[INFO] fetching crate enumflags_derive 0.4.1...
[INFO] checking enumflags_derive-0.4.1 against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] extracting crate enumflags_derive 0.4.1 into /workspace/builds/worker-103/source
[INFO] validating manifest of crates.io crate enumflags_derive 0.4.1 on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate enumflags_derive 0.4.1
[INFO] finished tweaking crates.io crate enumflags_derive 0.4.1
[INFO] tweaked toml for crates.io crate enumflags_derive 0.4.1 written to /workspace/builds/worker-103/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quote v0.4.2
[INFO] [stderr]   Downloaded proc-macro2 v0.2.3
[INFO] [stderr]   Downloaded syn v0.12.15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c79ea50dcc15768885bbbc16f18d5432a386c908780e78717060b099d5230aa1
[INFO] running `Command { std: "docker" "start" "-a" "c79ea50dcc15768885bbbc16f18d5432a386c908780e78717060b099d5230aa1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c79ea50dcc15768885bbbc16f18d5432a386c908780e78717060b099d5230aa1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c79ea50dcc15768885bbbc16f18d5432a386c908780e78717060b099d5230aa1", kill_on_drop: false }`
[INFO] [stdout] c79ea50dcc15768885bbbc16f18d5432a386c908780e78717060b099d5230aa1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9fa0549df39f8227fef94b7a4c7c1953bdb2a658c737dabc06596cd24b28546
[INFO] running `Command { std: "docker" "start" "-a" "b9fa0549df39f8227fef94b7a4c7c1953bdb2a658c737dabc06596cd24b28546", kill_on_drop: false }`
[INFO] [stderr]     Checking proc-macro2 v0.2.3
[INFO] [stderr]     Checking quote v0.4.2
[INFO] [stderr]     Checking syn v0.12.15
[INFO] [stderr]     Checking enumflags_derive v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 | /         format!(
[INFO] [stdout] 108 | |             "Value '0b{val:b}' is too big for an {ty}",
[INFO] [stdout] 109 | |             val = max_flag_value,
[INFO] [stdout] 110 | |             ty = ty
[INFO] [stdout] 111 | |         )
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]     = note: this usage of assert!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the assert!() 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] 107 ~         
[INFO] [stdout] 108 |             "Value '0b{val:b}' is too big for an {ty}",
[INFO] [stdout] 109 |             val = max_flag_value,
[INFO] [stdout] 110 |             ty = ty
[INFO] [stdout] 111 ~         
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:143:9
[INFO] [stdout]     |
[INFO] [stdout] 143 | /         format!(
[INFO] [stdout] 144 | |             "The following flags are not unique: {data:?}",
[INFO] [stdout] 145 | |             data = wrong_flag_values
[INFO] [stdout] 146 | |         )
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of assert!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the assert!() 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] 143 ~         
[INFO] [stdout] 144 |             "The following flags are not unique: {data:?}",
[INFO] [stdout] 145 |             data = wrong_flag_values
[INFO] [stdout] 146 ~         
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 | /         format!(
[INFO] [stdout] 108 | |             "Value '0b{val:b}' is too big for an {ty}",
[INFO] [stdout] 109 | |             val = max_flag_value,
[INFO] [stdout] 110 | |             ty = ty
[INFO] [stdout] 111 | |         )
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]     = note: this usage of assert!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the assert!() 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] 107 ~         
[INFO] [stdout] 108 |             "Value '0b{val:b}' is too big for an {ty}",
[INFO] [stdout] 109 |             val = max_flag_value,
[INFO] [stdout] 110 |             ty = ty
[INFO] [stdout] 111 ~         
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:143:9
[INFO] [stdout]     |
[INFO] [stdout] 143 | /         format!(
[INFO] [stdout] 144 | |             "The following flags are not unique: {data:?}",
[INFO] [stdout] 145 | |             data = wrong_flag_values
[INFO] [stdout] 146 | |         )
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of assert!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the assert!() 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] 143 ~         
[INFO] [stdout] 144 |             "The following flags are not unique: {data:?}",
[INFO] [stdout] 145 |             data = wrong_flag_values
[INFO] [stdout] 146 ~         
[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 3.11s
[INFO] running `Command { std: "docker" "inspect" "b9fa0549df39f8227fef94b7a4c7c1953bdb2a658c737dabc06596cd24b28546", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9fa0549df39f8227fef94b7a4c7c1953bdb2a658c737dabc06596cd24b28546", kill_on_drop: false }`
[INFO] [stdout] b9fa0549df39f8227fef94b7a4c7c1953bdb2a658c737dabc06596cd24b28546