[INFO] cloning repository https://github.com/rroohhh/mtf-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rroohhh/mtf-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frroohhh%2Fmtf-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frroohhh%2Fmtf-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6680ff51aa4cda57da2ec6b33d58f004b181124e
[INFO] checking rroohhh/mtf-rs against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frroohhh%2Fmtf-rs" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rroohhh/mtf-rs on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rroohhh/mtf-rs
[INFO] finished tweaking git repo https://github.com/rroohhh/mtf-rs
[INFO] tweaked toml for git repo https://github.com/rroohhh/mtf-rs written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/rroohhh/mtf-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b765295cc428693ec0b731d8f8fd5c2ebae8946d54f523181b43d72bbf7a640c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b765295cc428693ec0b731d8f8fd5c2ebae8946d54f523181b43d72bbf7a640c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b765295cc428693ec0b731d8f8fd5c2ebae8946d54f523181b43d72bbf7a640c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b765295cc428693ec0b731d8f8fd5c2ebae8946d54f523181b43d72bbf7a640c", kill_on_drop: false }`
[INFO] [stdout] b765295cc428693ec0b731d8f8fd5c2ebae8946d54f523181b43d72bbf7a640c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a4b638f7768f63469f38c57f2c9fe20e4109f1b955aa529b3772675293f18d9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9a4b638f7768f63469f38c57f2c9fe20e4109f1b955aa529b3772675293f18d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.43
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling jetscii v0.4.4
[INFO] [stderr]     Checking backtrace-sys v0.1.31
[INFO] [stderr]     Checking backtrace v0.3.34
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking mtf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found keyword `let`
[INFO] [stdout]    --> src/main.rs:919:9
[INFO] [stdout]     |
[INFO] [stdout] 918 | i
[INFO] [stdout]     |  - expected one of 8 possible tokens
[INFO] [stdout] 919 |         let header = StreamHeader {
[INFO] [stdout]     |         ^^^ unexpected token
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found keyword `let`
[INFO] [stdout]    --> src/main.rs:919:9
[INFO] [stdout]     |
[INFO] [stdout] 918 | i
[INFO] [stdout]     |  - expected one of 8 possible tokens
[INFO] [stdout] 919 |         let header = StreamHeader {
[INFO] [stdout]     |         ^^^ unexpected token
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `TYPE_1` should have an upper camel case name
[INFO] [stdout]   --> src/main.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     TYPE_1,
[INFO] [stdout]    |     ^^^^^^ help: convert the identifier to upper camel case: `Type1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `TYPE_2` should have an upper camel case name
[INFO] [stdout]   --> src/main.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     TYPE_2,
[INFO] [stdout]    |     ^^^^^^ help: convert the identifier to upper camel case: `Type2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `NO_STRINGS` should have an upper camel case name
[INFO] [stdout]    --> src/main.rs:210:5
[INFO] [stdout]     |
[INFO] [stdout] 210 |     NO_STRINGS,
[INFO] [stdout]     |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `NoStrings`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `ANSI_STR` should have an upper camel case name
[INFO] [stdout]    --> src/main.rs:211:5
[INFO] [stdout]     |
[INFO] [stdout] 211 |     ANSI_STR,
[INFO] [stdout]     |     ^^^^^^^^ help: convert the identifier to upper camel case: `AnsiStr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `UNICODE_STR` should have an upper camel case name
[INFO] [stdout]    --> src/main.rs:212:5
[INFO] [stdout]     |
[INFO] [stdout] 212 |     UNICODE_STR,
[INFO] [stdout]     |     ^^^^^^^^^^^ help: convert the identifier to upper camel case: `UnicodeStr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `DOS_Windows3_X` should have an upper camel case name
[INFO] [stdout]    --> src/main.rs:697:5
[INFO] [stdout]     |
[INFO] [stdout] 697 |     DOS_Windows3_X,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `DosWindows3X`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `jetscii::ByteSubstring`
[INFO] [stdout]    --> src/main.rs:987:5
[INFO] [stdout]     |
[INFO] [stdout] 987 | use jetscii::ByteSubstring;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `TYPE_1` should have an upper camel case name
[INFO] [stdout]   --> src/main.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     TYPE_1,
[INFO] [stdout]    |     ^^^^^^ help: convert the identifier to upper camel case: `Type1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `TYPE_2` should have an upper camel case name
[INFO] [stdout]   --> src/main.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     TYPE_2,
[INFO] [stdout]    |     ^^^^^^ help: convert the identifier to upper camel case: `Type2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `NO_STRINGS` should have an upper camel case name
[INFO] [stdout]    --> src/main.rs:210:5
[INFO] [stdout]     |
[INFO] [stdout] 210 |     NO_STRINGS,
[INFO] [stdout]     |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `NoStrings`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `ANSI_STR` should have an upper camel case name
[INFO] [stdout]    --> src/main.rs:211:5
[INFO] [stdout]     |
[INFO] [stdout] 211 |     ANSI_STR,
[INFO] [stdout]     |     ^^^^^^^^ help: convert the identifier to upper camel case: `AnsiStr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `UNICODE_STR` should have an upper camel case name
[INFO] [stdout]    --> src/main.rs:212:5
[INFO] [stdout]     |
[INFO] [stdout] 212 |     UNICODE_STR,
[INFO] [stdout]     |     ^^^^^^^^^^^ help: convert the identifier to upper camel case: `UnicodeStr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `DOS_Windows3_X` should have an upper camel case name
[INFO] [stdout]    --> src/main.rs:697:5
[INFO] [stdout]     |
[INFO] [stdout] 697 |     DOS_Windows3_X,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `DosWindows3X`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `jetscii::ByteSubstring`
[INFO] [stdout]    --> src/main.rs:987:5
[INFO] [stdout]     |
[INFO] [stdout] 987 | use jetscii::ByteSubstring;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mtf`
[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 previous error; 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "9a4b638f7768f63469f38c57f2c9fe20e4109f1b955aa529b3772675293f18d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a4b638f7768f63469f38c57f2c9fe20e4109f1b955aa529b3772675293f18d9", kill_on_drop: false }`
[INFO] [stdout] 9a4b638f7768f63469f38c57f2c9fe20e4109f1b955aa529b3772675293f18d9