[INFO] cloning repository https://github.com/Flockingbird/hunter2 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Flockingbird/hunter2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFlockingbird%2Fhunter2", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFlockingbird%2Fhunter2'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 9852cc21cc730a93d9b146738b2e9668a3b3c112 [INFO] checking Flockingbird/hunter2 against try#7b3565da729099dbe807466fcd118fb2815986e0 for pr-81789 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFlockingbird%2Fhunter2" "/workspace/builds/worker-3/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Flockingbird/hunter2 on toolchain 7b3565da729099dbe807466fcd118fb2815986e0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Flockingbird/hunter2 [INFO] finished tweaking git repo https://github.com/Flockingbird/hunter2 [INFO] tweaked toml for git repo https://github.com/Flockingbird/hunter2 written to /workspace/builds/worker-3/source/Cargo.toml [INFO] crate git repo https://github.com/Flockingbird/hunter2 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded envy v0.4.2 [INFO] [stderr] Downloaded spinning_top v0.2.2 [INFO] [stderr] Downloaded serde_qs v0.4.6 [INFO] [stderr] Downloaded skeptic v0.13.5 [INFO] [stderr] Downloaded cargo_metadata v0.10.0 [INFO] [stderr] Downloaded flume v0.10.2 [INFO] [stderr] Downloaded bytecount v0.6.2 [INFO] [stderr] Downloaded data-encoding v2.3.2 [INFO] [stderr] Downloaded hyper-old-types v0.11.0 [INFO] [stderr] Downloaded isolang v1.0.0 [INFO] [stderr] Downloaded curl v0.4.35 [INFO] [stderr] Downloaded isahc v1.1.0 [INFO] [stderr] Downloaded security-framework v2.1.2 [INFO] [stderr] Downloaded doc-comment v0.3.3 [INFO] [stderr] Downloaded hyper v0.12.36 [INFO] [stderr] Downloaded pulldown-cmark v0.2.0 [INFO] [stderr] Downloaded futures v0.1.31 [INFO] [stderr] Downloaded security-framework-sys v2.1.1 [INFO] [stderr] Downloaded tungstenite v0.10.1 [INFO] [stderr] Downloaded publicsuffix v1.5.6 [INFO] [stderr] Downloaded curl-sys v0.4.41+curl-7.75.0 [INFO] [stderr] Downloaded tap-reader v1.0.1 [INFO] [stderr] Downloaded libnghttp2-sys v0.1.6+1.43.0 [INFO] [stderr] Downloaded meilisearch-sdk v0.6.0 [INFO] [stderr] Downloaded webfinger v0.5.0 [INFO] [stderr] Downloaded elefren v0.22.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "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] e2c150387bfaad31349b6b7c276dae82baf7aeede5dac763325990c55ffbe2dd [INFO] running `Command { std: "docker" "start" "-a" "e2c150387bfaad31349b6b7c276dae82baf7aeede5dac763325990c55ffbe2dd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e2c150387bfaad31349b6b7c276dae82baf7aeede5dac763325990c55ffbe2dd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e2c150387bfaad31349b6b7c276dae82baf7aeede5dac763325990c55ffbe2dd", kill_on_drop: false }` [INFO] [stdout] e2c150387bfaad31349b6b7c276dae82baf7aeede5dac763325990c55ffbe2dd [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4613424f8fd1b8972c015058c574f9b070e94841bc0912899b95747b3907aeed [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" "4613424f8fd1b8972c015058c574f9b070e94841bc0912899b95747b3907aeed", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.88 [INFO] [stderr] Compiling syn v1.0.63 [INFO] [stderr] Compiling serde_derive v1.0.124 [INFO] [stderr] Compiling serde v1.0.124 [INFO] [stderr] Compiling pkg-config v0.3.19 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Checking futures v0.1.31 [INFO] [stderr] Checking fnv v1.0.7 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Checking adler v1.0.2 [INFO] [stderr] Checking openssl-probe v0.1.2 [INFO] [stderr] Checking gimli v0.23.0 [INFO] [stderr] Compiling typenum v1.13.0 [INFO] [stderr] Checking pin-project-lite v0.2.6 [INFO] [stderr] Checking futures-sink v0.3.13 [INFO] [stderr] Checking object v0.23.0 [INFO] [stderr] Checking rustc-demangle v0.1.18 [INFO] [stderr] Checking futures-io v0.3.13 [INFO] [stderr] Compiling getrandom v0.1.16 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Compiling pulldown-cmark v0.2.0 [INFO] [stderr] Checking bytes v1.0.1 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Checking ppv-lite86 v0.2.10 [INFO] [stderr] Compiling curl v0.4.35 [INFO] [stderr] Compiling bytecount v0.6.2 [INFO] [stderr] Checking parking v2.0.0 [INFO] [stderr] Checking bytes v0.5.6 [INFO] [stderr] Checking fastrand v1.4.0 [INFO] [stderr] Compiling isahc v1.1.0 [INFO] [stderr] Checking waker-fn v1.1.0 [INFO] [stderr] Checking once_cell v1.7.2 [INFO] [stderr] Checking data-encoding v2.3.2 [INFO] [stderr] Checking tap-reader v1.0.1 [INFO] [stderr] Checking regex-syntax v0.6.23 [INFO] [stderr] Compiling miniz_oxide v0.4.4 [INFO] [stderr] Compiling libnghttp2-sys v0.1.6+1.43.0 [INFO] [stderr] Compiling indexmap v1.6.2 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling crossbeam-utils v0.8.3 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Checking tracing-core v0.1.17 [INFO] [stderr] Checking try_from v0.3.2 [INFO] [stderr] Compiling unicase v2.6.0 [INFO] [stderr] Checking lock_api v0.3.4 [INFO] [stderr] Compiling error-chain v0.12.4 [INFO] [stderr] Checking lock_api v0.4.2 [INFO] [stderr] Checking base64 v0.10.1 [INFO] [stderr] Checking form_urlencoded v1.0.1 [INFO] [stderr] Compiling phf_shared v0.7.24 [INFO] [stderr] Checking futures-channel v0.3.13 [INFO] [stderr] Compiling walkdir v2.3.1 [INFO] [stderr] Checking base64 v0.9.3 [INFO] [stderr] Checking http v0.2.3 [INFO] [stderr] Checking uuid v0.8.2 [INFO] [stderr] Checking getopts v0.2.21 [INFO] [stderr] Compiling openssl-sys v0.9.60 [INFO] [stderr] Compiling libz-sys v1.1.2 [INFO] [stderr] Compiling curl-sys v0.4.41+curl-7.75.0 [INFO] [stderr] Checking tokio-sync v0.1.8 [INFO] [stderr] Checking input_buffer v0.3.1 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Checking encoding_rs v0.8.28 [INFO] [stderr] Checking crc32fast v1.2.1 [INFO] [stderr] Checking phf v0.7.24 [INFO] [stderr] Checking spinning_top v0.2.2 [INFO] [stderr] Checking sluice v0.5.4 [INFO] [stderr] Checking idna v0.2.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Checking futures-lite v1.11.3 [INFO] [stderr] Checking want v0.2.0 [INFO] [stderr] Checking tokio-executor v0.1.10 [INFO] [stderr] Compiling getrandom v0.2.2 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Checking regex v1.4.5 [INFO] [stderr] Compiling backtrace v0.3.56 [INFO] [stderr] Checking addr2line v0.14.1 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking time v0.1.43 [INFO] [stderr] Checking net2 v0.2.37 [INFO] [stderr] Checking socket2 v0.3.19 [INFO] [stderr] Checking flate2 v1.0.20 [INFO] [stderr] Checking url v2.2.1 [INFO] [stderr] Checking generic-array v0.12.4 [INFO] [stderr] Checking tokio-current-thread v0.1.7 [INFO] [stderr] Checking tokio-timer v0.2.13 [INFO] [stderr] Compiling openssl v0.10.32 [INFO] [stderr] Compiling native-tls v0.2.7 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling rand_core v0.6.2 [INFO] [stderr] Compiling mime_guess v2.0.3 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Checking futures-cpupool v0.1.8 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking tokio-threadpool v0.1.18 [INFO] [stderr] Checking mio v0.6.23 [INFO] [stderr] Checking cookie v0.12.0 [INFO] [stderr] Checking digest v0.8.1 [INFO] [stderr] Checking block-buffer v0.7.3 [INFO] [stderr] Compiling rand_chacha v0.3.0 [INFO] [stderr] Checking publicsuffix v1.5.6 [INFO] [stderr] Checking tokio-io v0.1.13 [INFO] [stderr] Checking http v0.1.21 [INFO] [stderr] Checking tokio-buf v0.1.1 [INFO] [stderr] Checking string v0.2.1 [INFO] [stderr] Checking hyper-old-types v0.11.0 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking sha-1 