[INFO] cloning repository https://github.com/Eaeajj/sicp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Eaeajj/sicp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEaeajj%2Fsicp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEaeajj%2Fsicp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4d5a2d9cac12afea9a2fd67d46c89029457bdfa1
[INFO] building Eaeajj/sicp 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%2FEaeajj%2Fsicp" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Eaeajj/sicp 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/Eaeajj/sicp
[INFO] finished tweaking git repo https://github.com/Eaeajj/sicp
[INFO] tweaked toml for git repo https://github.com/Eaeajj/sicp written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Eaeajj/sicp 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 gcd v2.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] b32dbed93569588005a3fc9e24cb4232a8abaa556b3e0531bb05d2c7571a62f7
[INFO] running `Command { std: "docker" "start" "-a" "b32dbed93569588005a3fc9e24cb4232a8abaa556b3e0531bb05d2c7571a62f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b32dbed93569588005a3fc9e24cb4232a8abaa556b3e0531bb05d2c7571a62f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b32dbed93569588005a3fc9e24cb4232a8abaa556b3e0531bb05d2c7571a62f7", kill_on_drop: false }`
[INFO] [stdout] b32dbed93569588005a3fc9e24cb4232a8abaa556b3e0531bb05d2c7571a62f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] bdf2568fc342a06a2ab44e8c1659178b7932293a983f62a760547c31fd596489
[INFO] running `Command { std: "docker" "start" "-a" "bdf2568fc342a06a2ab44e8c1659178b7932293a983f62a760547c31fd596489", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling gcd v2.1.0
[INFO] [stderr]    Compiling num-complex v0.4.2
[INFO] [stderr]    Compiling num v0.4.0
[INFO] [stderr]    Compiling second v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Rat` is never constructed
[INFO] [stdout]  --> src/chapter_2/sol2_1.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Rat {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `print`, `add`, `sub`, `mul`, and `div` are never used
[INFO] [stdout]   --> src/chapter_2/sol2_1.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl Rat {
[INFO] [stdout]    | -------- associated items in this implementation
[INFO] [stdout] 10 |     fn new(nom: i32, den: i32 ) -> Rat {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     fn print(&self) -> &Rat {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     fn add(&self, rat: Rat) -> Rat {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn sub(&self, rat: Rat) -> Rat {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     fn mul(&self, rat: Rat) -> Rat {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     fn div(&self, rat: Rat) -> Rat {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve2_1` is never used
[INFO] [stdout]   --> src/chapter_2/sol2_1.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub fn solve2_1() {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.17s
[INFO] running `Command { std: "docker" "inspect" "bdf2568fc342a06a2ab44e8c1659178b7932293a983f62a760547c31fd596489", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdf2568fc342a06a2ab44e8c1659178b7932293a983f62a760547c31fd596489", kill_on_drop: false }`
[INFO] [stdout] bdf2568fc342a06a2ab44e8c1659178b7932293a983f62a760547c31fd596489
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 3fe800bf2049b7bea82d31f2da2757d1fd8884d896db23d2670a3a6d901f843b
[INFO] running `Command { std: "docker" "start" "-a" "3fe800bf2049b7bea82d31f2da2757d1fd8884d896db23d2670a3a6d901f843b", kill_on_drop: false }`
[INFO] [stderr]    Compiling second v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Rat` is never constructed
[INFO] [stdout]  --> src/chapter_2/sol2_1.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Rat {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `print`, `add`, `sub`, `mul`, and `div` are never used
[INFO] [stdout]   --> src/chapter_2/sol2_1.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl Rat {
[INFO] [stdout]    | -------- associated items in this implementation
[INFO] [stdout] 10 |     fn new(nom: i32, den: i32 ) -> Rat {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     fn print(&self) -> &Rat {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     fn add(&self, rat: Rat) -> Rat {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     fn sub(&self, rat: Rat) -> Rat {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     fn mul(&self, rat: Rat) -> Rat {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     fn div(&self, rat: Rat) -> Rat {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve2_1` is never used
[INFO] [stdout]   --> src/chapter_2/sol2_1.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub fn solve2_1() {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "3fe800bf2049b7bea82d31f2da2757d1fd8884d896db23d2670a3a6d901f843b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fe800bf2049b7bea82d31f2da2757d1fd8884d896db23d2670a3a6d901f843b", kill_on_drop: false }`
[INFO] [stdout] 3fe800bf2049b7bea82d31f2da2757d1fd8884d896db23d2670a3a6d901f843b