[INFO] fetching crate assertor 0.0.2...
[INFO] checking assertor-0.0.2 against master#b0696a5160711c068cb1f01b7437db7990d15750 for pr-121848
[INFO] extracting crate assertor 0.0.2 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate assertor 0.0.2 on toolchain b0696a5160711c068cb1f01b7437db7990d15750
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate assertor 0.0.2
[INFO] finished tweaking crates.io crate assertor 0.0.2
[INFO] tweaked toml for crates.io crate assertor 0.0.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+b0696a5160711c068cb1f01b7437db7990d15750" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5e97665e0e4955e0963dba30aec367f0a45e513bf9fd888df40289a599657856
[INFO] running `Command { std: "docker" "start" "-a" "5e97665e0e4955e0963dba30aec367f0a45e513bf9fd888df40289a599657856", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e97665e0e4955e0963dba30aec367f0a45e513bf9fd888df40289a599657856", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e97665e0e4955e0963dba30aec367f0a45e513bf9fd888df40289a599657856", kill_on_drop: false }`
[INFO] [stdout] 5e97665e0e4955e0963dba30aec367f0a45e513bf9fd888df40289a599657856
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+b0696a5160711c068cb1f01b7437db7990d15750" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca2d2529920d43f5d95b5b9968fc4ab853ae760b47cd50b0b3357fd639833301
[INFO] running `Command { std: "docker" "start" "-a" "ca2d2529920d43f5d95b5b9968fc4ab853ae760b47cd50b0b3357fd639833301", kill_on_drop: false }`
[INFO] [stderr]     Checking assertor v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Fact` is imported redundantly
[INFO] [stdout]    --> src/assertions/map.rs:183:42
[INFO] [stdout]     |
[INFO] [stdout] 182 |     use crate::testing::*;
[INFO] [stdout]     |         ----------------- the item `Fact` is already imported here
[INFO] [stdout] 183 |     use crate::{assert_that, check_that, Fact, IteratorAssertion, SetAssertion};
[INFO] [stdout]     |                                          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FromIterator` is imported redundantly
[INFO] [stdout]    --> src/assertions/set.rs:137:9
[INFO] [stdout]     |
[INFO] [stdout] 137 |     use std::iter::FromIterator;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    --> /rustc/b0696a5160711c068cb1f01b7437db7990d15750/library/std/src/prelude/mod.rs:129:13
[INFO] [stdout]     |
[INFO] [stdout]     = note: the item `FromIterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "ca2d2529920d43f5d95b5b9968fc4ab853ae760b47cd50b0b3357fd639833301", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca2d2529920d43f5d95b5b9968fc4ab853ae760b47cd50b0b3357fd639833301", kill_on_drop: false }`
[INFO] [stdout] ca2d2529920d43f5d95b5b9968fc4ab853ae760b47cd50b0b3357fd639833301
