[INFO] fetching crate adler2 2.0.1...
[INFO] checking adler2-2.0.1 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate adler2 2.0.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate adler2 2.0.1
[INFO] finished tweaking crates.io crate adler2 2.0.1
[INFO] tweaked toml for crates.io crate adler2 2.0.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate adler2 2.0.1 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate adler2 2.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7de46250584b11c31029151aa694c4e65eaa8d67a0b89657bbfa7708b7ba83ca
[INFO] running `Command { std: "docker" "start" "-a" "7de46250584b11c31029151aa694c4e65eaa8d67a0b89657bbfa7708b7ba83ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7de46250584b11c31029151aa694c4e65eaa8d67a0b89657bbfa7708b7ba83ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7de46250584b11c31029151aa694c4e65eaa8d67a0b89657bbfa7708b7ba83ca", kill_on_drop: false }`
[INFO] [stdout] 7de46250584b11c31029151aa694c4e65eaa8d67a0b89657bbfa7708b7ba83ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9073a1051f6db9090d26bcd1c0e224eee90a8438a9db88cfb8dea637caae6dea
[INFO] running `Command { std: "docker" "start" "-a" "9073a1051f6db9090d26bcd1c0e224eee90a8438a9db88cfb8dea637caae6dea", kill_on_drop: false }`
[INFO] [stderr]     Checking adler2 v2.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `criterion`
[INFO] [stdout]  --> benches/bench.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate criterion;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `bench`
[INFO] [stdout]    --> benches/bench.rs:109:26
[INFO] [stdout]     |
[INFO] [stdout] 109 | criterion_main!(benches);
[INFO] [stdout]     |                          ^ consider adding a `main` function to `benches/bench.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0463, E0601.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `adler2` (bench "bench") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "9073a1051f6db9090d26bcd1c0e224eee90a8438a9db88cfb8dea637caae6dea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9073a1051f6db9090d26bcd1c0e224eee90a8438a9db88cfb8dea637caae6dea", kill_on_drop: false }`
[INFO] [stdout] 9073a1051f6db9090d26bcd1c0e224eee90a8438a9db88cfb8dea637caae6dea