[INFO] fetching crate rustweb 0.13.0...
[INFO] checking rustweb-0.13.0 against master#779e19d8baa3e3625bd4fc5c85cbb2ad47b43155 for pr-147589-1
[INFO] extracting crate rustweb 0.13.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate rustweb 0.13.0
[INFO] finished tweaking crates.io crate rustweb 0.13.0
[INFO] tweaked toml for crates.io crate rustweb 0.13.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rustweb 0.13.0 on toolchain 779e19d8baa3e3625bd4fc5c85cbb2ad47b43155
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rustweb 0.13.0 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" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 149b3bd9132d6b825b42c10b8fe862b7070ad7ab623fdd32a0cbfd4a39dc4abd
[INFO] running `Command { std: "docker" "start" "-a" "149b3bd9132d6b825b42c10b8fe862b7070ad7ab623fdd32a0cbfd4a39dc4abd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "149b3bd9132d6b825b42c10b8fe862b7070ad7ab623fdd32a0cbfd4a39dc4abd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "149b3bd9132d6b825b42c10b8fe862b7070ad7ab623fdd32a0cbfd4a39dc4abd", kill_on_drop: false }`
[INFO] [stdout] 149b3bd9132d6b825b42c10b8fe862b7070ad7ab623fdd32a0cbfd4a39dc4abd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f458f176fbf375bdead3884a02dab24d6193aea3547e9bfefe700040c8b316fd
[INFO] running `Command { std: "docker" "start" "-a" "f458f176fbf375bdead3884a02dab24d6193aea3547e9bfefe700040c8b316fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
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[INFO] [stderr]    Compiling futures-task v0.3.24
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]     Checking smallvec v1.9.0
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[INFO] [stderr]     Checking unicode-normalization v0.1.22
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[INFO] [stderr]    Compiling pin-project-internal v1.0.12
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[INFO] [stderr]     Checking pin-project v1.0.12
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[INFO] [stderr]     Checking rustweb v0.13.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:710:21
[INFO] [stdout]     |
[INFO] [stdout] 710 |         if let Some(mut ext) = ext.downcast_mut::<TransExt>() {
[INFO] [stdout]     |                     ----^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:729:21
[INFO] [stdout]     |
[INFO] [stdout] 729 |         if let Some(mut ext) = ext.downcast_mut::<TransExt>() {
[INFO] [stdout]     |                     ----^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:748:21
[INFO] [stdout]     |
[INFO] [stdout] 748 |         if let Some(mut ext) = ext.downcast_mut::<TransExt>() {
[INFO] [stdout]     |                     ----^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:710:21
[INFO] [stdout]     |
[INFO] [stdout] 710 |         if let Some(mut ext) = ext.downcast_mut::<TransExt>() {
[INFO] [stdout]     |                     ----^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:729:21
[INFO] [stdout]     |
[INFO] [stdout] 729 |         if let Some(mut ext) = ext.downcast_mut::<TransExt>() {
[INFO] [stdout]     |                     ----^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:748:21
[INFO] [stdout]     |
[INFO] [stdout] 748 |         if let Some(mut ext) = ext.downcast_mut::<TransExt>() {
[INFO] [stdout]     |                     ----^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 12s
[INFO] running `Command { std: "docker" "inspect" "f458f176fbf375bdead3884a02dab24d6193aea3547e9bfefe700040c8b316fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f458f176fbf375bdead3884a02dab24d6193aea3547e9bfefe700040c8b316fd", kill_on_drop: false }`
[INFO] [stdout] f458f176fbf375bdead3884a02dab24d6193aea3547e9bfefe700040c8b316fd
