[INFO] cloning repository https://github.com/DadouBordeaux/rust_playground [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DadouBordeaux/rust_playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDadouBordeaux%2Frust_playground", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDadouBordeaux%2Frust_playground'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 35f942252b482daa06c8651295aa646818e77308 [INFO] testing DadouBordeaux/rust_playground against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDadouBordeaux%2Frust_playground" "/workspace/builds/worker-7/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/DadouBordeaux/rust_playground on toolchain 722e1797249a965b6335aebd65d777f917e498f1 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/DadouBordeaux/rust_playground [INFO] finished tweaking git repo https://github.com/DadouBordeaux/rust_playground [INFO] tweaked toml for git repo https://github.com/DadouBordeaux/rust_playground written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/DadouBordeaux/rust_playground already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 9bce75b8eef090a82959136a30ed042a6a2c1417e83310d1c2ab3845f201940f [INFO] running `Command { std: "docker" "start" "-a" "9bce75b8eef090a82959136a30ed042a6a2c1417e83310d1c2ab3845f201940f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9bce75b8eef090a82959136a30ed042a6a2c1417e83310d1c2ab3845f201940f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9bce75b8eef090a82959136a30ed042a6a2c1417e83310d1c2ab3845f201940f", kill_on_drop: false }` [INFO] [stdout] 9bce75b8eef090a82959136a30ed042a6a2c1417e83310d1c2ab3845f201940f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a3f9a5ebadafa69fa9229ae8c30ab4e0e4a1dc48f0d548404dcac10ecc62057a [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" "a3f9a5ebadafa69fa9229ae8c30ab4e0e4a1dc48f0d548404dcac10ecc62057a", kill_on_drop: false }` [INFO] [stderr] Compiling rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `read_to_string` [INFO] [stdout] --> src/main.rs:1:15 [INFO] [stdout] | [INFO] [stdout] 1 | use std::fs::{read_to_string, File}; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `file` [INFO] [stdout] --> src/main.rs:149:13 [INFO] [stdout] | [INFO] [stdout] 149 | let mut file = File::open(path); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_file` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `todo` [INFO] [stdout] --> src/main.rs:147:43 [INFO] [stdout] | [INFO] [stdout] 147 | fn update_todo_list(todo_list: &TodoList, todo: Todo) -> Result<(), std::io::Error> { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_todo` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:149:9 [INFO] [stdout] | [INFO] [stdout] 149 | let mut file = File::open(path); [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: associated function is never used: `add_todo` [INFO] [stdout] --> src/main.rs:88:12 [INFO] [stdout] | [INFO] [stdout] 88 | pub fn add_todo(&mut self, todo: Todo) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `description` [INFO] [stdout] --> src/main.rs:121:5 [INFO] [stdout] | [INFO] [stdout] 121 | description: String, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `update_todo_list` [INFO] [stdout] --> src/main.rs:147:4 [INFO] [stdout] | [INFO] [stdout] 147 | fn update_todo_list(todo_list: &TodoList, todo: Todo) -> Result<(), std::io::Error> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.13s [INFO] running `Command { std: "docker" "inspect" "a3f9a5ebadafa69fa9229ae8c30ab4e0e4a1dc48f0d548404dcac10ecc62057a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a3f9a5ebadafa69fa9229ae8c30ab4e0e4a1dc48f0d548404dcac10ecc62057a", kill_on_drop: false }` [INFO] [stdout] a3f9a5ebadafa69fa9229ae8c30ab4e0e4a1dc48f0d548404dcac10ecc62057a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0184595d4c19385f11ae9e1685c5da312040e4d365c43094c36dbf62859af9fa [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" "0184595d4c19385f11ae9e1685c5da312040e4d365c43094c36dbf62859af9fa", kill_on_drop: false }` [INFO] [stderr] Compiling rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `read_to_string` [INFO] [stdout] --> src/main.rs:1:15 [INFO] [stdout] | [INFO] [stdout] 1 | use std::fs::{read_to_string, File}; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `file` [INFO] [stdout] --> src/main.rs:149:13 [INFO] [stdout] | [INFO] [stdout] 149 | let mut file = File::open(path); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_file` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `todo` [INFO] [stdout] --> src/main.rs:147:43 [INFO] [stdout] | [INFO] [stdout] 147 | fn update_todo_list(todo_list: &TodoList, todo: Todo) -> Result<(), std::io::Error> { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_todo` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:149:9 [INFO] [stdout] | [INFO] [stdout] 149 | let mut file = File::open(path); [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: associated function is never used: `add_todo` [INFO] [stdout] --> src/main.rs:88:12 [INFO] [stdout] | [INFO] [stdout] 88 | pub fn add_todo(&mut self, todo: Todo) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `description` [INFO] [stdout] --> src/main.rs:121:5 [INFO] [stdout] | [INFO] [stdout] 121 | description: String, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `update_todo_list` [INFO] [stdout] --> src/main.rs:147:4 [INFO] [stdout] | [INFO] [stdout] 147 | fn update_todo_list(todo_list: &TodoList, todo: Todo) -> Result<(), std::io::Error> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.93s [INFO] running `Command { std: "docker" "inspect" "0184595d4c19385f11ae9e1685c5da312040e4d365c43094c36dbf62859af9fa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0184595d4c19385f11ae9e1685c5da312040e4d365c43094c36dbf62859af9fa", kill_on_drop: false }` [INFO] [stdout] 0184595d4c19385f11ae9e1685c5da312040e4d365c43094c36dbf62859af9fa [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] d6a1ae8411a81156ce9e34a19ea585fd172e38b8b5549bb062534816af6a04f3 [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" "d6a1ae8411a81156ce9e34a19ea585fd172e38b8b5549bb062534816af6a04f3", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `read_to_string` [INFO] [stderr] --> src/main.rs:1:15 [INFO] [stderr] | [INFO] [stderr] 1 | use std::fs::{read_to_string, File}; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `file` [INFO] [stderr] --> src/main.rs:149:13 [INFO] [stderr] | [INFO] [stderr] 149 | let mut file = File::open(path); [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_file` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `todo` [INFO] [stderr] --> src/main.rs:147:43 [INFO] [stderr] | [INFO] [stderr] 147 | fn update_todo_list(todo_list: &TodoList, todo: Todo) -> Result<(), std::io::Error> { [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_todo` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:149:9 [INFO] [stderr] | [INFO] [stderr] 149 | let mut file = File::open(path); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `add_todo` [INFO] [stderr] --> src/main.rs:88:12 [INFO] [stderr] | [INFO] [stderr] 88 | pub fn add_todo(&mut self, todo: Todo) { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never read: `description` [INFO] [stderr] --> src/main.rs:121:5 [INFO] [stderr] | [INFO] [stderr] 121 | description: String, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `update_todo_list` [INFO] [stderr] --> src/main.rs:147:4 [INFO] [stderr] | [INFO] [stderr] 147 | fn update_todo_list(todo_list: &TodoList, todo: Todo) -> Result<(), std::io::Error> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `rust` (bin "rust" test) generated 7 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/rust-4961faa5eb6faed1) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "d6a1ae8411a81156ce9e34a19ea585fd172e38b8b5549bb062534816af6a04f3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d6a1ae8411a81156ce9e34a19ea585fd172e38b8b5549bb062534816af6a04f3", kill_on_drop: false }` [INFO] [stdout] d6a1ae8411a81156ce9e34a19ea585fd172e38b8b5549bb062534816af6a04f3