[INFO] crate emit_ansi_term 0.2.0 is already in cache
[INFO] checking emit_ansi_term-0.2.0 against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66504-1
[INFO] extracting crate emit_ansi_term 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate emit_ansi_term 0.2.0 on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate emit_ansi_term 0.2.0
[INFO] finished tweaking crates.io crate emit_ansi_term 0.2.0
[INFO] tweaked toml for crates.io crate emit_ansi_term 0.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "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] 210881595c7b4300d887172f8023ce991b81dbc230734997e425f514a612d097
[INFO] running `"docker" "start" "-a" "210881595c7b4300d887172f8023ce991b81dbc230734997e425f514a612d097"`
[INFO] [stderr]     Checking itoa v0.1.1
[INFO] [stderr]     Checking serde v0.7.15
[INFO] [stderr]     Checking ansi_term v0.7.5
[INFO] [stderr]     Checking serde_json v0.7.4
[INFO] [stderr]     Checking emit v0.10.0
[INFO] [stderr]     Checking emit_ansi_term v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:56:13
[INFO] [stderr]    |
[INFO] [stderr] 56 |             try!(writeln!(to, "[{} {}] {}",
[INFO] [stderr]    |             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[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]   --> src/lib.rs:49:73
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn accept_events(&self, events: &[Event<'static>])-> Result<(), Box<Error>> {
[INFO] [stderr]    |                                                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:56:13
[INFO] [stderr]    |
[INFO] [stderr] 56 |             try!(writeln!(to, "[{} {}] {}",
[INFO] [stderr]    |             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:49:73
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn accept_events(&self, events: &[Event<'static>])-> Result<(), Box<Error>> {
[INFO] [stderr]    |                                                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:53:17
[INFO] [stderr]    |
[INFO] [stderr] 53 |             let mut to = &mut out.lock();
[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]   --> src/lib.rs:53:17
[INFO] [stderr]    |
[INFO] [stderr] 53 |             let mut to = &mut out.lock();
[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 4.93s
[INFO] running `"docker" "inspect" "210881595c7b4300d887172f8023ce991b81dbc230734997e425f514a612d097"`
[INFO] running `"docker" "rm" "-f" "210881595c7b4300d887172f8023ce991b81dbc230734997e425f514a612d097"`
[INFO] [stdout] 210881595c7b4300d887172f8023ce991b81dbc230734997e425f514a612d097