[INFO] fetching crate traildb 0.6.0...
[INFO] checking traildb-0.6.0 against try#bb9dbf1d07454a99066eabaabd5819851281494b for pr-80920
[INFO] extracting crate traildb 0.6.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate traildb 0.6.0 on toolchain bb9dbf1d07454a99066eabaabd5819851281494b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate traildb 0.6.0
[INFO] finished tweaking crates.io crate traildb 0.6.0
[INFO] tweaked toml for crates.io crate traildb 0.6.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "fetch" "--locked" "--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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand_xorshift v0.1.1
[INFO] [stderr]   Downloaded proc-macro2 v1.0.24
[INFO] [stderr]   Downloaded libloading v0.5.2
[INFO] [stderr]   Downloaded version_check v0.1.5
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.1
[INFO] [stderr]   Downloaded getrandom v0.1.16
[INFO] [stderr]   Downloaded tempdir v0.3.7
[INFO] [stderr]   Downloaded constant_time_eq v0.1.5
[INFO] [stderr]   Downloaded thread_local v1.1.0
[INFO] [stderr]   Downloaded memchr v2.3.4
[INFO] [stderr]   Downloaded rand_hc v0.1.0
[INFO] [stderr]   Downloaded peeking_take_while v0.1.2
[INFO] [stderr]   Downloaded atty v0.2.14
[INFO] [stderr]   Downloaded vec_map v0.8.2
[INFO] [stderr]   Downloaded term v0.5.2
[INFO] [stderr]   Downloaded base64 v0.13.0
[INFO] [stderr]   Downloaded byteorder v1.4.2
[INFO] [stderr]   Downloaded autocfg v0.1.7
[INFO] [stderr]   Downloaded wasi v0.9.0+wasi-snapshot-preview1
[INFO] [stderr]   Downloaded aho-corasick v0.7.15
[INFO] [stderr]   Downloaded itoa v0.4.7
[INFO] [stderr]   Downloaded redox_users v0.3.5
[INFO] [stderr]   Downloaded dirs v1.0.5
[INFO] [stderr]   Downloaded textwrap v0.11.0
[INFO] [stderr]   Downloaded arrayref v0.3.6
[INFO] [stderr]   Downloaded rust-argon2 v0.8.3
[INFO] [stderr]   Downloaded adler32 v1.2.0
[INFO] [stderr]   Downloaded encode_unicode v0.3.6
[INFO] [stderr]   Downloaded regex-automata v0.1.9
[INFO] [stderr]   Downloaded csv-core v0.1.10
[INFO] [stderr]   Downloaded jobserver v0.1.21
[INFO] [stderr]   Downloaded rle-decode-fast v1.0.1
[INFO] [stderr]   Downloaded clap v2.33.3
[INFO] [stderr]   Downloaded serde v1.0.119
[INFO] [stderr]   Downloaded blake2b_simd v0.5.11
[INFO] [stderr]   Downloaded regex-syntax v0.6.22
[INFO] [stderr]   Downloaded nom v4.2.3
[INFO] [stderr]   Downloaded glob v0.3.0
[INFO] [stderr]   Downloaded regex v1.4.3
[INFO] [stderr]   Downloaded traildb-sys v0.6.3
[INFO] [stderr]   Downloaded bindgen v0.51.1
[INFO] [stderr]   Downloaded take_mut v0.2.2
[INFO] [stderr]   Downloaded bstr v0.2.14
[INFO] [stderr]   Downloaded arrayvec v0.5.2
[INFO] [stderr]   Downloaded filetime v0.2.13
[INFO] [stderr]   Downloaded ansi_term v0.11.0
[INFO] [stderr]   Downloaded csv v1.1.5
[INFO] [stderr]   Downloaded shlex v0.1.1
[INFO] [stderr]   Downloaded which v3.1.1
[INFO] [stderr]   Downloaded cc v1.0.66
[INFO] [stderr]   Downloaded crc32fast v1.2.1
[INFO] [stderr]   Downloaded libflate v0.1.27
[INFO] [stderr]   Downloaded rand v0.6.5
[INFO] [stderr]   Downloaded pkg-config v0.3.19
[INFO] [stderr]   Downloaded cfg-if v1.0.0
[INFO] [stderr]   Downloaded redox_syscall v0.1.57
[INFO] [stderr]   Downloaded cexpr v0.3.6
[INFO] [stderr]   Downloaded env_logger v0.6.2
[INFO] [stderr]   Downloaded cloudabi v0.0.3
[INFO] [stderr]   Downloaded autocfg v1.0.1
