[INFO] cloning repository https://github.com/Michael-Jing/rustlist
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Michael-Jing/rustlist" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichael-Jing%2Frustlist", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichael-Jing%2Frustlist'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5744a4926b9febdbb2cc688e8e9aac6ab7203321
[INFO] checking Michael-Jing/rustlist against try#15a786332e2f0dd343b226ab6bb8ec028a350f73 for pr-81782
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichael-Jing%2Frustlist" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Michael-Jing/rustlist on toolchain 15a786332e2f0dd343b226ab6bb8ec028a350f73
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Michael-Jing/rustlist
[INFO] finished tweaking git repo https://github.com/Michael-Jing/rustlist
[INFO] tweaked toml for git repo https://github.com/Michael-Jing/rustlist written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/Michael-Jing/rustlist already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 04cc7cbefc1f2be1ba0001c2202a63dfe7c3856061346678599c0556f26efa7e
[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" "04cc7cbefc1f2be1ba0001c2202a63dfe7c3856061346678599c0556f26efa7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04cc7cbefc1f2be1ba0001c2202a63dfe7c3856061346678599c0556f26efa7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04cc7cbefc1f2be1ba0001c2202a63dfe7c3856061346678599c0556f26efa7e", kill_on_drop: false }`
[INFO] [stdout] 04cc7cbefc1f2be1ba0001c2202a63dfe7c3856061346678599c0556f26efa7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 58dc805d70ce8175f5ba318736960d9df804f888de4c72a2a15d47e88becc376
[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" "58dc805d70ce8175f5ba318736960d9df804f888de4c72a2a15d47e88becc376", kill_on_drop: false }`
[INFO] [stderr]     Checking lists v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::List`
[INFO] [stdout]   --> src/fifth.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |     use super::List;
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0107]: this struct takes 0 lifetime arguments but 1 lifetime argument was supplied
[INFO] [stdout]   --> src/fifth.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl<'a, T> List<'a, T> {
[INFO] [stdout]    |             ^^^^ ---- help: remove this lifetime argument
[INFO] [stdout]    |             |
[INFO] [stdout]    |             expected 0 lifetime arguments
[INFO] [stdout]    |
[INFO] [stdout] note: struct defined here, with 0 lifetime parameters
[INFO] [stdout]   --> src/fifth.rs:1:12
[INFO] [stdout]    |
[INFO] [stdout] 1  | pub struct List<T> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0107]: this struct takes 0 lifetime arguments but 1 lifetime argument was supplied
[INFO] [stdout]   --> src/fifth.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl<'a, T> List<'a, T> {
[INFO] [stdout]    |             ^^^^ ---- help: remove this lifetime argument
[INFO] [stdout]    |             |
[INFO] [stdout]    |             expected 0 lifetime arguments
[INFO] [stdout]    |
[INFO] [stdout] note: struct defined here, with 0 lifetime parameters
[INFO] [stdout]   --> src/fifth.rs:1:12
[INFO] [stdout]    |
[INFO] [stdout] 1  | pub struct List<T> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0107`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0107`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lists`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "58dc805d70ce8175f5ba318736960d9df804f888de4c72a2a15d47e88becc376", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58dc805d70ce8175f5ba318736960d9df804f888de4c72a2a15d47e88becc376", kill_on_drop: false }`
[INFO] [stdout] 58dc805d70ce8175f5ba318736960d9df804f888de4c72a2a15d47e88becc376