[INFO] cloning repository https://github.com/wondwise/wondwise
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wondwise/wondwise" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwondwise%2Fwondwise", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwondwise%2Fwondwise'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] edc051ecb26df1035958135491bfbfa1d880fb32
[INFO] checking wondwise/wondwise against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwondwise%2Fwondwise" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wondwise/wondwise on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wondwise/wondwise
[INFO] finished tweaking git repo https://github.com/wondwise/wondwise
[INFO] tweaked toml for git repo https://github.com/wondwise/wondwise written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/wondwise/wondwise already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "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 vec_map v0.8.2
[INFO] [stderr]   Downloaded textwrap v0.11.0
[INFO] [stderr]   Downloaded ansi_term v0.11.0
[INFO] [stderr]   Downloaded memchr v2.4.0
[INFO] [stderr]   Downloaded dirs-sys v0.3.6
[INFO] [stderr]   Downloaded redox_users v0.4.0
[INFO] [stderr]   Downloaded clap v2.33.3
[INFO] [stderr]   Downloaded wasi v0.10.2+wasi-snapshot-preview1
[INFO] [stderr]   Downloaded redox_syscall v0.2.7
[INFO] [stderr]   Downloaded dirs-sys-next v0.1.2
[INFO] [stderr]   Downloaded endian-type v0.1.2
[INFO] [stderr]   Downloaded nibble_vec v0.1.0
[INFO] [stderr]   Downloaded directories v3.0.2
[INFO] [stderr]   Downloaded colored v2.0.0
[INFO] [stderr]   Downloaded libc v0.2.94
[INFO] [stderr]   Downloaded nix v0.20.0
[INFO] [stderr]   Downloaded getrandom v0.2.2
[INFO] [stderr]   Downloaded fs2 v0.4.3
[INFO] [stderr]   Downloaded rustyline v8.0.0
[INFO] [stderr]   Downloaded utf8parse v0.2.0
[INFO] [stderr]   Downloaded radix_trie v0.2.1
[INFO] [stderr]   Downloaded dirs-next v2.0.0
[INFO] [stderr]   Downloaded strsim v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74d6092dc59e59f27d955b8e1b643bc681ef2ab981e83b70d7220900b2d2b9c7
[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" "74d6092dc59e59f27d955b8e1b643bc681ef2ab981e83b70d7220900b2d2b9c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74d6092dc59e59f27d955b8e1b643bc681ef2ab981e83b70d7220900b2d2b9c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74d6092dc59e59f27d955b8e1b643bc681ef2ab981e83b70d7220900b2d2b9c7", kill_on_drop: false }`
[INFO] [stdout] 74d6092dc59e59f27d955b8e1b643bc681ef2ab981e83b70d7220900b2d2b9c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dce69c0c161559b50363a92b2f9f5d36ecdd1fd2ac02671c52ee90c26d39a79b
[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" "dce69c0c161559b50363a92b2f9f5d36ecdd1fd2ac02671c52ee90c26d39a79b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking directories v3.0.2
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking rustyline v8.0.0
[INFO] [stderr]     Checking wondwise v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `verify`
[INFO] [stdout]   --> src/utils/dirs.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn verify(&self) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `config_dir`
[INFO] [stdout]   --> src/utils/dirs.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn config_dir(&self) -> &Path {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cache_dir`
[INFO] [stdout]   --> src/utils/dirs.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn cache_dir(&self) -> &Path {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Info`
[INFO] [stdout]   --> src/utils/logs.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     Info,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Error`
[INFO] [stdout]   --> src/utils/logs.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     Error,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Warning`
[INFO] [stdout]   --> src/utils/logs.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     Warning,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `verify`
[INFO] [stdout]   --> src/utils/dirs.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn verify(&self) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `config_dir`
[INFO] [stdout]   --> src/utils/dirs.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn config_dir(&self) -> &Path {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cache_dir`
[INFO] [stdout]   --> src/utils/dirs.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn cache_dir(&self) -> &Path {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Info`
[INFO] [stdout]   --> src/utils/logs.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     Info,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Warning`
[INFO] [stdout]   --> src/utils/logs.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     Warning,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.31s
[INFO] running `Command { std: "docker" "inspect" "dce69c0c161559b50363a92b2f9f5d36ecdd1fd2ac02671c52ee90c26d39a79b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dce69c0c161559b50363a92b2f9f5d36ecdd1fd2ac02671c52ee90c26d39a79b", kill_on_drop: false }`
[INFO] [stdout] dce69c0c161559b50363a92b2f9f5d36ecdd1fd2ac02671c52ee90c26d39a79b