[INFO] fetching crate syntex_fmt_macros 0.5.0...
[INFO] testing syntex_fmt_macros-0.5.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate syntex_fmt_macros 0.5.0 into /workspace/builds/worker-52/source
[INFO] validating manifest of crates.io crate syntex_fmt_macros 0.5.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate syntex_fmt_macros 0.5.0
[INFO] finished tweaking crates.io crate syntex_fmt_macros 0.5.0
[INFO] tweaked toml for crates.io crate syntex_fmt_macros 0.5.0 written to /workspace/builds/worker-52/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c9211e40b6c67ad06a2ce6b270b748de13e6c7a7aee8430437a53998d771cae
[INFO] running `Command { std: "docker" "start" "-a" "1c9211e40b6c67ad06a2ce6b270b748de13e6c7a7aee8430437a53998d771cae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c9211e40b6c67ad06a2ce6b270b748de13e6c7a7aee8430437a53998d771cae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c9211e40b6c67ad06a2ce6b270b748de13e6c7a7aee8430437a53998d771cae", kill_on_drop: false }`
[INFO] [stdout] 1c9211e40b6c67ad06a2ce6b270b748de13e6c7a7aee8430437a53998d771cae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dbbe5dc0fd3d71d0304bd600769baf85190693139f1c72a2e16361481c2c55b2
[INFO] running `Command { std: "docker" "start" "-a" "dbbe5dc0fd3d71d0304bd600769baf85190693139f1c72a2e16361481c2c55b2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syntex_fmt_macros v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:397:13
[INFO] [stdout]     |
[INFO] [stdout] 397 |         let mut end;
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "dbbe5dc0fd3d71d0304bd600769baf85190693139f1c72a2e16361481c2c55b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbbe5dc0fd3d71d0304bd600769baf85190693139f1c72a2e16361481c2c55b2", kill_on_drop: false }`
[INFO] [stdout] dbbe5dc0fd3d71d0304bd600769baf85190693139f1c72a2e16361481c2c55b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 37fe3305aedbf720b2c63656ee0279a2c6aab20f6685875835bc91df40fe5192
[INFO] running `Command { std: "docker" "start" "-a" "37fe3305aedbf720b2c63656ee0279a2c6aab20f6685875835bc91df40fe5192", kill_on_drop: false }`
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:397:13
[INFO] [stdout]     |
[INFO] [stdout] 397 |         let mut end;
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling syntex_fmt_macros v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:397:13
[INFO] [stdout]     |
[INFO] [stdout] 397 |         let mut end;
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.61s
[INFO] running `Command { std: "docker" "inspect" "37fe3305aedbf720b2c63656ee0279a2c6aab20f6685875835bc91df40fe5192", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37fe3305aedbf720b2c63656ee0279a2c6aab20f6685875835bc91df40fe5192", kill_on_drop: false }`
[INFO] [stdout] 37fe3305aedbf720b2c63656ee0279a2c6aab20f6685875835bc91df40fe5192
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c894eda7896826f9956b34c32e948314fc2a236eb2b51690e66422d59b5ccd57
[INFO] running `Command { std: "docker" "start" "-a" "c894eda7896826f9956b34c32e948314fc2a236eb2b51690e66422d59b5ccd57", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:397:13
[INFO] [stderr]     |
[INFO] [stderr] 397 |         let mut end;
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `syntex_fmt_macros` (lib) generated 1 warning
[INFO] [stderr] warning: `syntex_fmt_macros` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/syntex_fmt_macros-04972c345cd981b7)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test tests::format_counts ... ok
[INFO] [stdout] test tests::format_align_fill ... ok
[INFO] [stdout] test tests::invalid05 ... ok
[INFO] [stdout] test tests::format_type ... ok
[INFO] [stdout] test tests::invalid01 ... ok
[INFO] [stdout] test tests::invalid04 ... ok
[INFO] [stdout] test tests::format_mixture ... ok
[INFO] [stdout] test tests::simple ... ok
[INFO] [stdout] test tests::format_nothing ... ok
[INFO] [stdout] test tests::format_flags ... ok
[INFO] [stdout] test tests::format_position_nothing_else ... ok
[INFO] [stdout] test tests::invalid02 ... ok
[INFO] [stdout] test tests::format_position ... ok
[INFO] [stdout] test tests::invalid06 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests syntex_fmt_macros
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c894eda7896826f9956b34c32e948314fc2a236eb2b51690e66422d59b5ccd57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c894eda7896826f9956b34c32e948314fc2a236eb2b51690e66422d59b5ccd57", kill_on_drop: false }`
[INFO] [stdout] c894eda7896826f9956b34c32e948314fc2a236eb2b51690e66422d59b5ccd57