[INFO] fetching crate mailing-list 0.4.0...
[INFO] building mailing-list-0.4.0 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate mailing-list 0.4.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate mailing-list 0.4.0
[INFO] finished tweaking crates.io crate mailing-list 0.4.0
[INFO] tweaked toml for crates.io crate mailing-list 0.4.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mailing-list 0.4.0 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mailing-list 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "7c18c6d8a22e6dd0bcc0c46969b7b1612ecc39fa5076eea01e6878a744bc2f18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c18c6d8a22e6dd0bcc0c46969b7b1612ecc39fa5076eea01e6878a744bc2f18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c18c6d8a22e6dd0bcc0c46969b7b1612ecc39fa5076eea01e6878a744bc2f18", kill_on_drop: false }`
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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_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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e1d8e22032cbc7a6c8b62f09e7ecdfb92485e49db45e32512c6c104448599803
[INFO] running `Command { std: "docker" "start" "-a" "e1d8e22032cbc7a6c8b62f09e7ecdfb92485e49db45e32512c6c104448599803", kill_on_drop: false }`
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[INFO] [stderr]    Compiling mailing-list v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `from`, `to`, and `payload` are never read
[INFO] [stdout]   --> src/client_handler.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct Mail {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 34 |     pub from: Sender,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 35 |     pub to: Vec<Reciever>,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 36 |     pub payload: String,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Mail` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 09s
[INFO] running `Command { std: "docker" "inspect" "e1d8e22032cbc7a6c8b62f09e7ecdfb92485e49db45e32512c6c104448599803", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1d8e22032cbc7a6c8b62f09e7ecdfb92485e49db45e32512c6c104448599803", kill_on_drop: false }`
[INFO] [stdout] e1d8e22032cbc7a6c8b62f09e7ecdfb92485e49db45e32512c6c104448599803
[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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9fd92bcc2e8677c74cbd884b04aab435be2d5934da8387dcecdc4298bf9aac5
[INFO] running `Command { std: "docker" "start" "-a" "e9fd92bcc2e8677c74cbd884b04aab435be2d5934da8387dcecdc4298bf9aac5", kill_on_drop: false }`
[INFO] [stderr]    Compiling mailing-list v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `from`, `to`, and `payload` are never read
[INFO] [stdout]   --> src/client_handler.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct Mail {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 34 |     pub from: Sender,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 35 |     pub to: Vec<Reciever>,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 36 |     pub payload: String,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Mail` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.42s
[INFO] running `Command { std: "docker" "inspect" "e9fd92bcc2e8677c74cbd884b04aab435be2d5934da8387dcecdc4298bf9aac5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9fd92bcc2e8677c74cbd884b04aab435be2d5934da8387dcecdc4298bf9aac5", kill_on_drop: false }`
[INFO] [stdout] e9fd92bcc2e8677c74cbd884b04aab435be2d5934da8387dcecdc4298bf9aac5