[INFO] fetching crate doric 0.1.0...
[INFO] checking doric-0.1.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate doric 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate doric 0.1.0
[INFO] removed 1 missing examples
[INFO] finished tweaking crates.io crate doric 0.1.0
[INFO] tweaked toml for crates.io crate doric 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate doric 0.1.0 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate doric 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded arc-swap v1.2.0
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d537b0cbced34e9b4760028bc016e939bdeca11feb9d264dc8999734bb509e1c
[INFO] running `Command { std: "docker" "start" "-a" "d537b0cbced34e9b4760028bc016e939bdeca11feb9d264dc8999734bb509e1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d537b0cbced34e9b4760028bc016e939bdeca11feb9d264dc8999734bb509e1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d537b0cbced34e9b4760028bc016e939bdeca11feb9d264dc8999734bb509e1c", kill_on_drop: false }`
[INFO] [stdout] d537b0cbced34e9b4760028bc016e939bdeca11feb9d264dc8999734bb509e1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe67a95e549ec023fe2882fcd5cc2a88d68f43380287eb1530db209d51305d8b
[INFO] running `Command { std: "docker" "start" "-a" "fe67a95e549ec023fe2882fcd5cc2a88d68f43380287eb1530db209d51305d8b", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking arc-swap v1.2.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling crossbeam-utils v0.8.4
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking crossbeam-queue v0.3.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking doric v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `mode` is never read
[INFO] [stdout]   --> src/encode/parser.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Parser {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 11 |     mode: i32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Parser` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `mode` is never read
[INFO] [stdout]   --> src/encode/parser.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Parser {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 11 |     mode: i32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Parser` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.59s
[INFO] running `Command { std: "docker" "inspect" "fe67a95e549ec023fe2882fcd5cc2a88d68f43380287eb1530db209d51305d8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe67a95e549ec023fe2882fcd5cc2a88d68f43380287eb1530db209d51305d8b", kill_on_drop: false }`
[INFO] [stdout] fe67a95e549ec023fe2882fcd5cc2a88d68f43380287eb1530db209d51305d8b