[INFO] cloning repository https://github.com/Tomiyou/rustlab-python-interop
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Tomiyou/rustlab-python-interop" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTomiyou%2Frustlab-python-interop", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTomiyou%2Frustlab-python-interop'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 40f5ff35059285c7bda3f0f00be54fd83befadea
[INFO] checking Tomiyou/rustlab-python-interop against master#642c19bfc3a5c1de985bf5d0cc8207ac9d22708a for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTomiyou%2Frustlab-python-interop" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Tomiyou/rustlab-python-interop
[INFO] finished tweaking git repo https://github.com/Tomiyou/rustlab-python-interop
[INFO] tweaked toml for git repo https://github.com/Tomiyou/rustlab-python-interop written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Tomiyou/rustlab-python-interop on toolchain 642c19bfc3a5c1de985bf5d0cc8207ac9d22708a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Tomiyou/rustlab-python-interop 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" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stderr]     Checking inheritance v0.1.0 (/opt/rustwide/workdir/exercises/02_classes/05_inheritance)
[INFO] [stderr]     Checking output v0.1.0 (/opt/rustwide/workdir/exercises/01_intro/06_output)
[INFO] [stderr]     Checking outro2 v0.1.0 (/opt/rustwide/workdir/exercises/02_classes/07_outro)
[INFO] [stderr]     Checking outro3 v0.1.0 (/opt/rustwide/workdir/exercises/03_concurrency/06_outro)
[INFO] [stdout] warning: unused variable: `start_from`
[INFO] [stdout]   --> exercises/03_concurrency/06_outro/src/lib.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn site_map(start_from: String, site_map: Bound<'_, PySet>) {
[INFO] [stdout]    |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_start_from`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `site_map`
[INFO] [stdout]   --> exercises/03_concurrency/06_outro/src/lib.rs:46:37
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn site_map(start_from: String, site_map: Bound<'_, PySet>) {
[INFO] [stdout]    |                                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_site_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `msg` is never read
[INFO] [stdout]    --> exercises/02_classes/07_outro/src/lib.rs:159:5
[INFO] [stdout]     |
[INFO] [stdout] 158 | struct ExpiredDiscount {
[INFO] [stdout]     |        --------------- field in this struct
[INFO] [stdout] 159 |     msg: 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: field `msg` is never read
[INFO] [stdout]    --> exercises/02_classes/07_outro/src/lib.rs:159:5
[INFO] [stdout]     |
[INFO] [stdout] 158 | struct ExpiredDiscount {
[INFO] [stdout]     |        --------------- field in this struct
[INFO] [stdout] 159 |     msg: 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: `start_from`
[INFO] [stdout]   --> exercises/03_concurrency/06_outro/src/lib.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn site_map(start_from: String, site_map: Bound<'_, PySet>) {
[INFO] [stdout]    |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_start_from`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `site_map`
[INFO] [stdout]   --> exercises/03_concurrency/06_outro/src/lib.rs:46:37
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn site_map(start_from: String, site_map: Bound<'_, PySet>) {
[INFO] [stdout]    |                                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_site_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 38.33s
[INFO] running `Command { std: "docker" "inspect" "8c01fc95da690ae58e83b03162be29f7f6789af5e1cc4298f5e9b731810bf111", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c01fc95da690ae58e83b03162be29f7f6789af5e1cc4298f5e9b731810bf111", kill_on_drop: false }`
[INFO] [stdout] 8c01fc95da690ae58e83b03162be29f7f6789af5e1cc4298f5e9b731810bf111