[INFO] cloning repository https://github.com/py4mac/rust-sandbox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/py4mac/rust-sandbox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpy4mac%2Frust-sandbox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpy4mac%2Frust-sandbox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 41a2716ea78dc4765b769ba2e4da0b35c6adcba3
[INFO] checking py4mac/rust-sandbox/41a2716ea78dc4765b769ba2e4da0b35c6adcba3 against master#4068bafedd8ba724e332a5221c06a6fa531a30d2 for pr-146978
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpy4mac%2Frust-sandbox" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/py4mac/rust-sandbox
[INFO] finished tweaking git repo https://github.com/py4mac/rust-sandbox
[INFO] tweaked toml for git repo https://github.com/py4mac/rust-sandbox written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/py4mac/rust-sandbox on toolchain 4068bafedd8ba724e332a5221c06a6fa531a30d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4068bafedd8ba724e332a5221c06a6fa531a30d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/py4mac/rust-sandbox 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" "+4068bafedd8ba724e332a5221c06a6fa531a30d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded awc v2.0.2
[INFO] [stderr]   Downloaded time v0.2.23
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[INFO] [stderr]   Downloaded trust-dns-resolver v0.19.6
[INFO] [stderr]   Downloaded tokio v0.2.23
[INFO] [stderr]   Downloaded net2 v0.2.36
[INFO] [stderr]   Downloaded cc v1.0.65
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "+4068bafedd8ba724e332a5221c06a6fa531a30d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eef01737ceecf550084bb494ee74cd29a84ad0bbe9e21029730c52c55774adbd
[INFO] running `Command { std: "docker" "start" "-a" "eef01737ceecf550084bb494ee74cd29a84ad0bbe9e21029730c52c55774adbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eef01737ceecf550084bb494ee74cd29a84ad0bbe9e21029730c52c55774adbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eef01737ceecf550084bb494ee74cd29a84ad0bbe9e21029730c52c55774adbd", kill_on_drop: false }`
[INFO] [stdout] eef01737ceecf550084bb494ee74cd29a84ad0bbe9e21029730c52c55774adbd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "+4068bafedd8ba724e332a5221c06a6fa531a30d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 815ae725b2447b4de2cbf803355933067b574029612fd4a8a4360fd935d65095
[INFO] running `Command { std: "docker" "start" "-a" "815ae725b2447b4de2cbf803355933067b574029612fd4a8a4360fd935d65095", kill_on_drop: false }`
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[INFO] [stderr]     Checking once_cell v1.5.2
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[INFO] [stderr]     Checking futures-io v0.3.8
[INFO] [stderr]     Checking smallvec v1.5.0
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
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[INFO] [stderr]     Checking futures-channel v0.3.8
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[INFO] [stderr]     Checking thiserror v1.0.22
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[INFO] [stderr]     Checking actix-utils v2.0.0
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[INFO] [stderr]     Checking actix-http v2.2.0
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[INFO] [stderr]     Checking rust-sandbox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `database`
[INFO] [stdout]   --> src/cli_v2.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let database = Database::new();
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_database`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `map` is never read
[INFO] [stdout]   --> src/cli_v2.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | struct Database {
[INFO] [stdout]    |        -------- field in this struct
[INFO] [stdout] 30 |     map: collections::HashMap<String, String>,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `database`
[INFO] [stdout]   --> src/cli_v2.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let database = Database::new();
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_database`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `map` is never read
[INFO] [stdout]   --> src/cli_v2.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | struct Database {
[INFO] [stdout]    |        -------- field in this struct
[INFO] [stdout] 30 |     map: collections::HashMap<String, String>,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 33.95s
[INFO] running `Command { std: "docker" "inspect" "815ae725b2447b4de2cbf803355933067b574029612fd4a8a4360fd935d65095", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "815ae725b2447b4de2cbf803355933067b574029612fd4a8a4360fd935d65095", kill_on_drop: false }`
[INFO] [stdout] 815ae725b2447b4de2cbf803355933067b574029612fd4a8a4360fd935d65095