[INFO] updating cached repository https://github.com/crepererum/peter
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 645d49ff37ac0e3f35a12a0546f08e264f7a51df
[INFO] checking crepererum/peter against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrepererum%2Fpeter" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/crepererum/peter on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/crepererum/peter
[INFO] finished tweaking git repo https://github.com/crepererum/peter
[INFO] tweaked toml for git repo https://github.com/crepererum/peter written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/crepererum/peter already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 14e34f5a4200c008b8c8350720187d475942ff3477abd6bde387e9d052c68bfc
[INFO] running `"docker" "start" "-a" "14e34f5a4200c008b8c8350720187d475942ff3477abd6bde387e9d052c68bfc"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling clear_on_drop v0.2.3
[INFO] [stderr]     Checking log v0.4.2
[INFO] [stderr]    Compiling rand v0.5.0-pre.2
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling digest v0.7.4
[INFO] [stderr]     Checking backtrace v0.3.8
[INFO] [stderr]     Checking regex v1.0.1
[INFO] [stderr]    Compiling structopt-derive v0.2.10
[INFO] [stderr]    Compiling snow v0.2.1
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling curve25519-dalek v0.17.0
[INFO] [stderr]     Checking rayon-core v1.4.0
[INFO] [stderr]     Checking env_logger v0.5.10
[INFO] [stderr]     Checking structopt v0.2.10
[INFO] [stderr]     Checking rayon v1.0.1
[INFO] [stderr]     Checking clap-verbosity-flag v0.1.0
[INFO] [stderr]     Checking x25519-dalek v0.2.0
[INFO] [stderr]     Checking quicli v0.3.0
[INFO] [stderr]     Checking peter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ioutils.rs:113:50
[INFO] [stderr]     |
[INFO] [stderr] 113 | pub fn open_reader(fname: &String) -> Result<Box<Read>, Error> {
[INFO] [stderr]     |                                                  ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ioutils.rs:123:50
[INFO] [stderr]     |
[INFO] [stderr] 123 | pub fn open_writer(fname: &String) -> Result<Box<Write>, Error> {
[INFO] [stderr]     |                                                  ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/core.rs:9:1
[INFO] [stderr]    |
[INFO] [stderr] 9  | / lazy_static! {
[INFO] [stderr] 10 | |     static ref PARAMS: NoiseParams = "Noise_X_25519_ChaChaPoly_BLAKE2s".parse().unwrap();
[INFO] [stderr] 11 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ioutils.rs:113:50
[INFO] [stderr]     |
[INFO] [stderr] 113 | pub fn open_reader(fname: &String) -> Result<Box<Read>, Error> {
[INFO] [stderr]     |                                                  ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ioutils.rs:123:50
[INFO] [stderr]     |
[INFO] [stderr] 123 | pub fn open_writer(fname: &String) -> Result<Box<Write>, Error> {
[INFO] [stderr]     |                                                  ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/core.rs:9:1
[INFO] [stderr]    |
[INFO] [stderr] 9  | / lazy_static! {
[INFO] [stderr] 10 | |     static ref PARAMS: NoiseParams = "Noise_X_25519_ChaChaPoly_BLAKE2s".parse().unwrap();
[INFO] [stderr] 11 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.03s
[INFO] running `"docker" "inspect" "14e34f5a4200c008b8c8350720187d475942ff3477abd6bde387e9d052c68bfc"`
[INFO] running `"docker" "rm" "-f" "14e34f5a4200c008b8c8350720187d475942ff3477abd6bde387e9d052c68bfc"`
[INFO] [stdout] 14e34f5a4200c008b8c8350720187d475942ff3477abd6bde387e9d052c68bfc