[INFO] fetching crate argot 0.2.2...
[INFO] checking argot-0.2.2 against beta for pr-78714
[INFO] extracting crate argot 0.2.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate argot 0.2.2 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate argot 0.2.2
[INFO] finished tweaking crates.io crate argot 0.2.2
[INFO] tweaked toml for crates.io crate argot 0.2.2 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7cade9818a4dad30c41592ffcb85b90a2515b7071cd29b5320182fb71bb60ad9
[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" "7cade9818a4dad30c41592ffcb85b90a2515b7071cd29b5320182fb71bb60ad9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7cade9818a4dad30c41592ffcb85b90a2515b7071cd29b5320182fb71bb60ad9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cade9818a4dad30c41592ffcb85b90a2515b7071cd29b5320182fb71bb60ad9", kill_on_drop: false }`
[INFO] [stdout] 7cade9818a4dad30c41592ffcb85b90a2515b7071cd29b5320182fb71bb60ad9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 200446e80d91c9d51d4f7b8a09b030710031f6a5d38740aef49867758544e722
[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" "200446e80d91c9d51d4f7b8a09b030710031f6a5d38740aef49867758544e722", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking glob v0.2.11
[INFO] [stderr]     Checking simple-error v0.1.12
[INFO] [stderr]     Checking instant v0.1.8
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]     Checking toml v0.5.7
[INFO] [stderr]     Checking number_prefix v0.2.8
[INFO] [stderr]     Checking terminal_size v0.1.13
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking os_type v2.2.0
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking console v0.13.0
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking indicatif v0.10.2
[INFO] [stderr]     Checking human-panic v1.0.3
[INFO] [stderr]     Checking argot v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/rendering.rs:22:78
[INFO] [stdout]    |
[INFO] [stdout] 22 |             Err(why) => panic!("Couldn't create {}: {}", path.display(), why.description()),
[INFO] [stdout]    |                                                                              ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/rendering.rs:30:21
[INFO] [stdout]    |
[INFO] [stdout] 30 |                 why.description()
[INFO] [stdout]    |                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/rendering.rs:22:78
[INFO] [stdout]    |
[INFO] [stdout] 22 |             Err(why) => panic!("Couldn't create {}: {}", path.display(), why.description()),
[INFO] [stdout]    |                                                                              ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/rendering.rs:30:21
[INFO] [stdout]    |
[INFO] [stdout] 30 |                 why.description()
[INFO] [stdout]    |                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser.rs:157:29
[INFO] [stdout]     |
[INFO] [stdout] 157 |                         let mut inner_content = Vec::new();
[INFO] [stdout]     |                             ----^^^^^^^^^^^^^
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser.rs:157:29
[INFO] [stdout]     |
[INFO] [stdout] 157 |                         let mut inner_content = Vec::new();
[INFO] [stdout]     |                             ----^^^^^^^^^^^^^
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.13s
[INFO] running `Command { std: "docker" "inspect" "200446e80d91c9d51d4f7b8a09b030710031f6a5d38740aef49867758544e722", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "200446e80d91c9d51d4f7b8a09b030710031f6a5d38740aef49867758544e722", kill_on_drop: false }`
[INFO] [stdout] 200446e80d91c9d51d4f7b8a09b030710031f6a5d38740aef49867758544e722