[INFO] fetching crate websession 0.12.1...
[INFO] checking websession-0.12.1 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] extracting crate websession 0.12.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate websession 0.12.1 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 websession 0.12.1
[INFO] finished tweaking crates.io crate websession 0.12.1
[INFO] tweaked toml for crates.io crate websession 0.12.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate websession 0.12.1 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 blowfish v0.7.0
[INFO] [stderr]   Downloaded pwhash v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] e8494af01b28fba830cef21fbb7607117b3d3d7ead817863ccdb56624727a517
[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" "e8494af01b28fba830cef21fbb7607117b3d3d7ead817863ccdb56624727a517", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e8494af01b28fba830cef21fbb7607117b3d3d7ead817863ccdb56624727a517", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8494af01b28fba830cef21fbb7607117b3d3d7ead817863ccdb56624727a517", kill_on_drop: false }`
[INFO] [stdout] e8494af01b28fba830cef21fbb7607117b3d3d7ead817863ccdb56624727a517
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 2a6d24c54d588258cd8c6e016fb68acc8a2f890e6225f084f08ffdf96abcd10d
[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" "2a6d24c54d588258cd8c6e016fb68acc8a2f890e6225f084f08ffdf96abcd10d", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking bencher v0.1.5
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking rpassword v5.0.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking cipher v0.2.5
[INFO] [stderr]     Checking crypto-mac v0.10.0
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking hmac v0.10.1
[INFO] [stderr]     Checking sha-1 v0.9.3
[INFO] [stderr]     Checking sha2 v0.9.3
[INFO] [stderr]     Checking md-5 v0.9.1
[INFO] [stderr]     Checking blowfish v0.7.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking pwhash v1.0.0
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking websession v0.12.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/bin/simple.rs:24:26
[INFO] [stdout]    |
[INFO] [stdout] 24 |         Err(e) => panic!(format!("{:?}", e)),
[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]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 24 |         Err(e) => panic!("{:?}", e),
[INFO] [stdout]    |                         --       --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/bin/simple.rs:27:32
[INFO] [stdout]    |
[INFO] [stdout] 27 |             Err(err) => panic!(format!("{:?}", err)),
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 27 |             Err(err) => panic!("{:?}", err),
[INFO] [stdout]    |                               --         --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/bin/simple.rs:24:26
[INFO] [stdout]    |
[INFO] [stdout] 24 |         Err(e) => panic!(format!("{:?}", e)),
[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]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 24 |         Err(e) => panic!("{:?}", e),
[INFO] [stdout]    |                         --       --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/bin/simple.rs:27:32
[INFO] [stdout]    |
[INFO] [stdout] 27 |             Err(err) => panic!(format!("{:?}", err)),
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 27 |             Err(err) => panic!("{:?}", err),
[INFO] [stdout]    |                               --         --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.00s
[INFO] running `Command { std: "docker" "inspect" "2a6d24c54d588258cd8c6e016fb68acc8a2f890e6225f084f08ffdf96abcd10d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a6d24c54d588258cd8c6e016fb68acc8a2f890e6225f084f08ffdf96abcd10d", kill_on_drop: false }`
[INFO] [stdout] 2a6d24c54d588258cd8c6e016fb68acc8a2f890e6225f084f08ffdf96abcd10d