[INFO] [stderr]   Downloaded rand_pcg v0.1.2
[INFO] [stderr]   Downloaded unicode-xid v0.2.1
[INFO] [stderr]   Downloaded remove_dir_all v0.5.3
[INFO] [stderr]   Downloaded unicode-width v0.1.8
[INFO] [stderr]   Downloaded winapi-util v0.1.5
[INFO] [stderr]   Downloaded quick-error v1.2.3
[INFO] [stderr]   Downloaded termcolor v1.1.2
[INFO] [stderr]   Downloaded log v0.4.13
[INFO] [stderr]   Downloaded uuid v0.7.4
[INFO] [stderr]   Downloaded rand_jitter v0.1.4
[INFO] [stderr]   Downloaded rand_isaac v0.1.1
[INFO] [stderr]   Downloaded xattr v0.2.2
[INFO] [stderr]   Downloaded tar v0.4.30
[INFO] [stderr]   Downloaded rand_os v0.1.3
[INFO] [stderr]   Downloaded clang-sys v0.28.1
[INFO] [stderr]   Downloaded prettytable-rs v0.8.0
[INFO] [stderr]   Downloaded humantime v1.3.0
[INFO] [stderr]   Downloaded rustc-hash v1.1.0
[INFO] [stderr]   Downloaded rand_chacha v0.1.1
[INFO] [stderr]   Downloaded strsim v0.8.0
[INFO] [stderr]   Downloaded quote v1.0.8
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d6f4198f786d5a2b8bd4c42dd5dc1c533e2cf962fab9cc40a423e64f0330f8c3
[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" "d6f4198f786d5a2b8bd4c42dd5dc1c533e2cf962fab9cc40a423e64f0330f8c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6f4198f786d5a2b8bd4c42dd5dc1c533e2cf962fab9cc40a423e64f0330f8c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6f4198f786d5a2b8bd4c42dd5dc1c533e2cf962fab9cc40a423e64f0330f8c3", kill_on_drop: false }`
[INFO] [stdout] d6f4198f786d5a2b8bd4c42dd5dc1c533e2cf962fab9cc40a423e64f0330f8c3
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f38102aac732d2e7a5c5fbd3c1df5291b1d88bd13a8d1124d3ed8a039c3af4a
[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" "1f38102aac732d2e7a5c5fbd3c1df5291b1d88bd13a8d1124d3ed8a039c3af4a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling bindgen v0.51.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking encode_unicode v0.3.6
[INFO] [stderr]    Compiling clang-sys v0.28.1
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling thread_local v1.1.0
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]    Compiling traildb v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling log v0.4.13
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]    Compiling libflate v0.1.27
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking csv v1.1.5
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling filetime v0.2.13
[INFO] [stderr]    Compiling cexpr v0.3.6
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]    Compiling tar v0.4.30
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking prettytable-rs v0.8.0
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling traildb-sys v0.6.3
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]  --> examples/wiki.rs:5:28
[INFO] [stdout]   |
[INFO] [stdout] 5 | const SESSION_LIMIT: u64 = (30 * 60); // at least 30 minutes between edits
[INFO] [stdout]   |                            ^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 21s
[INFO] running `Command { std: "docker" "inspect" "1f38102aac732d2e7a5c5fbd3c1df5291b1d88bd13a8d1124d3ed8a039c3af4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f38102aac732d2e7a5c5fbd3c1df5291b1d88bd13a8d1124d3ed8a039c3af4a", kill_on_drop: false }`
[INFO] [stdout] 1f38102aac732d2e7a5c5fbd3c1df5291b1d88bd13a8d1124d3ed8a039c3af4a