[INFO] fetching crate printd 0.2.1...
[INFO] testing printd-0.2.1 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate printd 0.2.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate printd 0.2.1
[INFO] finished tweaking crates.io crate printd 0.2.1
[INFO] tweaked toml for crates.io crate printd 0.2.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate printd 0.2.1 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c51b66c74bcad604083940540354315811d99eee33f565de31908f1f5cda5607
[INFO] running `Command { std: "docker" "start" "-a" "c51b66c74bcad604083940540354315811d99eee33f565de31908f1f5cda5607", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c51b66c74bcad604083940540354315811d99eee33f565de31908f1f5cda5607", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c51b66c74bcad604083940540354315811d99eee33f565de31908f1f5cda5607", kill_on_drop: false }`
[INFO] [stdout] c51b66c74bcad604083940540354315811d99eee33f565de31908f1f5cda5607
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] adaa3d4664c6d044f2426c8a4ee73cd8cc4b8b238dc8ae53682c2cb9045e25e4
[INFO] running `Command { std: "docker" "start" "-a" "adaa3d4664c6d044f2426c8a4ee73cd8cc4b8b238dc8ae53682c2cb9045e25e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling printd v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "adaa3d4664c6d044f2426c8a4ee73cd8cc4b8b238dc8ae53682c2cb9045e25e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adaa3d4664c6d044f2426c8a4ee73cd8cc4b8b238dc8ae53682c2cb9045e25e4", kill_on_drop: false }`
[INFO] [stdout] adaa3d4664c6d044f2426c8a4ee73cd8cc4b8b238dc8ae53682c2cb9045e25e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b10f646bba871346eea11f29602990b61510045110c752143603de720777575
[INFO] running `Command { std: "docker" "start" "-a" "4b10f646bba871346eea11f29602990b61510045110c752143603de720777575", kill_on_drop: false }`
[INFO] [stderr]    Compiling printd v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `eggs` is never read
[INFO] [stdout]  --> tests/printd.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Bar {
[INFO] [stdout]   |        --- field in this struct
[INFO] [stdout] 6 |     eggs: Vec<usize>,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Bar` 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 0.61s
[INFO] running `Command { std: "docker" "inspect" "4b10f646bba871346eea11f29602990b61510045110c752143603de720777575", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b10f646bba871346eea11f29602990b61510045110c752143603de720777575", kill_on_drop: false }`
[INFO] [stdout] 4b10f646bba871346eea11f29602990b61510045110c752143603de720777575
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 68e19deb9d277f8a38a4360d6ae7a339c5a94c89390395407f4ed896bfd090cb
[INFO] running `Command { std: "docker" "start" "-a" "68e19deb9d277f8a38a4360d6ae7a339c5a94c89390395407f4ed896bfd090cb", kill_on_drop: false }`
[INFO] [stderr] warning: field `eggs` is never read
[INFO] [stderr]  --> tests/printd.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | struct Bar {
[INFO] [stderr]   |        --- field in this struct
[INFO] [stderr] 6 |     eggs: Vec<usize>,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr]   = note: `Bar` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] running 0 tests
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] warning: `printd` (test "printd") generated 1 warning
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/printd-d9af7ae864a76220)
[INFO] [stderr]      Running tests/printd.rs (/opt/rustwide/target/debug/deps/printd-bc09bc42297e6bac)
[INFO] [stderr]    Doc-tests printd
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test printd ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - printd (line 6) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.40s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "68e19deb9d277f8a38a4360d6ae7a339c5a94c89390395407f4ed896bfd090cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68e19deb9d277f8a38a4360d6ae7a339c5a94c89390395407f4ed896bfd090cb", kill_on_drop: false }`
[INFO] [stdout] 68e19deb9d277f8a38a4360d6ae7a339c5a94c89390395407f4ed896bfd090cb