[INFO] cloning repository https://github.com/xudifsd/rust_leet
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xudifsd/rust_leet" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxudifsd%2Frust_leet", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxudifsd%2Frust_leet'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e00a584e28efb1d38fcd92ba490e402f8e1b6b2f
[INFO] testing xudifsd/rust_leet against master#d7bd9cd469ff6871420007f091ef52fc32d2ca99 for pr-121417
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxudifsd%2Frust_leet" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xudifsd/rust_leet on toolchain d7bd9cd469ff6871420007f091ef52fc32d2ca99
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d7bd9cd469ff6871420007f091ef52fc32d2ca99" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/xudifsd/rust_leet
[INFO] finished tweaking git repo https://github.com/xudifsd/rust_leet
[INFO] tweaked toml for git repo https://github.com/xudifsd/rust_leet written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/xudifsd/rust_leet 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" "+d7bd9cd469ff6871420007f091ef52fc32d2ca99" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded leetcode_test v0.1.1
[INFO] [stderr]   Downloaded leetcode_prelude v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+d7bd9cd469ff6871420007f091ef52fc32d2ca99" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1e19cf1136123d0de29cd70517968706f01e85b5da6faacb9a4e7ea59997ac97
[INFO] running `Command { std: "docker" "start" "-a" "1e19cf1136123d0de29cd70517968706f01e85b5da6faacb9a4e7ea59997ac97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e19cf1136123d0de29cd70517968706f01e85b5da6faacb9a4e7ea59997ac97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e19cf1136123d0de29cd70517968706f01e85b5da6faacb9a4e7ea59997ac97", kill_on_drop: false }`
[INFO] [stdout] 1e19cf1136123d0de29cd70517968706f01e85b5da6faacb9a4e7ea59997ac97
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+d7bd9cd469ff6871420007f091ef52fc32d2ca99" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3488cb1f342b1aad0de298b468b92ab582e96df98807c0945a0cb29d4015434c
[INFO] running `Command { std: "docker" "start" "-a" "3488cb1f342b1aad0de298b468b92ab582e96df98807c0945a0cb29d4015434c", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.89
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]    Compiling itoa v0.4.3
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling leetcode_test v0.1.1
[INFO] [stderr]    Compiling leetcode_prelude v0.2.2
[INFO] [stderr]    Compiling rust_leet v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `tail` is never read
[INFO] [stdout]   --> src/design_linked_list.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub struct MyLinkedList {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 46 |     head: Rc<RefCell<MyListNode>>,
[INFO] [stdout] 47 |     tail: Rc<RefCell<MyListNode>>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MyLinkedList` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.68s
[INFO] running `Command { std: "docker" "inspect" "3488cb1f342b1aad0de298b468b92ab582e96df98807c0945a0cb29d4015434c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3488cb1f342b1aad0de298b468b92ab582e96df98807c0945a0cb29d4015434c", kill_on_drop: false }`
[INFO] [stdout] 3488cb1f342b1aad0de298b468b92ab582e96df98807c0945a0cb29d4015434c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+d7bd9cd469ff6871420007f091ef52fc32d2ca99" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7a803a58df0a65aad53e1d7b6b29a4a1a1a6e4277f5df430e311888ea678047
[INFO] running `Command { std: "docker" "start" "-a" "c7a803a58df0a65aad53e1d7b6b29a4a1a1a6e4277f5df430e311888ea678047", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_leet v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `tail` is never read
[INFO] [stdout]   --> src/design_linked_list.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub struct MyLinkedList {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 46 |     head: Rc<RefCell<MyListNode>>,
[INFO] [stdout] 47 |     tail: Rc<RefCell<MyListNode>>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MyLinkedList` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "c7a803a58df0a65aad53e1d7b6b29a4a1a1a6e4277f5df430e311888ea678047", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7a803a58df0a65aad53e1d7b6b29a4a1a1a6e4277f5df430e311888ea678047", kill_on_drop: false }`
[INFO] [stdout] c7a803a58df0a65aad53e1d7b6b29a4a1a1a6e4277f5df430e311888ea678047
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+d7bd9cd469ff6871420007f091ef52fc32d2ca99" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8f4aaa3e1085ba848dbca73f1e548bd73b93673ecd60151d84e7501cc8ab7d34
[INFO] running `Command { std: "docker" "start" "-a" "8f4aaa3e1085ba848dbca73f1e548bd73b93673ecd60151d84e7501cc8ab7d34", kill_on_drop: false }`
[INFO] [stderr] warning: field `tail` is never read
[INFO] [stderr]   --> src/design_linked_list.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub struct MyLinkedList {
[INFO] [stderr]    |            ------------ field in this struct
[INFO] [stderr] 46 |     head: Rc<RefCell<MyListNode>>,
[INFO] [stderr] 47 |     tail: Rc<RefCell<MyListNode>>,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `MyLinkedList` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_leet` (bin "rust_leet" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_leet-35a1ad3ffdc90b42)
[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" "8f4aaa3e1085ba848dbca73f1e548bd73b93673ecd60151d84e7501cc8ab7d34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f4aaa3e1085ba848dbca73f1e548bd73b93673ecd60151d84e7501cc8ab7d34", kill_on_drop: false }`
[INFO] [stdout] 8f4aaa3e1085ba848dbca73f1e548bd73b93673ecd60151d84e7501cc8ab7d34
[INFO] testing xudifsd/rust_leet against try#393ef12c970fbc7f294cd96c35cb76f9591bc1d6 for pr-121417
