[INFO] fetching crate nar 0.0.8...
[INFO] checking nar-0.0.8 against try#72f88fc4e9458f89516a0b8b0868f3718aec5b47 for pr-74989
[INFO] extracting crate nar 0.0.8 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate nar 0.0.8 on toolchain 72f88fc4e9458f89516a0b8b0868f3718aec5b47
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nar 0.0.8
[INFO] finished tweaking crates.io crate nar 0.0.8
[INFO] tweaked toml for crates.io crate nar 0.0.8 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate nar 0.0.8 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded minitt-util v0.2.3
[INFO] [stderr]   Downloaded voile-util v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4e63aa6836c055acfc377ebeb19894fd7ca15a25eb399b5bf2add0dec3ed7188
[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" "4e63aa6836c055acfc377ebeb19894fd7ca15a25eb399b5bf2add0dec3ed7188", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e63aa6836c055acfc377ebeb19894fd7ca15a25eb399b5bf2add0dec3ed7188", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e63aa6836c055acfc377ebeb19894fd7ca15a25eb399b5bf2add0dec3ed7188", kill_on_drop: false }`
[INFO] [stdout] 4e63aa6836c055acfc377ebeb19894fd7ca15a25eb399b5bf2add0dec3ed7188
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 14801ad3cfde86848142f16cdaa58c15c3e7384cd3b8832f39a70fa6a7c7acf6
[INFO] running `Command { std: "docker" "start" "-a" "14801ad3cfde86848142f16cdaa58c15c3e7384cd3b8832f39a70fa6a7c7acf6", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]    Compiling pest v2.1.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling pest_meta v2.1.2
[INFO] [stderr]     Checking rustyline v6.0.0
[INFO] [stderr]    Compiling syn-mid v0.4.0
[INFO] [stderr]    Compiling pest_generator v2.1.1
[INFO] [stderr]    Compiling rustversion v1.0.1
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking voile-util v0.2.2
[INFO] [stderr]    Compiling proc-macro-error v0.4.4
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.3
[INFO] [stderr]    Compiling structopt-derive v0.4.0
[INFO] [stderr]     Checking structopt v0.3.7
[INFO] [stderr]     Checking minitt-util v0.2.3
[INFO] [stderr]     Checking nar v0.0.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `delta1`
[INFO] [stdout]   --> src/check/rules/clause/split.rs:32:10
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let (mut delta1, dom, delta2) = split_tele(lhs.tele, ix);
[INFO] [stdout]    |          ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_delta1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `delta2`
[INFO] [stdout]   --> src/check/rules/clause/split.rs:32:27
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let (mut delta1, dom, delta2) = split_tele(lhs.tele, ix);
[INFO] [stdout]    |                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_delta2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/check/rules/clause/split.rs:33:10
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let (data, tcs) = expect_data(tcs, dom.ty)?;
[INFO] [stdout]    |          ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cons_params`
[INFO] [stdout]   --> src/check/rules/clause/split.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let cons_params = match tcs.def(head.cons_ix) {
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cons_params`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_forced`
[INFO] [stdout]   --> src/check/rules/clause/split.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     is_forced: bool,
[INFO] [stdout]    |     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_forced`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pats`
[INFO] [stdout]   --> src/check/rules/clause/split.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pats: Vec<AbsPat>,
[INFO] [stdout]    |     ^^^^ help: if this is intentional, prefix it with an underscore: `_pats`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tcs`
[INFO] [stdout]    --> src/check/pats/mat.rs:126:14
[INFO] [stdout]     |
[INFO] [stdout] 126 | fn match_pat(tcs: &TCS, p: CorePat, t: Term) -> (Match, Term) {
[INFO] [stdout]     |              ^^^ help: if this is intentional, prefix it with an underscore: `_tcs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `delta1`
[INFO] [stdout]   --> src/check/rules/clause/split.rs:32:10
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let (mut delta1, dom, delta2) = split_tele(lhs.tele, ix);
[INFO] [stdout]    |          ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_delta1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `delta2`
[INFO] [stdout]   --> src/check/rules/clause/split.rs:32:27
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let (mut delta1, dom, delta2) = split_tele(lhs.tele, ix);
[INFO] [stdout]    |                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_delta2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/check/rules/clause/split.rs:33:10
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let (data, tcs) = expect_data(tcs, dom.ty)?;
[INFO] [stdout]    |          ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cons_params`
[INFO] [stdout]   --> src/check/rules/clause/split.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let cons_params = match tcs.def(head.cons_ix) {
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cons_params`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_forced`
[INFO] [stdout]   --> src/check/rules/clause/split.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     is_forced: bool,
[INFO] [stdout]    |     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_forced`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pats`
[INFO] [stdout]   --> src/check/rules/clause/split.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pats: Vec<AbsPat>,
[INFO] [stdout]    |     ^^^^ help: if this is intentional, prefix it with an underscore: `_pats`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tcs`
[INFO] [stdout]    --> src/check/pats/mat.rs:126:14
[INFO] [stdout]     |
[INFO] [stdout] 126 | fn match_pat(tcs: &TCS, p: CorePat, t: Term) -> (Match, Term) {
[INFO] [stdout]     |              ^^^ help: if this is intentional, prefix it with an underscore: `_tcs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/check/rules/clause/split.rs:32:10
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let (mut delta1, dom, delta2) = split_tele(lhs.tele, ix);
[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/check/rules/clause/split.rs:32:10
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let (mut delta1, dom, delta2) = split_tele(lhs.tele, ix);
[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: function is never used: `insert_implicit_pats`
[INFO] [stdout]   --> src/check/rules/clause/state.rs:69:15
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub(super) fn insert_implicit_pats(pats: Vec<AbsCopat>, tele: &TeleS) -> Vec<AbsCopat> {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `insert_implicit_pats`
[INFO] [stdout]   --> src/check/rules/clause/state.rs:69:15
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub(super) fn insert_implicit_pats(pats: Vec<AbsCopat>, tele: &TeleS) -> Vec<AbsCopat> {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 04s
[INFO] running `Command { std: "docker" "inspect" "14801ad3cfde86848142f16cdaa58c15c3e7384cd3b8832f39a70fa6a7c7acf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14801ad3cfde86848142f16cdaa58c15c3e7384cd3b8832f39a70fa6a7c7acf6", kill_on_drop: false }`
[INFO] [stdout] 14801ad3cfde86848142f16cdaa58c15c3e7384cd3b8832f39a70fa6a7c7acf6
