[INFO] cloning repository https://github.com/Dylan-DPC/cargo-caldera
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Dylan-DPC/cargo-caldera" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDylan-DPC%2Fcargo-caldera", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDylan-DPC%2Fcargo-caldera'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 271e492865081a1f33f9ead3e57d3ba6ca9edaf4
[INFO] checking Dylan-DPC/cargo-caldera against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDylan-DPC%2Fcargo-caldera" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Dylan-DPC/cargo-caldera on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Dylan-DPC/cargo-caldera
[INFO] finished tweaking git repo https://github.com/Dylan-DPC/cargo-caldera
[INFO] tweaked toml for git repo https://github.com/Dylan-DPC/cargo-caldera written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/Dylan-DPC/cargo-caldera already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4acbbdd688a4fa4d478bdc8272d1fe53ec47abe3b55e1c7d07ed87e8da04588e
[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" "4acbbdd688a4fa4d478bdc8272d1fe53ec47abe3b55e1c7d07ed87e8da04588e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4acbbdd688a4fa4d478bdc8272d1fe53ec47abe3b55e1c7d07ed87e8da04588e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4acbbdd688a4fa4d478bdc8272d1fe53ec47abe3b55e1c7d07ed87e8da04588e", kill_on_drop: false }`
[INFO] [stdout] 4acbbdd688a4fa4d478bdc8272d1fe53ec47abe3b55e1c7d07ed87e8da04588e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b7468333216f6dd87f3c03522c111f79e9c9c005fa6791848e72e2bc2425372
[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" "7b7468333216f6dd87f3c03522c111f79e9c9c005fa6791848e72e2bc2425372", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.26
[INFO] [stderr]    Compiling libc v0.2.47
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling structopt-derive v0.2.14
[INFO] [stderr]    Compiling serde_derive v1.0.85
[INFO] [stderr]     Checking structopt v0.2.14
[INFO] [stderr]     Checking cargo-caldera v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `path::PathBuf`
[INFO] [stdout]  --> src/main.rs:2:22
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{io::Write, path::PathBuf};
[INFO] [stdout]   |                      ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `path::PathBuf`
[INFO] [stdout]  --> src/main.rs:2:22
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{io::Write, path::PathBuf};
[INFO] [stdout]   |                      ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `opt`
[INFO] [stdout]   --> src/main.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let opt = Cli::from_args();
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_opt`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `path`
[INFO] [stdout]   --> src/runner.rs:38:20
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn version(path: &Path) -> Result<Version, Box<dyn Error>> {
[INFO] [stdout]    |                    ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `opt`
[INFO] [stdout]   --> src/main.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let opt = Cli::from_args();
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_opt`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `path`
[INFO] [stdout]   --> src/runner.rs:38:20
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn version(path: &Path) -> Result<Version, Box<dyn Error>> {
[INFO] [stdout]    |                    ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.10s
[INFO] running `Command { std: "docker" "inspect" "7b7468333216f6dd87f3c03522c111f79e9c9c005fa6791848e72e2bc2425372", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b7468333216f6dd87f3c03522c111f79e9c9c005fa6791848e72e2bc2425372", kill_on_drop: false }`
[INFO] [stdout] 7b7468333216f6dd87f3c03522c111f79e9c9c005fa6791848e72e2bc2425372