[INFO] cloning repository https://github.com/alayers2/rust_cookbook
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alayers2/rust_cookbook" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falayers2%2Frust_cookbook", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falayers2%2Frust_cookbook'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 56d64c0b923df64507e17b02cbabfca61e1ef7f9
[INFO] building alayers2/rust_cookbook against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falayers2%2Frust_cookbook" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alayers2/rust_cookbook on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/alayers2/rust_cookbook
[INFO] finished tweaking git repo https://github.com/alayers2/rust_cookbook
[INFO] tweaked toml for git repo https://github.com/alayers2/rust_cookbook written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/alayers2/rust_cookbook 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded getrandom v0.1.8
[INFO] [stderr]   Downloaded rand_distr v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 16bedfcf2927d934723df790c38b8cd325503e84a415163066fe37bb3b9ecd7f
[INFO] running `Command { std: "docker" "start" "-a" "16bedfcf2927d934723df790c38b8cd325503e84a415163066fe37bb3b9ecd7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16bedfcf2927d934723df790c38b8cd325503e84a415163066fe37bb3b9ecd7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16bedfcf2927d934723df790c38b8cd325503e84a415163066fe37bb3b9ecd7f", kill_on_drop: false }`
[INFO] [stdout] 16bedfcf2927d934723df790c38b8cd325503e84a415163066fe37bb3b9ecd7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d0260aece92fdc005003ad20e08d056f7b00b1fcb022fbff2a7db6243025d952
[INFO] running `Command { std: "docker" "start" "-a" "d0260aece92fdc005003ad20e08d056f7b00b1fcb022fbff2a7db6243025d952", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling scopeguard v1.0.0
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling adler32 v1.0.4
[INFO] [stderr]    Compiling unicode-width v0.1.6
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling miniz_oxide v0.3.5
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling c2-chacha v0.2.2
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]    Compiling crossbeam-channel v0.4.0
[INFO] [stderr]    Compiling crossbeam-queue v0.2.0
[INFO] [stderr]    Compiling getrandom v0.1.8
[INFO] [stderr]    Compiling filetime v0.2.8
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling flate2 v1.0.13
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling tar v0.4.26
[INFO] [stderr]    Compiling rand_core v0.5.0
[INFO] [stderr]    Compiling crossbeam-deque v0.7.2
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.0
[INFO] [stderr]    Compiling crossbeam v0.7.3
[INFO] [stderr]    Compiling rand_distr v0.2.1
[INFO] [stderr]    Compiling rust_cookbook v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Style`
[INFO] [stdout]  --> src/main.rs:8:24
[INFO] [stdout]   |
[INFO] [stdout] 8 | use ansi_term::{Color, Style};
[INFO] [stdout]   |                        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `x` and `y` are never read
[INFO] [stdout]   --> src/chapter1/rand_num.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 53 | struct Point {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 54 |     x: i32,
[INFO] [stdout]    |     ^
[INFO] [stdout] 55 |     y: i32
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Point` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.08s
[INFO] running `Command { std: "docker" "inspect" "d0260aece92fdc005003ad20e08d056f7b00b1fcb022fbff2a7db6243025d952", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0260aece92fdc005003ad20e08d056f7b00b1fcb022fbff2a7db6243025d952", kill_on_drop: false }`
[INFO] [stdout] d0260aece92fdc005003ad20e08d056f7b00b1fcb022fbff2a7db6243025d952
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3efb2385c0080f367d4a6e544e9f7b3f439ecb7b15de9ef5bb7242051177da70
[INFO] running `Command { std: "docker" "start" "-a" "3efb2385c0080f367d4a6e544e9f7b3f439ecb7b15de9ef5bb7242051177da70", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_cookbook v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Style`
[INFO] [stdout]  --> src/main.rs:8:24
[INFO] [stdout]   |
[INFO] [stdout] 8 | use ansi_term::{Color, Style};
[INFO] [stdout]   |                        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `x` and `y` are never read
[INFO] [stdout]   --> src/chapter1/rand_num.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 53 | struct Point {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 54 |     x: i32,
[INFO] [stdout]    |     ^
[INFO] [stdout] 55 |     y: i32
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Point` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "3efb2385c0080f367d4a6e544e9f7b3f439ecb7b15de9ef5bb7242051177da70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3efb2385c0080f367d4a6e544e9f7b3f439ecb7b15de9ef5bb7242051177da70", kill_on_drop: false }`
[INFO] [stdout] 3efb2385c0080f367d4a6e544e9f7b3f439ecb7b15de9ef5bb7242051177da70