v0.8.2 [INFO] [stderr] Compiling phf_generator v0.7.24 [INFO] [stderr] Compiling rand v0.8.3 [INFO] [stderr] Checking uuid v0.7.4 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Compiling phf_codegen v0.7.24 [INFO] [stderr] Compiling isolang v1.0.0 [INFO] [stderr] Compiling tempfile v3.2.0 [INFO] [stderr] Checking http-body v0.1.0 [INFO] [stderr] Checking h2 v0.1.26 [INFO] [stderr] Checking tungstenite v0.10.1 [INFO] [stderr] Compiling synstructure v0.12.4 [INFO] [stderr] Compiling pin-project-internal v1.0.5 [INFO] [stderr] Compiling tracing-attributes v0.1.15 [INFO] [stderr] Compiling futures-macro v0.3.13 [INFO] [stderr] Checking failure v0.1.8 [INFO] [stderr] Checking futures-util v0.3.13 [INFO] [stderr] Checking pin-project v1.0.5 [INFO] [stderr] Checking tracing v0.1.25 [INFO] [stderr] Checking flume v0.10.2 [INFO] [stderr] Checking tracing-futures v0.2.5 [INFO] [stderr] Checking futures-executor v0.3.13 [INFO] [stderr] Checking futures v0.3.13 [INFO] [stderr] Checking serde_json v1.0.64 [INFO] [stderr] Checking serde_urlencoded v0.5.5 [INFO] [stderr] Checking serde_urlencoded v0.6.1 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking serde_qs v0.4.6 [INFO] [stderr] Checking envy v0.4.2 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling parking_lot_core v0.6.2 [INFO] [stderr] Compiling parking_lot v0.9.0 [INFO] [stderr] Compiling hyper v0.12.36 [INFO] [stderr] Checking cookie_store v0.7.0 [INFO] [stderr] Checking meilisearch-sdk v0.6.0 [INFO] [stderr] Compiling cargo_metadata v0.10.0 [INFO] [stderr] Checking tokio-reactor v0.1.12 [INFO] [stderr] Checking tokio-tcp v0.1.4 [INFO] [stderr] Checking tokio v0.1.22 [INFO] [stderr] Compiling skeptic v0.13.5 [INFO] [stderr] Compiling elefren v0.22.0 [INFO] [stderr] Checking hyper-tls v0.3.2 [INFO] [stderr] Checking reqwest v0.9.24 [INFO] [stderr] Checking webfinger v0.5.0 [INFO] [stderr] Checking hunter2 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variant is never constructed: `Error` [INFO] [stdout] --> src/main.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 30 | Error(String), [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Error` [INFO] [stdout] --> src/main.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 30 | Error(String), [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/main.rs:93:20 [INFO] [stdout] | [INFO] [stdout] 93 | panic!(f.to_string()) [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_fmt_panic)]` on by default [INFO] [stdout] = note: this is no longer accepted in Rust 2021 [INFO] [stdout] help: add a "{}" format string to Display the message [INFO] [stdout] | [INFO] [stdout] 93 | panic!("{}", f.to_string()) [INFO] [stdout] | ^^^^^ [INFO] [stdout] help: or use std::panic::panic_any instead [INFO] [stdout] | [INFO] [stdout] 93 | std::panic::panic_any(f.to_string()) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/main.rs:93:20 [INFO] [stdout] | [INFO] [stdout] 93 | panic!(f.to_string()) [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_fmt_panic)]` on by default [INFO] [stdout] = note: this is no longer accepted in Rust 2021 [INFO] [stdout] help: add a "{}" format string to Display the message [INFO] [stdout] | [INFO] [stdout] 93 | panic!("{}", f.to_string()) [INFO] [stdout] | ^^^^^ [INFO] [stdout] help: or use std::panic::panic_any instead [INFO] [stdout] | [INFO] [stdout] 93 | std::panic::panic_any(f.to_string()) [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 [unoptimized + debuginfo] target(s) in 1m 37s [INFO] running `Command { std: "docker" "inspect" "4613424f8fd1b8972c015058c574f9b070e94841bc0912899b95747b3907aeed", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4613424f8fd1b8972c015058c574f9b070e94841bc0912899b95747b3907aeed", kill_on_drop: false }` [INFO] [stdout] 4613424f8fd1b8972c015058c574f9b070e94841bc0912899b95747b3907aeed