[INFO] cloning repository https://github.com/jnbooth/enumeration
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jnbooth/enumeration" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjnbooth%2Fenumeration", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjnbooth%2Fenumeration'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c1a02ea36351ee0b528bc5df2bd74628fbc9556d
[INFO] checking jnbooth/enumeration against try#f70ee28831acc074c109afab32d287057c3eca46 for pr-149389
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjnbooth%2Fenumeration" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jnbooth/enumeration
[INFO] finished tweaking git repo https://github.com/jnbooth/enumeration
[INFO] tweaked toml for git repo https://github.com/jnbooth/enumeration written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jnbooth/enumeration on toolchain f70ee28831acc074c109afab32d287057c3eca46
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f70ee28831acc074c109afab32d287057c3eca46" "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" "+f70ee28831acc074c109afab32d287057c3eca46" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 12 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.111)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f70ee28831acc074c109afab32d287057c3eca46" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking jnbooth/enumeration against try#f70ee28831acc074c109afab32d287057c3eca46 for pr-149389
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjnbooth%2Fenumeration" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jnbooth/enumeration
[INFO] finished tweaking git repo https://github.com/jnbooth/enumeration
[INFO] tweaked toml for git repo https://github.com/jnbooth/enumeration written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jnbooth/enumeration on toolchain f70ee28831acc074c109afab32d287057c3eca46
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f70ee28831acc074c109afab32d287057c3eca46" "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" "+f70ee28831acc074c109afab32d287057c3eca46" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking jnbooth/enumeration against try#f70ee28831acc074c109afab32d287057c3eca46 for pr-149389
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjnbooth%2Fenumeration" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jnbooth/enumeration
[INFO] finished tweaking git repo https://github.com/jnbooth/enumeration
[INFO] tweaked toml for git repo https://github.com/jnbooth/enumeration written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jnbooth/enumeration on toolchain f70ee28831acc074c109afab32d287057c3eca46
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f70ee28831acc074c109afab32d287057c3eca46" "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" "+f70ee28831acc074c109afab32d287057c3eca46" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 12 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.111)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f70ee28831acc074c109afab32d287057c3eca46" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+f70ee28831acc074c109afab32d287057c3eca46" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bda369bf3b04228d7d361781a16c2b02dfad0fc61af2b1a332a6d9648afeb7b5
[INFO] running `Command { std: "docker" "start" "-a" "bda369bf3b04228d7d361781a16c2b02dfad0fc61af2b1a332a6d9648afeb7b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bda369bf3b04228d7d361781a16c2b02dfad0fc61af2b1a332a6d9648afeb7b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bda369bf3b04228d7d361781a16c2b02dfad0fc61af2b1a332a6d9648afeb7b5", kill_on_drop: false }`
[INFO] [stdout] bda369bf3b04228d7d361781a16c2b02dfad0fc61af2b1a332a6d9648afeb7b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+f70ee28831acc074c109afab32d287057c3eca46" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec725c8d95dd2ae1ab1df067c111cebac40dc2a2580f85d08f29ca283ce52303
[INFO] running `Command { std: "docker" "start" "-a" "ec725c8d95dd2ae1ab1df067c111cebac40dc2a2580f85d08f29ca283ce52303", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-ident v1.0.22
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking proc-macro2 v1.0.103
[INFO] [stderr]     Checking quote v1.0.42
[INFO] [stderr]     Checking serde_json v1.0.145
[INFO] [stderr]     Checking enumeration_derive v0.8.0 (/opt/rustwide/workdir/enumeration_derive)
[INFO] [stderr]     Checking enumeration v0.8.0 (/opt/rustwide/workdir/enumeration)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> enumeration/src/map/enum_map.rs:313:17
[INFO] [stdout]     |
[INFO] [stdout] 313 |     pub fn iter(&self) -> Iter<K, &V, slice::Iter<Option<V>>> {
[INFO] [stdout]     |                 ^^^^^             ^^  ^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |                 |
[INFO] [stdout]     |                 |                 the same lifetime is elided here
[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] 313 |     pub fn iter(&self) -> Iter<K, &V, slice::Iter<'_, Option<V>>> {
[INFO] [stdout]     |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> enumeration/src/map/enum_map.rs:347:21
[INFO] [stdout]     |
[INFO] [stdout] 347 |     pub fn iter_mut(&mut self) -> Iter<K, &mut V, slice::IterMut<Option<V>>> {
[INFO] [stdout]     |                     ^^^^^^^^^             ^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |                     |
[INFO] [stdout]     |                     |                     the same lifetime is elided here
[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] 347 |     pub fn iter_mut(&mut self) -> Iter<K, &mut V, slice::IterMut<'_, Option<V>>> {
[INFO] [stdout]     |                                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> enumeration/src/map/enum_map.rs:411:18
[INFO] [stdout]     |
[INFO] [stdout] 411 |     pub fn drain(&mut self) -> Iter<K, V, vec::Drain<Option<V>>> {
[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] 411 |     pub fn drain(&mut self) -> Iter<K, V, vec::Drain<'_, Option<V>>> {
[INFO] [stdout]     |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> enumeration/src/map/enum_map.rs:548:18
[INFO] [stdout]     |
[INFO] [stdout] 548 |     pub fn entry(&mut self, key: K) -> Entry<K, V> {
[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] 548 |     pub fn entry(&mut self, key: K) -> Entry<'_, K, V> {
[INFO] [stdout]     |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> enumeration/src/map/enum_map.rs:313:17
[INFO] [stdout]     |
[INFO] [stdout] 313 |     pub fn iter(&self) -> Iter<K, &V, slice::Iter<Option<V>>> {
[INFO] [stdout]     |                 ^^^^^             ^^  ^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |                 |
[INFO] [stdout]     |                 |                 the same lifetime is elided here
[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] 313 |     pub fn iter(&self) -> Iter<K, &V, slice::Iter<'_, Option<V>>> {
[INFO] [stdout]     |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> enumeration/src/map/enum_map.rs:347:21
[INFO] [stdout]     |
[INFO] [stdout] 347 |     pub fn iter_mut(&mut self) -> Iter<K, &mut V, slice::IterMut<Option<V>>> {
[INFO] [stdout]     |                     ^^^^^^^^^             ^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |                     |
[INFO] [stdout]     |                     |                     the same lifetime is elided here
[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] 347 |     pub fn iter_mut(&mut self) -> Iter<K, &mut V, slice::IterMut<'_, Option<V>>> {
[INFO] [stdout]     |                                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> enumeration/src/map/enum_map.rs:411:18
[INFO] [stdout]     |
[INFO] [stdout] 411 |     pub fn drain(&mut self) -> Iter<K, V, vec::Drain<Option<V>>> {
[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] 411 |     pub fn drain(&mut self) -> Iter<K, V, vec::Drain<'_, Option<V>>> {
[INFO] [stdout]     |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> enumeration/src/map/enum_map.rs:548:18
[INFO] [stdout]     |
[INFO] [stdout] 548 |     pub fn entry(&mut self, key: K) -> Entry<K, V> {
[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] 548 |     pub fn entry(&mut self, key: K) -> Entry<'_, K, V> {
[INFO] [stdout]     |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.07s
[INFO] running `Command { std: "docker" "inspect" "ec725c8d95dd2ae1ab1df067c111cebac40dc2a2580f85d08f29ca283ce52303", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec725c8d95dd2ae1ab1df067c111cebac40dc2a2580f85d08f29ca283ce52303", kill_on_drop: false }`
[INFO] [stdout] ec725c8d95dd2ae1ab1df067c111cebac40dc2a2580f85d08f29ca283ce52303
