[INFO] cloning repository https://github.com/teodorlu/riddler [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/teodorlu/riddler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fteodorlu%2Friddler", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fteodorlu%2Friddler'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7b71d6d788dc54395d34b9fdfc6f7c6eae29e064 [INFO] checking teodorlu/riddler against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fteodorlu%2Friddler" "/workspace/builds/worker-1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/teodorlu/riddler on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/teodorlu/riddler [INFO] finished tweaking git repo https://github.com/teodorlu/riddler [INFO] tweaked toml for git repo https://github.com/teodorlu/riddler written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/teodorlu/riddler already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "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 serde v1.0.87 [INFO] [stderr] Downloaded tempfile v3.0.6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "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] 282175f1359aaf40e02844c030e86d92635895fb86f985607055de4fbd7e4319 [INFO] running `Command { std: "docker" "start" "-a" "282175f1359aaf40e02844c030e86d92635895fb86f985607055de4fbd7e4319", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "282175f1359aaf40e02844c030e86d92635895fb86f985607055de4fbd7e4319", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "282175f1359aaf40e02844c030e86d92635895fb86f985607055de4fbd7e4319", kill_on_drop: false }` [INFO] [stdout] 282175f1359aaf40e02844c030e86d92635895fb86f985607055de4fbd7e4319 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "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] 1c3cf9a0c4f2a52cd21351927041589cb4a08c41d315bac76ad1403593785b7d [INFO] running `Command { std: "docker" "start" "-a" "1c3cf9a0c4f2a52cd21351927041589cb4a08c41d315bac76ad1403593785b7d", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.48 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Compiling rand_core v0.4.0 [INFO] [stderr] Checking futures v0.1.25 [INFO] [stderr] Checking scopeguard v0.3.3 [INFO] [stderr] Checking stable_deref_trait v1.1.1 [INFO] [stderr] Compiling arrayvec v0.4.10 [INFO] [stderr] Compiling pkg-config v0.3.14 [INFO] [stderr] Checking memoffset v0.2.1 [INFO] [stderr] Compiling siphasher v0.2.3 [INFO] [stderr] Checking fnv v1.0.6 [INFO] [stderr] Compiling serde v1.0.87 [INFO] [stderr] Compiling openssl v0.10.16 [INFO] [stderr] Checking try-lock v0.2.2 [INFO] [stderr] Compiling crc32fast v1.1.2 [INFO] [stderr] Compiling native-tls v0.2.2 [INFO] [stderr] Checking string v0.1.3 [INFO] [stderr] Compiling encoding_rs v0.8.16 [INFO] [stderr] Checking dtoa v0.4.3 [INFO] [stderr] Checking adler32 v1.0.3 [INFO] [stderr] Checking opaque-debug v0.2.2 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking crossbeam-utils v0.6.5 [INFO] [stderr] Checking rand_jitter v0.1.3 [INFO] [stderr] Checking log v0.4.6 [INFO] [stderr] Compiling unicase v2.2.0 [INFO] [stderr] Checking unreachable v1.0.0 [INFO] [stderr] Checking owning_ref v0.4.0 [INFO] [stderr] Checking block-padding v0.1.3 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking smallvec v0.6.8 [INFO] [stderr] Checking generic-array v0.12.0 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling phf_shared v0.7.24 [INFO] [stderr] Checking lock_api v0.1.5 [INFO] [stderr] Checking phf v0.7.24 [INFO] [stderr] Checking crossbeam-channel v0.3.8 [INFO] [stderr] Checking unicode-normalization v0.1.8 [INFO] [stderr] Checking libflate v0.1.19 [INFO] [stderr] Checking digest v0.8.0 [INFO] [stderr] Checking block-buffer v0.7.0 [INFO] [stderr] Checking sha2 v0.8.0 [INFO] [stderr] Compiling rand_pcg v0.1.1 [INFO] [stderr] Compiling parking_lot_core v0.4.0 [INFO] [stderr] Compiling openssl-sys v0.9.40 [INFO] [stderr] Checking crossbeam-epoch v0.7.1 [INFO] [stderr] Checking mime v0.3.13 [INFO] [stderr] Checking