[INFO] fetching crate serde_bencode 0.2.3...
[INFO] testing serde_bencode-0.2.3 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate serde_bencode 0.2.3 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate serde_bencode 0.2.3 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_bencode 0.2.3
[INFO] finished tweaking crates.io crate serde_bencode 0.2.3
[INFO] tweaked toml for crates.io crate serde_bencode 0.2.3 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate serde_bencode 0.2.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f646c32edd1e8c7368c71bd2b15f2d7d75fbc0b752cda56652ec51bfe0793dbb
[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" "f646c32edd1e8c7368c71bd2b15f2d7d75fbc0b752cda56652ec51bfe0793dbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f646c32edd1e8c7368c71bd2b15f2d7d75fbc0b752cda56652ec51bfe0793dbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f646c32edd1e8c7368c71bd2b15f2d7d75fbc0b752cda56652ec51bfe0793dbb", kill_on_drop: false }`
[INFO] [stdout] f646c32edd1e8c7368c71bd2b15f2d7d75fbc0b752cda56652ec51bfe0793dbb
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d68ceceb62877ea5c2849ad48a0db813fc5eb91af4e2f2d4141699b3968c197
[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" "4d68ceceb62877ea5c2849ad48a0db813fc5eb91af4e2f2d4141699b3968c197", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_bytes v0.11.5
[INFO] [stderr]    Compiling serde_bencode v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `Command { std: "docker" "inspect" "4d68ceceb62877ea5c2849ad48a0db813fc5eb91af4e2f2d4141699b3968c197", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d68ceceb62877ea5c2849ad48a0db813fc5eb91af4e2f2d4141699b3968c197", kill_on_drop: false }`
[INFO] [stdout] 4d68ceceb62877ea5c2849ad48a0db813fc5eb91af4e2f2d4141699b3968c197
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 38a14cd9c9805d56dd481b29a606780c2665be6858082a9b5fe1308f99559f67
[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" "38a14cd9c9805d56dd481b29a606780c2665be6858082a9b5fe1308f99559f67", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling serde_bencode v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Deserialize`
[INFO] [stdout]  --> tests/tests.rs:8:24
[INFO] [stdout]   |
[INFO] [stdout] 8 | use serde::{Serialize, Deserialize};
[INFO] [stdout]   |                        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> tests/tests.rs:168:6
[INFO] [stdout]     |
[INFO] [stdout] 168 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> tests/tests.rs:183:6
[INFO] [stdout]     |
[INFO] [stdout] 183 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> tests/tests.rs:202:6
[INFO] [stdout]     |
[INFO] [stdout] 202 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> tests/tests.rs:232:6
[INFO] [stdout]     |
[INFO] [stdout] 232 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> tests/tests.rs:251:6
[INFO] [stdout]     |
[INFO] [stdout] 251 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> tests/tests.rs:308:6
[INFO] [stdout]     |
[INFO] [stdout] 308 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> tests/tests.rs:322:6
[INFO] [stdout]     |
[INFO] [stdout] 322 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> tests/tests.rs:333:6
[INFO] [stdout]     |
[INFO] [stdout] 333 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> tests/tests.rs:344:6
[INFO] [stdout]     |
[INFO] [stdout] 344 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> tests/tests.rs:355:6
[INFO] [stdout]     |
[INFO] [stdout] 355 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pieces`
[INFO] [stdout]   --> examples/parse_torrent.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pieces: ByteBuf,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `length`
[INFO] [stdout]   --> examples/parse_torrent.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     length: Option<i64>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 21.04s
[INFO] running `Command { std: "docker" "inspect" "38a14cd9c9805d56dd481b29a606780c2665be6858082a9b5fe1308f99559f67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38a14cd9c9805d56dd481b29a606780c2665be6858082a9b5fe1308f99559f67", kill_on_drop: false }`
[INFO] [stdout] 38a14cd9c9805d56dd481b29a606780c2665be6858082a9b5fe1308f99559f67
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 59454b6bf82d9730b7ef33c1fb37e4f32fd9045bb15de3dea5b4408386bbf263
[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" "59454b6bf82d9730b7ef33c1fb37e4f32fd9045bb15de3dea5b4408386bbf263", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `pieces`
[INFO] [stderr]   --> examples/parse_torrent.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pieces: ByteBuf,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `length`
