[INFO] cloning repository https://github.com/Unary-Byte-Software/Composition
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Unary-Byte-Software/Composition" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUnary-Byte-Software%2FComposition", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUnary-Byte-Software%2FComposition'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 25cb7d75fc53dd108a2b47809b793fd45b1f096e
[INFO] checking Unary-Byte-Software/Composition against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUnary-Byte-Software%2FComposition" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Unary-Byte-Software/Composition on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Unary-Byte-Software/Composition
[INFO] finished tweaking git repo https://github.com/Unary-Byte-Software/Composition
[INFO] tweaked toml for git repo https://github.com/Unary-Byte-Software/Composition written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Unary-Byte-Software/Composition already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded adler32 v1.1.0
[INFO] [stderr]   Downloaded error-chain v0.12.2
[INFO] [stderr]   Downloaded addr2line v0.12.2
[INFO] [stderr]   Downloaded backtrace v0.3.49
[INFO] [stderr]   Downloaded libz-sys v1.0.25
[INFO] [stderr]   Downloaded curl-sys v0.4.32+curl-7.70.0
[INFO] [stderr]   Downloaded netbuf v0.4.1
[INFO] [stderr]   Downloaded mojang-api v0.6.1
[INFO] [stderr]   Downloaded adler v0.2.2
[INFO] [stderr]   Downloaded ozelot v0.9.0
[INFO] [stderr]   Downloaded curl v0.4.30
[INFO] [stderr]   Downloaded radix64 v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "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] 68776f9bce5e4b06c85694e128c814a23771fc3ab4dd28737229ad9bde833fd7
[INFO] running `Command { std: "docker" "start" "-a" "68776f9bce5e4b06c85694e128c814a23771fc3ab4dd28737229ad9bde833fd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68776f9bce5e4b06c85694e128c814a23771fc3ab4dd28737229ad9bde833fd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68776f9bce5e4b06c85694e128c814a23771fc3ab4dd28737229ad9bde833fd7", kill_on_drop: false }`
[INFO] [stdout] 68776f9bce5e4b06c85694e128c814a23771fc3ab4dd28737229ad9bde833fd7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dea753f0b6bd0fd92672edcdedbc08d45fa354885fd5dc1783e136b8b51247a7
[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" "dea753f0b6bd0fd92672edcdedbc08d45fa354885fd5dc1783e136b8b51247a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling cc v1.0.57
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking bytes v0.5.5
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking try-lock v0.2.2
[INFO] [stderr]    Compiling serde_json v1.0.56
[INFO] [stderr]     Checking tower-service v0.3.0
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling encoding_rs v0.8.23
[INFO] [stderr]     Checking gimli v0.21.0
[INFO] [stderr]     Checking adler32 v1.1.0
[INFO] [stderr]     Checking adler v0.2.2
[INFO] [stderr]    Compiling curl v0.4.30
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking dtoa v0.4.6
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking netbuf v0.4.1
[INFO] [stderr]     Checking colorful v0.2.1
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling error-chain v0.12.2
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking http v0.2.1
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[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking radix64 v0.3.0
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]    Compiling indexmap v1.4.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking socket2 v0.3.12
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[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling curl-sys v0.4.32+curl-7.70.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tokio v0.2.21
[INFO] [stderr]     Checking backtrace v0.3.49
[INFO] [stderr]     Checking chrono v0.4.13
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking pin-project v0.4.22
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking h2 v0.2.5
[INFO] [stderr]     Checking hyper v0.13.6
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking ozelot v0.9.0
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking reqwest v0.10.6
[INFO] [stderr]     Checking mojang-api v0.6.1
[INFO] [stderr]     Checking Composition v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `mojang_api::*`
[INFO] [stdout]   --> src/net.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use mojang_api::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ozelot::mojang::*`
[INFO] [stdout]   --> src/net.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use ozelot::mojang::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::sleep`
[INFO] [stdout]   --> src/net.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std::thread::sleep;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration`, `SystemTime`, `UNIX_EPOCH`
[INFO] [stdout]   --> src/net.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 | use std::time::{Duration, SystemTime, UNIX_EPOCH};
[INFO] [stdout]    |                 ^^^^^^^^  ^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/main.rs:21:33
[INFO] [stdout]    |
[INFO] [stdout] 21 |     static ref config: Config = { Config::from_file("composition.toml") };
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `mojang_api::*`
[INFO] [stdout]   --> src/net.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use mojang_api::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ozelot::mojang::*`
[INFO] [stdout]   --> src/net.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use ozelot::mojang::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::sleep`
[INFO] [stdout]   --> src/net.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std::thread::sleep;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration`, `SystemTime`, `UNIX_EPOCH`
[INFO] [stdout]   --> src/net.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 | use std::time::{Duration, SystemTime, UNIX_EPOCH};
[INFO] [stdout]    |                 ^^^^^^^^  ^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/main.rs:21:33
[INFO] [stdout]    |
[INFO] [stdout] 21 |     static ref config: Config = { Config::from_file("composition.toml") };
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `packet_len`
[INFO] [stdout]    --> src/net.rs:130:21
[INFO] [stdout]     |
[INFO] [stdout] 130 |                 let packet_len = MCVarInt::from(packet_id.to_bytes().len() as i32 + 54i32);
[INFO] [stdout]     |                     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_packet_len`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `packet_len`
[INFO] [stdout]    --> src/net.rs:130:21
[INFO] [stdout]     |
[INFO] [stdout] 130 |                 let packet_len = MCVarInt::from(packet_id.to_bytes().len() as i32 + 54i32);
[INFO] [stdout]     |                     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_packet_len`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 01s
[INFO] running `Command { std: "docker" "inspect" "dea753f0b6bd0fd92672edcdedbc08d45fa354885fd5dc1783e136b8b51247a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dea753f0b6bd0fd92672edcdedbc08d45fa354885fd5dc1783e136b8b51247a7", kill_on_drop: false }`
[INFO] [stdout] dea753f0b6bd0fd92672edcdedbc08d45fa354885fd5dc1783e136b8b51247a7