[INFO] fetching crate leanify-many 1.1.1...
[INFO] checking leanify-many-1.1.1 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate leanify-many 1.1.1 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate leanify-many 1.1.1 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 leanify-many 1.1.1
[INFO] finished tweaking crates.io crate leanify-many 1.1.1
[INFO] tweaked toml for crates.io crate leanify-many 1.1.1 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate leanify-many 1.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] 3f02a4f8ab06ee6d1b4c696f34e4ffd5447a3149741bb4cedff1e83fd66c49a5
[INFO] running `Command { std: "docker" "start" "-a" "3f02a4f8ab06ee6d1b4c696f34e4ffd5447a3149741bb4cedff1e83fd66c49a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f02a4f8ab06ee6d1b4c696f34e4ffd5447a3149741bb4cedff1e83fd66c49a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f02a4f8ab06ee6d1b4c696f34e4ffd5447a3149741bb4cedff1e83fd66c49a5", kill_on_drop: false }`
[INFO] [stdout] 3f02a4f8ab06ee6d1b4c696f34e4ffd5447a3149741bb4cedff1e83fd66c49a5
[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] ffe7ae83e46c9affce58c9ebcce7f442670f48db03093fd64cb19012a87d20d4
[INFO] running `Command { std: "docker" "start" "-a" "ffe7ae83e46c9affce58c9ebcce7f442670f48db03093fd64cb19012a87d20d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]     Checking arc-swap v0.4.7
[INFO] [stderr]     Checking pin-project-lite v0.1.7
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking terminal_size v0.1.13
[INFO] [stderr]     Checking recolored v1.9.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]    Compiling termprogress v0.3.4
[INFO] [stderr]    Compiling leanify-many v1.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/main.rs:3:30
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![cfg_attr(nightly, feature(const_fn))]
[INFO] [stdout]   |                              ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/main.rs:3:30
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![cfg_attr(nightly, feature(const_fn))]
[INFO] [stdout]   |                              ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no variant or associated item named `Overflow` found for enum `IntErrorKind` in the current scope
[INFO] [stdout]    --> src/arg.rs:228:21
[INFO] [stdout]     |
[INFO] [stdout] 228 |             IntErrorKind::Overflow => write!(f, ": conversion would result in overflow"),
[INFO] [stdout]     |                           ^^^^^^^^ variant or associated item not found in `IntErrorKind`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no variant or associated item named `Underflow` found for enum `IntErrorKind` in the current scope
[INFO] [stdout]    --> src/arg.rs:229:21
[INFO] [stdout]     |
[INFO] [stdout] 229 |             IntErrorKind::Underflow => write!(f, ": conversion would result in underflow"),
[INFO] [stdout]     |                           ^^^^^^^^^ variant or associated item not found in `IntErrorKind`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no variant or associated item named `Overflow` found for enum `IntErrorKind` in the current scope
[INFO] [stdout]    --> src/arg.rs:228:21
[INFO] [stdout]     |
[INFO] [stdout] 228 |             IntErrorKind::Overflow => write!(f, ": conversion would result in overflow"),
[INFO] [stdout]     |                           ^^^^^^^^ variant or associated item not found in `IntErrorKind`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no variant or associated item named `Underflow` found for enum `IntErrorKind` in the current scope
[INFO] [stdout]    --> src/arg.rs:229:21
[INFO] [stdout]     |
[INFO] [stdout] 229 |             IntErrorKind::Underflow => write!(f, ": conversion would result in underflow"),
[INFO] [stdout]     |                           ^^^^^^^^^ variant or associated item not found in `IntErrorKind`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0557, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `leanify-many`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0557, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "ffe7ae83e46c9affce58c9ebcce7f442670f48db03093fd64cb19012a87d20d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffe7ae83e46c9affce58c9ebcce7f442670f48db03093fd64cb19012a87d20d4", kill_on_drop: false }`
[INFO] [stdout] ffe7ae83e46c9affce58c9ebcce7f442670f48db03093fd64cb19012a87d20d4