[INFO] [stderr]   --> examples/parse_torrent.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     length: Option<i64>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Deserialize`
[INFO] [stderr]  --> tests/tests.rs:8:24
[INFO] [stderr]   |
[INFO] [stderr] 8 | use serde::{Serialize, Deserialize};
[INFO] [stderr]   |                        ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> tests/tests.rs:168:6
[INFO] [stderr]     |
[INFO] [stderr] 168 |     };
[INFO] [stderr]     |      ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> tests/tests.rs:183:6
[INFO] [stderr]     |
[INFO] [stderr] 183 |     };
[INFO] [stderr]     |      ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> tests/tests.rs:202:6
[INFO] [stderr]     |
[INFO] [stderr] 202 |     };
[INFO] [stderr]     |      ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> tests/tests.rs:232:6
[INFO] [stderr]     |
[INFO] [stderr] 232 |     };
[INFO] [stderr]     |      ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> tests/tests.rs:251:6
[INFO] [stderr]     |
[INFO] [stderr] 251 |     };
[INFO] [stderr]     |      ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> tests/tests.rs:308:6
[INFO] [stderr]     |
[INFO] [stderr] 308 |     };
[INFO] [stderr]     |      ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> tests/tests.rs:322:6
[INFO] [stderr]     |
[INFO] [stderr] 322 |     };
[INFO] [stderr]     |      ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> tests/tests.rs:333:6
[INFO] [stderr]     |
[INFO] [stderr] 333 |     };
[INFO] [stderr]     |      ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> tests/tests.rs:344:6
[INFO] [stderr]     |
[INFO] [stderr] 344 |     };
[INFO] [stderr]     |      ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> tests/tests.rs:355:6
[INFO] [stderr]     |
[INFO] [stderr] 355 |     };
[INFO] [stderr]     |      ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: `serde_bencode` (example "parse_torrent") generated 2 warnings
[INFO] [stderr] warning: `serde_bencode` (test "tests") generated 11 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/serde_bencode-f77175765e83c570)
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running tests/tests.rs (/opt/rustwide/target/debug/deps/tests-b18762001efc830c)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 36 tests
[INFO] [stdout] test deserialize_to_i64 ... ok
[INFO] [stdout] test deserialize_to_string ... ok
[INFO] [stdout] test deserialize_to_value_struct_mix ... ok
[INFO] [stdout] test deserialize_to_vec ... ok
[INFO] [stdout] test deserialize_to_struct_with_option ... ok
[INFO] [stdout] test readme_value_example ... ok
[INFO] [stdout] test multi_digit_string_length ... ok
[INFO] [stdout] test ser_de_int ... ok
[INFO] [stdout] test ser_de_map_value_mixed ... ok
[INFO] [stdout] test serialize_lexical_sorted_keys ... ok
[INFO] [stdout] test serialize_i64 ... ok
[INFO] [stdout] test ser_de_value_list_mixed ... ok
[INFO] [stdout] test ser_de_string ... ok
[INFO] [stdout] test ser_de_value_list_nested ... ok
[INFO] [stdout] test deserialize_to_value ... ok
[INFO] [stdout] test ser_de_value_map ... ok
[INFO] [stdout] test serialize_ascii_char ... ok
[INFO] [stdout] test deserialize_to_struct ... ok
[INFO] [stdout] test serialize_str ... ok
[INFO] [stdout] test serialize_newtype_struct ... ok
[INFO] [stdout] test ser_de_variant_newtype ... ok
[INFO] [stdout] test deserialize_to_freestyle ... ok
[INFO] [stdout] test serialize_struct ... ok
[INFO] [stdout] test trailing_chars ... ignored
[INFO] [stdout] test ser_de_variant_struct ... ok
[INFO] [stdout] test ser_de_variant_tuple ... ok
[INFO] [stdout] test ser_de_variant_unit ... ok
[INFO] [stdout] test serialize_uncode_char ... ok
[INFO] [stdout] test stop_short ... ok
[INFO] [stdout] test test_to_bytes ... ok
[INFO] [stdout] test serialize_tuple_struct ... ok
[INFO] [stdout] test serialize_tuple ... ok
[INFO] [stdout] test serialize_some ... ok
[INFO] [stdout] test serialize_none ... ok
[INFO] [stdout] test struct_none_vals ... ok
[INFO] [stdout] test serialize_bool ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 35 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests serde_bencode
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/ser.rs - ser::to_string (line 371) ... ok
[INFO] [stdout] test src/de.rs - de::from_str (line 282) ... ok
[INFO] [stdout] test src/de.rs - de::from_bytes (line 320) ... ok
[INFO] [stdout] test src/ser.rs - ser::to_bytes (line 334) ... ok
[INFO] [stdout] test src/lib.rs - (line 6) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.28s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "59454b6bf82d9730b7ef33c1fb37e4f32fd9045bb15de3dea5b4408386bbf263", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59454b6bf82d9730b7ef33c1fb37e4f32fd9045bb15de3dea5b4408386bbf263", kill_on_drop: false }`
[INFO] [stdout] 59454b6bf82d9730b7ef33c1fb37e4f32fd9045bb15de3dea5b4408386bbf263