[INFO] fetching crate clitask 0.9.0...
[INFO] building clitask-0.9.0 against master#881c1ac408d93bb7adaa3a51dabab9266e82eee8 for issue-85264
[INFO] extracting crate clitask 0.9.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate clitask 0.9.0 on toolchain 881c1ac408d93bb7adaa3a51dabab9266e82eee8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate clitask 0.9.0
[INFO] finished tweaking crates.io crate clitask 0.9.0
[INFO] tweaked toml for crates.io crate clitask 0.9.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "fetch" "--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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded preferences v1.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ccd86c00434d23ee85e5798e96be75b844fc881e74b32e54c05bae2d775a32ef
[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" "ccd86c00434d23ee85e5798e96be75b844fc881e74b32e54c05bae2d775a32ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ccd86c00434d23ee85e5798e96be75b844fc881e74b32e54c05bae2d775a32ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccd86c00434d23ee85e5798e96be75b844fc881e74b32e54c05bae2d775a32ef", kill_on_drop: false }`
[INFO] [stdout] ccd86c00434d23ee85e5798e96be75b844fc881e74b32e54c05bae2d775a32ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb571da184db352c7f7e2bd6d5e9075a49a63a46699e19def19522b345ab0bf9
[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" "bb571da184db352c7f7e2bd6d5e9075a49a63a46699e19def19522b345ab0bf9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling xdg v2.2.0
[INFO] [stderr]    Compiling curl v0.4.38
[INFO] [stderr]    Compiling serde v0.9.15
[INFO] [stderr]    Compiling itoa v0.3.4
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling openssl-sys v0.9.63
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling curl-sys v0.4.44+curl-7.77.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling app_dirs v1.2.1
[INFO] [stderr]    Compiling serde_codegen_internals v0.14.2
[INFO] [stderr]    Compiling socket2 v0.4.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling serde_derive v0.9.15
[INFO] [stderr]    Compiling serde_json v0.9.10
[INFO] [stderr]    Compiling preferences v1.1.0
[INFO] [stderr]    Compiling clitask v0.9.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:129:13
[INFO] [stdout]     |
[INFO] [stdout] 129 |         Err(e) => Settings {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/command.rs:44:21
[INFO] [stdout]    |
[INFO] [stdout] 44 |                 let mut webtask;
[INFO] [stdout]    |                     ----^^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/settings.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         self.save(&APP_INFO, ".config");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/settings.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         self.save(&APP_INFO, ".config");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.49s
[INFO] running `Command { std: "docker" "inspect" "bb571da184db352c7f7e2bd6d5e9075a49a63a46699e19def19522b345ab0bf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb571da184db352c7f7e2bd6d5e9075a49a63a46699e19def19522b345ab0bf9", kill_on_drop: false }`
[INFO] [stdout] bb571da184db352c7f7e2bd6d5e9075a49a63a46699e19def19522b345ab0bf9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef79a2480e42e38061c0a3cbdfa07fab07e007735bf573415d677203e5e106cc
[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" "ef79a2480e42e38061c0a3cbdfa07fab07e007735bf573415d677203e5e106cc", kill_on_drop: false }`
[INFO] [stderr]    Compiling clitask v0.9.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:129:13
[INFO] [stdout]     |
[INFO] [stdout] 129 |         Err(e) => Settings {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/command.rs:44:21
[INFO] [stdout]    |
[INFO] [stdout] 44 |                 let mut webtask;
[INFO] [stdout]    |                     ----^^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/settings.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         self.save(&APP_INFO, ".config");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/settings.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         self.save(&APP_INFO, ".config");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `Command { std: "docker" "inspect" "ef79a2480e42e38061c0a3cbdfa07fab07e007735bf573415d677203e5e106cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef79a2480e42e38061c0a3cbdfa07fab07e007735bf573415d677203e5e106cc", kill_on_drop: false }`
[INFO] [stdout] ef79a2480e42e38061c0a3cbdfa07fab07e007735bf573415d677203e5e106cc
