[INFO] cloning repository https://github.com/shnarazk/talkOnAlgorithms [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shnarazk/talkOnAlgorithms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshnarazk%2FtalkOnAlgorithms", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshnarazk%2FtalkOnAlgorithms'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 55cc229026835324e1030d08be80a12724285ec3 [INFO] checking shnarazk/talkOnAlgorithms against try#5cafabc9f16561d7796554d5d241c3068e2bd97f for pr-135852 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshnarazk%2FtalkOnAlgorithms" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/shnarazk/talkOnAlgorithms on toolchain 5cafabc9f16561d7796554d5d241c3068e2bd97f [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5cafabc9f16561d7796554d5d241c3068e2bd97f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/shnarazk/talkOnAlgorithms [INFO] finished tweaking git repo https://github.com/shnarazk/talkOnAlgorithms [INFO] tweaked toml for git repo https://github.com/shnarazk/talkOnAlgorithms written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/shnarazk/talkOnAlgorithms 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" "+5cafabc9f16561d7796554d5d241c3068e2bd97f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+5cafabc9f16561d7796554d5d241c3068e2bd97f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 594fe82f4d0045e700fff1422fd8da17ec27d5bf633a306087e43510b5fa39b6 [INFO] running `Command { std: "docker" "start" "-a" "594fe82f4d0045e700fff1422fd8da17ec27d5bf633a306087e43510b5fa39b6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "594fe82f4d0045e700fff1422fd8da17ec27d5bf633a306087e43510b5fa39b6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "594fe82f4d0045e700fff1422fd8da17ec27d5bf633a306087e43510b5fa39b6", kill_on_drop: false }` [INFO] [stdout] 594fe82f4d0045e700fff1422fd8da17ec27d5bf633a306087e43510b5fa39b6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+5cafabc9f16561d7796554d5d241c3068e2bd97f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 79d16aec6e34f6e187bd205f3a680745b3cf885fd874ae3a86b226daba2f6dcd [INFO] running `Command { std: "docker" "start" "-a" "79d16aec6e34f6e187bd205f3a680745b3cf885fd874ae3a86b226daba2f6dcd", kill_on_drop: false }` [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling libc v0.2.109 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Checking ppv-lite86 v0.2.15 [INFO] [stderr] Compiling semver v1.0.4 [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Compiling crossbeam-utils v0.8.5 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling proc-macro2 v1.0.32 [INFO] [stderr] Compiling crossbeam-epoch v0.9.5 [INFO] [stderr] Compiling ryu v1.0.6 [INFO] [stderr] Compiling rayon-core v1.9.1 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.82 [INFO] [stderr] Compiling serde_json v1.0.72 [INFO] [stderr] Checking itoa v0.4.8 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Checking plotters-backend v0.3.2 [INFO] [stderr] Checking regex-automata v0.1.10 [INFO] [stderr] Checking unicode-width v0.1.9 [INFO] [stderr] Compiling serde_derive v1.0.130 [INFO] [stderr] Checking itertools v0.10.1 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking plotters-svg v0.3.1 [INFO] [stderr] Checking half v1.8.2 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Checking oorandom v11.1.3 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Compiling memoffset v0.6.5 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Checking walkdir v2.3.2 [INFO] [stderr] Checking crossbeam-channel v0.5.1 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Compiling rustc_version v0.4.0 [INFO] [stderr] Compiling quote v1.0.10 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Compiling cast v0.2.7 [INFO] [stderr] Checking crossbeam-deque v0.8.1 [INFO] [stderr] Checking getrandom v0.2.3 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking criterion-plot v0.4.4 [INFO] [stderr] Checking rand v0.8.4 [INFO] [stderr] Checking plotters v0.3.1 [INFO] [stderr] Checking toa v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: value assigned to `pre2` is never read [INFO] [stdout] --> src/bin/fib.rs:21:13 [INFO] [stdout] | [INFO] [stdout] 21 | let mut pre2 = 1; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/bin/fib.rs:23:9 [INFO] [stdout] | [INFO] [stdout] 23 | for i in 3..=n { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking bstr v0.2.17 [INFO] [stderr] Checking serde_cbor v0.11.2 [INFO] [stderr] Checking csv v1.1.6 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking criterion v0.3.5 [INFO] [stdout] warning: value assigned to `pre2` is never read [INFO] [stdout] --> src/bin/fib.rs:21:13 [INFO] [stdout] | [INFO] [stdout] 21 | let mut pre2 = 1; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/bin/fib.rs:23:9 [INFO] [stdout] | [INFO] [stdout] 23 | for i in 3..=n { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.87s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.5 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1` [INFO] running `Command { std: "docker" "inspect" "79d16aec6e34f6e187bd205f3a680745b3cf885fd874ae3a86b226daba2f6dcd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "79d16aec6e34f6e187bd205f3a680745b3cf885fd874ae3a86b226daba2f6dcd", kill_on_drop: false }` [INFO] [stdout] 79d16aec6e34f6e187bd205f3a680745b3cf885fd874ae3a86b226daba2f6dcd