[INFO] fetching crate frust 0.0.7...
[INFO] testing frust-0.0.7 against try#1b74e096b9bfb06f84a3007193dcd2f059cbdf6a for pr-96025
[INFO] extracting crate frust 0.0.7 into /workspace/builds/worker-60/source
[INFO] validating manifest of crates.io crate frust 0.0.7 on toolchain 1b74e096b9bfb06f84a3007193dcd2f059cbdf6a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1b74e096b9bfb06f84a3007193dcd2f059cbdf6a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate frust 0.0.7
[INFO] finished tweaking crates.io crate frust 0.0.7
[INFO] tweaked toml for crates.io crate frust 0.0.7 written to /workspace/builds/worker-60/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1b74e096b9bfb06f84a3007193dcd2f059cbdf6a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1b74e096b9bfb06f84a3007193dcd2f059cbdf6a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1b74e096b9bfb06f84a3007193dcd2f059cbdf6a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a0cd3a03cf2cda9cae827212b9b2ca8931a122a202433809d86841bdc6aff629
[INFO] running `Command { std: "docker" "start" "-a" "a0cd3a03cf2cda9cae827212b9b2ca8931a122a202433809d86841bdc6aff629", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a0cd3a03cf2cda9cae827212b9b2ca8931a122a202433809d86841bdc6aff629", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0cd3a03cf2cda9cae827212b9b2ca8931a122a202433809d86841bdc6aff629", kill_on_drop: false }`
[INFO] [stdout] a0cd3a03cf2cda9cae827212b9b2ca8931a122a202433809d86841bdc6aff629
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1b74e096b9bfb06f84a3007193dcd2f059cbdf6a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 767b0c55c61aa9eb64d1f3ee6272ee39b94d2ab7810996dadb78b076ee97fa2b
[INFO] running `Command { std: "docker" "start" "-a" "767b0c55c61aa9eb64d1f3ee6272ee39b94d2ab7810996dadb78b076ee97fa2b", kill_on_drop: false }`
[INFO] [stderr]    Compiling frust v0.0.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `Command { std: "docker" "inspect" "767b0c55c61aa9eb64d1f3ee6272ee39b94d2ab7810996dadb78b076ee97fa2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "767b0c55c61aa9eb64d1f3ee6272ee39b94d2ab7810996dadb78b076ee97fa2b", kill_on_drop: false }`
[INFO] [stdout] 767b0c55c61aa9eb64d1f3ee6272ee39b94d2ab7810996dadb78b076ee97fa2b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1b74e096b9bfb06f84a3007193dcd2f059cbdf6a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d000b96d65b0401f16ea3b7a11aabf661ab94a64736e86198106d6405a531ac1
[INFO] running `Command { std: "docker" "start" "-a" "d000b96d65b0401f16ea3b7a11aabf661ab94a64736e86198106d6405a531ac1", kill_on_drop: false }`
[INFO] [stderr]    Compiling frust v0.0.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::*`
[INFO] [stdout]    --> src/semigroup.rs:313:9
[INFO] [stdout]     |
[INFO] [stdout] 313 |     use std::collections::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::*`
[INFO] [stdout]    --> src/semigroup.rs:314:9
[INFO] [stdout]     |
[INFO] [stdout] 314 |     use std::cell::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::*`
[INFO] [stdout]    --> src/monoid.rs:226:9
[INFO] [stdout]     |
[INFO] [stdout] 226 |     use std::collections::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 9.60s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/frust-fcb787f5b7dcdad4)
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "d000b96d65b0401f16ea3b7a11aabf661ab94a64736e86198106d6405a531ac1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d000b96d65b0401f16ea3b7a11aabf661ab94a64736e86198106d6405a531ac1", kill_on_drop: false }`
[INFO] [stdout] d000b96d65b0401f16ea3b7a11aabf661ab94a64736e86198106d6405a531ac1