[INFO] fetching crate spock 0.1.0...
[INFO] building spock-0.1.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate spock 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate spock 0.1.0
[INFO] finished tweaking crates.io crate spock 0.1.0
[INFO] tweaked toml for crates.io crate spock 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate spock 0.1.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate spock 0.1.0 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 567fedc1327cd4f694042b33edcc28db2195ea0ad6012c781878929b19115215
[INFO] running `Command { std: "docker" "start" "-a" "567fedc1327cd4f694042b33edcc28db2195ea0ad6012c781878929b19115215", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "567fedc1327cd4f694042b33edcc28db2195ea0ad6012c781878929b19115215", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "567fedc1327cd4f694042b33edcc28db2195ea0ad6012c781878929b19115215", kill_on_drop: false }`
[INFO] [stdout] 567fedc1327cd4f694042b33edcc28db2195ea0ad6012c781878929b19115215
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a9de5f17ffe16be5f9a978d6ea093fd44d9ab948eaf3db9ad292f1db71d7db9b
[INFO] running `Command { std: "docker" "start" "-a" "a9de5f17ffe16be5f9a978d6ea093fd44d9ab948eaf3db9ad292f1db71d7db9b", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling num v0.4.3
[INFO] [stderr]    Compiling spock v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]  --> src/logic/chemistry/molecule/mod.rs:9:18
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn add(self, rhs: Self) -> Self::Output {
[INFO] [stdout]   |                  ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]   --> src/logic/chemistry/molecule/mod.rs:15:18
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn add(self, rhs: Element) -> Self::Output {
[INFO] [stdout]    |                  ^^^
[INFO] [stdout]    |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn add(self, _rhs: Element) -> Self::Output {
[INFO] [stdout]    |                  +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `H`
[INFO] [stdout]    |
[INFO] [stdout] 15 -     fn add(self, rhs: Element) -> Self::Output {
[INFO] [stdout] 15 +     fn add(self, logic::chemistry::element::elements::H: Element) -> Self::Output {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]   --> src/logic/chemistry/element/mod.rs:23:18
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn add(self, rhs: Self) -> Self::Output {
[INFO] [stdout]    |                  ^^^
[INFO] [stdout]    |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn add(self, _rhs: Self) -> Self::Output {
[INFO] [stdout]    |                  +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `H`
[INFO] [stdout]    |
[INFO] [stdout] 23 -     fn add(self, rhs: Self) -> Self::Output {
[INFO] [stdout] 23 +     fn add(self, logic::chemistry::element::elements::H: Self) -> Self::Output {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `atomic_number` is never read
[INFO] [stdout]   --> src/logic/chemistry/element/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct Element {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 10 |     symbol: Symbol,
[INFO] [stdout] 11 |     atomic_number: AtomicNumber,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.06s
[INFO] running `Command { std: "docker" "inspect" "a9de5f17ffe16be5f9a978d6ea093fd44d9ab948eaf3db9ad292f1db71d7db9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9de5f17ffe16be5f9a978d6ea093fd44d9ab948eaf3db9ad292f1db71d7db9b", kill_on_drop: false }`
[INFO] [stdout] a9de5f17ffe16be5f9a978d6ea093fd44d9ab948eaf3db9ad292f1db71d7db9b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d226b94f4896b5521f289db2c97c620e97576f1786694b29325c0c8577b4d17b
[INFO] running `Command { std: "docker" "start" "-a" "d226b94f4896b5521f289db2c97c620e97576f1786694b29325c0c8577b4d17b", kill_on_drop: false }`
[INFO] [stderr]    Compiling spock v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]  --> src/logic/chemistry/molecule/mod.rs:9:18
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn add(self, rhs: Self) -> Self::Output {
[INFO] [stdout]   |                  ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]   --> src/logic/chemistry/molecule/mod.rs:15:18
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn add(self, rhs: Element) -> Self::Output {
[INFO] [stdout]    |                  ^^^
[INFO] [stdout]    |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn add(self, _rhs: Element) -> Self::Output {
[INFO] [stdout]    |                  +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `H`
[INFO] [stdout]    |
[INFO] [stdout] 15 -     fn add(self, rhs: Element) -> Self::Output {
[INFO] [stdout] 15 +     fn add(self, logic::chemistry::element::elements::H: Element) -> Self::Output {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]   --> src/logic/chemistry/element/mod.rs:23:18
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn add(self, rhs: Self) -> Self::Output {
[INFO] [stdout]    |                  ^^^
[INFO] [stdout]    |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn add(self, _rhs: Self) -> Self::Output {
[INFO] [stdout]    |                  +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `H`
[INFO] [stdout]    |
[INFO] [stdout] 23 -     fn add(self, rhs: Self) -> Self::Output {
[INFO] [stdout] 23 +     fn add(self, logic::chemistry::element::elements::H: Self) -> Self::Output {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `atomic_number` is never read
[INFO] [stdout]   --> src/logic/chemistry/element/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct Element {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 10 |     symbol: Symbol,
[INFO] [stdout] 11 |     atomic_number: AtomicNumber,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `molecule`
[INFO] [stdout]   --> src/lib.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let molecule = elements::H + elements::H;
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_molecule`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `molecule`
[INFO] [stdout]   --> src/lib.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let molecule = elements::H + elements::H;
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_molecule`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]  --> src/logic/chemistry/molecule/mod.rs:9:18
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn add(self, rhs: Self) -> Self::Output {
[INFO] [stdout]   |                  ^^^ help: if this is intentional, prefix it with an underscore: `_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]   --> src/logic/chemistry/molecule/mod.rs:15:18
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn add(self, rhs: Element) -> Self::Output {
[INFO] [stdout]    |                  ^^^
[INFO] [stdout]    |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn add(self, _rhs: Element) -> Self::Output {
[INFO] [stdout]    |                  +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `H`
[INFO] [stdout]    |
[INFO] [stdout] 15 -     fn add(self, rhs: Element) -> Self::Output {
[INFO] [stdout] 15 +     fn add(self, logic::chemistry::element::elements::H: Element) -> Self::Output {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rhs`
[INFO] [stdout]   --> src/logic/chemistry/element/mod.rs:23:18
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn add(self, rhs: Self) -> Self::Output {
[INFO] [stdout]    |                  ^^^
[INFO] [stdout]    |
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn add(self, _rhs: Self) -> Self::Output {
[INFO] [stdout]    |                  +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `H`
[INFO] [stdout]    |
[INFO] [stdout] 23 -     fn add(self, rhs: Self) -> Self::Output {
[INFO] [stdout] 23 +     fn add(self, logic::chemistry::element::elements::H: Self) -> Self::Output {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `atomic_number` is never read
[INFO] [stdout]   --> src/logic/chemistry/element/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct Element {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 10 |     symbol: Symbol,
[INFO] [stdout] 11 |     atomic_number: AtomicNumber,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "d226b94f4896b5521f289db2c97c620e97576f1786694b29325c0c8577b4d17b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d226b94f4896b5521f289db2c97c620e97576f1786694b29325c0c8577b4d17b", kill_on_drop: false }`
[INFO] [stdout] d226b94f4896b5521f289db2c97c620e97576f1786694b29325c0c8577b4d17b