[INFO] fetching crate amplify_num 0.1.2...
[INFO] checking amplify_num-0.1.2 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate amplify_num 0.1.2 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate amplify_num 0.1.2 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate amplify_num 0.1.2
[INFO] finished tweaking crates.io crate amplify_num 0.1.2
[INFO] tweaked toml for crates.io crate amplify_num 0.1.2 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5bfc0b36f6ca41077901d3b313f7125bbc9d88835abf784e1a791637b531239e
[INFO] running `Command { std: "docker" "start" "-a" "5bfc0b36f6ca41077901d3b313f7125bbc9d88835abf784e1a791637b531239e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5bfc0b36f6ca41077901d3b313f7125bbc9d88835abf784e1a791637b531239e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bfc0b36f6ca41077901d3b313f7125bbc9d88835abf784e1a791637b531239e", kill_on_drop: false }`
[INFO] [stdout] 5bfc0b36f6ca41077901d3b313f7125bbc9d88835abf784e1a791637b531239e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d9fad5c8888b7a5b2a7dbddbc43c87c4a1785f4deddf819b16c41ff080ae17b
[INFO] running `Command { std: "docker" "start" "-a" "1d9fad5c8888b7a5b2a7dbddbc43c87c4a1785f4deddf819b16c41ff080ae17b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking amplify_num v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking serde_yaml v0.8.17
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stdout] error: cannot find macro `format` in this scope
[INFO] [stdout]    --> src/bigint.rs:960:13
[INFO] [stdout]     |
[INFO] [stdout] 960 |             format!("{}", max_val),
[INFO] [stdout]     |             ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `format` in this scope
[INFO] [stdout]    --> src/bigint.rs:949:13
[INFO] [stdout]     |
[INFO] [stdout] 949 |             format!("{}", u256::from(::core::u64::MAX)),
[INFO] [stdout]     |             ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `format` in this scope
[INFO] [stdout]    --> src/bigint.rs:945:13
[INFO] [stdout]     |
[INFO] [stdout] 945 |             format!("{}", u256::from(0xDEADBEEFu64)),
[INFO] [stdout]     |             ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `amplify_num`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "1d9fad5c8888b7a5b2a7dbddbc43c87c4a1785f4deddf819b16c41ff080ae17b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d9fad5c8888b7a5b2a7dbddbc43c87c4a1785f4deddf819b16c41ff080ae17b", kill_on_drop: false }`
[INFO] [stdout] 1d9fad5c8888b7a5b2a7dbddbc43c87c4a1785f4deddf819b16c41ff080ae17b