crossbeam-deque v0.6.3 [INFO] [stderr] Compiling rand_os v0.1.2 [INFO] [stderr] Checking iovec v0.1.2 [INFO] [stderr] Checking num_cpus v1.9.0 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking time v0.1.42 [INFO] [stderr] Checking bytes v0.4.11 [INFO] [stderr] Checking mio v0.6.16 [INFO] [stderr] Checking tokio-executor v0.1.6 [INFO] [stderr] Checking want v0.0.6 [INFO] [stderr] Checking futures-cpupool v0.1.8 [INFO] [stderr] Checking idna v0.1.5 [INFO] [stderr] Checking tokio-io v0.1.11 [INFO] [stderr] Checking http v0.1.15 [INFO] [stderr] Checking tokio-current-thread v0.1.4 [INFO] [stderr] Checking tokio-timer v0.2.10 [INFO] [stderr] Checking url v1.7.2 [INFO] [stderr] Compiling phf_generator v0.7.24 [INFO] [stderr] Checking uuid v0.7.2 [INFO] [stderr] Compiling phf_codegen v0.7.24 [INFO] [stderr] Compiling mime_guess v2.0.0-alpha.6 [INFO] [stderr] Checking parking_lot v0.7.1 [INFO] [stderr] Checking crossbeam v0.6.0 [INFO] [stderr] Checking tokio-reactor v0.1.8 [INFO] [stderr] Checking tokio-tcp v0.1.3 [INFO] [stderr] Checking tokio-threadpool v0.1.11 [INFO] [stderr] Checking serde_json v1.0.38 [INFO] [stderr] Checking serde_urlencoded v0.5.4 [INFO] [stderr] Checking h2 v0.1.16 [INFO] [stderr] Checking tokio v0.1.15 [INFO] [stderr] Checking hyper v0.12.23 [INFO] [stderr] Checking hyper-tls v0.3.1 [INFO] [stderr] Checking reqwest v0.9.9 [INFO] [stderr] Checking riddler v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::io` [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::io; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `DirEntry` [INFO] [stdout] --> src/main.rs:2:21 [INFO] [stdout] | [INFO] [stdout] 2 | use std::fs::{self, DirEntry}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `vec` [INFO] [stdout] --> src/main.rs:32:13 [INFO] [stdout] | [INFO] [stdout] 32 | let mut vec = vec![s]; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_vec` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `buffer` [INFO] [stdout] --> src/main.rs:34:13 [INFO] [stdout] | [INFO] [stdout] 34 | let mut buffer = String::new(); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:32:9 [INFO] [stdout] | [INFO] [stdout] 32 | let mut vec = vec![s]; [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:34:9 [INFO] [stdout] | [INFO] [stdout] 34 | let mut buffer = String::new(); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `parse_url_statuses` [INFO] [stdout] --> src/main.rs:26:4 [INFO] [stdout] | [INFO] [stdout] 26 | fn parse_url_statuses(folder: &str) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io` [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::io; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `DirEntry` [INFO] [stdout] --> src/main.rs:2:21 [INFO] [stdout] | [INFO] [stdout] 2 | use std::fs::{self, DirEntry}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `vec` [INFO] [stdout] --> src/main.rs:32:13 [INFO] [stdout] | [INFO] [stdout] 32 | let mut vec = vec![s]; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_vec` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `buffer` [INFO] [stdout] --> src/main.rs:34:13 [INFO] [stdout] | [INFO] [stdout] 34 | let mut buffer = String::new(); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:32:9 [INFO] [stdout] | [INFO] [stdout] 32 | let mut vec = vec![s]; [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:34:9 [INFO] [stdout] | [INFO] [stdout] 34 | let mut buffer = String::new(); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `parse_url_statuses` [INFO] [stdout] --> src/main.rs:26:4 [INFO] [stdout] | [INFO] [stdout] 26 | fn parse_url_statuses(folder: &str) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 26.79s [INFO] running `Command { std: "docker" "inspect" "1c3cf9a0c4f2a52cd21351927041589cb4a08c41d315bac76ad1403593785b7d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1c3cf9a0c4f2a52cd21351927041589cb4a08c41d315bac76ad1403593785b7d", kill_on_drop: false }` [INFO] [stdout] 1c3cf9a0c4f2a52cd21351927041589cb4a08c41d315bac76ad1403593785b7d