[INFO] fetching crate usher 0.2.0...
[INFO] checking usher-0.2.0 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate usher 0.2.0 into /workspace/builds/worker-51/source
[INFO] validating manifest of crates.io crate usher 0.2.0 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate usher 0.2.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate usher 0.2.0
[INFO] tweaked toml for crates.io crate usher 0.2.0 written to /workspace/builds/worker-51/source/Cargo.toml
[INFO] crate crates.io crate usher 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8dcf6dc53a768bc12d0ab8799bacf5cc9da4da2384776dcf2a9175651df7165b
[INFO] running `Command { std: "docker" "start" "-a" "8dcf6dc53a768bc12d0ab8799bacf5cc9da4da2384776dcf2a9175651df7165b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8dcf6dc53a768bc12d0ab8799bacf5cc9da4da2384776dcf2a9175651df7165b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8dcf6dc53a768bc12d0ab8799bacf5cc9da4da2384776dcf2a9175651df7165b", kill_on_drop: false }`
[INFO] [stdout] 8dcf6dc53a768bc12d0ab8799bacf5cc9da4da2384776dcf2a9175651df7165b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 84703120636d2bf7e3bca0a4de4a4e0df162951f5aec86102c9d546cab7b1cb3
[INFO] running `Command { std: "docker" "start" "-a" "84703120636d2bf7e3bca0a4de4a4e0df162951f5aec86102c9d546cab7b1cb3", kill_on_drop: false }`
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[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling autocfg v0.1.7
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[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking usher v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tokio-sync v0.1.8
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[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
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[INFO] [stdout] error[E0432]: unresolved import `criterion`
[INFO] [stdout]  --> benches/usher.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use criterion::{criterion_group, criterion_main, Criterion};
[INFO] [stdout]   |     ^^^^^^^^^ use of undeclared crate or module `criterion`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `criterion_group`
[INFO] [stdout]   --> benches/usher.rs:52:1
[INFO] [stdout]    |
[INFO] [stdout] 52 | criterion_group!(benches, benchmark);
[INFO] [stdout]    | ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the macro `criterion_main`
[INFO] [stdout]   --> benches/usher.rs:53:1
[INFO] [stdout]    |
[INFO] [stdout] 53 | criterion_main!(benches);
[INFO] [stdout]    | ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `usher` due to 4 previous errors
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "84703120636d2bf7e3bca0a4de4a4e0df162951f5aec86102c9d546cab7b1cb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84703120636d2bf7e3bca0a4de4a4e0df162951f5aec86102c9d546cab7b1cb3", kill_on_drop: false }`
[INFO] [stdout] 84703120636d2bf7e3bca0a4de4a4e0df162951f5aec86102c9d546cab7b1cb3