[INFO] fetching crate vrl 0.4.0...
[INFO] checking vrl-0.4.0 against master#e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682 for beta-170-4
[INFO] extracting crate vrl 0.4.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate vrl 0.4.0 on toolchain e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5-tc2/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-5-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate vrl 0.4.0
[INFO] finished tweaking crates.io crate vrl 0.4.0
[INFO] tweaked toml for crates.io crate vrl 0.4.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate crates.io crate vrl 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] feec8df64d8c8bdc41f7f0c9072db1b12bdbe4c9f4817895e01e226ec0875cdd
[INFO] running `Command { std: "docker" "start" "-a" "feec8df64d8c8bdc41f7f0c9072db1b12bdbe4c9f4817895e01e226ec0875cdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "feec8df64d8c8bdc41f7f0c9072db1b12bdbe4c9f4817895e01e226ec0875cdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "feec8df64d8c8bdc41f7f0c9072db1b12bdbe4c9f4817895e01e226ec0875cdd", kill_on_drop: false }`
[INFO] [stdout] feec8df64d8c8bdc41f7f0c9072db1b12bdbe4c9f4817895e01e226ec0875cdd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e4a2fc27506e048ad4caf9850ba3df70530ac31f30c5d44480fc12420899ec86
[INFO] running `Command { std: "docker" "start" "-a" "e4a2fc27506e048ad4caf9850ba3df70530ac31f30c5d44480fc12420899ec86", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.54
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[INFO] [stderr]    Compiling thiserror-impl v1.0.40
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[INFO] [stderr]    Compiling derive_more v0.99.17
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[INFO] [stderr]    Compiling pest_derive v2.6.0
[INFO] [stderr]     Checking chrono v0.4.24
[INFO] [stderr]     Checking serde_yaml v0.8.26
[INFO] [stderr]     Checking toml_datetime v0.6.1
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[INFO] [stderr]     Checking ciborium v0.2.0
[INFO] [stderr]     Checking serde_spanned v0.6.1
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[INFO] [stderr]     Checking criterion v0.4.0
[INFO] [stderr]     Checking syslog_loose v0.18.0
[INFO] [stderr]    Compiling vrl v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: variable does not need to be mutable
[INFO] [stdout]   --> src/datadog/search/grammar.rs:47:33
[INFO] [stdout]    |
[INFO] [stdout] 47 | ...                   let mut lastitem = clauses.last_mut().unwrap();
[INFO] [stdout]    |                           ----^^^^^^^^
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/datadog/search/mod.rs:1:9
[INFO] [stdout]    |
[INFO] [stdout] 1  | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(unused_mut)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: variable does not need to be mutable
[INFO] [stdout]   --> src/datadog/search/grammar.rs:56:33
[INFO] [stdout]    |
[INFO] [stdout] 56 | ...                   let mut lastitem = clauses.last_mut().unwrap();
[INFO] [stdout]    |                           ----^^^^^^^^
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `vrl` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: variable does not need to be mutable
[INFO] [stdout]   --> src/datadog/search/grammar.rs:47:33
[INFO] [stdout]    |
[INFO] [stdout] 47 | ...                   let mut lastitem = clauses.last_mut().unwrap();
[INFO] [stdout]    |                           ----^^^^^^^^
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/datadog/search/mod.rs:1:9
[INFO] [stdout]    |
[INFO] [stdout] 1  | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(unused_mut)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: variable does not need to be mutable
[INFO] [stdout]   --> src/datadog/search/grammar.rs:56:33
[INFO] [stdout]    |
[INFO] [stdout] 56 | ...                   let mut lastitem = clauses.last_mut().unwrap();
[INFO] [stdout]    |                           ----^^^^^^^^
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `vrl` (lib test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "e4a2fc27506e048ad4caf9850ba3df70530ac31f30c5d44480fc12420899ec86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4a2fc27506e048ad4caf9850ba3df70530ac31f30c5d44480fc12420899ec86", kill_on_drop: false }`
[INFO] [stdout] e4a2fc27506e048ad4caf9850ba3df70530ac31f30c5d44480fc12420899ec86
