` in this scope [INFO] [stdout] --> src/encode.rs:100:9 [INFO] [stdout] | [INFO] [stdout] 100 | Huffman { [INFO] [stdout] | ^^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing this struct [INFO] [stdout] | [INFO] [stdout] 1 | use crate::Huffman; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0422]: cannot find struct, variant or union type `Huffman` in this scope [INFO] [stdout] --> src/encode.rs:106:9 [INFO] [stdout] | [INFO] [stdout] 106 | Huffman { [INFO] [stdout] | ^^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing this struct [INFO] [stdout] | [INFO] [stdout] 1 | use crate::Huffman; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0422]: cannot find struct, variant or union type `Huffman` in this scope [INFO] [stdout] --> src/encode.rs:112:9 [INFO] [stdout] | [INFO] [stdout] 112 | Huffman { [INFO] [stdout] | ^^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing this struct [INFO] [stdout] | [INFO] [stdout] 1 | use crate::Huffman; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0422]: cannot find struct, variant or union type `Huffman` in this scope [INFO] [stdout] --> src/encode.rs:118:9 [INFO] [stdout] | [INFO] [stdout] 118 | Huffman { [INFO] [stdout] | ^^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing this struct [INFO] [stdout] | [INFO] [stdout] 1 | use crate::Huffman; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0422]: cannot find struct, variant or union type `Huffman` in this scope [INFO] [stdout] --> src/encode.rs:124:9 [INFO] [stdout] | [INFO] [stdout] 124 | Huffman { [INFO] [stdout] | ^^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing this struct [INFO] [stdout] | [INFO] [stdout] 1 | use crate::Huffman; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0422]: cannot find struct, variant or union type `Huffman` in this scope [INFO] [stdout] --> src/encode.rs:130:9 [INFO] [stdout] | [INFO] [stdout] 130 | Huffman { [INFO] [stdout] | ^^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing this struct [INFO] [stdout] | [INFO] [stdout] 1 | use crate::Huffman; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rayon::prelude::*` [INFO] [stdout] --> src/decode.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use rayon::prelude::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::time::Instant` [INFO] [stdout] --> src/decode.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::time::Instant; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Arc`, `RwLock` [INFO] [stdout] --> src/encode.rs:4:17 [INFO] [stdout] | [INFO] [stdout] 4 | use std::sync::{Arc, RwLock}; [INFO] [stdout] | ^^^ ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `ProdHuffman` [INFO] [stdout] --> src/main.rs:9:58 [INFO] [stdout] | [INFO] [stdout] 9 | use crate::types::{into_prod, Arena, Huffman, ProdArena, ProdHuffman}; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `DhatAlloc`, `Dhat` [INFO] [stdout] --> src/main.rs:10:12 [INFO] [stdout] | [INFO] [stdout] 10 | use dhat::{Dhat, DhatAlloc}; [INFO] [stdout] | ^^^^ ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:42:9 [INFO] [stdout] | [INFO] [stdout] 42 | let mut args: Vec = env::args().collect(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:43:9 [INFO] [stdout] | [INFO] [stdout] 43 | let mut file_name = &args[1]; [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:49:9 [INFO] [stdout] | [INFO] [stdout] 49 | let mut start_state = make_start_count_huffman_with_hash_map(&input); [INFO] [stdout] | ----^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:53:9 [INFO] [stdout] | [INFO] [stdout] 53 | let mut prod_arena = into_prod(&arena); [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 7 previous errors; 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0422`. [INFO] [stdout] [INFO] [stderr] error: could not compile `mzip` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: cannot borrow `letters_map` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/tree.rs:12:28 [INFO] [stdout] | [INFO] [stdout] 11 | match letters_map.get(&i) { [INFO] [stdout] | ----------- immutable borrow occurs here [INFO] [stdout] 12 | Some(count) => letters_map.insert(i, *count + 1), [INFO] [stdout] | ^^^^^^^^^^^ ------ immutable borrow later used here [INFO] [stdout] | | [INFO] [stdout] | mutable borrow occurs here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stdout] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stdout] = note: for more information, see issue #59159 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:68:5 [INFO] [stdout] | [INFO] [stdout] 68 | / std::fs::write( [INFO] [stdout] 69 | | &tree_fname, [INFO] [stdout] 70 | | &serde_json::to_string(&prod_arena) [INFO] [stdout] 71 | | .expect("serialization error") [INFO] [stdout] 72 | | .as_str(), [INFO] [stdout] 73 | | ); [INFO] [stdout] | |______^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "6a1e8ef850c30dc24f17e2632e1625c79b9ba12351928d53e8a918fa247c9325", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6a1e8ef850c30dc24f17e2632e1625c79b9ba12351928d53e8a918fa247c9325", kill_on_drop: false }` [INFO] [stdout] 6a1e8ef850c30dc24f17e2632e1625c79b9ba12351928d53e8a918fa247c9325