[INFO] cloning repository https://github.com/wayslog/treenewbee
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wayslog/treenewbee" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwayslog%2Ftreenewbee", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwayslog%2Ftreenewbee'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3447b5e5fcaf798a05c6694578c63b47e8e4540c
[INFO] checking wayslog/treenewbee against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwayslog%2Ftreenewbee" "/workspace/builds/worker-79/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-79/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wayslog/treenewbee on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wayslog/treenewbee
[INFO] finished tweaking git repo https://github.com/wayslog/treenewbee
[INFO] tweaked toml for git repo https://github.com/wayslog/treenewbee written to /workspace/builds/worker-79/source/Cargo.toml
[INFO] crate git repo https://github.com/wayslog/treenewbee already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c26ae3c568b9aaad6a5c5e116b470e70c5964dc526ecbf21bcde9b52c93b0f3
[INFO] running `Command { std: "docker" "start" "-a" "1c26ae3c568b9aaad6a5c5e116b470e70c5964dc526ecbf21bcde9b52c93b0f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c26ae3c568b9aaad6a5c5e116b470e70c5964dc526ecbf21bcde9b52c93b0f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c26ae3c568b9aaad6a5c5e116b470e70c5964dc526ecbf21bcde9b52c93b0f3", kill_on_drop: false }`
[INFO] [stdout] 1c26ae3c568b9aaad6a5c5e116b470e70c5964dc526ecbf21bcde9b52c93b0f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 94dfb197a200e8712db6430942f65b223c19c4a746c39c48079bfa576e7a1b3e
[INFO] running `Command { std: "docker" "start" "-a" "94dfb197a200e8712db6430942f65b223c19c4a746c39c48079bfa576e7a1b3e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cc v1.0.28
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]    Compiling redis v0.9.1
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]     Checking ascii v0.9.1
[INFO] [stderr]     Checking rustc-demangle v0.1.11
[INFO] [stderr]     Checking termcolor v1.0.4
[INFO] [stderr]     Checking lzf v0.3.1
[INFO] [stderr]     Checking regex-syntax v0.6.4
[INFO] [stderr]     Checking smallvec v0.6.7
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking parking_lot_core v0.3.1
[INFO] [stderr]     Checking humantime v1.2.0
[INFO] [stderr]     Checking combine v3.6.3
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]     Checking tokio-reactor v0.1.7
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]     Checking tokio-tcp v0.1.2
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]     Checking env_logger v0.6.0
[INFO] [stderr]     Checking backtrace v0.3.11
[INFO] [stderr]     Checking failure v0.1.3
[INFO] [stderr]     Checking treenewbee v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `failure::Error`
[INFO] [stdout]  --> src/com.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use failure::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `failure::Error`
[INFO] [stdout]  --> src/com.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use failure::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde`
[INFO] [stdout]   --> src/lib.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use serde;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde`
[INFO] [stdout]   --> src/lib.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use serde;
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]   --> src/lib.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     let config = load_config();
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]   --> src/lib.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     let config = load_config();
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NotLZF`
[INFO] [stdout]   --> src/com.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     NotLZF,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NotLZF`
[INFO] [stdout]   --> src/com.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     NotLZF,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 58.03s
[INFO] running `Command { std: "docker" "inspect" "94dfb197a200e8712db6430942f65b223c19c4a746c39c48079bfa576e7a1b3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94dfb197a200e8712db6430942f65b223c19c4a746c39c48079bfa576e7a1b3e", kill_on_drop: false }`
[INFO] [stdout] 94dfb197a200e8712db6430942f65b223c19c4a746c39c48079bfa576e7a1b3e