[INFO] cloning repository https://github.com/talesluna/rust-printers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/talesluna/rust-printers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftalesluna%2Frust-printers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftalesluna%2Frust-printers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 56eb5b67e4d55d552063478c97b35f7801fe5784
[INFO] testing talesluna/rust-printers against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftalesluna%2Frust-printers" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/talesluna/rust-printers on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/talesluna/rust-printers
[INFO] finished tweaking git repo https://github.com/talesluna/rust-printers
[INFO] tweaked toml for git repo https://github.com/talesluna/rust-printers written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/talesluna/rust-printers already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e9f59067daba7af6a5adc812d004190d7424b2a77872c58b17c84a76c0e01e99
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e9f59067daba7af6a5adc812d004190d7424b2a77872c58b17c84a76c0e01e99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e9f59067daba7af6a5adc812d004190d7424b2a77872c58b17c84a76c0e01e99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9f59067daba7af6a5adc812d004190d7424b2a77872c58b17c84a76c0e01e99", kill_on_drop: false }`
[INFO] [stdout] e9f59067daba7af6a5adc812d004190d7424b2a77872c58b17c84a76c0e01e99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac6c3062db68b1acd4b736fa06779a038aef36c6e8c1b401420672fd2f13a084
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ac6c3062db68b1acd4b736fa06779a038aef36c6e8c1b401420672fd2f13a084", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling printers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> src/lib.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/lib.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     id: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `status`
[INFO] [stdout]   --> src/lib.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     status: JobStatus,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `printer_id`
[INFO] [stdout]   --> src/lib.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     printer_id: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.58s
[INFO] running `Command { std: "docker" "inspect" "ac6c3062db68b1acd4b736fa06779a038aef36c6e8c1b401420672fd2f13a084", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac6c3062db68b1acd4b736fa06779a038aef36c6e8c1b401420672fd2f13a084", kill_on_drop: false }`
[INFO] [stdout] ac6c3062db68b1acd4b736fa06779a038aef36c6e8c1b401420672fd2f13a084
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3261c7f9d8b1a7b44c7e735356d1739e514929c9c4ba2cd6b64a6ff174ea6a1c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3261c7f9d8b1a7b44c7e735356d1739e514929c9c4ba2cd6b64a6ff174ea6a1c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> src/lib.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/lib.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     id: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `status`
[INFO] [stdout]   --> src/lib.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     status: JobStatus,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `printer_id`
[INFO] [stdout]   --> src/lib.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     printer_id: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling printers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> src/lib.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/lib.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     id: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `status`
[INFO] [stdout]   --> src/lib.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     status: JobStatus,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `printer_id`
[INFO] [stdout]   --> src/lib.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     printer_id: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 56.92s
[INFO] running `Command { std: "docker" "inspect" "3261c7f9d8b1a7b44c7e735356d1739e514929c9c4ba2cd6b64a6ff174ea6a1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3261c7f9d8b1a7b44c7e735356d1739e514929c9c4ba2cd6b64a6ff174ea6a1c", kill_on_drop: false }`
[INFO] [stdout] 3261c7f9d8b1a7b44c7e735356d1739e514929c9c4ba2cd6b64a6ff174ea6a1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d7d4357244cd1733c54f020b87eabe43bebcbd28115916f6abc6f3db59747dec
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d7d4357244cd1733c54f020b87eabe43bebcbd28115916f6abc6f3db59747dec", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `name`
[INFO] [stderr]   --> src/lib.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     name: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `id`
[INFO] [stderr]   --> src/lib.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     id: String,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `status`
[INFO] [stderr]   --> src/lib.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     status: JobStatus,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `printer_id`
[INFO] [stderr]   --> src/lib.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     printer_id: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `printers` (lib) generated 4 warnings
[INFO] [stderr] warning: `printers` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/printers-0617649a09306e91)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests printers
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d7d4357244cd1733c54f020b87eabe43bebcbd28115916f6abc6f3db59747dec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7d4357244cd1733c54f020b87eabe43bebcbd28115916f6abc6f3db59747dec", kill_on_drop: false }`
[INFO] [stdout] d7d4357244cd1733c54f020b87eabe43bebcbd28115916f6abc6f3db59747dec