[INFO] fetching crate r4d 0.8.2...
[INFO] checking r4d-0.8.2 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate r4d 0.8.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate r4d 0.8.2 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate r4d 0.8.2
[INFO] finished tweaking crates.io crate r4d 0.8.2
[INFO] tweaked toml for crates.io crate r4d 0.8.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate r4d 0.8.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lipsum v0.8.0
[INFO] [stderr]   Downloaded evalexpr v6.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0aa63012645e08bab09781a435d2d04348c8b99d50f1c0b2b38786c8902f02ef
[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" "0aa63012645e08bab09781a435d2d04348c8b99d50f1c0b2b38786c8902f02ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0aa63012645e08bab09781a435d2d04348c8b99d50f1c0b2b38786c8902f02ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0aa63012645e08bab09781a435d2d04348c8b99d50f1c0b2b38786c8902f02ef", kill_on_drop: false }`
[INFO] [stdout] 0aa63012645e08bab09781a435d2d04348c8b99d50f1c0b2b38786c8902f02ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0f7b60ddb73dec0793b654d7eef10256f6532cda433eae6962e4b7afd63b6cd
[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" "a0f7b60ddb73dec0793b654d7eef10256f6532cda433eae6962e4b7afd63b6cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]     Checking thiserror v1.0.26
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking r4d v0.8.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `green`
[INFO] [stdout]   --> src/utils.rs:99:12
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn green(string : &str) -> Box<dyn std::fmt::Display> {
[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: `green`
[INFO] [stdout]   --> src/utils.rs:99:12
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn green(string : &str) -> Box<dyn std::fmt::Display> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.05s
[INFO] running `Command { std: "docker" "inspect" "a0f7b60ddb73dec0793b654d7eef10256f6532cda433eae6962e4b7afd63b6cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0f7b60ddb73dec0793b654d7eef10256f6532cda433eae6962e4b7afd63b6cd", kill_on_drop: false }`
[INFO] [stdout] a0f7b60ddb73dec0793b654d7eef10256f6532cda433eae6962e4b7afd63b6cd