[INFO] cloning repository https://github.com/elycruz/rust-book [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/elycruz/rust-book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Felycruz%2Frust-book", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Felycruz%2Frust-book'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 437000fc30c4b3e08e8c37934a38856fc5960efd [INFO] checking elycruz/rust-book against try#18c1d185ac7a6a3bf399296b35e4b2736809a756 for pr-146972 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Felycruz%2Frust-book" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/elycruz/rust-book [INFO] finished tweaking git repo https://github.com/elycruz/rust-book [INFO] tweaked toml for git repo https://github.com/elycruz/rust-book written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/elycruz/rust-book on toolchain 18c1d185ac7a6a3bf399296b35e4b2736809a756 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+18c1d185ac7a6a3bf399296b35e4b2736809a756" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/elycruz/rust-book 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" "+18c1d185ac7a6a3bf399296b35e4b2736809a756" "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 wasi v0.5.0 [INFO] [stderr] Downloaded memchr v2.2.1 [INFO] [stderr] Downloaded getrandom v0.1.11 [INFO] [stderr] Downloaded atty v0.2.13 [INFO] [stderr] Downloaded vec_map v0.8.1 [INFO] [stderr] Downloaded rand_chacha v0.2.1 [INFO] [stderr] Downloaded ansi_term v0.11.0 [INFO] [stderr] Downloaded ppv-lite86 v0.2.5 [INFO] [stderr] Downloaded c2-chacha v0.2.2 [INFO] [stderr] Downloaded unicode-width v0.1.6 [INFO] [stderr] Downloaded rand v0.7.0 [INFO] [stderr] Downloaded aho-corasick v0.7.6 [INFO] [stderr] Downloaded regex v1.2.1 [INFO] [stderr] Downloaded regex-syntax v0.6.11 [INFO] [stderr] Downloaded clap v2.33.0 [INFO] [stderr] Downloaded libc v0.2.62 [INFO] [stderr] Downloaded winapi v0.3.8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+18c1d185ac7a6a3bf399296b35e4b2736809a756" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ac7efe2ec032025768923fd6fad70dc465a12b20570973b87aa90bbab67fab78 [INFO] running `Command { std: "docker" "start" "-a" "ac7efe2ec032025768923fd6fad70dc465a12b20570973b87aa90bbab67fab78", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ac7efe2ec032025768923fd6fad70dc465a12b20570973b87aa90bbab67fab78", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ac7efe2ec032025768923fd6fad70dc465a12b20570973b87aa90bbab67fab78", kill_on_drop: false }` [INFO] [stdout] ac7efe2ec032025768923fd6fad70dc465a12b20570973b87aa90bbab67fab78 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+18c1d185ac7a6a3bf399296b35e4b2736809a756" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 94a63a67c5c2c3980195c052f50116d915ced5844fbce4498dcee8167c515258 [INFO] running `Command { std: "docker" "start" "-a" "94a63a67c5c2c3980195c052f50116d915ced5844fbce4498dcee8167c515258", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.62 [INFO] [stderr] Compiling getrandom v0.1.11 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Checking cfg-if v0.1.9 [INFO] [stderr] Compiling bitflags v1.1.0 [INFO] [stderr] Checking ppv-lite86 v0.2.5 [INFO] [stderr] Checking unicode-width v0.1.6 [INFO] [stderr] Checking regex-syntax v0.6.11 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking c2-chacha v0.2.2 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking aho-corasick v0.7.6 [INFO] [stderr] Checking atty v0.2.13 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking rand_chacha v0.2.1 [INFO] [stderr] Checking rand v0.7.0 [INFO] [stderr] Checking regex v1.2.1 [INFO] [stderr] Checking rust-book v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::collections::HashMap` [INFO] [stdout] --> chp8/company_directory.rs:178:9 [INFO] [stdout] | [INFO] [stdout] 178 | use std::collections::HashMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::thread::JoinHandle` [INFO] [stdout] --> chp16/chp16_1.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::thread::JoinHandle; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `maximum` is never used [INFO] [stdout] --> chp8/main.rs:45:4 [INFO] [stdout] | [INFO] [stdout] 45 | fn maximum(xs: &Vec) -> Option<&T> { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `mean` is never used [INFO] [stdout] --> chp8/mean_and_mode.rs:3:4 [INFO] [stdout] | [INFO] [stdout] 3 | fn mean(v: &Vec) -> f64 { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `mode` is never used [INFO] [stdout] --> chp8/mean_and_mode.rs:11:4 [INFO] [stdout] | [INFO] [stdout] 11 | fn mode(vs: &Vec) -> f64 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> chp8/mean_and_mode.rs:45:26 [INFO] [stdout] | [INFO] [stdout] 45 | Err(e) => panic!(e) [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 45 | Err(e) => panic!("{}", e) [INFO] [stdout] | +++++ [INFO] [stdout] help: or use std::panic::panic_any instead [INFO] [stdout] | [INFO] [stdout] 45 - Err(e) => panic!(e) [INFO] [stdout] 45 + Err(e) => std::panic::panic_any(e) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static `FIVE_O` is never used [INFO] [stdout] --> chp3/fib_lib.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | static FIVE_O: f64 = 5.0; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static `O_FIVE` is never used [INFO] [stdout] --> chp3/fib_lib.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | static O_FIVE: f64 = 0.5; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `get_phi` is never used [INFO] [stdout] --> chp3/fib_lib.rs:12:4 [INFO] [stdout] | [INFO] [stdout] 12 | fn get_phi() -> f64 { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `nth_fib` is never used [INFO] [stdout] --> chp3/fib_lib.rs:31:8 [INFO] [stdout] | [INFO] [stdout] 31 | pub fn nth_fib(nth: i32) -> i64 { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> chp8/mean_and_mode.rs:45:26 [INFO] [stdout] | [INFO] [stdout] 45 | Err(e) => panic!(e) [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 45 | Err(e) => panic!("{}", e) [INFO] [stdout] | +++++ [INFO] [stdout] help: or use std::panic::panic_any instead [INFO] [stdout] | [INFO] [stdout] 45 - Err(e) => panic!(e) [INFO] [stdout] 45 + Err(e) => std::panic::panic_any(e) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::thread::JoinHandle` [INFO] [stdout] --> chp16/chp16_1.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::thread::JoinHandle; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.98s [INFO] running `Command { std: "docker" "inspect" "94a63a67c5c2c3980195c052f50116d915ced5844fbce4498dcee8167c515258", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "94a63a67c5c2c3980195c052f50116d915ced5844fbce4498dcee8167c515258", kill_on_drop: false }` [INFO] [stdout] 94a63a67c5c2c3980195c052f50116d915ced5844fbce4498dcee8167c515258