[INFO] fetching crate lxcrond 0.2.1...
[INFO] checking lxcrond-0.2.1 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] extracting crate lxcrond 0.2.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate lxcrond 0.2.1 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lxcrond 0.2.1
[INFO] finished tweaking crates.io crate lxcrond 0.2.1
[INFO] tweaked toml for crates.io crate lxcrond 0.2.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate lxcrond 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded log4rs v0.9.0
[INFO] [stderr]   Downloaded cmdline_words_parser v0.1.0
[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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d58ca6d6f393740253cfbf2b715a7bec9e1bb668b50e6d07f334d584c66523a8
[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" "d58ca6d6f393740253cfbf2b715a7bec9e1bb668b50e6d07f334d584c66523a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d58ca6d6f393740253cfbf2b715a7bec9e1bb668b50e6d07f334d584c66523a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d58ca6d6f393740253cfbf2b715a7bec9e1bb668b50e6d07f334d584c66523a8", kill_on_drop: false }`
[INFO] [stdout] d58ca6d6f393740253cfbf2b715a7bec9e1bb668b50e6d07f334d584c66523a8
[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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9f42988cc99e0d2e8dd4665f8d53ae16ef36acf4dbf37c389539123d0fcc7b3
[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" "e9f42988cc99e0d2e8dd4665f8d53ae16ef36acf4dbf37c389539123d0fcc7b3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking dtoa v0.4.4
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking log-mdc v0.1.0
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]     Checking arc-swap v0.3.11
[INFO] [stderr]     Checking cmdline_words_parser v0.1.0
[INFO] [stderr]     Checking miniz_oxide v0.3.5
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking serde-value v0.5.3
[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]     Checking serde_yaml v0.8.11
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking log4rs v0.9.0
[INFO] [stderr]     Checking lxcrond v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `TimeZone`, `Timelike`
[INFO] [stdout]   --> src/cron.rs:59:18
[INFO] [stdout]    |
[INFO] [stdout] 59 |     use chrono::{Timelike, TimeZone};
[INFO] [stdout]    |                  ^^^^^^^^  ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chrono::format::Fixed::TimezoneOffsetZ`
[INFO] [stdout]   --> src/cron.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |     use chrono::format::Fixed::TimezoneOffsetZ;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/main.rs:32:26
[INFO] [stdout]    |
[INFO] [stdout] 32 |         Err(f) => panic!(f.to_string())
[INFO] [stdout]    |                          ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 32 |         Err(f) => panic!("{}", f.to_string())
[INFO] [stdout]    |                          ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 32 |         Err(f) => std::panic::panic_any(f.to_string())
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/main.rs:32:26
[INFO] [stdout]    |
[INFO] [stdout] 32 |         Err(f) => panic!(f.to_string())
[INFO] [stdout]    |                          ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 32 |         Err(f) => panic!("{}", f.to_string())
[INFO] [stdout]    |                          ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 32 |         Err(f) => std::panic::panic_any(f.to_string())
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.32s
[INFO] running `Command { std: "docker" "inspect" "e9f42988cc99e0d2e8dd4665f8d53ae16ef36acf4dbf37c389539123d0fcc7b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9f42988cc99e0d2e8dd4665f8d53ae16ef36acf4dbf37c389539123d0fcc7b3", kill_on_drop: false }`
[INFO] [stdout] e9f42988cc99e0d2e8dd4665f8d53ae16ef36acf4dbf37c389539123d0fcc7b3