[INFO] cloning repository https://github.com/yangxingwu/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/yangxingwu/rust-book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyangxingwu%2Frust-book", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyangxingwu%2Frust-book'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7b234222560ac6aa0fa2786b529c0a922677651b
[INFO] checking yangxingwu/rust-book against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyangxingwu%2Frust-book" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yangxingwu/rust-book on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yangxingwu/rust-book
[INFO] finished tweaking git repo https://github.com/yangxingwu/rust-book
[INFO] tweaked toml for git repo https://github.com/yangxingwu/rust-book written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/yangxingwu/rust-book already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c3ac6a2d4a89c73ef224487fa9204f853c2c68b1ce6157ae97c4b01c97285f8
[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" "9c3ac6a2d4a89c73ef224487fa9204f853c2c68b1ce6157ae97c4b01c97285f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c3ac6a2d4a89c73ef224487fa9204f853c2c68b1ce6157ae97c4b01c97285f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c3ac6a2d4a89c73ef224487fa9204f853c2c68b1ce6157ae97c4b01c97285f8", kill_on_drop: false }`
[INFO] [stdout] 9c3ac6a2d4a89c73ef224487fa9204f853c2c68b1ce6157ae97c4b01c97285f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 61262b7b43cbf645f16df64741bd424f0ed3d2ecb5276bbd4f013aa6980a1ef7
[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" "61262b7b43cbf645f16df64741bd424f0ed3d2ecb5276bbd4f013aa6980a1ef7", kill_on_drop: false }`
[INFO] [stderr]     Checking strsim v0.5.2
[INFO] [stderr]     Checking lazy_static v0.2.10
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking walkdir v0.1.8
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking docopt v0.6.86
[INFO] [stderr]     Checking rust-book v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]   --> tools/src/bin/lfp.rs:10:24
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::io::{BufRead, Write};
[INFO] [stdout]    |                        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> tools/src/bin/concat_chapters.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | / lazy_static! {
[INFO] [stdout] 20 | |     static ref MATCHERS: Vec<(Regex, &'static str)> = {
[INFO] [stdout] 21 | |         PATTERNS.iter()
[INFO] [stdout] 22 | |             .map(|&(expr, repl)| (Regex::new(expr).unwrap(), repl))
[INFO] [stdout] 23 | |             .collect()
[INFO] [stdout] 24 | |     };
[INFO] [stdout] 25 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> tools/src/bin/concat_chapters.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | / lazy_static! {
[INFO] [stdout] 20 | |     static ref MATCHERS: Vec<(Regex, &'static str)> = {
[INFO] [stdout] 21 | |         PATTERNS.iter()
[INFO] [stdout] 22 | |             .map(|&(expr, repl)| (Regex::new(expr).unwrap(), repl))
[INFO] [stdout] 23 | |             .collect()
[INFO] [stdout] 24 | |     };
[INFO] [stdout] 25 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> tools/src/bin/concat_chapters.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | / lazy_static! {
[INFO] [stdout] 20 | |     static ref MATCHERS: Vec<(Regex, &'static str)> = {
[INFO] [stdout] 21 | |         PATTERNS.iter()
[INFO] [stdout] 22 | |             .map(|&(expr, repl)| (Regex::new(expr).unwrap(), repl))
[INFO] [stdout] 23 | |             .collect()
[INFO] [stdout] 24 | |     };
[INFO] [stdout] 25 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> tools/src/bin/concat_chapters.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | / lazy_static! {
[INFO] [stdout] 20 | |     static ref MATCHERS: Vec<(Regex, &'static str)> = {
[INFO] [stdout] 21 | |         PATTERNS.iter()
[INFO] [stdout] 22 | |             .map(|&(expr, repl)| (Regex::new(expr).unwrap(), repl))
[INFO] [stdout] 23 | |             .collect()
[INFO] [stdout] 24 | |     };
[INFO] [stdout] 25 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]   --> tools/src/bin/lfp.rs:10:24
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::io::{BufRead, Write};
[INFO] [stdout]    |                        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.32s
[INFO] running `Command { std: "docker" "inspect" "61262b7b43cbf645f16df64741bd424f0ed3d2ecb5276bbd4f013aa6980a1ef7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61262b7b43cbf645f16df64741bd424f0ed3d2ecb5276bbd4f013aa6980a1ef7", kill_on_drop: false }`
[INFO] [stdout] 61262b7b43cbf645f16df64741bd424f0ed3d2ecb5276bbd4f013aa6980a1ef7