[INFO] cloning repository https://github.com/Dylan-DPC/thread-lifetime-experiment
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Dylan-DPC/thread-lifetime-experiment" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDylan-DPC%2Fthread-lifetime-experiment", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDylan-DPC%2Fthread-lifetime-experiment'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e8a4f3f52d9fb0400d8eb2ba5f57911ceef3ba11
[INFO] checking Dylan-DPC/thread-lifetime-experiment against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDylan-DPC%2Fthread-lifetime-experiment" "/workspace/builds/worker-71/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-71/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Dylan-DPC/thread-lifetime-experiment on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Dylan-DPC/thread-lifetime-experiment
[INFO] finished tweaking git repo https://github.com/Dylan-DPC/thread-lifetime-experiment
[INFO] tweaked toml for git repo https://github.com/Dylan-DPC/thread-lifetime-experiment written to /workspace/builds/worker-71/source/Cargo.toml
[INFO] crate git repo https://github.com/Dylan-DPC/thread-lifetime-experiment already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/Licenser/simdjson-rs`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded smallvec v0.6.9
[INFO] [stderr]   Downloaded serde_derive v1.0.90
[INFO] [stderr]   Downloaded crossbeam-channel v0.3.8
[INFO] [stderr]   Downloaded ryu v0.2.7
[INFO] [stderr]   Downloaded syn v0.15.30
[INFO] [stderr]   Downloaded cfg-if v0.1.7
[INFO] [stderr]   Downloaded rental-impl v0.5.2
[INFO] [stderr]   Downloaded itoa v0.4.3
[INFO] [stderr]   Downloaded serde v1.0.90
[INFO] [stderr]   Downloaded rental v0.5.3
[INFO] [stderr]   Downloaded page_size v0.4.1
[INFO] [stderr]   Downloaded hashbrown v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d1ac4cd48b48693b21cb2fd12952655556492022020c5154b5e5f8ec53952609
[INFO] running `Command { std: "docker" "start" "-a" "d1ac4cd48b48693b21cb2fd12952655556492022020c5154b5e5f8ec53952609", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1ac4cd48b48693b21cb2fd12952655556492022020c5154b5e5f8ec53952609", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1ac4cd48b48693b21cb2fd12952655556492022020c5154b5e5f8ec53952609", kill_on_drop: false }`
[INFO] [stdout] d1ac4cd48b48693b21cb2fd12952655556492022020c5154b5e5f8ec53952609
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2105144fbf996f38ad333dad59e11c802dbf9b4f98a47520229c0f591360ce0
[INFO] running `Command { std: "docker" "start" "-a" "f2105144fbf996f38ad333dad59e11c802dbf9b4f98a47520229c0f591360ce0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling syn v0.15.30
[INFO] [stderr]    Compiling serde v1.0.90
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking cfg-if v0.1.7
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking smallvec v0.6.9
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]     Checking page_size v0.4.1
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]    Compiling rental-impl v0.5.2
[INFO] [stderr]     Checking rental v0.5.3
[INFO] [stderr]     Checking hashbrown v0.2.0
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking simdjson v0.1.0 (https://github.com/Licenser/simdjson-rs#4d53c41a)
[INFO] [stderr]     Checking thread-lifetime-experiment v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: using `procedural-masquerade` crate
[INFO] [stdout]   --> src/main.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | / rental! {
[INFO] [stdout] 11 | |     mod rentals {
[INFO] [stdout] 12 | |         use super::*;
[INFO] [stdout] 13 | |         #[rental_mut(covariant,debug)]
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | |     }
[INFO] [stdout] 19 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(proc_macro_back_compat)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #83125 <https://github.com/rust-lang/rust/issues/83125>
[INFO] [stdout]    = note: The `procedural-masquerade` crate has been unnecessary since Rust 1.30.0. Versions of this crate below 0.1.7 will eventually stop compiling.
[INFO] [stdout]    = note: this error originates in the macro `rental` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: using `procedural-masquerade` crate
[INFO] [stdout]   --> src/main.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | / rental! {
[INFO] [stdout] 11 | |     mod rentals {
[INFO] [stdout] 12 | |         use super::*;
[INFO] [stdout] 13 | |         #[rental_mut(covariant,debug)]
[INFO] [stdout] ...  |
[INFO] [stdout] 18 | |     }
[INFO] [stdout] 19 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(proc_macro_back_compat)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #83125 <https://github.com/rust-lang/rust/issues/83125>
[INFO] [stdout]    = note: The `procedural-masquerade` crate has been unnecessary since Rust 1.30.0. Versions of this crate below 0.1.7 will eventually stop compiling.
[INFO] [stdout]    = note: this error originates in the macro `rental` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `thread-lifetime-experiment` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f2105144fbf996f38ad333dad59e11c802dbf9b4f98a47520229c0f591360ce0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2105144fbf996f38ad333dad59e11c802dbf9b4f98a47520229c0f591360ce0", kill_on_drop: false }`
[INFO] [stdout] f2105144fbf996f38ad333dad59e11c802dbf9b4f98a47520229c0f591360ce0