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxudifsd%2Frust_leet" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xudifsd/rust_leet on toolchain 393ef12c970fbc7f294cd96c35cb76f9591bc1d6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/xudifsd/rust_leet
[INFO] finished tweaking git repo https://github.com/xudifsd/rust_leet
[INFO] tweaked toml for git repo https://github.com/xudifsd/rust_leet written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/xudifsd/rust_leet 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" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 52ab758c7a697dcfa8732fb7654c4af68460f1036ae033bd47fd544df8de20d2
[INFO] running `Command { std: "docker" "start" "-a" "52ab758c7a697dcfa8732fb7654c4af68460f1036ae033bd47fd544df8de20d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52ab758c7a697dcfa8732fb7654c4af68460f1036ae033bd47fd544df8de20d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52ab758c7a697dcfa8732fb7654c4af68460f1036ae033bd47fd544df8de20d2", kill_on_drop: false }`
[INFO] [stdout] 52ab758c7a697dcfa8732fb7654c4af68460f1036ae033bd47fd544df8de20d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9dd23cded96b1b3e175d744f10fe2c1ade5ab3a774884b2b2cdf23fedb67cd68
[INFO] running `Command { std: "docker" "start" "-a" "9dd23cded96b1b3e175d744f10fe2c1ade5ab3a774884b2b2cdf23fedb67cd68", kill_on_drop: false }`
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]    Compiling serde v1.0.89
[INFO] [stderr]    Compiling itoa v0.4.3
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling leetcode_test v0.1.1
[INFO] [stderr]    Compiling leetcode_prelude v0.2.2
[INFO] [stderr]    Compiling rust_leet v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `tail` is never read
[INFO] [stdout]   --> src/design_linked_list.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub struct MyLinkedList {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 46 |     head: Rc<RefCell<MyListNode>>,
[INFO] [stdout] 47 |     tail: Rc<RefCell<MyListNode>>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MyLinkedList` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.69s
[INFO] running `Command { std: "docker" "inspect" "9dd23cded96b1b3e175d744f10fe2c1ade5ab3a774884b2b2cdf23fedb67cd68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9dd23cded96b1b3e175d744f10fe2c1ade5ab3a774884b2b2cdf23fedb67cd68", kill_on_drop: false }`
[INFO] [stdout] 9dd23cded96b1b3e175d744f10fe2c1ade5ab3a774884b2b2cdf23fedb67cd68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1648af22e071d92be5ed178b2eed94a69164864d58cdfb7246b25a902f579f8d
[INFO] running `Command { std: "docker" "start" "-a" "1648af22e071d92be5ed178b2eed94a69164864d58cdfb7246b25a902f579f8d", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_leet v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `tail` is never read
[INFO] [stdout]   --> src/design_linked_list.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub struct MyLinkedList {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 46 |     head: Rc<RefCell<MyListNode>>,
[INFO] [stdout] 47 |     tail: Rc<RefCell<MyListNode>>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MyLinkedList` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: LC_ALL="C" PATH="/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/bin:/opt/rustwide/cargo-home/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" VSLANG="1033" "cc" "-m64" "/tmp/rustcSovXjP/symbols.o" "/opt/rustwide/target/debug/deps/rust_leet-35a1ad3ffdc90b42.rust_leet.65f0e615613e7f22-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/rust_leet-35a1ad3ffdc90b42.1jf82yioeh4h2pf0.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libtest-0cd255ee414ee1b7.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgetopts-d94d981cfad2e302.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunicode_width-bc5c85135ebc2d28.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_std-a783581261810918.rlib" "/opt/rustwide/target/debug/deps/libleetcode_prelude-25f97c7936998e68.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-41777efa78699460.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-c112ec61d40d65ca.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-20279e89ddf4a3cc.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libmemchr-04ebab3d6657d9b7.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-43ee38a2c180d260.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-d8bc9f4e15c9d54f.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-e6b80df35ce800f7.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-e1bb29bdfec551bd.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-7d60d25f346b95e2.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-f568bda7d014913a.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-a759d15c36457a02.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-dd7d06242b5022a0.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-f4343bfa39e809a4.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-af1cb76e71c5600e.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-8c4c4e24ed6290fa.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-58f5eb9eff701be9.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-9686387289eaa322.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-632ae0f28c5e55ff.rlib" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-b7903030bc1640bf.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/rust_leet-35a1ad3ffdc90b42" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: /usr/bin/ld: final link failed: No space left on device
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_leet` (bin "rust_leet" test) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "1648af22e071d92be5ed178b2eed94a69164864d58cdfb7246b25a902f579f8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1648af22e071d92be5ed178b2eed94a69164864d58cdfb7246b25a902f579f8d", kill_on_drop: false }`
[INFO] [stdout] 1648af22e071d92be5ed178b2eed94a69164864d58cdfb7246b25a902f579f8d