[INFO] fetching crate shoebill 0.1.5...
[INFO] building shoebill-0.1.5 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate shoebill 0.1.5 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate shoebill 0.1.5
[INFO] finished tweaking crates.io crate shoebill 0.1.5
[INFO] tweaked toml for crates.io crate shoebill 0.1.5 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate shoebill 0.1.5 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate shoebill 0.1.5 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded autocfg v1.0.1
[INFO] [stderr]   Downloaded indexmap v1.6.0
[INFO] [stderr]   Downloaded hashbrown v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7fe360e80a22916d87cbe2bbd519be9edb9d385901a3fc3edadf504f85f23d7f
[INFO] running `Command { std: "docker" "start" "-a" "7fe360e80a22916d87cbe2bbd519be9edb9d385901a3fc3edadf504f85f23d7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7fe360e80a22916d87cbe2bbd519be9edb9d385901a3fc3edadf504f85f23d7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fe360e80a22916d87cbe2bbd519be9edb9d385901a3fc3edadf504f85f23d7f", kill_on_drop: false }`
[INFO] [stdout] 7fe360e80a22916d87cbe2bbd519be9edb9d385901a3fc3edadf504f85f23d7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4e6a0c6bb12a1982ccb9503587cb5252e1b133e9e75e718ea3d6945d35f8f781
[INFO] running `Command { std: "docker" "start" "-a" "4e6a0c6bb12a1982ccb9503587cb5252e1b133e9e75e718ea3d6945d35f8f781", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.9.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling shoebill v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `dedup` is never read
[INFO] [stdout]    --> src/lib.rs:540:5
[INFO] [stdout]     |
[INFO] [stdout] 537 | pub struct Printer<'p> {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 540 |     dedup : bool,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Printer` has a derived impl for the trait `Debug`, but this is 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 1.21s
[INFO] running `Command { std: "docker" "inspect" "4e6a0c6bb12a1982ccb9503587cb5252e1b133e9e75e718ea3d6945d35f8f781", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e6a0c6bb12a1982ccb9503587cb5252e1b133e9e75e718ea3d6945d35f8f781", kill_on_drop: false }`
[INFO] [stdout] 4e6a0c6bb12a1982ccb9503587cb5252e1b133e9e75e718ea3d6945d35f8f781
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05f176e81cd2727e07b16b9fde777016145df676c7dfe6a8ca6ac51832f23b17
[INFO] running `Command { std: "docker" "start" "-a" "05f176e81cd2727e07b16b9fde777016145df676c7dfe6a8ca6ac51832f23b17", kill_on_drop: false }`
[INFO] [stderr]    Compiling shoebill v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `dedup` is never read
[INFO] [stdout]    --> src/lib.rs:540:5
[INFO] [stdout]     |
[INFO] [stdout] 537 | pub struct Printer<'p> {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 540 |     dedup : bool,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Printer` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `dedup` is never read
[INFO] [stdout]    --> src/lib.rs:540:5
[INFO] [stdout]     |
[INFO] [stdout] 537 | pub struct Printer<'p> {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 540 |     dedup : bool,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Printer` has a derived impl for the trait `Debug`, but this is 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 0.83s
[INFO] running `Command { std: "docker" "inspect" "05f176e81cd2727e07b16b9fde777016145df676c7dfe6a8ca6ac51832f23b17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05f176e81cd2727e07b16b9fde777016145df676c7dfe6a8ca6ac51832f23b17", kill_on_drop: false }`
[INFO] [stdout] 05f176e81cd2727e07b16b9fde777016145df676c7dfe6a8ca6ac51832f23b17