[INFO] cloning repository https://github.com/WalrusGumboot/skik
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/WalrusGumboot/skik" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWalrusGumboot%2Fskik", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWalrusGumboot%2Fskik'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e2ce196c1c7adad833af4c741dafa79017a239fc
[INFO] testing WalrusGumboot/skik against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWalrusGumboot%2Fskik" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/WalrusGumboot/skik 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/WalrusGumboot/skik
[INFO] finished tweaking git repo https://github.com/WalrusGumboot/skik
[INFO] tweaked toml for git repo https://github.com/WalrusGumboot/skik written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/WalrusGumboot/skik 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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 3db2f5e96891c6fde88d58690e3176f016174a8ca7bd5b2679327e0c1ea68aea
[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" "3db2f5e96891c6fde88d58690e3176f016174a8ca7bd5b2679327e0c1ea68aea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3db2f5e96891c6fde88d58690e3176f016174a8ca7bd5b2679327e0c1ea68aea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3db2f5e96891c6fde88d58690e3176f016174a8ca7bd5b2679327e0c1ea68aea", kill_on_drop: false }`
[INFO] [stdout] 3db2f5e96891c6fde88d58690e3176f016174a8ca7bd5b2679327e0c1ea68aea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 029e27861d408a50efd247d21627dc218636c6c04a71a742ce7ab2d56809ae5b
[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" "029e27861d408a50efd247d21627dc218636c6c04a71a742ce7ab2d56809ae5b", kill_on_drop: false }`
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling termion v1.5.6
[INFO] [stderr]    Compiling skik v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `last_line` is never read
[INFO] [stdout]   --> src/main.rs:78:10
[INFO] [stdout]    |
[INFO] [stdout] 78 |     let mut last_line = 6; //TODO: dynamically change this
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stdout`
[INFO] [stdout]    --> src/main.rs:179:6
[INFO] [stdout]     |
[INFO] [stdout] 179 |     let stdout = io::stdout().into_raw_mode();
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stdout`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:177:6
[INFO] [stdout]     |
[INFO] [stdout] 177 |     let mut status = String::from("ready.");
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.35s
[INFO] running `Command { std: "docker" "inspect" "029e27861d408a50efd247d21627dc218636c6c04a71a742ce7ab2d56809ae5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "029e27861d408a50efd247d21627dc218636c6c04a71a742ce7ab2d56809ae5b", kill_on_drop: false }`
[INFO] [stdout] 029e27861d408a50efd247d21627dc218636c6c04a71a742ce7ab2d56809ae5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 587a4cfaf44605120322207bead926f6a5b0f631015d0ff8c826cde655171513
[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" "587a4cfaf44605120322207bead926f6a5b0f631015d0ff8c826cde655171513", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling skik v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `last_line` is never read
[INFO] [stdout]   --> src/main.rs:78:10
[INFO] [stdout]    |
[INFO] [stdout] 78 |     let mut last_line = 6; //TODO: dynamically change this
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stdout`
[INFO] [stdout]    --> src/main.rs:179:6
[INFO] [stdout]     |
[INFO] [stdout] 179 |     let stdout = io::stdout().into_raw_mode();
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stdout`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:177:6
[INFO] [stdout]     |
[INFO] [stdout] 177 |     let mut status = String::from("ready.");
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.71s
[INFO] running `Command { std: "docker" "inspect" "587a4cfaf44605120322207bead926f6a5b0f631015d0ff8c826cde655171513", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "587a4cfaf44605120322207bead926f6a5b0f631015d0ff8c826cde655171513", kill_on_drop: false }`
[INFO] [stdout] 587a4cfaf44605120322207bead926f6a5b0f631015d0ff8c826cde655171513
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 3bdd0508d4e2c488bb114feb33a5bf2927ee5aba93ffd90f9fd7d2adc8dc948c
[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" "3bdd0508d4e2c488bb114feb33a5bf2927ee5aba93ffd90f9fd7d2adc8dc948c", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `last_line` is never read
[INFO] [stderr]   --> src/main.rs:78:10
[INFO] [stderr]    |
[INFO] [stderr] 78 |     let mut last_line = 6; //TODO: dynamically change this
[INFO] [stderr]    |             ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `stdout`
[INFO] [stderr]    --> src/main.rs:179:6
[INFO] [stderr]     |
[INFO] [stderr] 179 |     let stdout = io::stdout().into_raw_mode();
[INFO] [stderr]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_stdout`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:177:6
[INFO] [stderr]     |
[INFO] [stderr] 177 |     let mut status = String::from("ready.");
[INFO] [stderr]     |         ----^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `skik` (bin "skik" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/skik-8940c2bc2477c691)
[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" "3bdd0508d4e2c488bb114feb33a5bf2927ee5aba93ffd90f9fd7d2adc8dc948c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bdd0508d4e2c488bb114feb33a5bf2927ee5aba93ffd90f9fd7d2adc8dc948c", kill_on_drop: false }`
[INFO] [stdout] 3bdd0508d4e2c488bb114feb33a5bf2927ee5aba93ffd90f9fd7d2adc8dc948c