[INFO] cloning repository https://github.com/toidiu/talk_rust_2093
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/toidiu/talk_rust_2093" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftoidiu%2Ftalk_rust_2093", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftoidiu%2Ftalk_rust_2093'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a7ad5b55a8620d45588a427aca31290ce8cef0fd
[INFO] testing toidiu/talk_rust_2093 against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftoidiu%2Ftalk_rust_2093" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/toidiu/talk_rust_2093 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/toidiu/talk_rust_2093
[INFO] finished tweaking git repo https://github.com/toidiu/talk_rust_2093
[INFO] tweaked toml for git repo https://github.com/toidiu/talk_rust_2093 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/toidiu/talk_rust_2093 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ff1da93fad2f0ba0489292b7f1bd6444714a968a1d47b8a8862c45ac6bb77423
[INFO] running `Command { std: "docker" "start" "-a" "ff1da93fad2f0ba0489292b7f1bd6444714a968a1d47b8a8862c45ac6bb77423", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff1da93fad2f0ba0489292b7f1bd6444714a968a1d47b8a8862c45ac6bb77423", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff1da93fad2f0ba0489292b7f1bd6444714a968a1d47b8a8862c45ac6bb77423", kill_on_drop: false }`
[INFO] [stdout] ff1da93fad2f0ba0489292b7f1bd6444714a968a1d47b8a8862c45ac6bb77423
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d0f0f060e0de4ae919b38e8d6c5395f576cbae9a71124f03cd878f372169190
[INFO] running `Command { std: "docker" "start" "-a" "7d0f0f060e0de4ae919b38e8d6c5395f576cbae9a71124f03cd878f372169190", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling infer v0.1.0 (/opt/rustwide/workdir/lib/infer)
[INFO] [stderr]    Compiling explicit v0.1.0 (/opt/rustwide/workdir/lib/explicit)
[INFO] [stdout] warning: struct is never constructed: `Foo`
[INFO] [stdout]  --> lib/explicit/src/lib.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Foo<'a, T>
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> lib/infer/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(infer_outlives_requirements)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `infer_outlives_requirements` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[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 E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `infer`
[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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "7d0f0f060e0de4ae919b38e8d6c5395f576cbae9a71124f03cd878f372169190", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d0f0f060e0de4ae919b38e8d6c5395f576cbae9a71124f03cd878f372169190", kill_on_drop: false }`
[INFO] [stdout] 7d0f0f060e0de4ae919b38e8d6c5395f576cbae9a71124f03cd878f372169190
