[INFO] fetching crate tealdeer 1.4.1...
[INFO] checking tealdeer-1.4.1 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] extracting crate tealdeer 1.4.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate tealdeer 1.4.1 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tealdeer 1.4.1
[INFO] finished tweaking crates.io crate tealdeer 1.4.1
[INFO] tweaked toml for crates.io crate tealdeer 1.4.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate tealdeer 1.4.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded errno v0.2.6
[INFO] [stderr]   Downloaded escargot v0.5.0
[INFO] [stderr]   Downloaded tracing-core v0.1.15
[INFO] [stderr]   Downloaded hyper v0.13.7
[INFO] [stderr]   Downloaded cc v1.0.59
[INFO] [stderr]   Downloaded pager v0.15.0
[INFO] [stderr]   Downloaded reqwest v0.10.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c9c4ca12bfa959c2631cf5b1e26e1f44f4e695743ce2927475abfd3cbecccf01
[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" "c9c4ca12bfa959c2631cf5b1e26e1f44f4e695743ce2927475abfd3cbecccf01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9c4ca12bfa959c2631cf5b1e26e1f44f4e695743ce2927475abfd3cbecccf01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9c4ca12bfa959c2631cf5b1e26e1f44f4e695743ce2927475abfd3cbecccf01", kill_on_drop: false }`
[INFO] [stdout] c9c4ca12bfa959c2631cf5b1e26e1f44f4e695743ce2927475abfd3cbecccf01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 27ce9ad80d27f2fb71a5c1d6f906153e7bfc1a6fb3e811c5503549b31984ddd9
[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" "27ce9ad80d27f2fb71a5c1d6f906153e7bfc1a6fb3e811c5503549b31984ddd9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling cc v1.0.59
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]     Checking tinyvec v0.3.4
[INFO] [stderr]    Compiling encoding_rs v0.8.24
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking predicates-core v1.0.0
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking dtoa v0.4.6
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking strsim v0.9.3
[INFO] [stderr]    Compiling escargot v0.5.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking tracing-core v0.1.15
[INFO] [stderr]     Checking futures-channel v0.3.5
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[INFO] [stderr]     Checking rand_chacha v0.2.2
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[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]     Checking predicates v1.0.5
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking assert_cmd v1.0.1
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking h2 v0.2.6
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking docopt v1.1.0
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking hyper v0.13.7
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking reqwest v0.10.8
[INFO] [stderr]     Checking tealdeer v1.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> src/config.rs:26:3
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[serde(rename_all = "lowercase")]
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 27 | #[derive(Copy, Clone, Debug, Serialize, Deserialize, PartialEq, Eq, PartialOrd, Ord)]
[INFO] [stdout]    |                              --------- the attribute is introduced here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(legacy_derive_helpers)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: derive helper attribute is used before it is introduced
[INFO] [stdout]   --> src/config.rs:26:3
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[serde(rename_all = "lowercase")]
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 27 | #[derive(Copy, Clone, Debug, Serialize, Deserialize, PartialEq, Eq, PartialOrd, Ord)]
[INFO] [stdout]    |                              --------- the attribute is introduced here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(legacy_derive_helpers)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[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" "27ce9ad80d27f2fb71a5c1d6f906153e7bfc1a6fb3e811c5503549b31984ddd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27ce9ad80d27f2fb71a5c1d6f906153e7bfc1a6fb3e811c5503549b31984ddd9", kill_on_drop: false }`
[INFO] [stdout] 27ce9ad80d27f2fb71a5c1d6f906153e7bfc1a6fb3e811c5503549b31984ddd9