[INFO] fetching crate eureka 1.8.0...
[INFO] checking eureka-1.8.0 against beta-2020-07-24 for pr-75494-beta
[INFO] extracting crate eureka 1.8.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate eureka 1.8.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate eureka 1.8.0
[INFO] finished tweaking crates.io crate eureka 1.8.0
[INFO] tweaked toml for crates.io crate eureka 1.8.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate eureka 1.8.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e903edbf690d081dd843a6ab9cfb79124228e2a01dda5c3bc86f7492f6aea3c7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e903edbf690d081dd843a6ab9cfb79124228e2a01dda5c3bc86f7492f6aea3c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e903edbf690d081dd843a6ab9cfb79124228e2a01dda5c3bc86f7492f6aea3c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e903edbf690d081dd843a6ab9cfb79124228e2a01dda5c3bc86f7492f6aea3c7", kill_on_drop: false }`
[INFO] [stdout] e903edbf690d081dd843a6ab9cfb79124228e2a01dda5c3bc86f7492f6aea3c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 00dc8f22f108ee637d94e79fac573d57096870d0e6db9f38b7c0985e5f532fb6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "00dc8f22f108ee637d94e79fac573d57096870d0e6db9f38b7c0985e5f532fb6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking clap v2.33.2
[INFO] [stderr]    Compiling cc v1.0.58
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling libssh2-sys v0.2.18
[INFO] [stderr]    Compiling libgit2-sys v0.12.9+1.0.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]     Checking git2 v0.13.8
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking which v4.0.2
[INFO] [stderr]     Checking eureka v1.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `eureka`
[INFO] [stdout]   --> tests/tests.rs:76:13
[INFO] [stdout]    |
[INFO] [stdout] 76 |         let eureka = Eureka::new(fh, printer, reader);
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_eureka`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]   --> tests/tests.rs:22:31
[INFO] [stdout]    |
[INFO] [stdout] 22 |         fn config_read(&self, file: ConfigFile) -> io::Result<String> {
[INFO] [stdout]    |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]   --> tests/tests.rs:26:32
[INFO] [stdout]    |
[INFO] [stdout] 26 |         fn config_write(&self, file: ConfigFile, value: String) -> io::Result<()> {
[INFO] [stdout]    |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> tests/tests.rs:26:50
[INFO] [stdout]    |
[INFO] [stdout] 26 |         fn config_write(&self, file: ConfigFile, value: String) -> io::Result<()> {
[INFO] [stdout]    |                                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]   --> tests/tests.rs:32:27
[INFO] [stdout]    |
[INFO] [stdout] 32 |         fn file_rm(&self, file: ConfigFile) -> io::Result<()> {
[INFO] [stdout]    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> tests/tests.rs:40:29
[INFO] [stdout]    |
[INFO] [stdout] 40 |         fn print(&mut self, value: &str) {
[INFO] [stdout]    |                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> tests/tests.rs:44:31
[INFO] [stdout]    |
[INFO] [stdout] 44 |         fn println(&mut self, value: &str) {
[INFO] [stdout]    |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> tests/tests.rs:54:36
[INFO] [stdout]    |
[INFO] [stdout] 54 |         fn input_header(&mut self, value: &str) {
[INFO] [stdout]    |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> tests/tests.rs:58:38
[INFO] [stdout]    |
[INFO] [stdout] 58 |         fn println_styled(&mut self, value: &str, opts: PrintOptions) {
[INFO] [stdout]    |                                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `opts`
[INFO] [stdout]   --> tests/tests.rs:58:51
[INFO] [stdout]    |
[INFO] [stdout] 58 |         fn println_styled(&mut self, value: &str, opts: PrintOptions) {
[INFO] [stdout]    |                                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_opts`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 52.34s
[INFO] running `Command { std: "docker" "inspect" "00dc8f22f108ee637d94e79fac573d57096870d0e6db9f38b7c0985e5f532fb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00dc8f22f108ee637d94e79fac573d57096870d0e6db9f38b7c0985e5f532fb6", kill_on_drop: false }`
[INFO] [stdout] 00dc8f22f108ee637d94e79fac573d57096870d0e6db9f38b7c0985e5f532fb6
