[INFO] fetching crate learn-alg 0.1.1... [INFO] checking learn-alg-0.1.1 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604 [INFO] extracting crate learn-alg 0.1.1 into /workspace/builds/worker-2-tc1/source [INFO] validating manifest of crates.io crate learn-alg 0.1.1 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate learn-alg 0.1.1 [INFO] finished tweaking crates.io crate learn-alg 0.1.1 [INFO] tweaked toml for crates.io crate learn-alg 0.1.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate crates.io crate learn-alg 0.1.1 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9b6f8309e39254bf1a21aa1f5db0d3ac50cee2f35a9fc23c819256912d1bc355 [INFO] running `Command { std: "docker" "start" "-a" "9b6f8309e39254bf1a21aa1f5db0d3ac50cee2f35a9fc23c819256912d1bc355", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9b6f8309e39254bf1a21aa1f5db0d3ac50cee2f35a9fc23c819256912d1bc355", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9b6f8309e39254bf1a21aa1f5db0d3ac50cee2f35a9fc23c819256912d1bc355", kill_on_drop: false }` [INFO] [stdout] 9b6f8309e39254bf1a21aa1f5db0d3ac50cee2f35a9fc23c819256912d1bc355 [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c39ac4b72b82553350aac4f58ab307c821b0ef59889e911e4b002d3e3c7b1df0 [INFO] running `Command { std: "docker" "start" "-a" "c39ac4b72b82553350aac4f58ab307c821b0ef59889e911e4b002d3e3c7b1df0", kill_on_drop: false }` [INFO] [stderr] Checking learn-alg v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Ref` [INFO] [stdout] --> src/bin/lru.rs:8:17 [INFO] [stdout] | [INFO] [stdout] 8 | use std::cell::{Ref, RefCell}; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Ref` [INFO] [stdout] --> src/bin/lru.rs:8:17 [INFO] [stdout] | [INFO] [stdout] 8 | use std::cell::{Ref, RefCell}; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Reverse` is never used [INFO] [stdout] --> src/bin/palindrome.rs:2:7 [INFO] [stdout] | [INFO] [stdout] 2 | trait Reverse: PartialEq + Sized { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s [INFO] running `Command { std: "docker" "inspect" "c39ac4b72b82553350aac4f58ab307c821b0ef59889e911e4b002d3e3c7b1df0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c39ac4b72b82553350aac4f58ab307c821b0ef59889e911e4b002d3e3c7b1df0", kill_on_drop: false }` [INFO] [stdout] c39ac4b72b82553350aac4f58ab307c821b0ef59889e911e4b002d3e3c7b1df0