[INFO] crate playbook 0.4.1 is already in cache
[INFO] extracting crate playbook 0.4.1 into work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/reg/playbook/0.4.1
[INFO] extracting crate playbook 0.4.1 into work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/reg/playbook/0.4.1
[INFO] validating manifest of playbook-0.4.1 on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of playbook-0.4.1 on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing playbook-0.4.1
[INFO] finished frobbing playbook-0.4.1
[INFO] frobbed toml for playbook-0.4.1 written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/reg/playbook/0.4.1/Cargo.toml
[INFO] started frobbing playbook-0.4.1
[INFO] finished frobbing playbook-0.4.1
[INFO] frobbed toml for playbook-0.4.1 written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/reg/playbook/0.4.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking playbook-0.4.1 against master#e305df1846a6d985315917ae0c81b74af8b4e641 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-3/master#e305df1846a6d985315917ae0c81b74af8b4e641:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/reg/playbook/0.4.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] da8fb76f34abc34988e2bb8d7ecc8626d7ae824d232ab96a223115827372f1c5
[INFO] running `"docker" "start" "-a" "da8fb76f34abc34988e2bb8d7ecc8626d7ae824d232ab96a223115827372f1c5"`
[INFO] [stderr]    Compiling impersonate v0.0.3
[INFO] [stderr]     Checking rpds v0.5.0
[INFO] [stderr]     Checking ymlctx v0.1.8
[INFO] [stderr]     Checking playbook v0.4.1 (/opt/crater/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: 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:209:9
[INFO] [stderr]     |
[INFO] [stderr] 209 |     let nproc = pool.len();
[INFO] [stderr]     |         ^^^^^ help: consider prefixing 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:208:14
[INFO] [stderr]     |
[INFO] [stderr] 208 | fn fork_pool(grid: Vec<Context>, pool: &Vec<CtxObj>) -> TransientContext {
[INFO] [stderr]     |              ^^^^ help: consider prefixing with an underscore: `_grid`
[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:209:9
[INFO] [stderr]     |
[INFO] [stderr] 209 |     let nproc = pool.len();
[INFO] [stderr]     |         ^^^^^ help: consider prefixing 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:208:14
[INFO] [stderr]     |
[INFO] [stderr] 208 | fn fork_pool(grid: Vec<Context>, pool: &Vec<CtxObj>) -> TransientContext {
[INFO] [stderr]     |              ^^^^ help: consider prefixing with an underscore: `_grid`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/ci.rs:18:21
[INFO] [stderr]    |
[INFO] [stderr] 18 |                 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 8.51s
[INFO] running `"docker" "inspect" "da8fb76f34abc34988e2bb8d7ecc8626d7ae824d232ab96a223115827372f1c5"`
[INFO] running `"docker" "rm" "-f" "da8fb76f34abc34988e2bb8d7ecc8626d7ae824d232ab96a223115827372f1c5"`
[INFO] [stdout] da8fb76f34abc34988e2bb8d7ecc8626d7ae824d232ab96a223115827372f1c5