[INFO] fetching crate libp3p 0.0.0...
[INFO] checking libp3p-0.0.0 against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] extracting crate libp3p 0.0.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate libp3p 0.0.0 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 libp3p 0.0.0
[INFO] finished tweaking crates.io crate libp3p 0.0.0
[INFO] tweaked toml for crates.io crate libp3p 0.0.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bacteria v0.0.8
[INFO] [stderr]   Downloaded num-bigint-dig v0.4.0
[INFO] [stderr]   Downloaded futures-timer v1.0.3
[INFO] [stderr]   Downloaded balloon v0.0.10
[INFO] [stderr]   Downloaded async-macros v1.0.0
[INFO] [stderr]   Downloaded mohan v0.0.53
[INFO] [stderr]   Downloaded async-std v0.99.12
[INFO] [stderr]   Downloaded schnorr v0.0.20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 93a238b68d36aa1f380974c8e5854698ba1226c70b65201e205870ce645b6894
[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" "93a238b68d36aa1f380974c8e5854698ba1226c70b65201e205870ce645b6894", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93a238b68d36aa1f380974c8e5854698ba1226c70b65201e205870ce645b6894", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93a238b68d36aa1f380974c8e5854698ba1226c70b65201e205870ce645b6894", kill_on_drop: false }`
[INFO] [stdout] 93a238b68d36aa1f380974c8e5854698ba1226c70b65201e205870ce645b6894
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d94906203431d452b7dc5d454fe8a344b765156b92350b9b9bd8ae29ec88cbe
[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" "0d94906203431d452b7dc5d454fe8a344b765156b92350b9b9bd8ae29ec88cbe", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]    Compiling packed_simd v0.3.3
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking subtle v2.2.3
[INFO] [stderr]     Checking either v1.6.0
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling num-bigint-dig v0.4.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]     Checking pin-project-lite v0.1.7
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling rayon v1.4.0
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]     Checking rand_core v0.3.1
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[INFO] [stderr]     Checking rand_jitter v0.1.4
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[INFO] [stderr]     Checking futures-timer v1.0.3
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[INFO] [stderr]     Checking rand_xorshift v0.1.1
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[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking thread-id v3.3.0
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[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking async-std v0.99.12
[INFO] [stderr]     Checking rayon-core v1.8.0
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking quickcheck v0.8.5
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling zeroize_derive v1.0.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]     Checking zeroize v1.1.0
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking hashbrown v0.5.0
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking curve25519-dalek v2.1.0
[INFO] [stderr]     Checking mohan v0.0.53
[INFO] [stderr]     Checking bacteria v0.0.8
[INFO] [stderr]     Checking balloon v0.0.10
[INFO] [stderr]     Checking schnorr v0.0.20
[INFO] [stderr]     Checking libp3p v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `schnorr::PublicKey`
[INFO] [stdout]  --> src/id.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use schnorr::PublicKey;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `balloon::balloon`
[INFO] [stdout]  --> src/id.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use balloon::balloon;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `blake256`
[INFO] [stdout]   --> src/id.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     blake256,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `FromIterator`, `self`
[INFO] [stdout]  --> src/extra.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::iter::{self, FromIterator};
[INFO] [stdout]   |                 ^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SocketAddr`
[INFO] [stdout]  --> src/extra.rs:4:30
[INFO] [stdout]   |
[INFO] [stdout] 4 | use async_std::net::{IpAddr, SocketAddr};
[INFO] [stdout]   |                              ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `schnorr::PublicKey`
[INFO] [stdout]  --> src/id.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use schnorr::PublicKey;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `balloon::balloon`
[INFO] [stdout]  --> src/id.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use balloon::balloon;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `blake256`
[INFO] [stdout]   --> src/id.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     blake256,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `FromIterator`, `self`
[INFO] [stdout]  --> src/extra.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::iter::{self, FromIterator};
[INFO] [stdout]   |                 ^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SocketAddr`
[INFO] [stdout]  --> src/extra.rs:4:30
[INFO] [stdout]   |
[INFO] [stdout] 4 | use async_std::net::{IpAddr, SocketAddr};
[INFO] [stdout]   |                              ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_reachable`
[INFO] [stdout]  --> src/extra.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn is_reachable(ip: IpAddr) -> bool {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/peer.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn new(id: NetworkID) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `g`
[INFO] [stdout]   --> src/id.rs:38:30
[INFO] [stdout]    |
[INFO] [stdout] 38 |         fn arbitrary<G: Gen>(g: &mut G) -> Self {
[INFO] [stdout]    |                              ^ help: if this is intentional, prefix it with an underscore: `_g`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/id.rs:39:17
[INFO] [stdout]    |
[INFO] [stdout] 39 |             let mut bytes = [0; 32];
[INFO] [stdout]    |                 ----^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_reachable`
[INFO] [stdout]  --> src/extra.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn is_reachable(ip: IpAddr) -> bool {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/peer.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn new(id: NetworkID) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 28s
[INFO] running `Command { std: "docker" "inspect" "0d94906203431d452b7dc5d454fe8a344b765156b92350b9b9bd8ae29ec88cbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d94906203431d452b7dc5d454fe8a344b765156b92350b9b9bd8ae29ec88cbe", kill_on_drop: false }`
[INFO] [stdout] 0d94906203431d452b7dc5d454fe8a344b765156b92350b9b9bd8ae29ec88cbe