[INFO] fetching crate freezable 0.1.8...
[INFO] checking freezable-0.1.8 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate freezable 0.1.8 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate freezable 0.1.8
[INFO] finished tweaking crates.io crate freezable 0.1.8
[INFO] tweaked toml for crates.io crate freezable 0.1.8 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate freezable 0.1.8 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5a899188e4753777f2c1fa9c341dedfe141d777f999baebd1457dbac3cdd0a9d
[INFO] running `Command { std: "docker" "start" "-a" "5a899188e4753777f2c1fa9c341dedfe141d777f999baebd1457dbac3cdd0a9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a899188e4753777f2c1fa9c341dedfe141d777f999baebd1457dbac3cdd0a9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a899188e4753777f2c1fa9c341dedfe141d777f999baebd1457dbac3cdd0a9d", kill_on_drop: false }`
[INFO] [stdout] 5a899188e4753777f2c1fa9c341dedfe141d777f999baebd1457dbac3cdd0a9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e50ed904d214ba2a24462b79f46aa48671f5b9d786c8afebb6ecd91424c0da11
[INFO] running `Command { std: "docker" "start" "-a" "e50ed904d214ba2a24462b79f46aa48671f5b9d786c8afebb6ecd91424c0da11", kill_on_drop: false }`
[INFO] [stderr]     Checking freezable v0.1.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `hash_map::FrozenMap`
[INFO] [stdout]  --> src/frozen_std/collections/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use hash_map::FrozenMap;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hash_set::FrozenSet`
[INFO] [stdout]  --> src/frozen_std/collections/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use hash_set::FrozenSet;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hash_map::FrozenMap`
[INFO] [stdout]  --> src/frozen_std/collections/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use hash_map::FrozenMap;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hash_set::FrozenSet`
[INFO] [stdout]  --> src/frozen_std/collections/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use hash_set::FrozenSet;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/frozen_std/collections/hash_map.rs:56:17
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn iter(&self) -> Iter<K, V> {
[INFO] [stdout]    |                 ^^^^^     ---------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn iter(&self) -> Iter<'_, K, V> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/frozen_std/collections/hash_set.rs:44:17
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn iter(&self) -> Iter<K> {
[INFO] [stdout]    |                 ^^^^^     ------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn iter(&self) -> Iter<'_, K> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/frozen_std/collections/hash_map.rs:56:17
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn iter(&self) -> Iter<K, V> {
[INFO] [stdout]    |                 ^^^^^     ---------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn iter(&self) -> Iter<'_, K, V> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/frozen_std/collections/hash_set.rs:44:17
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn iter(&self) -> Iter<K> {
[INFO] [stdout]    |                 ^^^^^     ------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn iter(&self) -> Iter<'_, K> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "e50ed904d214ba2a24462b79f46aa48671f5b9d786c8afebb6ecd91424c0da11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e50ed904d214ba2a24462b79f46aa48671f5b9d786c8afebb6ecd91424c0da11", kill_on_drop: false }`
[INFO] [stdout] e50ed904d214ba2a24462b79f46aa48671f5b9d786c8afebb6ecd91424c0da11