[INFO] fetching crate usher 0.2.0...
[INFO] checking usher-0.2.0 against beta-2021-10-15 for beta-1.56-3
[INFO] extracting crate usher 0.2.0 into /workspace/builds/worker-96/source
[INFO] validating manifest of crates.io crate usher 0.2.0 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "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-96/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" "+beta-2021-10-15" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]   Downloaded lock_api v0.3.3
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[INFO] [stderr]   Downloaded crossbeam-deque v0.7.2
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[INFO] [stderr]   Downloaded crossbeam-epoch v0.8.0
[INFO] [stderr]   Downloaded mio v0.6.21
[INFO] [stderr]   Downloaded libc v0.2.67
[INFO] [stderr]   Downloaded crossbeam-utils v0.7.0
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[INFO] [stderr]   Downloaded indexmap v1.3.2
[INFO] [stderr]   Downloaded num_cpus v1.12.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 18600f8d140241774e6ce78d330bf667bebbe3d1d79367f7aed28e57e792906d
[INFO] running `Command { std: "docker" "start" "-a" "18600f8d140241774e6ce78d330bf667bebbe3d1d79367f7aed28e57e792906d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18600f8d140241774e6ce78d330bf667bebbe3d1d79367f7aed28e57e792906d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18600f8d140241774e6ce78d330bf667bebbe3d1d79367f7aed28e57e792906d", kill_on_drop: false }`
[INFO] [stdout] 18600f8d140241774e6ce78d330bf667bebbe3d1d79367f7aed28e57e792906d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6ca2d86f5b05bcf4a3eb56fa287214b9f1a5f74f8003b37de7c2b7809cc710e
[INFO] running `Command { std: "docker" "start" "-a" "b6ca2d86f5b05bcf4a3eb56fa287214b9f1a5f74f8003b37de7c2b7809cc710e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]     Checking futures v0.1.29
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking either v1.5.3
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[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking try-lock v0.2.2
[INFO] [stderr]     Checking usher v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]     Checking lock_api v0.3.3
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking net2 v0.2.33
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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] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `usher` due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "b6ca2d86f5b05bcf4a3eb56fa287214b9f1a5f74f8003b37de7c2b7809cc710e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6ca2d86f5b05bcf4a3eb56fa287214b9f1a5f74f8003b37de7c2b7809cc710e", kill_on_drop: false }`
[INFO] [stdout] b6ca2d86f5b05bcf4a3eb56fa287214b9f1a5f74f8003b37de7c2b7809cc710e
