[INFO] fetching crate rankmap 0.1.0...
[INFO] building rankmap-0.1.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate rankmap 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate rankmap 0.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rankmap 0.1.0
[INFO] tweaked toml for crates.io crate rankmap 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rankmap 0.1.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rankmap 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ea50469eb9d8830a43b6a5a3e60255d5e7e983b4a4e6e5eb3242bcbd79e94eb
[INFO] running `Command { std: "docker" "start" "-a" "0ea50469eb9d8830a43b6a5a3e60255d5e7e983b4a4e6e5eb3242bcbd79e94eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ea50469eb9d8830a43b6a5a3e60255d5e7e983b4a4e6e5eb3242bcbd79e94eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ea50469eb9d8830a43b6a5a3e60255d5e7e983b4a4e6e5eb3242bcbd79e94eb", kill_on_drop: false }`
[INFO] [stdout] 0ea50469eb9d8830a43b6a5a3e60255d5e7e983b4a4e6e5eb3242bcbd79e94eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4673a8f025ae553472d53a313dfb7cd3df31a0a0ea02e5fb5e8e70ee24b6c00d
[INFO] running `Command { std: "docker" "start" "-a" "4673a8f025ae553472d53a313dfb7cd3df31a0a0ea02e5fb5e8e70ee24b6c00d", kill_on_drop: false }`
[INFO] [stderr]    Compiling hashbrown v0.14.1
[INFO] [stderr]    Compiling indexmap v2.0.1
[INFO] [stderr]    Compiling rankmap v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "4673a8f025ae553472d53a313dfb7cd3df31a0a0ea02e5fb5e8e70ee24b6c00d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4673a8f025ae553472d53a313dfb7cd3df31a0a0ea02e5fb5e8e70ee24b6c00d", kill_on_drop: false }`
[INFO] [stdout] 4673a8f025ae553472d53a313dfb7cd3df31a0a0ea02e5fb5e8e70ee24b6c00d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 43617798d23ed16597599c2abbe5c86c775072b3f1081286b0fab7b2cdf84adc
[INFO] running `Command { std: "docker" "start" "-a" "43617798d23ed16597599c2abbe5c86c775072b3f1081286b0fab7b2cdf84adc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling memchr v2.6.3
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling semver v1.0.19
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling futures-sink v0.3.28
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling regex-syntax v0.7.5
[INFO] [stderr]    Compiling futures-io v0.3.28
[INFO] [stderr]    Compiling relative-path v1.9.0
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling futures-timer v3.0.2
[INFO] [stderr]    Compiling aho-corasick v1.1.1
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling rstest_macros v0.18.2
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]    Compiling regex-automata v0.3.8
[INFO] [stderr]    Compiling regex v1.9.5
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling futures-executor v0.3.28
[INFO] [stderr]    Compiling futures v0.3.28
[INFO] [stderr]    Compiling rstest v0.18.2
[INFO] [stderr]    Compiling rankmap v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `task`
[INFO] [stdout]   --> examples/scheduler.rs:43:18
[INFO] [stdout]    |
[INFO] [stdout] 43 |     if let Some((task, run_at)) = scheduler.remove(&"task3") {
[INFO] [stdout]    |                  ^^^^ help: if this is intentional, prefix it with an underscore: `_task`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `run_at`
[INFO] [stdout]   --> examples/scheduler.rs:43:24
[INFO] [stdout]    |
[INFO] [stdout] 43 |     if let Some((task, run_at)) = scheduler.remove(&"task3") {
[INFO] [stdout]    |                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_run_at`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 13.20s
[INFO] running `Command { std: "docker" "inspect" "43617798d23ed16597599c2abbe5c86c775072b3f1081286b0fab7b2cdf84adc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43617798d23ed16597599c2abbe5c86c775072b3f1081286b0fab7b2cdf84adc", kill_on_drop: false }`
[INFO] [stdout] 43617798d23ed16597599c2abbe5c86c775072b3f1081286b0fab7b2cdf84adc