[INFO] fetching crate num-integer 0.1.45...
[INFO] checking num-integer-0.1.45 against master#020bbe46bdf613c0b8211984eaa8e5fe97d6c92d for pr-122960
[INFO] extracting crate num-integer 0.1.45 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate num-integer 0.1.45 on toolchain 020bbe46bdf613c0b8211984eaa8e5fe97d6c92d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+020bbe46bdf613c0b8211984eaa8e5fe97d6c92d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate num-integer 0.1.45
[INFO] finished tweaking crates.io crate num-integer 0.1.45
[INFO] tweaked toml for crates.io crate num-integer 0.1.45 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+020bbe46bdf613c0b8211984eaa8e5fe97d6c92d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+020bbe46bdf613c0b8211984eaa8e5fe97d6c92d" "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-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_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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+020bbe46bdf613c0b8211984eaa8e5fe97d6c92d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5d0e6920957b9efaafc67ba119460eca8e51237ff40bae2b56fa5ae6ee21eb18
[INFO] running `Command { std: "docker" "start" "-a" "5d0e6920957b9efaafc67ba119460eca8e51237ff40bae2b56fa5ae6ee21eb18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d0e6920957b9efaafc67ba119460eca8e51237ff40bae2b56fa5ae6ee21eb18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d0e6920957b9efaafc67ba119460eca8e51237ff40bae2b56fa5ae6ee21eb18", kill_on_drop: false }`
[INFO] [stdout] 5d0e6920957b9efaafc67ba119460eca8e51237ff40bae2b56fa5ae6ee21eb18
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+020bbe46bdf613c0b8211984eaa8e5fe97d6c92d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7d0de4292d2b958092ab97fdfeebcff69104eff47ebdbd57c238f387ab73646
[INFO] running `Command { std: "docker" "start" "-a" "a7d0de4292d2b958092ab97fdfeebcff69104eff47ebdbd57c238f387ab73646", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling num-integer v0.1.45 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `core` is imported redundantly
[INFO] [stdout]  --> src/roots.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core;
[INFO] [stdout]   |     ^^^^ the item `core` is already imported by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `core` is imported redundantly
[INFO] [stdout]  --> src/roots.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core;
[INFO] [stdout]   |     ^^^^ the item `core` is already imported by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.96s
[INFO] running `Command { std: "docker" "inspect" "a7d0de4292d2b958092ab97fdfeebcff69104eff47ebdbd57c238f387ab73646", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7d0de4292d2b958092ab97fdfeebcff69104eff47ebdbd57c238f387ab73646", kill_on_drop: false }`
[INFO] [stdout] a7d0de4292d2b958092ab97fdfeebcff69104eff47ebdbd57c238f387ab73646