[INFO] fetching crate tycho 0.0.6...
[INFO] checking tycho-0.0.6 against try#99a443d6903f71d521237d8acb5a3016b534d17b for pr-83354
[INFO] extracting crate tycho 0.0.6 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate tycho 0.0.6 on toolchain 99a443d6903f71d521237d8acb5a3016b534d17b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "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-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "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] 264ce0dec5bc6f798b1fa75822eb5e0f73c8b85793385ef71f9fb984788a21fb
[INFO] running `Command { std: "docker" "start" "-a" "264ce0dec5bc6f798b1fa75822eb5e0f73c8b85793385ef71f9fb984788a21fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "264ce0dec5bc6f798b1fa75822eb5e0f73c8b85793385ef71f9fb984788a21fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "264ce0dec5bc6f798b1fa75822eb5e0f73c8b85793385ef71f9fb984788a21fb", kill_on_drop: false }`
[INFO] [stdout] 264ce0dec5bc6f798b1fa75822eb5e0f73c8b85793385ef71f9fb984788a21fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba42eb763abfa98a5dce27346c9c6e99524eaf1901c8d6c938f45529b696422b
[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" "ba42eb763abfa98a5dce27346c9c6e99524eaf1901c8d6c938f45529b696422b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.67
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling serde v1.0.125
[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 27.74s
[INFO] running `Command { std: "docker" "inspect" "ba42eb763abfa98a5dce27346c9c6e99524eaf1901c8d6c938f45529b696422b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba42eb763abfa98a5dce27346c9c6e99524eaf1901c8d6c938f45529b696422b", kill_on_drop: false }`
[INFO] [stdout] ba42eb763abfa98a5dce27346c9c6e99524eaf1901c8d6c938f45529b696422b