[INFO] updating cached repository https://github.com/falconre/finch
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f880cf79add2e096c9644aa5f1eb7bddf2e590ec
[INFO] checking falconre/finch against master#446e5e57b667c841ba3ebb4b41b44fb98bd3af4b for pr-65294
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffalconre%2Ffinch" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/falconre/finch on toolchain 446e5e57b667c841ba3ebb4b41b44fb98bd3af4b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+446e5e57b667c841ba3ebb4b41b44fb98bd3af4b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/falconre/finch
[INFO] finished tweaking git repo https://github.com/falconre/finch
[INFO] tweaked toml for git repo https://github.com/falconre/finch written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/falconre/finch already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+446e5e57b667c841ba3ebb4b41b44fb98bd3af4b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+446e5e57b667c841ba3ebb4b41b44fb98bd3af4b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e5ef4f2a247ce9b56f903f84d8bf968d4747c6e3e95aad726a393f2f661889c3
[INFO] running `"docker" "start" "-a" "e5ef4f2a247ce9b56f903f84d8bf968d4747c6e3e95aad726a393f2f661889c3"`
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]    Compiling num-bigint v0.2.1
[INFO] [stderr]     Checking z3-sys v0.3.0
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]    Compiling syntex_errors v0.58.1
[INFO] [stderr]    Compiling libloading v0.4.3
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]    Compiling scroll v0.9.2
[INFO] [stderr]    Compiling textwrap v0.10.0
[INFO] [stderr]    Compiling clang-sys v0.19.0
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking nom v4.1.1
[INFO] [stderr]    Compiling syn v0.15.21
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]    Compiling syntex_syntax v0.58.1
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]     Checking error-chain v0.12.0
[INFO] [stderr]     Checking rustyline v1.0.0
[INFO] [stderr]     Checking simplelog v0.5.3
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking rayon v1.0.3
[INFO] [stderr]    Compiling env_logger v0.4.3
[INFO] [stderr]    Compiling scroll_derive v0.9.5
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]     Checking serde_json v1.0.33
[INFO] [stderr]     Checking goblin v0.0.17
[INFO] [stderr]     Checking goblin v0.0.15
[INFO] [stderr]    Compiling syntex v0.58.1
[INFO] [stderr]    Compiling aster v0.41.0
[INFO] [stderr]    Compiling quasi v0.32.0
[INFO] [stderr]    Compiling quasi_codegen v0.32.0
[INFO] [stderr]    Compiling bindgen v0.30.0
[INFO] [stderr]    Compiling falcon_capstone v0.2.1
[INFO] [stderr]     Checking falcon v0.4.4
[INFO] [stderr]     Checking falcon-z3 v0.4.4
[INFO] [stderr]     Checking falcon-finch v0.4.4 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> lib/executor/driver.rs:16:26
[INFO] [stderr]    |
[INFO] [stderr] 16 |     architecture: RC<Box<Architecture>>,
[INFO] [stderr]    |                          ^^^^^^^^^^^^ help: use `dyn`: `dyn Architecture`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> lib/executor/driver.rs:27:30
[INFO] [stderr]    |
[INFO] [stderr] 27 |         architecture: RC<Box<Architecture>>
[INFO] [stderr]    |                              ^^^^^^^^^^^^ help: use `dyn`: `dyn Architecture`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> lib/executor/driver.rs:42:30
[INFO] [stderr]    |
[INFO] [stderr] 42 |         architecture: RC<Box<Architecture>>,
[INFO] [stderr]    |                              ^^^^^^^^^^^^ help: use `dyn`: `dyn Architecture`
[INFO] [stderr] 
[INFO] [stderr] warning: the item `eval` is imported redundantly
[INFO] [stderr]    --> lib/executor/memory.rs:126:13
[INFO] [stderr]     |
[INFO] [stderr] 1   | use executor::*;
[INFO] [stderr]     |     ----------- the item `eval` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 126 |         use executor::eval;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> lib/executor/driver.rs:16:26
[INFO] [stderr]    |
[INFO] [stderr] 16 |     architecture: RC<Box<Architecture>>,
[INFO] [stderr]    |                          ^^^^^^^^^^^^ help: use `dyn`: `dyn Architecture`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> lib/executor/driver.rs:27:30
[INFO] [stderr]    |
[INFO] [stderr] 27 |         architecture: RC<Box<Architecture>>
[INFO] [stderr]    |                              ^^^^^^^^^^^^ help: use `dyn`: `dyn Architecture`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> lib/executor/driver.rs:42:30
[INFO] [stderr]    |
[INFO] [stderr] 42 |         architecture: RC<Box<Architecture>>,
[INFO] [stderr]    |                              ^^^^^^^^^^^^ help: use `dyn`: `dyn Architecture`
[INFO] [stderr] 
[INFO] [stderr] warning: the item `eval` is imported redundantly
[INFO] [stderr]    --> lib/executor/memory.rs:126:13
[INFO] [stderr]     |
[INFO] [stderr] 1   | use executor::*;
