[INFO] fetching crate quinn-proto 0.7.0...
[INFO] checking quinn-proto-0.7.0 against master#f5f33ec0e0455eefa72fc5567eb1280a4d5ee206 for pr-83312
[INFO] extracting crate quinn-proto 0.7.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate quinn-proto 0.7.0 on toolchain f5f33ec0e0455eefa72fc5567eb1280a4d5ee206
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate quinn-proto 0.7.0
[INFO] finished tweaking crates.io crate quinn-proto 0.7.0
[INFO] tweaked toml for crates.io crate quinn-proto 0.7.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "metadata" "--no-deps" "--format-version=1", 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] 09a540b83625faf6f8bed77de7ce234b7a2092499262e33afab6ad601a1a07b7
[INFO] running `Command { std: "docker" "start" "-a" "09a540b83625faf6f8bed77de7ce234b7a2092499262e33afab6ad601a1a07b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09a540b83625faf6f8bed77de7ce234b7a2092499262e33afab6ad601a1a07b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09a540b83625faf6f8bed77de7ce234b7a2092499262e33afab6ad601a1a07b7", kill_on_drop: false }`
[INFO] [stdout] 09a540b83625faf6f8bed77de7ce234b7a2092499262e33afab6ad601a1a07b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 609548c191ee5d7ef0e6357c41598434f7e987035a76596b7e987f98fd7ef65f
[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" "609548c191ee5d7ef0e6357c41598434f7e987035a76596b7e987f98fd7ef65f", kill_on_drop: false }`
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]    Compiling hex-literal v0.3.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking sharded-slab v0.1.1
[INFO] [stderr]     Checking tinyvec v1.1.1
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking yasna v0.3.2
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking rustls v0.19.0
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]     Checking pem v0.8.3
[INFO] [stderr]     Checking rcgen v0.8.9
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking tracing v0.1.25
[INFO] [stderr]     Checking tracing-subscriber v0.2.17
[INFO] [stderr]     Checking quinn-proto v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::collections::Bound`
[INFO] [stdout]  --> src/range_set.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |         Bound::{Excluded, Included},
[INFO] [stdout]   |         ^^^^^ `Bound` is a type alias, not a module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `quinn-proto`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0432]: unresolved import `std::collections::Bound`
[INFO] [stdout]  --> src/range_set.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |         Bound::{Excluded, Included},
[INFO] [stdout]   |         ^^^^^ `Bound` is a type alias, not a module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0659]: `assert_matches` is ambiguous (glob import vs any other name from outer scope during import/macro resolution)
[INFO] [stdout]    --> src/tests/util.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |         assert_matches!(
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = note: `assert_matches` could refer to a macro from prelude
[INFO] [stdout] note: `assert_matches` could also refer to the macro imported here
[INFO] [stdout]    --> src/tests/util.rs:18:5
[INFO] [stdout]     |
[INFO] [stdout] 18  | use super::*;
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `assert_matches` to disambiguate
[INFO] [stdout]     = help: or use `self::assert_matches` to refer to this macro unambiguously
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0659]: `assert_matches` is ambiguous (glob import vs any other name from outer scope during import/macro resolution)
[INFO] [stdout]    --> src/tests/util.rs:139:9
[INFO] [stdout]     |
[INFO] [stdout] 139 |         assert_matches!(
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = note: `assert_matches` could refer to a macro from prelude
[INFO] [stdout] note: `assert_matches` could also refer to the macro imported here
[INFO] [stdout]    --> src/tests/util.rs:18:5
[INFO] [stdout]     |
[INFO] [stdout] 18  | use super::*;
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `assert_matches` to disambiguate
[INFO] [stdout]     = help: or use `self::assert_matches` to refer to this macro unambiguously
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0659]: `assert_matches` is ambiguous (glob import vs any other name from outer scope during import/macro resolution)
[INFO] [stdout]    --> src/tests/util.rs:143:9
[INFO] [stdout]     |
[INFO] [stdout] 143 |         assert_matches!(
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = note: `assert_matches` could refer to a macro from prelude
[INFO] [stdout] note: `assert_matches` could also refer to the macro imported here
[INFO] [stdout]    --> src/tests/util.rs:18:5
[INFO] [stdout]     |
[INFO] [stdout] 18  | use super::*;
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `assert_matches` to disambiguate
[INFO] [stdout]     = help: or use `self::assert_matches` to refer to this macro unambiguously
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0659]: `assert_matches` is ambiguous (glob import vs any other name from outer scope during import/macro resolution)
[INFO] [stdout]    --> src/tests/util.rs:147:9
[INFO] [stdout]     |
[INFO] [stdout] 147 |         assert_matches!(
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = note: `assert_matches` could refer to a macro from prelude
[INFO] [stdout] note: `assert_matches` could also refer to the macro imported here
[INFO] [stdout]    --> src/tests/util.rs:18:5
[INFO] [stdout]     |
[INFO] [stdout] 18  | use super::*;
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `assert_matches` to disambiguate
[INFO] [stdout]     = help: or use `self::assert_matches` to refer to this macro unambiguously
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0659.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "609548c191ee5d7ef0e6357c41598434f7e987035a76596b7e987f98fd7ef65f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "609548c191ee5d7ef0e6357c41598434f7e987035a76596b7e987f98fd7ef65f", kill_on_drop: false }`
[INFO] [stdout] 609548c191ee5d7ef0e6357c41598434f7e987035a76596b7e987f98fd7ef65f