[INFO] fetching crate everustc 0.1.0...
[INFO] checking everustc-0.1.0 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] extracting crate everustc 0.1.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate everustc 0.1.0 on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate everustc 0.1.0
[INFO] finished tweaking crates.io crate everustc 0.1.0
[INFO] tweaked toml for crates.io crate everustc 0.1.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b52cfa852c2ca90dc7681eed1607b88c62ca06a3fbc58345970f225fc01d42a0
[INFO] running `Command { std: "docker" "start" "-a" "b52cfa852c2ca90dc7681eed1607b88c62ca06a3fbc58345970f225fc01d42a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b52cfa852c2ca90dc7681eed1607b88c62ca06a3fbc58345970f225fc01d42a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b52cfa852c2ca90dc7681eed1607b88c62ca06a3fbc58345970f225fc01d42a0", kill_on_drop: false }`
[INFO] [stdout] b52cfa852c2ca90dc7681eed1607b88c62ca06a3fbc58345970f225fc01d42a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6638493ed01862142c7e1dc25d127bce39d84ad91edd7383e4f98d6480076847
[INFO] running `Command { std: "docker" "start" "-a" "6638493ed01862142c7e1dc25d127bce39d84ad91edd7383e4f98d6480076847", kill_on_drop: false }`
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]     Checking encode_unicode v0.1.3
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]     Checking everust v0.2.0
[INFO] [stderr]     Checking rustyline v1.0.0
[INFO] [stderr]     Checking everustc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:22:32
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/main.rs:3:9
[INFO] [stdout]    |
[INFO] [stdout] 3  | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(bare_trait_objects)]` implied by `#[deny(warnings)]`
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:52:26
[INFO] [stdout]    |
[INFO] [stdout] 52 | fn print_error_trace(e: &Error) -> io::Result<()> {
[INFO] [stdout]    |                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:41:30
[INFO] [stdout]    |
[INFO] [stdout] 41 |         write!(f, "{}", self.description())
[INFO] [stdout]    |                              ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/main.rs:3:9
[INFO] [stdout]    |
[INFO] [stdout] 3  | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(deprecated)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:22:32
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/main.rs:3:9
[INFO] [stdout]    |
[INFO] [stdout] 3  | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(bare_trait_objects)]` implied by `#[deny(warnings)]`
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:52:26
[INFO] [stdout]    |
[INFO] [stdout] 52 | fn print_error_trace(e: &Error) -> io::Result<()> {
[INFO] [stdout]    |                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/main.rs:55:31
[INFO] [stdout]    |
[INFO] [stdout] 55 |     while let Some(cause) = e.cause() {
[INFO] [stdout]    |                               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `everustc`
[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] error: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:41:30
[INFO] [stdout]    |
[INFO] [stdout] 41 |         write!(f, "{}", self.description())
[INFO] [stdout]    |                              ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/main.rs:3:9
[INFO] [stdout]    |
[INFO] [stdout] 3  | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(deprecated)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/main.rs:55:31
[INFO] [stdout]    |
[INFO] [stdout] 55 |     while let Some(cause) = e.cause() {
[INFO] [stdout]    |                               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "6638493ed01862142c7e1dc25d127bce39d84ad91edd7383e4f98d6480076847", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6638493ed01862142c7e1dc25d127bce39d84ad91edd7383e4f98d6480076847", kill_on_drop: false }`
[INFO] [stdout] 6638493ed01862142c7e1dc25d127bce39d84ad91edd7383e4f98d6480076847