[INFO] fetching crate piscem-infer 0.6.0...
[INFO] building piscem-infer-0.6.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate piscem-infer 0.6.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate piscem-infer 0.6.0
[INFO] finished tweaking crates.io crate piscem-infer 0.6.0
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[INFO] validating manifest of crates.io crate piscem-infer 0.6.0 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
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[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] warning: field `convergence_thresh` is never read
[INFO] [stdout]    --> src/utils/em.rs:365:9
[INFO] [stdout]     |
[INFO] [stdout] 361 | pub struct EMInfo<'eqm, 'el> {
[INFO] [stdout]     |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 365 |     pub convergence_thresh: f64,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/utils/em.rs:99:17
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn iter(&self) -> PackedEqEntryIter {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn iter(&self) -> PackedEqEntryIter<'_> {
[INFO] [stdout]    |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/utils/em.rs:106:24
[INFO] [stdout]     |
[INFO] [stdout] 106 |     pub fn iter_labels(&self) -> PackedEqLabelIter {
[INFO] [stdout]     |                        ^^^^^     ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 106 |     pub fn iter_labels(&self) -> PackedEqLabelIter<'_> {
[INFO] [stdout]     |                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/utils/em.rs:190:17
[INFO] [stdout]     |
[INFO] [stdout] 190 |     pub fn iter(&self) -> EqEntryIter {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 190 |     pub fn iter(&self) -> EqEntryIter<'_> {
[INFO] [stdout]     |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 11s
[INFO] running `Command { std: "docker" "inspect" "72abc5d694bd8744d8c68d8ab987b8fab557989857b8d83b31933f6e9932c703", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72abc5d694bd8744d8c68d8ab987b8fab557989857b8d83b31933f6e9932c703", kill_on_drop: false }`
[INFO] [stdout] 72abc5d694bd8744d8c68d8ab987b8fab557989857b8d83b31933f6e9932c703
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c799134c5d213c0195e619d66d112c1bb4fc33f003b757cab85348c24cc3c090
[INFO] running `Command { std: "docker" "start" "-a" "c799134c5d213c0195e619d66d112c1bb4fc33f003b757cab85348c24cc3c090", kill_on_drop: false }`
[INFO] [stderr]    Compiling piscem-infer v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `convergence_thresh` is never read
[INFO] [stdout]    --> src/utils/em.rs:365:9
[INFO] [stdout]     |
[INFO] [stdout] 361 | pub struct EMInfo<'eqm, 'el> {
[INFO] [stdout]     |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 365 |     pub convergence_thresh: f64,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/utils/em.rs:99:17
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn iter(&self) -> PackedEqEntryIter {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn iter(&self) -> PackedEqEntryIter<'_> {
[INFO] [stdout]    |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/utils/em.rs:106:24
[INFO] [stdout]     |
[INFO] [stdout] 106 |     pub fn iter_labels(&self) -> PackedEqLabelIter {
[INFO] [stdout]     |                        ^^^^^     ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 106 |     pub fn iter_labels(&self) -> PackedEqLabelIter<'_> {
[INFO] [stdout]     |                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/utils/em.rs:190:17
[INFO] [stdout]     |
[INFO] [stdout] 190 |     pub fn iter(&self) -> EqEntryIter {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 190 |     pub fn iter(&self) -> EqEntryIter<'_> {
[INFO] [stdout]     |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.55s
[INFO] running `Command { std: "docker" "inspect" "c799134c5d213c0195e619d66d112c1bb4fc33f003b757cab85348c24cc3c090", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c799134c5d213c0195e619d66d112c1bb4fc33f003b757cab85348c24cc3c090", kill_on_drop: false }`
[INFO] [stdout] c799134c5d213c0195e619d66d112c1bb4fc33f003b757cab85348c24cc3c090
