[INFO] fetching crate twistrs 0.3.1-beta...
[INFO] checking twistrs-0.3.1-beta against beta for pr-78714
[INFO] extracting crate twistrs 0.3.1-beta into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate twistrs 0.3.1-beta on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate twistrs 0.3.1-beta
[INFO] finished tweaking crates.io crate twistrs 0.3.1-beta
[INFO] tweaked toml for crates.io crate twistrs 0.3.1-beta written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e09603b5782443757ddc1e53756e1e925251fc7d9536e3d73c8e5ce95f534337
[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" "e09603b5782443757ddc1e53756e1e925251fc7d9536e3d73c8e5ce95f534337", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e09603b5782443757ddc1e53756e1e925251fc7d9536e3d73c8e5ce95f534337", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e09603b5782443757ddc1e53756e1e925251fc7d9536e3d73c8e5ce95f534337", kill_on_drop: false }`
[INFO] [stdout] e09603b5782443757ddc1e53756e1e925251fc7d9536e3d73c8e5ce95f534337
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40523f069918f60cd7040743b511495a8776b7b14b3a254d18a4c58eee70f951
[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" "40523f069918f60cd7040743b511495a8776b7b14b3a254d18a4c58eee70f951", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking ascii_utils v0.9.3
[INFO] [stderr]    Compiling punycode v0.4.1
[INFO] [stderr]     Checking nb-connect v1.0.2
[INFO] [stderr]     Checking hostname v0.1.5
[INFO] [stderr]     Checking polling v2.0.2
[INFO] [stderr]     Checking tracing v0.1.21
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking native-tls v0.2.6
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]     Checking thiserror v1.0.22
[INFO] [stderr]     Checking fancy-regex v0.4.1
[INFO] [stderr]    Compiling phf_macros v0.8.0
[INFO] [stderr]     Checking criterion v0.3.3
[INFO] [stderr]     Checking fast_chemail v0.9.6
[INFO] [stderr]    Compiling twistrs v0.3.1-beta (/opt/rustwide/workdir)
[INFO] [stderr]     Checking async-io v1.2.0
[INFO] [stderr]     Checking publicsuffix v1.5.4
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]     Checking tokio v0.2.23
[INFO] [stderr]     Checking async-global-executor v1.4.3
[INFO] [stderr]     Checking async-std v1.7.0
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking futures-executor v0.3.8
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking futures v0.3.8
[INFO] [stderr]     Checking async-native-tls v0.3.3
[INFO] [stderr]     Checking async-smtp v0.3.4
[INFO] [stderr]     Checking hyper v0.13.9
[INFO] [stdout] warning: use of deprecated struct `enrich::EnrichmentError`: Prone to be removed in the future, does not currently provide any context.
[INFO] [stdout]   --> src/enrich.rs:46:45
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub type Result<T> = std::result::Result<T, EnrichmentError>;
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `enrich::EnrichmentError`: Prone to be removed in the future, does not currently provide any context.
[INFO] [stdout]   --> src/enrich.rs:55:23
[INFO] [stdout]    |
[INFO] [stdout] 55 | impl fmt::Display for EnrichmentError {
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit struct `enrich::EnrichmentError`: Prone to be removed in the future, does not currently provide any context.
[INFO] [stdout]    --> src/enrich.rs:132:27
[INFO] [stdout]     |
[INFO] [stdout] 132 |             Err(_) => Err(EnrichmentError),
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `permutate::PermutationError`: Prone to be removed in the future, does not currently provide any context.
[INFO] [stdout]   --> src/permutate.rs:35:41
[INFO] [stdout]    |
[INFO] [stdout] 35 | type Result<T> = std::result::Result<T, PermutationError>;
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `permutate::PermutationError`: Prone to be removed in the future, does not currently provide any context.
[INFO] [stdout]   --> src/permutate.rs:57:23
[INFO] [stdout]    |
[INFO] [stdout] 57 | impl fmt::Display for PermutationError {
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit struct `permutate::PermutationError`: Prone to be removed in the future, does not currently provide any context.
[INFO] [stdout]   --> src/permutate.rs:80:32
[INFO] [stdout]    |
[INFO] [stdout] 80 |                     return Err(PermutationError);
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit struct `permutate::PermutationError`: Prone to be removed in the future, does not currently provide any context.
[INFO] [stdout]   --> src/permutate.rs:89:27
[INFO] [stdout]    |
[INFO] [stdout] 89 |             Err(_) => Err(PermutationError),
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `enrich::EnrichmentError`: Prone to be removed in the future, does not currently provide any context.
[INFO] [stdout]   --> src/enrich.rs:46:45
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub type Result<T> = std::result::Result<T, EnrichmentError>;
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `enrich::EnrichmentError`: Prone to be removed in the future, does not currently provide any context.
[INFO] [stdout]   --> src/enrich.rs:55:23
[INFO] [stdout]    |
[INFO] [stdout] 55 | impl fmt::Display for EnrichmentError {
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit struct `enrich::EnrichmentError`: Prone to be removed in the future, does not currently provide any context.
[INFO] [stdout]    --> src/enrich.rs:132:27
[INFO] [stdout]     |
[INFO] [stdout] 132 |             Err(_) => Err(EnrichmentError),
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `permutate::PermutationError`: Prone to be removed in the future, does not currently provide any context.
[INFO] [stdout]   --> src/permutate.rs:35:41
[INFO] [stdout]    |
[INFO] [stdout] 35 | type Result<T> = std::result::Result<T, PermutationError>;
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `permutate::PermutationError`: Prone to be removed in the future, does not currently provide any context.
[INFO] [stdout]   --> src/permutate.rs:57:23
[INFO] [stdout]    |
[INFO] [stdout] 57 | impl fmt::Display for PermutationError {
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit struct `permutate::PermutationError`: Prone to be removed in the future, does not currently provide any context.
[INFO] [stdout]   --> src/permutate.rs:80:32
[INFO] [stdout]    |
[INFO] [stdout] 80 |                     return Err(PermutationError);
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated unit struct `permutate::PermutationError`: Prone to be removed in the future, does not currently provide any context.
[INFO] [stdout]   --> src/permutate.rs:89:27
[INFO] [stdout]    |
[INFO] [stdout] 89 |             Err(_) => Err(PermutationError),
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.57s
[INFO] running `Command { std: "docker" "inspect" "40523f069918f60cd7040743b511495a8776b7b14b3a254d18a4c58eee70f951", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40523f069918f60cd7040743b511495a8776b7b14b3a254d18a4c58eee70f951", kill_on_drop: false }`
[INFO] [stdout] 40523f069918f60cd7040743b511495a8776b7b14b3a254d18a4c58eee70f951