[INFO] crate playbook 0.4.2 is already in cache
[INFO] checking playbook-0.4.2 against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] extracting crate playbook 0.4.2 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate playbook 0.4.2 on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate playbook 0.4.2
[INFO] finished tweaking crates.io crate playbook 0.4.2
[INFO] tweaked toml for crates.io crate playbook 0.4.2 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5797adfa6bfa0c5571dd27429e79d0775397eb4255b69ff82ccc1fe50b1eb5a4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "5797adfa6bfa0c5571dd27429e79d0775397eb4255b69ff82ccc1fe50b1eb5a4"`
[INFO] [stderr]    Compiling nix v0.12.1
[INFO] [stderr]    Compiling impersonate v0.0.3
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking rpds v0.5.0
[INFO] [stderr]     Checking fern v0.5.9
[INFO] [stderr]     Checking ymlctx v0.1.8
[INFO] [stderr]     Checking playbook v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::path::Path`
[INFO] [stderr]  --> src/lang/python.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::path::Path;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::result::Result`
[INFO] [stderr]  --> src/lang/python.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::result::Result;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Context`, `CtxObj`
[INFO] [stderr]  --> src/lang/python.rs:3:23
[INFO] [stderr]   |
[INFO] [stderr] 3 | use ymlctx::context::{Context, CtxObj};
[INFO] [stderr]   |                       ^^^^^^^  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `TaskErrorSource`, `TaskError`
[INFO] [stderr]  --> src/lang/python.rs:4:13
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::{TaskError, TaskErrorSource};
[INFO] [stderr]   |             ^^^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Write`
[INFO] [stderr]  --> src/lang/python.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::Write; // for flushing stdio
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path::Path`
[INFO] [stderr]  --> src/lang/python.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::path::Path;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::result::Result`
[INFO] [stderr]  --> src/lang/python.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::result::Result;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Context`, `CtxObj`
[INFO] [stderr]  --> src/lang/python.rs:3:23
[INFO] [stderr]   |
[INFO] [stderr] 3 | use ymlctx::context::{Context, CtxObj};
[INFO] [stderr]   |                       ^^^^^^^  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `TaskErrorSource`, `TaskError`
[INFO] [stderr]  --> src/lang/python.rs:4:13
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::{TaskError, TaskErrorSource};
[INFO] [stderr]   |             ^^^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Write`
[INFO] [stderr]  --> src/lang/python.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::Write; // for flushing stdio
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/builtins.rs:277:5
[INFO] [stderr]     |
[INFO] [stderr] 276 |     unimplemented!();
[INFO] [stderr]     |     ----------------- any code following this expression is unreachable
[INFO] [stderr] 277 |     let nproc = pool.len();
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]    --> src/builtins.rs:277:5
[INFO] [stderr]     |
[INFO] [stderr] 276 |     unimplemented!();
[INFO] [stderr]     |     ----------------- any code following this expression is unreachable
[INFO] [stderr] 277 |     let nproc = pool.len();
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right': superseded by `trim_end`
[INFO] [stderr]   --> src/systems/docker.rs:38:33
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let newline_len = id_stdout.trim_right().len();
[INFO] [stderr]    |                                 ^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right': superseded by `trim_end`
[INFO] [stderr]   --> src/systems/docker.rs:38:33
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let newline_len = id_stdout.trim_right().len();
[INFO] [stderr]    |                                 ^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `nproc`
[INFO] [stderr]    --> src/builtins.rs:277:9
[INFO] [stderr]     |
[INFO] [stderr] 277 |     let nproc = pool.len();
[INFO] [stderr]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_nproc`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `grid`
[INFO] [stderr]    --> src/builtins.rs:275:14
[INFO] [stderr]     |
[INFO] [stderr] 275 | fn fork_pool(grid: Vec<Context>, pool: &Vec<CtxObj>) -> TransientContext {
[INFO] [stderr]     |              ^^^^ help: if this is intentional, prefix it with an underscore: `_grid`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pool`
[INFO] [stderr]    --> src/builtins.rs:275:34
[INFO] [stderr]     |
[INFO] [stderr] 275 | fn fork_pool(grid: Vec<Context>, pool: &Vec<CtxObj>) -> TransientContext {
[INFO] [stderr]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_pool`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `nproc`
[INFO] [stderr]    --> src/builtins.rs:277:9
[INFO] [stderr]     |
[INFO] [stderr] 277 |     let nproc = pool.len();
[INFO] [stderr]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_nproc`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `grid`
[INFO] [stderr]    --> src/builtins.rs:275:14
[INFO] [stderr]     |
[INFO] [stderr] 275 | fn fork_pool(grid: Vec<Context>, pool: &Vec<CtxObj>) -> TransientContext {
[INFO] [stderr]     |              ^^^^ help: if this is intentional, prefix it with an underscore: `_grid`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pool`
[INFO] [stderr]    --> src/builtins.rs:275:34
[INFO] [stderr]     |
[INFO] [stderr] 275 | fn fork_pool(grid: Vec<Context>, pool: &Vec<CtxObj>) -> TransientContext {
[INFO] [stderr]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_pool`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/ci.rs:14:17
[INFO] [stderr]    |
[INFO] [stderr] 14 |             let mut metadata = std::fs::metadata(tmpdir.path().to_str().unwrap())
[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]     Finished dev [unoptimized + debuginfo] target(s) in 11.15s
[INFO] running `"docker" "inspect" "5797adfa6bfa0c5571dd27429e79d0775397eb4255b69ff82ccc1fe50b1eb5a4"`
[INFO] running `"docker" "rm" "-f" "5797adfa6bfa0c5571dd27429e79d0775397eb4255b69ff82ccc1fe50b1eb5a4"`
[INFO] [stdout] 5797adfa6bfa0c5571dd27429e79d0775397eb4255b69ff82ccc1fe50b1eb5a4
