[INFO] fetching crate mlflow 0.1.0...
[INFO] checking mlflow-0.1.0 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate mlflow 0.1.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate mlflow 0.1.0 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mlflow 0.1.0
[INFO] finished tweaking crates.io crate mlflow 0.1.0
[INFO] tweaked toml for crates.io crate mlflow 0.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate mlflow 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cc v1.0.62
[INFO] [stderr]   Downloaded qstring v0.7.2
[INFO] [stderr]   Downloaded webpki v0.21.3
[INFO] [stderr]   Downloaded nanoserde-derive v0.1.12
[INFO] [stderr]   Downloaded nanorand v0.4.4
[INFO] [stderr]   Downloaded anyhow v1.0.34
[INFO] [stderr]   Downloaded unicode-normalization v0.1.15
[INFO] [stderr]   Downloaded ureq v1.5.2
[INFO] [stderr]   Downloaded pico-args v0.3.4
[INFO] [stderr]   Downloaded chunked_transfer v1.3.0
[INFO] [stderr]   Downloaded sct v0.6.0
[INFO] [stderr]   Downloaded tinyvec v1.0.1
[INFO] [stderr]   Downloaded nanoserde v0.1.20
[INFO] [stderr]   Downloaded ring v0.16.16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bf37b1b8df1f9fe1c8af083b774685147117b714cba699ab5651c3ddc6a5c88c
[INFO] running `Command { std: "docker" "start" "-a" "bf37b1b8df1f9fe1c8af083b774685147117b714cba699ab5651c3ddc6a5c88c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf37b1b8df1f9fe1c8af083b774685147117b714cba699ab5651c3ddc6a5c88c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf37b1b8df1f9fe1c8af083b774685147117b714cba699ab5651c3ddc6a5c88c", kill_on_drop: false }`
[INFO] [stdout] bf37b1b8df1f9fe1c8af083b774685147117b714cba699ab5651c3ddc6a5c88c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8af4464b7da575c101670db4cf4b842d748009e461b5e58a517f4ce4d9b43154
[INFO] running `Command { std: "docker" "start" "-a" "8af4464b7da575c101670db4cf4b842d748009e461b5e58a517f4ce4d9b43154", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling cc v1.0.62
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling anyhow v1.0.34
[INFO] [stderr]    Compiling nanoserde-derive v0.1.12
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking chunked_transfer v1.3.0
[INFO] [stderr]     Checking pico-args v0.3.4
[INFO] [stderr]     Checking nanorand v0.4.4
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking tinyvec v1.0.1
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking form_urlencoded v1.0.0
[INFO] [stderr]     Checking qstring v0.7.2
[INFO] [stderr]     Checking nanoserde v0.1.20
[INFO] [stderr]     Checking unicode-normalization v0.1.15
[INFO] [stderr]    Compiling ring v0.16.16
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking url v2.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]     Checking webpki v0.21.3
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking rustls v0.18.1
[INFO] [stderr]     Checking webpki-roots v0.20.0
[INFO] [stderr]     Checking thiserror v1.0.22
[INFO] [stderr]     Checking ureq v1.5.2
[INFO] [stderr]     Checking mlflow v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `experiment_id` is never read
[INFO] [stdout]    --> src/storage/server.rs:254:17
[INFO] [stdout]     |
[INFO] [stdout] 253 |         pub struct Response {
[INFO] [stdout]     |                    -------- field in this struct
[INFO] [stdout] 254 |             pub experiment_id: String,
[INFO] [stdout]     |                 ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `run_info` is never read
[INFO] [stdout]    --> src/storage/server.rs:316:17
[INFO] [stdout]     |
[INFO] [stdout] 315 |         pub struct Response {
[INFO] [stdout]     |                    -------- field in this struct
[INFO] [stdout] 316 |             pub run_info: RunInfo,
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `experiment_id` is never read
[INFO] [stdout]    --> src/storage/server.rs:254:17
[INFO] [stdout]     |
[INFO] [stdout] 253 |         pub struct Response {
[INFO] [stdout]     |                    -------- field in this struct
[INFO] [stdout] 254 |             pub experiment_id: String,
[INFO] [stdout]     |                 ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `run_info` is never read
[INFO] [stdout]    --> src/storage/server.rs:316:17
[INFO] [stdout]     |
[INFO] [stdout] 315 |         pub struct Response {
[INFO] [stdout]     |                    -------- field in this struct
[INFO] [stdout] 316 |             pub run_info: RunInfo,
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.86s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nanoserde-derive v0.1.12
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "8af4464b7da575c101670db4cf4b842d748009e461b5e58a517f4ce4d9b43154", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8af4464b7da575c101670db4cf4b842d748009e461b5e58a517f4ce4d9b43154", kill_on_drop: false }`
[INFO] [stdout] 8af4464b7da575c101670db4cf4b842d748009e461b5e58a517f4ce4d9b43154