[INFO] fetching crate kademlia 0.1.0...
[INFO] testing kademlia-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate kademlia 0.1.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate kademlia 0.1.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kademlia 0.1.0
[INFO] finished tweaking crates.io crate kademlia 0.1.0
[INFO] tweaked toml for crates.io crate kademlia 0.1.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac56b7869857fdc12af70375ad3b41480bbb4ca09f2cad10fcd79084b98cab72
[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" "ac56b7869857fdc12af70375ad3b41480bbb4ca09f2cad10fcd79084b98cab72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac56b7869857fdc12af70375ad3b41480bbb4ca09f2cad10fcd79084b98cab72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac56b7869857fdc12af70375ad3b41480bbb4ca09f2cad10fcd79084b98cab72", kill_on_drop: false }`
[INFO] [stdout] ac56b7869857fdc12af70375ad3b41480bbb4ca09f2cad10fcd79084b98cab72
[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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6460c0d963e720784acaf49c1127c941bc06467d7074612e6b88ff97da7c7f36
[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" "6460c0d963e720784acaf49c1127c941bc06467d7074612e6b88ff97da7c7f36", kill_on_drop: false }`
[INFO] [stderr]    Compiling kademlia v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rand::OsRng`
[INFO] [stdout]  --> src/number_160.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::OsRng;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `number_160::Number160`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use number_160::Number160;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Number160`
[INFO] [stdout]  --> src/number_160.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Number160 (
[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/number_160.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn new(b : [u8; 20]) -> Number160 {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "6460c0d963e720784acaf49c1127c941bc06467d7074612e6b88ff97da7c7f36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6460c0d963e720784acaf49c1127c941bc06467d7074612e6b88ff97da7c7f36", kill_on_drop: false }`
[INFO] [stdout] 6460c0d963e720784acaf49c1127c941bc06467d7074612e6b88ff97da7c7f36
[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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 42d2780e7961b0c7ad7668e93a156c91a8ab368e47e96b560bbad2e74b805b1b
[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" "42d2780e7961b0c7ad7668e93a156c91a8ab368e47e96b560bbad2e74b805b1b", kill_on_drop: false }`
[INFO] [stderr]    Compiling kademlia v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rand::OsRng`
[INFO] [stdout]  --> src/number_160.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::OsRng;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `number_160::Number160`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use number_160::Number160;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Number160`
[INFO] [stdout]  --> src/number_160.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Number160 (
[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/number_160.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn new(b : [u8; 20]) -> Number160 {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "42d2780e7961b0c7ad7668e93a156c91a8ab368e47e96b560bbad2e74b805b1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42d2780e7961b0c7ad7668e93a156c91a8ab368e47e96b560bbad2e74b805b1b", kill_on_drop: false }`
[INFO] [stdout] 42d2780e7961b0c7ad7668e93a156c91a8ab368e47e96b560bbad2e74b805b1b
[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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ce7c2d2d3de3ebf24fe6a7cec3ac3215ebacf42f511d7fca17482612f50c736f
[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" "ce7c2d2d3de3ebf24fe6a7cec3ac3215ebacf42f511d7fca17482612f50c736f", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `rand::OsRng`
[INFO] [stderr]  --> src/number_160.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use rand::OsRng;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `number_160::Number160`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use number_160::Number160;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Number160`
[INFO] [stderr]  --> src/number_160.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct Number160 (
[INFO] [stderr]   |            ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]  --> src/number_160.rs:9:12
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub fn new(b : [u8; 20]) -> Number160 {
[INFO] [stderr]   |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/kademlia-41b837bd31ec4943
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ce7c2d2d3de3ebf24fe6a7cec3ac3215ebacf42f511d7fca17482612f50c736f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce7c2d2d3de3ebf24fe6a7cec3ac3215ebacf42f511d7fca17482612f50c736f", kill_on_drop: false }`
[INFO] [stdout] ce7c2d2d3de3ebf24fe6a7cec3ac3215ebacf42f511d7fca17482612f50c736f