[INFO] fetching crate ifft 0.11.0...
[INFO] checking ifft-0.11.0 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate ifft 0.11.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate ifft 0.11.0 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ifft 0.11.0
[INFO] finished tweaking crates.io crate ifft 0.11.0
[INFO] tweaked toml for crates.io crate ifft 0.11.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate ifft 0.11.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded inotify v0.9.2
[INFO] [stderr]   Downloaded mio v0.7.7
[INFO] [stderr]   Downloaded thread_local v1.1.2
[INFO] [stderr]   Downloaded notify v5.0.0-pre.5
[INFO] [stderr]   Downloaded shellexpand v1.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eb940264e161daa5f7dd5eb9a45300b2a5a3e1de21cf78924f3e3be9e09c1f51
[INFO] running `Command { std: "docker" "start" "-a" "eb940264e161daa5f7dd5eb9a45300b2a5a3e1de21cf78924f3e3be9e09c1f51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb940264e161daa5f7dd5eb9a45300b2a5a3e1de21cf78924f3e3be9e09c1f51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb940264e161daa5f7dd5eb9a45300b2a5a3e1de21cf78924f3e3be9e09c1f51", kill_on_drop: false }`
[INFO] [stdout] eb940264e161daa5f7dd5eb9a45300b2a5a3e1de21cf78924f3e3be9e09c1f51
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 53dd78d776f3e539e37c7fb248bc713e307b906c8461b3879a85ac996826bcbf
[INFO] running `Command { std: "docker" "start" "-a" "53dd78d776f3e539e37c7fb248bc713e307b906c8461b3879a85ac996826bcbf", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.104
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking thread_local v1.1.2
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling libdbus-sys v0.2.1
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking dirs-sys v0.3.5
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[INFO] [stderr]     Checking inotify v0.9.2
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[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking dbus v0.6.5
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[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking anymap v0.12.1
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[INFO] [stderr]     Checking clap v2.33.3
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[INFO] [stderr]     Checking nix v0.23.0
[INFO] [stderr]     Checking shellexpand v1.1.1
[INFO] [stderr]     Checking notify-rust v3.6.3
[INFO] [stderr]     Checking globset v0.4.6
[INFO] [stderr]     Checking ignore v0.4.17
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking ifft v0.11.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `after` is never read
[INFO] [stdout]    --> src/main.rs:499:5
[INFO] [stdout]     |
[INFO] [stdout] 491 | struct IfftRaw {
[INFO] [stdout]     |        ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 499 |     after: Option<String>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `IfftRaw` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `after` is never read
[INFO] [stdout]    --> src/main.rs:499:5
[INFO] [stdout]     |
[INFO] [stdout] 491 | struct IfftRaw {
[INFO] [stdout]     |        ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 499 |     after: Option<String>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `IfftRaw` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 28.36s
[INFO] running `Command { std: "docker" "inspect" "53dd78d776f3e539e37c7fb248bc713e307b906c8461b3879a85ac996826bcbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53dd78d776f3e539e37c7fb248bc713e307b906c8461b3879a85ac996826bcbf", kill_on_drop: false }`
[INFO] [stdout] 53dd78d776f3e539e37c7fb248bc713e307b906c8461b3879a85ac996826bcbf