[INFO] fetching crate noise-gate 0.1.0...
[INFO] checking noise-gate-0.1.0 against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] extracting crate noise-gate 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate noise-gate 0.1.0 on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate noise-gate 0.1.0
[INFO] finished tweaking crates.io crate noise-gate 0.1.0
[INFO] tweaked toml for crates.io crate noise-gate 0.1.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate noise-gate 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f2bef120f0673ab1d9e62ca2236ce6559fea4848d85b53d688a1741bbcea35ce
[INFO] running `Command { std: "docker" "start" "-a" "f2bef120f0673ab1d9e62ca2236ce6559fea4848d85b53d688a1741bbcea35ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f2bef120f0673ab1d9e62ca2236ce6559fea4848d85b53d688a1741bbcea35ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2bef120f0673ab1d9e62ca2236ce6559fea4848d85b53d688a1741bbcea35ce", kill_on_drop: false }`
[INFO] [stdout] f2bef120f0673ab1d9e62ca2236ce6559fea4848d85b53d688a1741bbcea35ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d95cb1b2e3cfd8cb6ea9b30152e97abc54d313860e21c81c433a96e12bca369
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9d95cb1b2e3cfd8cb6ea9b30152e97abc54d313860e21c81c433a96e12bca369", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling syn v1.0.6
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]    Compiling rayon-core v1.6.0
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]     Checking same-file v1.0.5
[INFO] [stderr]     Checking sample v0.10.0
[INFO] [stderr]     Checking hound v3.4.0
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]     Checking walkdir v2.2.9
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking criterion-plot v0.4.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking rand_xoshiro v0.3.1
[INFO] [stderr]     Checking rand_os v0.2.2
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking tinytemplate v1.0.2
[INFO] [stderr]     Checking rayon v1.2.0
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]     Checking noise-gate v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]    Compiling structopt-derive v0.3.3
[INFO] [stderr]     Checking structopt v0.3.3
[INFO] [stderr]     Checking criterion v0.3.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 59.31s
[INFO] running `Command { std: "docker" "inspect" "9d95cb1b2e3cfd8cb6ea9b30152e97abc54d313860e21c81c433a96e12bca369", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d95cb1b2e3cfd8cb6ea9b30152e97abc54d313860e21c81c433a96e12bca369", kill_on_drop: false }`
[INFO] [stdout] 9d95cb1b2e3cfd8cb6ea9b30152e97abc54d313860e21c81c433a96e12bca369