[INFO] fetching crate galois_2p8 0.1.1...
[INFO] checking galois_2p8-0.1.1 against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] extracting crate galois_2p8 0.1.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate galois_2p8 0.1.1 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 galois_2p8 0.1.1
[INFO] finished tweaking crates.io crate galois_2p8 0.1.1
[INFO] tweaked toml for crates.io crate galois_2p8 0.1.1 written to /workspace/builds/worker-10/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rusty-fork v0.2.2
[INFO] [stderr]   Downloaded proptest v0.8.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 8a7b4a831686d147a9bc34a74cd89cb1c941838b6a05a5dea238f68d51544859
[INFO] running `Command { std: "docker" "start" "-a" "8a7b4a831686d147a9bc34a74cd89cb1c941838b6a05a5dea238f68d51544859", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8a7b4a831686d147a9bc34a74cd89cb1c941838b6a05a5dea238f68d51544859", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a7b4a831686d147a9bc34a74cd89cb1c941838b6a05a5dea238f68d51544859", kill_on_drop: false }`
[INFO] [stdout] 8a7b4a831686d147a9bc34a74cd89cb1c941838b6a05a5dea238f68d51544859
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 26702f6c73982d83dc688d5e10e0eecff9d7c67f1b7d9c54f79069298d17bb5c
[INFO] running `Command { std: "docker" "start" "-a" "26702f6c73982d83dc688d5e10e0eecff9d7c67f1b7d9c54f79069298d17bb5c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking galois_2p8 v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]     --> src/field.rs:1071:40
[INFO] [stdout]      |
[INFO] [stdout] 1071 |             None => panic!("Polynomial {:?} is not primitive")
[INFO] [stdout]      |                                        ^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]      = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]      |
[INFO] [stdout] 1071 |             None => panic!("Polynomial {:?} is not primitive", ...)
[INFO] [stdout]      |                                                              +++++
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]      |
[INFO] [stdout] 1071 |             None => panic!("{}", "Polynomial {:?} is not primitive")
[INFO] [stdout]      |                            +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking rusty-fork v0.2.2
[INFO] [stderr]     Checking proptest v0.8.7
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]     --> src/field.rs:1071:40
[INFO] [stdout]      |
[INFO] [stdout] 1071 |             None => panic!("Polynomial {:?} is not primitive")
[INFO] [stdout]      |                                        ^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]      = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]      |
[INFO] [stdout] 1071 |             None => panic!("Polynomial {:?} is not primitive", ...)
[INFO] [stdout]      |                                                              +++++
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]      |
[INFO] [stdout] 1071 |             None => panic!("{}", "Polynomial {:?} is not primitive")
[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 9.25s
[INFO] running `Command { std: "docker" "inspect" "26702f6c73982d83dc688d5e10e0eecff9d7c67f1b7d9c54f79069298d17bb5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26702f6c73982d83dc688d5e10e0eecff9d7c67f1b7d9c54f79069298d17bb5c", kill_on_drop: false }`
[INFO] [stdout] 26702f6c73982d83dc688d5e10e0eecff9d7c67f1b7d9c54f79069298d17bb5c