[INFO] [stderr]     |     ----------- the item `eval` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 126 |         use executor::eval;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> lib/lib.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | /     error_chain! {
[INFO] [stderr] 23 | |         types {
[INFO] [stderr] 24 | |             Error, ErrorKind, ResultExt, Result;
[INFO] [stderr] 25 | |         }
[INFO] [stderr] ...  |
[INFO] [stderr] 51 | |         }
[INFO] [stderr] 52 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> lib/lib.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | /     error_chain! {
[INFO] [stderr] 23 | |         types {
[INFO] [stderr] 24 | |             Error, ErrorKind, ResultExt, Result;
[INFO] [stderr] 25 | |         }
[INFO] [stderr] ...  |
[INFO] [stderr] 51 | |         }
[INFO] [stderr] 52 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> lib/lib.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | /     error_chain! {
[INFO] [stderr] 23 | |         types {
[INFO] [stderr] 24 | |             Error, ErrorKind, ResultExt, Result;
[INFO] [stderr] 25 | |         }
[INFO] [stderr] ...  |
[INFO] [stderr] 51 | |         }
[INFO] [stderr] 52 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> lib/lib.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | /     error_chain! {
[INFO] [stderr] 23 | |         types {
[INFO] [stderr] 24 | |             Error, ErrorKind, ResultExt, Result;
[INFO] [stderr] 25 | |         }
[INFO] [stderr] ...  |
[INFO] [stderr] 51 | |         }
[INFO] [stderr] 52 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> lib/platform/linux/amd64.rs:82:17
[INFO] [stderr]    |
[INFO] [stderr] 82 |             let mut paths = vec![base_path.to_path_buf()];
[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: variable does not need to be mutable
[INFO] [stderr]   --> lib/platform/linux/amd64.rs:82:17
[INFO] [stderr]    |
[INFO] [stderr] 82 |             let mut paths = vec![base_path.to_path_buf()];
[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: variable does not need to be mutable
[INFO] [stderr]    --> lib/platform/linux/filesystem.rs:101:21
[INFO] [stderr]     |
[INFO] [stderr] 101 |                 let mut fd = self.file_descriptors.get_mut(&fd)
[INFO] [stderr]     |                     ----^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> lib/platform/linux/mips.rs:81:17
[INFO] [stderr]    |
[INFO] [stderr] 81 |             let mut paths = vec![base_path.to_path_buf()];
[INFO] [stderr]    |                 ----^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> lib/platform/linux/filesystem.rs:101:21
[INFO] [stderr]     |
[INFO] [stderr] 101 |                 let mut fd = self.file_descriptors.get_mut(&fd)
[INFO] [stderr]     |                     ----^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> lib/platform/linux/mips.rs:81:17
[INFO] [stderr]    |
[INFO] [stderr] 81 |             let mut paths = vec![base_path.to_path_buf()];
[INFO] [stderr]    |                 ----^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/hooks.rs:7:15
[INFO] [stderr]   |
[INFO] [stderr] 7 |     hook: Box<Fn(&Driver<P>) -> Result<Option<Vec<Driver<P>>>>>
[INFO] [stderr]   |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Driver<P>) -> Result<Option<Vec<Driver<P>>>>`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 | /     error_chain! {
[INFO] [stderr] 25 | |         types {
[INFO] [stderr] 26 | |             Error, ErrorKind, ResultExt, Result;
[INFO] [stderr] 27 | |         }
[INFO] [stderr] ...  |
[INFO] [stderr] 34 | |         }
[INFO] [stderr] 35 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 | /     error_chain! {
[INFO] [stderr] 25 | |         types {
[INFO] [stderr] 26 | |             Error, ErrorKind, ResultExt, Result;
[INFO] [stderr] 27 | |         }
[INFO] [stderr] ...  |
[INFO] [stderr] 34 | |         }
[INFO] [stderr] 35 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/hooks.rs:7:15
[INFO] [stderr]   |
[INFO] [stderr] 7 |     hook: Box<Fn(&Driver<P>) -> Result<Option<Vec<Driver<P>>>>>
[INFO] [stderr]   |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Driver<P>) -> Result<Option<Vec<Driver<P>>>>`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 | /     error_chain! {
[INFO] [stderr] 25 | |         types {
[INFO] [stderr] 26 | |             Error, ErrorKind, ResultExt, Result;
[INFO] [stderr] 27 | |         }
[INFO] [stderr] ...  |
[INFO] [stderr] 34 | |         }
[INFO] [stderr] 35 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 | /     error_chain! {
[INFO] [stderr] 25 | |         types {
[INFO] [stderr] 26 | |             Error, ErrorKind, ResultExt, Result;
[INFO] [stderr] 27 | |         }
[INFO] [stderr] ...  |
[INFO] [stderr] 34 | |         }
[INFO] [stderr] 35 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4m 11s
[INFO] running `"docker" "inspect" "e5ef4f2a247ce9b56f903f84d8bf968d4747c6e3e95aad726a393f2f661889c3"`
[INFO] running `"docker" "rm" "-f" "e5ef4f2a247ce9b56f903f84d8bf968d4747c6e3e95aad726a393f2f661889c3"`
[INFO] [stdout] e5ef4f2a247ce9b56f903f84d8bf968d4747c6e3e95aad726a393f2f661889c3