[INFO] cloning repository https://github.com/kquick/chainsop
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kquick/chainsop" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkquick%2Fchainsop", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkquick%2Fchainsop'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 81750f5d8b053eb8aa00264c0ee81cd3619878b8
[INFO] checking kquick/chainsop against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkquick%2Fchainsop" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kquick/chainsop on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kquick/chainsop
[INFO] finished tweaking git repo https://github.com/kquick/chainsop
[INFO] tweaked toml for git repo https://github.com/kquick/chainsop written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kquick/chainsop 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]      Locking 1 package
[INFO] [stderr]     Updating chainsop v0.1.0 (/workspace/builds/worker-2-tc1/source) -> v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b38a44b22f1172d00c23bb59c2365c8ef25292728fedc519f78c8f703068d7b5
[INFO] running `Command { std: "docker" "start" "-a" "b38a44b22f1172d00c23bb59c2365c8ef25292728fedc519f78c8f703068d7b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b38a44b22f1172d00c23bb59c2365c8ef25292728fedc519f78c8f703068d7b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b38a44b22f1172d00c23bb59c2365c8ef25292728fedc519f78c8f703068d7b5", kill_on_drop: false }`
[INFO] [stdout] b38a44b22f1172d00c23bb59c2365c8ef25292728fedc519f78c8f703068d7b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff0c136a8620809d531a57e0d433ff93b2f30549afa5ce86e95c18c4b9a2463c
[INFO] running `Command { std: "docker" "start" "-a" "ff0c136a8620809d531a57e0d433ff93b2f30549afa5ce86e95c18c4b9a2463c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling rustix v0.38.31
[INFO] [stderr]     Checking bitflags v2.4.2
[INFO] [stderr]     Checking linux-raw-sys v0.4.13
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]     Checking fastrand v2.0.1
[INFO] [stderr]    Compiling thiserror v1.0.39
[INFO] [stderr]    Compiling anyhow v1.0.80
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking unarray v0.1.4
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking tempfile v3.10.1
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking proptest v1.4.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.39
[INFO] [stderr]    Compiling filesprep_derive v0.1.0 (/opt/rustwide/workdir/src/filehandling/filesprep_derive)
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]   --> src/filehandling/filesprep_derive/src/lib.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | use syn;
[INFO] [stdout]    |     ^^^ the item `syn` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking chainsop v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `tempfile` is imported redundantly
[INFO] [stdout]  --> src/filehandling/defs.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use tempfile;
[INFO] [stdout]   |     ^^^^^^^^ the item `tempfile` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `anyhow` is imported redundantly
[INFO] [stdout]  --> src/filehandling/accesses.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use anyhow;
[INFO] [stdout]   |     ^^^^^^ the item `anyhow` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `anyhow` is imported redundantly
[INFO] [stdout]  --> src/errors.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use anyhow;
[INFO] [stdout]   |     ^^^^^^ the item `anyhow` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `thiserror` is imported redundantly
[INFO] [stdout]  --> src/errors.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use thiserror;
[INFO] [stdout]   |     ^^^^^^^^^ the item `thiserror` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::operations::generic::*`
[INFO] [stdout]  --> src/operations.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use crate::operations::generic::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::operations::subproc::SubProcOperation`
[INFO] [stdout]  --> src/operations.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use crate::operations::subproc::SubProcOperation;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::operations::function::FunctionOperation`
[INFO] [stdout]  --> src/operations.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use crate::operations::function::FunctionOperation;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::operations::chained::ChainedOps`
[INFO] [stdout]  --> src/operations.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub use crate::operations::chained::ChainedOps;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `anyhow` is imported redundantly
[INFO] [stdout]   --> src/execution.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use anyhow;
[INFO] [stdout]    |     ^^^^^^ the item `anyhow` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `glob` is imported redundantly
[INFO] [stdout]   --> src/execution.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use glob;
[INFO] [stdout]    |     ^^^^ the item `glob` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `tempfile` is imported redundantly
[INFO] [stdout]  --> src/filehandling/defs.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use tempfile;
[INFO] [stdout]   |     ^^^^^^^^ the item `tempfile` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `anyhow` is imported redundantly
[INFO] [stdout]  --> src/errors.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use anyhow;
[INFO] [stdout]   |     ^^^^^^ the item `anyhow` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `thiserror` is imported redundantly
[INFO] [stdout]  --> src/errors.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use thiserror;
[INFO] [stdout]   |     ^^^^^^^^^ the item `thiserror` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Rc` is imported redundantly
[INFO] [stdout]    --> src/operations/function.rs:152:9
[INFO] [stdout]     |
[INFO] [stdout] 149 |     use super::*;
[INFO] [stdout]     |         -------- the item `Rc` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 152 |     use std::rc::Rc;
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `RefCell` is imported redundantly
[INFO] [stdout]    --> src/operations/chained.rs:888:9
[INFO] [stdout]     |
[INFO] [stdout] 887 |     use super::*;
[INFO] [stdout]     |         -------- the item `RefCell` is already imported here
[INFO] [stdout] 888 |     use std::cell::RefCell;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `PathBuf` is imported redundantly
[INFO] [stdout]    --> src/operations/chained.rs:889:9
[INFO] [stdout]     |
[INFO] [stdout] 887 |     use super::*;
[INFO] [stdout]     |         -------- the item `PathBuf` is already imported here
[INFO] [stdout] 888 |     use std::cell::RefCell;
[INFO] [stdout] 889 |     use std::path::PathBuf;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::operations::generic::*`
[INFO] [stdout]  --> src/operations.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use crate::operations::generic::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::operations::subproc::SubProcOperation`
[INFO] [stdout]  --> src/operations.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use crate::operations::subproc::SubProcOperation;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::operations::function::FunctionOperation`
[INFO] [stdout]  --> src/operations.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use crate::operations::function::FunctionOperation;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::operations::chained::ChainedOps`
[INFO] [stdout]  --> src/operations.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub use crate::operations::chained::ChainedOps;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `anyhow` is imported redundantly
[INFO] [stdout]   --> src/execution.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use anyhow;
[INFO] [stdout]    |     ^^^^^^ the item `anyhow` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `glob` is imported redundantly
[INFO] [stdout]   --> src/execution.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use glob;
[INFO] [stdout]    |     ^^^^ the item `glob` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.93s
[INFO] running `Command { std: "docker" "inspect" "ff0c136a8620809d531a57e0d433ff93b2f30549afa5ce86e95c18c4b9a2463c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff0c136a8620809d531a57e0d433ff93b2f30549afa5ce86e95c18c4b9a2463c", kill_on_drop: false }`
[INFO] [stdout] ff0c136a8620809d531a57e0d433ff93b2f30549afa5ce86e95c18c4b9a2463c