[INFO] fetching crate imprint 0.2.0...
[INFO] testing imprint-0.2.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate imprint 0.2.0 into /workspace/builds/worker-29/source
[INFO] validating manifest of crates.io crate imprint 0.2.0 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate imprint 0.2.0
[INFO] finished tweaking crates.io crate imprint 0.2.0
[INFO] tweaked toml for crates.io crate imprint 0.2.0 written to /workspace/builds/worker-29/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b797975da169188703c1f1d66758e44486afa9cf133541963d8ffc15babf1579
[INFO] running `Command { std: "docker" "start" "-a" "b797975da169188703c1f1d66758e44486afa9cf133541963d8ffc15babf1579", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b797975da169188703c1f1d66758e44486afa9cf133541963d8ffc15babf1579", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b797975da169188703c1f1d66758e44486afa9cf133541963d8ffc15babf1579", kill_on_drop: false }`
[INFO] [stdout] b797975da169188703c1f1d66758e44486afa9cf133541963d8ffc15babf1579
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b334507bd045d8ef7c5485cff7af0078527a052871b903afada1e710c6d57efd
[INFO] running `Command { std: "docker" "start" "-a" "b334507bd045d8ef7c5485cff7af0078527a052871b903afada1e710c6d57efd", kill_on_drop: false }`
[INFO] [stderr]    Compiling imprint v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `mem` is imported redundantly
[INFO] [stdout]    --> src/lib.rs:427:19
[INFO] [stdout]     |
[INFO] [stdout] 22  | use std::{fmt, mem};
[INFO] [stdout]     |                --- the item `mem` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 427 |         use std::{mem, ptr};
[INFO] [stdout]     |                   ^^^
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "b334507bd045d8ef7c5485cff7af0078527a052871b903afada1e710c6d57efd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b334507bd045d8ef7c5485cff7af0078527a052871b903afada1e710c6d57efd", kill_on_drop: false }`
[INFO] [stdout] b334507bd045d8ef7c5485cff7af0078527a052871b903afada1e710c6d57efd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 955bce050573036b6f104e96ab3ab3bb2768d3565a9238c4a0386e9f800fa764
[INFO] running `Command { std: "docker" "start" "-a" "955bce050573036b6f104e96ab3ab3bb2768d3565a9238c4a0386e9f800fa764", kill_on_drop: false }`
[INFO] [stderr]    Compiling imprint v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `mem` is imported redundantly
[INFO] [stdout]    --> src/lib.rs:427:19
[INFO] [stdout]     |
[INFO] [stdout] 22  | use std::{fmt, mem};
[INFO] [stdout]     |                --- the item `mem` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 427 |         use std::{mem, ptr};
[INFO] [stdout]     |                   ^^^
[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: the item `mem` is imported redundantly
[INFO] [stdout]    --> src/lib.rs:427:19
[INFO] [stdout]     |
[INFO] [stdout] 22  | use std::{fmt, mem};
[INFO] [stdout]     |                --- the item `mem` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 427 |         use std::{mem, ptr};
[INFO] [stdout]     |                   ^^^
[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] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `Command { std: "docker" "inspect" "955bce050573036b6f104e96ab3ab3bb2768d3565a9238c4a0386e9f800fa764", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "955bce050573036b6f104e96ab3ab3bb2768d3565a9238c4a0386e9f800fa764", kill_on_drop: false }`
[INFO] [stdout] 955bce050573036b6f104e96ab3ab3bb2768d3565a9238c4a0386e9f800fa764
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 02f58c2ce8670a50a884f6eec54b5c41c95e9a4ab6f1e5b8e398728055bb112d
[INFO] running `Command { std: "docker" "start" "-a" "02f58c2ce8670a50a884f6eec54b5c41c95e9a4ab6f1e5b8e398728055bb112d", kill_on_drop: false }`
[INFO] [stderr] warning: the item `mem` is imported redundantly
[INFO] [stderr]    --> src/lib.rs:427:19
[INFO] [stderr]     |
[INFO] [stderr] 22  | use std::{fmt, mem};
[INFO] [stderr]     |                --- the item `mem` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 427 |         use std::{mem, ptr};
[INFO] [stderr]     |                   ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `imprint` (lib) generated 1 warning
[INFO] [stderr] warning: `imprint` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/imprint-0cf9d4cd1ad557d2)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test arith::tests::it_works ... ok
[INFO] [stdout] test ix::tests::it_works ... ok
[INFO] [stderr]    Doc-tests imprint
[INFO] [stdout] test tests::exists ... ok
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/lib.rs - TyEq<T,U>::apply (line 230) ... ok
[INFO] [stdout] test src/lib.rs - IdF (line 340) ... ok
[INFO] [stdout] test src/lib.rs - imprint (line 49) ... ok
[INFO] [stdout] test src/lib.rs - Exists (line 390) ... ok
[INFO] [stdout] test src/lib.rs - imprint (line 57) ... ok
[INFO] [stdout] test src/lib.rs - TyEq<T,U>::apply (line 241) ... ok
[INFO] [stdout] test src/lib.rs - TyEq (line 177) ... ok
[INFO] [stdout] test src/lib.rs - TyFn (line 322) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.30s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "02f58c2ce8670a50a884f6eec54b5c41c95e9a4ab6f1e5b8e398728055bb112d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02f58c2ce8670a50a884f6eec54b5c41c95e9a4ab6f1e5b8e398728055bb112d", kill_on_drop: false }`
[INFO] [stdout] 02f58c2ce8670a50a884f6eec54b5c41c95e9a4ab6f1e5b8e398728055bb112d