[INFO] cloning repository https://github.com/bobgodwinx/try-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bobgodwinx/try-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbobgodwinx%2Ftry-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbobgodwinx%2Ftry-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 092c23de51169de1fd7171e643493d8f0f87b2d3 [INFO] testing bobgodwinx/try-rust against master#b03b3a7ec92682be2917540b679478d41c95a30c for pr-137122-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbobgodwinx%2Ftry-rust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/bobgodwinx/try-rust [INFO] finished tweaking git repo https://github.com/bobgodwinx/try-rust [INFO] tweaked toml for git repo https://github.com/bobgodwinx/try-rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/bobgodwinx/try-rust on toolchain b03b3a7ec92682be2917540b679478d41c95a30c [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b03b3a7ec92682be2917540b679478d41c95a30c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/bobgodwinx/try-rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b03b3a7ec92682be2917540b679478d41c95a30c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+b03b3a7ec92682be2917540b679478d41c95a30c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 195745b3788c0b89417df42a37b878d507e022728b5d75fb0a91bd7a13d52586 [INFO] running `Command { std: "docker" "start" "-a" "195745b3788c0b89417df42a37b878d507e022728b5d75fb0a91bd7a13d52586", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "195745b3788c0b89417df42a37b878d507e022728b5d75fb0a91bd7a13d52586", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "195745b3788c0b89417df42a37b878d507e022728b5d75fb0a91bd7a13d52586", kill_on_drop: false }` [INFO] [stdout] 195745b3788c0b89417df42a37b878d507e022728b5d75fb0a91bd7a13d52586 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+b03b3a7ec92682be2917540b679478d41c95a30c" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1e7e8a4a14f3e52b1fade0e4e3dfd1d4b4405dbeca15a2b9dfe1d7048bff89d2 [INFO] running `Command { std: "docker" "start" "-a" "1e7e8a4a14f3e52b1fade0e4e3dfd1d4b4405dbeca15a2b9dfe1d7048bff89d2", kill_on_drop: false }` [INFO] [stderr] Compiling try-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0583]: file not found for module `async_await` [INFO] [stdout] --> src/main.rs:25:1 [INFO] [stdout] | [INFO] [stdout] 25 | mod async_await; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: to create the module `async_await`, create file "src/async_await.rs" or "src/async_await/mod.rs" [INFO] [stdout] = note: if there is a `mod async_await` elsewhere in the crate already, import it with `use crate::...` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::print` [INFO] [stdout] --> src/print.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use crate::print; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::primitive` [INFO] [stdout] --> src/types.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | use std::primitive; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `core::num` [INFO] [stdout] --> src/arrays.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use core::num; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `core::num` [INFO] [stdout] --> src/vectors.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use core::num; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `DerefMut`, `Deref`, and `clone` [INFO] [stdout] --> src/ownership.rs:1:17 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{ops::{DerefMut, Deref}, clone}; [INFO] [stdout] | ^^^^^^^^ ^^^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/strings.rs:35:9 [INFO] [stdout] | [INFO] [stdout] 35 | let mut phrase = String::from("Hello there from London"); [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/arrays.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | let mut num_arr = [1, 2, 3, 9]; [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/ownership.rs:108:9 [INFO] [stdout] | [INFO] [stdout] 108 | let mut var_b = &var_a; [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/ownership.rs:114:9 [INFO] [stdout] | [INFO] [stdout] 114 | let mut var_c = String::from("Owned by var_c"); [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/ownership.rs:115:9 [INFO] [stdout] | [INFO] [stdout] 115 | let mut var_d = &var_c; [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/ownership.rs:125:9 [INFO] [stdout] | [INFO] [stdout] 125 | let mut var_h = &var_g; [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/ownership.rs:126:9 [INFO] [stdout] | [INFO] [stdout] 126 | let mut var_k = &var_g; [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/ownership.rs:137:24 [INFO] [stdout] | [INFO] [stdout] 137 | fn heap_do_some_thing(mut param: &Box) { [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0583`. [INFO] [stdout] [INFO] [stderr] error: could not compile `try-rust` (bin "try-rust") due to 1 previous error; 13 warnings emitted [INFO] running `Command { std: "docker" "inspect" "1e7e8a4a14f3e52b1fade0e4e3dfd1d4b4405dbeca15a2b9dfe1d7048bff89d2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1e7e8a4a14f3e52b1fade0e4e3dfd1d4b4405dbeca15a2b9dfe1d7048bff89d2", kill_on_drop: false }` [INFO] [stdout] 1e7e8a4a14f3e52b1fade0e4e3dfd1d4b4405dbeca15a2b9dfe1d7048bff89d2