[INFO] fetching crate TCFSMFTTTCS 0.1.3...
[INFO] checking TCFSMFTTTCS-0.1.3 against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384
[INFO] extracting crate TCFSMFTTTCS 0.1.3 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate TCFSMFTTTCS 0.1.3 on toolchain 506512391b1a75ae450d36c9420978402a91abcc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate TCFSMFTTTCS 0.1.3
[INFO] finished tweaking crates.io crate TCFSMFTTTCS 0.1.3
[INFO] tweaked toml for crates.io crate TCFSMFTTTCS 0.1.3 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 5 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 102e12109597949f500614102f66b9898ec56deabc152441eac0cc8af39b98cc
[INFO] running `Command { std: "docker" "start" "-a" "102e12109597949f500614102f66b9898ec56deabc152441eac0cc8af39b98cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "102e12109597949f500614102f66b9898ec56deabc152441eac0cc8af39b98cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "102e12109597949f500614102f66b9898ec56deabc152441eac0cc8af39b98cc", kill_on_drop: false }`
[INFO] [stdout] 102e12109597949f500614102f66b9898ec56deabc152441eac0cc8af39b98cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9f0e6db68d6630e23d2c369f9bb6299ef8df9c7e10ebcc4e4e67a1193c4252b8
[INFO] running `Command { std: "docker" "start" "-a" "9f0e6db68d6630e23d2c369f9bb6299ef8df9c7e10ebcc4e4e67a1193c4252b8", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.84
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking TCFSMFTTTCS v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(external_doc)]
[INFO] [stdout]   |            ^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: use #[doc = include_str!("filename")] instead, which handles macro invocations
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(external_doc)]
[INFO] [stdout]   |            ^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: use #[doc = include_str!("filename")] instead, which handles macro invocations
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `TCFSMFTTTCS` (lib test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `TCFSMFTTTCS` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "9f0e6db68d6630e23d2c369f9bb6299ef8df9c7e10ebcc4e4e67a1193c4252b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f0e6db68d6630e23d2c369f9bb6299ef8df9c7e10ebcc4e4e67a1193c4252b8", kill_on_drop: false }`
[INFO] [stdout] 9f0e6db68d6630e23d2c369f9bb6299ef8df9c7e10ebcc4e4e67a1193c4252b8
[INFO] checking TCFSMFTTTCS-0.1.3 against try#dae34b759e282c069aa28752564694effd121a63 for pr-125384
[INFO] extracting crate TCFSMFTTTCS 0.1.3 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate TCFSMFTTTCS 0.1.3 on toolchain dae34b759e282c069aa28752564694effd121a63
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate TCFSMFTTTCS 0.1.3
[INFO] finished tweaking crates.io crate TCFSMFTTTCS 0.1.3
[INFO] tweaked toml for crates.io crate TCFSMFTTTCS 0.1.3 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 5 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 000990f08eb8fa86ad60dfb9dda439f63d719d26bbe0b68aa0868d04c9629f08
[INFO] running `Command { std: "docker" "start" "-a" "000990f08eb8fa86ad60dfb9dda439f63d719d26bbe0b68aa0868d04c9629f08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "000990f08eb8fa86ad60dfb9dda439f63d719d26bbe0b68aa0868d04c9629f08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "000990f08eb8fa86ad60dfb9dda439f63d719d26bbe0b68aa0868d04c9629f08", kill_on_drop: false }`
[INFO] [stdout] 000990f08eb8fa86ad60dfb9dda439f63d719d26bbe0b68aa0868d04c9629f08
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b5342f29bbae34488f9826db6a9fc56624387b60fdf721b983dcc4a17cab996
[INFO] running `Command { std: "docker" "start" "-a" "6b5342f29bbae34488f9826db6a9fc56624387b60fdf721b983dcc4a17cab996", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] skipping non-2021 edition `2018`
[INFO] running `Command { std: "docker" "inspect" "6b5342f29bbae34488f9826db6a9fc56624387b60fdf721b983dcc4a17cab996", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b5342f29bbae34488f9826db6a9fc56624387b60fdf721b983dcc4a17cab996", kill_on_drop: false }`
[INFO] [stdout] 6b5342f29bbae34488f9826db6a9fc56624387b60fdf721b983dcc4a17cab996