[INFO] fetching crate tycho 0.0.6...
[INFO] checking tycho-0.0.6 against master#195ad4830e11a544391abe296b146450dea8411b for pr-82781
[INFO] extracting crate tycho 0.0.6 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate tycho 0.0.6 on toolchain 195ad4830e11a544391abe296b146450dea8411b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tycho 0.0.6
[INFO] finished tweaking crates.io crate tycho 0.0.6
[INFO] tweaked toml for crates.io crate tycho 0.0.6 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "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] 46faaf4ab602638243a67eda3ced3160261f12d1e27c511dc6a5b21ea24c88b7
[INFO] running `Command { std: "docker" "start" "-a" "46faaf4ab602638243a67eda3ced3160261f12d1e27c511dc6a5b21ea24c88b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46faaf4ab602638243a67eda3ced3160261f12d1e27c511dc6a5b21ea24c88b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46faaf4ab602638243a67eda3ced3160261f12d1e27c511dc6a5b21ea24c88b7", kill_on_drop: false }`
[INFO] [stdout] 46faaf4ab602638243a67eda3ced3160261f12d1e27c511dc6a5b21ea24c88b7
[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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 0eabe3b37b9cbad6135c70f4aa00c48de51713561d088e499b260b21932f2eef
[INFO] running `Command { std: "docker" "start" "-a" "0eabe3b37b9cbad6135c70f4aa00c48de51713561d088e499b260b21932f2eef", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking tycho v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]  --> src/decode/length.rs:7:22
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut length = ((a as u32) & 0x3F);
[INFO] [stdout]   |                      ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]  --> src/decode/length.rs:7:22
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut length = ((a as u32) & 0x3F);
[INFO] [stdout]   |                      ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::decode::decode`
[INFO] [stdout]    --> src/lib.rs:265:9
[INFO] [stdout]     |
[INFO] [stdout] 265 |     use crate::decode::decode;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.46s
[INFO] running `Command { std: "docker" "inspect" "0eabe3b37b9cbad6135c70f4aa00c48de51713561d088e499b260b21932f2eef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0eabe3b37b9cbad6135c70f4aa00c48de51713561d088e499b260b21932f2eef", kill_on_drop: false }`
[INFO] [stdout] 0eabe3b37b9cbad6135c70f4aa00c48de51713561d088e499b260b21932f2eef