[INFO] cloning repository https://github.com/gustavderdrache/tiger
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gustavderdrache/tiger" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgustavderdrache%2Ftiger", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgustavderdrache%2Ftiger'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 103f4f5f5c9498d9eb869c6fe1f1205a0d398bc5
[INFO] checking gustavderdrache/tiger against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgustavderdrache%2Ftiger" "/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/gustavderdrache/tiger on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gustavderdrache/tiger
[INFO] finished tweaking git repo https://github.com/gustavderdrache/tiger
[INFO] tweaked toml for git repo https://github.com/gustavderdrache/tiger written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/gustavderdrache/tiger already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 984958f3dbdb6a1d876fd2a2f0caf6b7e4b97ad70bcd6c54a276e6c5201a5793
[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" "984958f3dbdb6a1d876fd2a2f0caf6b7e4b97ad70bcd6c54a276e6c5201a5793", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "984958f3dbdb6a1d876fd2a2f0caf6b7e4b97ad70bcd6c54a276e6c5201a5793", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "984958f3dbdb6a1d876fd2a2f0caf6b7e4b97ad70bcd6c54a276e6c5201a5793", kill_on_drop: false }`
[INFO] [stdout] 984958f3dbdb6a1d876fd2a2f0caf6b7e4b97ad70bcd6c54a276e6c5201a5793
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1cabef4d5dda1f359c013951238a1a40dbda3d3c7a64dbf05f4924c21ff16325
[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" "1cabef4d5dda1f359c013951238a1a40dbda3d3c7a64dbf05f4924c21ff16325", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking array-macro v1.0.3
[INFO] [stderr]     Checking indexmap v1.0.2
[INFO] [stderr]     Checking memchr v2.2.0
[INFO] [stderr]     Checking enum-map-internals v0.1.2
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]     Checking humantime v1.2.0
[INFO] [stderr]     Checking aho-corasick v0.7.3
[INFO] [stderr]    Compiling quote v0.4.2
[INFO] [stderr]     Checking regex v1.1.6
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking env_logger v0.6.1
[INFO] [stderr]    Compiling enum-kinds v0.4.1
[INFO] [stderr]    Compiling enum-map-derive v0.4.1
[INFO] [stderr]     Checking enum-map v0.5.0
[INFO] [stderr]     Checking tiger_syntax v0.1.0 (/opt/rustwide/workdir/tiger_syntax)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tiger_syntax/src/token.rs:91:16
[INFO] [stdout]    |
[INFO] [stdout] 91 |         match <AsRef<str>>::as_ref(&maybe_identifer) {
[INFO] [stdout]    |                ^^^^^^^^^^ help: use `dyn`: `dyn AsRef<str>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tiger_syntax/src/token.rs:91:16
[INFO] [stdout]    |
[INFO] [stdout] 91 |         match <AsRef<str>>::as_ref(&maybe_identifer) {
[INFO] [stdout]    |                ^^^^^^^^^^ help: use `dyn`: `dyn AsRef<str>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tiger_syntax/src/token.rs:91:16
[INFO] [stdout]    |
[INFO] [stdout] 91 |         match <AsRef<str>>::as_ref(&maybe_identifer) {
[INFO] [stdout]    |                ^^^^^^^^^^ help: use `dyn`: `<dyn AsRef<str>>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tiger_syntax/src/token.rs:91:16
[INFO] [stdout]    |
[INFO] [stdout] 91 |         match <AsRef<str>>::as_ref(&maybe_identifer) {
[INFO] [stdout]    |                ^^^^^^^^^^ help: use `dyn`: `<dyn AsRef<str>>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tigc v0.1.0 (/opt/rustwide/workdir/tigc)
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.48s
[INFO] running `Command { std: "docker" "inspect" "1cabef4d5dda1f359c013951238a1a40dbda3d3c7a64dbf05f4924c21ff16325", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cabef4d5dda1f359c013951238a1a40dbda3d3c7a64dbf05f4924c21ff16325", kill_on_drop: false }`
[INFO] [stdout] 1cabef4d5dda1f359c013951238a1a40dbda3d3c7a64dbf05f4924c21ff16325