[INFO] cloning repository https://github.com/cspr-rad/prusti-lunchnlearn [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cspr-rad/prusti-lunchnlearn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcspr-rad%2Fprusti-lunchnlearn", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcspr-rad%2Fprusti-lunchnlearn'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e7683df874edb46e134c85235f3b41c17572c55d [INFO] checking cspr-rad/prusti-lunchnlearn against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcspr-rad%2Fprusti-lunchnlearn" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/cspr-rad/prusti-lunchnlearn [INFO] finished tweaking git repo https://github.com/cspr-rad/prusti-lunchnlearn [INFO] tweaked toml for git repo https://github.com/cspr-rad/prusti-lunchnlearn written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/cspr-rad/prusti-lunchnlearn on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/cspr-rad/prusti-lunchnlearn 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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 318157db43f45703afdd7ae9d1b99e553b2e0565acf650e4221c6eb6bb943bce [INFO] running `Command { std: "docker" "start" "-a" "318157db43f45703afdd7ae9d1b99e553b2e0565acf650e4221c6eb6bb943bce", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "318157db43f45703afdd7ae9d1b99e553b2e0565acf650e4221c6eb6bb943bce", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "318157db43f45703afdd7ae9d1b99e553b2e0565acf650e4221c6eb6bb943bce", kill_on_drop: false }` [INFO] [stdout] 318157db43f45703afdd7ae9d1b99e553b2e0565acf650e4221c6eb6bb943bce [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c93695a1fafd28f11c8d6a35d487372fc6ee5333af28da388ac44d605734c355 [INFO] running `Command { std: "docker" "start" "-a" "c93695a1fafd28f11c8d6a35d487372fc6ee5333af28da388ac44d605734c355", kill_on_drop: false }` [INFO] [stderr] Compiling prusti-contracts-proc-macros v0.2.0 [INFO] [stderr] Checking prusti-contracts v0.2.0 [INFO] [stderr] Checking prusti-std v0.2.0 [INFO] [stderr] Checking prusti-demo v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: method `len` is never used [INFO] [stdout] --> src/main.rs:21:8 [INFO] [stdout] | [INFO] [stdout] 18 | impl List { [INFO] [stdout] | --------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 21 | fn len(&self) -> usize { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `len` is never used [INFO] [stdout] --> src/main.rs:21:8 [INFO] [stdout] | [INFO] [stdout] 18 | impl List { [INFO] [stdout] | --------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 21 | fn len(&self) -> usize { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.82s [INFO] running `Command { std: "docker" "inspect" "c93695a1fafd28f11c8d6a35d487372fc6ee5333af28da388ac44d605734c355", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c93695a1fafd28f11c8d6a35d487372fc6ee5333af28da388ac44d605734c355", kill_on_drop: false }` [INFO] [stdout] c93695a1fafd28f11c8d6a35d487372fc6ee5333af28da388ac44d605734c355