[INFO] fetching crate abstract-calculus 0.1.5...
[INFO] checking abstract-calculus-0.1.5 against master#e59540968e0c6fc3c37d92a639b83fc8fcee5e81 for pr-114559
[INFO] extracting crate abstract-calculus 0.1.5 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate abstract-calculus 0.1.5 on toolchain e59540968e0c6fc3c37d92a639b83fc8fcee5e81
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e59540968e0c6fc3c37d92a639b83fc8fcee5e81" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate abstract-calculus 0.1.5
[INFO] finished tweaking crates.io crate abstract-calculus 0.1.5
[INFO] tweaked toml for crates.io crate abstract-calculus 0.1.5 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e59540968e0c6fc3c37d92a639b83fc8fcee5e81" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e59540968e0c6fc3c37d92a639b83fc8fcee5e81" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+e59540968e0c6fc3c37d92a639b83fc8fcee5e81" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 449073e9a72899b35b6d533a6e2e8f9d069e6e40af3e0c418f9c6f19a07085f3
[INFO] running `Command { std: "docker" "start" "-a" "449073e9a72899b35b6d533a6e2e8f9d069e6e40af3e0c418f9c6f19a07085f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "449073e9a72899b35b6d533a6e2e8f9d069e6e40af3e0c418f9c6f19a07085f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "449073e9a72899b35b6d533a6e2e8f9d069e6e40af3e0c418f9c6f19a07085f3", kill_on_drop: false }`
[INFO] [stdout] 449073e9a72899b35b6d533a6e2e8f9d069e6e40af3e0c418f9c6f19a07085f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "-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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+e59540968e0c6fc3c37d92a639b83fc8fcee5e81" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6fea0b603fa5f54caf6eb20f84323596b91bd0bdf3f0793f646361ed77711fbf
[INFO] running `Command { std: "docker" "start" "-a" "6fea0b603fa5f54caf6eb20f84323596b91bd0bdf3f0793f646361ed77711fbf", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking abstract-calculus v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/term.rs:429:35
[INFO] [stdout]     |
[INFO] [stdout] 429 |         , lets_set : &mut HashSet<(u32)>
[INFO] [stdout]     |                                   ^   ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 429 -         , lets_set : &mut HashSet<(u32)>
[INFO] [stdout] 429 +         , lets_set : &mut HashSet<u32>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/term.rs:429:35
[INFO] [stdout]     |
[INFO] [stdout] 429 |         , lets_set : &mut HashSet<(u32)>
[INFO] [stdout]     |                                   ^   ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 429 -         , lets_set : &mut HashSet<(u32)>
[INFO] [stdout] 429 +         , lets_set : &mut HashSet<u32>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/term.rs:208:37
[INFO] [stdout]     |
[INFO] [stdout] 208 | ...                   let mut name = nam.clone().to_vec();
[INFO] [stdout]     |                           ----^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/term.rs:441:25
[INFO] [stdout]     |
[INFO] [stdout] 441 |                     let mut lam = Lam{nam: nam, bod: Box::new(bod)};
[INFO] [stdout]     |                         ----^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/term.rs:208:37
[INFO] [stdout]     |
[INFO] [stdout] 208 | ...                   let mut name = nam.clone().to_vec();
[INFO] [stdout]     |                           ----^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/term.rs:208:51
[INFO] [stdout]     |
[INFO] [stdout] 208 | ...                   let mut name = nam.clone().to_vec();
[INFO] [stdout]     |                                         ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `[u8]` does not implement `Clone`, so calling `clone` on `&[u8]` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/term.rs:441:25
[INFO] [stdout]     |
[INFO] [stdout] 441 |                     let mut lam = Lam{nam: nam, bod: Box::new(bod)};
[INFO] [stdout]     |                         ----^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/term.rs:208:51
[INFO] [stdout]     |
[INFO] [stdout] 208 | ...                   let mut name = nam.clone().to_vec();
[INFO] [stdout]     |                                         ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `[u8]` does not implement `Clone`, so calling `clone` on `&[u8]` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/term.rs:429:35
[INFO] [stdout]     |
[INFO] [stdout] 429 |         , lets_set : &mut HashSet<(u32)>
[INFO] [stdout]     |                                   ^   ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 429 -         , lets_set : &mut HashSet<(u32)>
[INFO] [stdout] 429 +         , lets_set : &mut HashSet<u32>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/term.rs:429:35
[INFO] [stdout]     |
[INFO] [stdout] 429 |         , lets_set : &mut HashSet<(u32)>
[INFO] [stdout]     |                                   ^   ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 429 -         , lets_set : &mut HashSet<(u32)>
[INFO] [stdout] 429 +         , lets_set : &mut HashSet<u32>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/term.rs:208:37
[INFO] [stdout]     |
[INFO] [stdout] 208 | ...                   let mut name = nam.clone().to_vec();
[INFO] [stdout]     |                           ----^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/term.rs:441:25
[INFO] [stdout]     |
[INFO] [stdout] 441 |                     let mut lam = Lam{nam: nam, bod: Box::new(bod)};
[INFO] [stdout]     |                         ----^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/term.rs:208:51
[INFO] [stdout]     |
[INFO] [stdout] 208 | ...                   let mut name = nam.clone().to_vec();
[INFO] [stdout]     |                                         ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `[u8]` does not implement `Clone`, so calling `clone` on `&[u8]` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/term.rs:208:37
[INFO] [stdout]     |
[INFO] [stdout] 208 | ...                   let mut name = nam.clone().to_vec();
[INFO] [stdout]     |                           ----^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/term.rs:441:25
[INFO] [stdout]     |
[INFO] [stdout] 441 |                     let mut lam = Lam{nam: nam, bod: Box::new(bod)};
[INFO] [stdout]     |                         ----^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/term.rs:208:51
[INFO] [stdout]     |
[INFO] [stdout] 208 | ...                   let mut name = nam.clone().to_vec();
[INFO] [stdout]     |                                         ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `[u8]` does not implement `Clone`, so calling `clone` on `&[u8]` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `Command { std: "docker" "inspect" "6fea0b603fa5f54caf6eb20f84323596b91bd0bdf3f0793f646361ed77711fbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fea0b603fa5f54caf6eb20f84323596b91bd0bdf3f0793f646361ed77711fbf", kill_on_drop: false }`
[INFO] [stdout] 6fea0b603fa5f54caf6eb20f84323596b91bd0bdf3f0793f646361ed77711fbf
