[INFO] fetching crate libpcp 0.6.4...
[INFO] checking libpcp-0.6.4 against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819
[INFO] extracting crate libpcp 0.6.4 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate libpcp 0.6.4 on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libpcp 0.6.4
[INFO] finished tweaking crates.io crate libpcp 0.6.4
[INFO] tweaked toml for crates.io crate libpcp 0.6.4 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e9255a098c40f98919b65fdbb1e89db4ea31c48665dbb11ba68365a996b5211e
[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" "e9255a098c40f98919b65fdbb1e89db4ea31c48665dbb11ba68365a996b5211e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e9255a098c40f98919b65fdbb1e89db4ea31c48665dbb11ba68365a996b5211e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9255a098c40f98919b65fdbb1e89db4ea31c48665dbb11ba68365a996b5211e", kill_on_drop: false }`
[INFO] [stdout] e9255a098c40f98919b65fdbb1e89db4ea31c48665dbb11ba68365a996b5211e
[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" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ece2d05194d95720efec64d64ce6922efe0d8e645090cfb6274dc065a4a8fc5
[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" "4ece2d05194d95720efec64d64ce6922efe0d8e645090cfb6274dc065a4a8fc5", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking trilean v1.0.1
[INFO] [stderr]     Checking vec_map v0.6.0
[INFO] [stderr]     Checking bit-set v0.2.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking gcollections v1.4.0
[INFO] [stderr]     Checking intervallum v1.3.0
[INFO] [stderr]     Checking libpcp v0.6.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/libpcp/propagation/reactors/indexed_deps.rs:45:7
[INFO] [stdout]    |
[INFO] [stdout] 45 | /       format!("Reactor IndexedDeps has been initialized for {} variables but `{}` of the variable {} was requested.",
[INFO] [stdout] 46 | |         self.num_vars(), op, var));
[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] 45 |       "Reactor IndexedDeps has been initialized for {} variables but `{}` of the variable {} was requested.",
[INFO] [stdout] 46 |         self.num_vars(), op, var);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/libpcp/propagation/store.rs:140:42
[INFO] [stdout]     |
[INFO] [stdout] 140 |           debug_assert!(v < vstore.size(), format!(
[INFO] [stdout]     |  __________________________________________^
[INFO] [stdout] 141 | |           "The propagator {:?} has a dependency to the variable {} which is not in the vstore (of size {}).\n\
[INFO] [stdout] 142 | |           Hint: you should not manually create `Identity` struct, if you do make sure they contain relevant index to the variable vstore.",
[INFO] [stdout] 143 | |           self[p_idx], v, vstore.size()));
[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] 140 |         debug_assert!(v < vstore.size(), 
[INFO] [stdout] 141 |           "The propagator {:?} has a dependency to the variable {} which is not in the vstore (of size {}).\n\
[INFO] [stdout] 142 |           Hint: you should not manually create `Identity` struct, if you do make sure they contain relevant index to the variable vstore.",
[INFO] [stdout] 143 |           self[p_idx], v, vstore.size());
[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/libpcp/propagation/reactors/indexed_deps.rs:45:7
[INFO] [stdout]    |
[INFO] [stdout] 45 | /       format!("Reactor IndexedDeps has been initialized for {} variables but `{}` of the variable {} was requested.",
[INFO] [stdout] 46 | |         self.num_vars(), op, var));
[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] 45 |       "Reactor IndexedDeps has been initialized for {} variables but `{}` of the variable {} was requested.",
[INFO] [stdout] 46 |         self.num_vars(), op, var);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/libpcp/propagation/store.rs:140:42
[INFO] [stdout]     |
[INFO] [stdout] 140 |           debug_assert!(v < vstore.size(), format!(
[INFO] [stdout]     |  __________________________________________^
[INFO] [stdout] 141 | |           "The propagator {:?} has a dependency to the variable {} which is not in the vstore (of size {}).\n\
[INFO] [stdout] 142 | |           Hint: you should not manually create `Identity` struct, if you do make sure they contain relevant index to the variable vstore.",
[INFO] [stdout] 143 | |           self[p_idx], v, vstore.size()));
[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] 140 |         debug_assert!(v < vstore.size(), 
[INFO] [stdout] 141 |           "The propagator {:?} has a dependency to the variable {} which is not in the vstore (of size {}).\n\
[INFO] [stdout] 142 |           Hint: you should not manually create `Identity` struct, if you do make sure they contain relevant index to the variable vstore.",
[INFO] [stdout] 143 |           self[p_idx], v, vstore.size());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.94s
[INFO] running `Command { std: "docker" "inspect" "4ece2d05194d95720efec64d64ce6922efe0d8e645090cfb6274dc065a4a8fc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ece2d05194d95720efec64d64ce6922efe0d8e645090cfb6274dc065a4a8fc5", kill_on_drop: false }`
[INFO] [stdout] 4ece2d05194d95720efec64d64ce6922efe0d8e645090cfb6274dc065a4a8fc5